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    • 专利摘要:
    This disclosure relates to process bus systems and methods without configuration. in one embodiment, the system includes at least one process interface unit (piu) (135). piu (135) includes at least one preconfigured communication port (225) defined by one of a factory setting or a product code request. at least one piu 135 is operable to transmit and receive a data stream. The data stream includes at least one data set. The data set includes at least one field for sampled values measured from at least one source. The source includes one of a current transformer (115) or a voltage transformer (120). The dataset may additionally include a datetime stamp and a unique identifier associated with the source. the system may include at least one smart electronic device (IED) (145) communicatively coupled to the piu (135). The ied (145) may be operable to receive the piu (135) data stream and transform the sampled values based on user defined transformation factors.
    公开号:BR102017016085A2
    申请号:R102017016085-8
    申请日:2017-07-27
    公开日:2018-05-15
    发明作者:G. Kanabar Mitalkumar；Hamour Ihab
    申请人:General Electric Technology Gmbh；
    IPC主号:
    专利说明:

    “SYSTEMS AND METHOD FOR A PROCESS BUS” Field of the Technique [001] The disclosure refers to a digital substation and, more particularly, to systems and methods of a process bus without configuration with architectural redundancy in digital substations.
    Background [002] The use of digital substations has grown. Differences between digital substations and conventional substations can include a reduction in cabling between components in a substation (such as transformers, circuit breakers, protection relays, and so on) and information sharing between devices from multiple vendors to provide device interoperability.
    [003] The operations of the components of a digital substation can be automated with the use of mixing units (MUs) or process interface units (PlUs) and Intelligent Electronic Devices (lEDs). The LEDs can be programmed to monitor, control and protect the substation components. A process bus, such as an Ethernet network, can be used to organize communications between the LEDs and the MUs / PIUs.
    [004] Conventional standards may include requirements for physical security and cyber security of equipment in a switchyard of a digital substation. Compliance with requirements may require a certain engineering process to configure the LEDs and a process bus. Which reconfiguration or maintenance of digital substation equipment can be expensive and time-consuming.
    [005] Additional measurements may be necessary to ensure the reliability of communications between lEDs and substation components. Conventional solutions to provide communications reliability can be based on the parallel redundancy protocol (PRP) or the High Availability Continuous Redundancy (HSR) protocol. However, parallel redundancy for PRP or HSR can be provided using similar switched Ethernet networks, which may have a tendency to have similar failure modes associated with packet switching techniques.
    Brief Description of the Disclosure [006] This disclosure refers to systems and methods of systems and methods for process bus without configuration with architectural redundancy in digital substations. Certain achievements of the development can improve cyber security, engineering, reliability and maintenance of digital substations.
    [007] According to a development of the development, a system for process bus without configuration in a digital substation is provided. The system can include at least one process interface unit (PIU). The PIU can include at least one preconfigured communication port defined by one of a factory definition or a product code order. The PIU can be operable to transmit and receive a pre-configured data stream. The preconfigured data stream can include at least one data set. The data set can include at least one field for a unique identifier (UID). The system may additionally include at least one intelligent electronic device (IED). The IED can be communicatively coupled to the PIU. The IED can be operable to transmit and receive the pre-configured data flow from the PIU. The IED can map the preconfigured data stream to a user-defined source based on the UID. The IED can transform the preconfigured data flow based on user-defined transformation factors to avoid configuration in the PIU.
    [008] In certain developments of the disclosure, the data set can be defined using a preconfigured IED Description (IID) file associated with the PIU. In certain embodiments, the preconfigured data stream may include preconfigured sample values. The pre-configured sampled values can include a current output directly measured from a current transformer. The pre-configured sampled values can also include a voltage output directly measured from a voltage transformer.
    [009] In some developments of the disclosure, the preconfigured data flow may include a Generic Object Oriented Substation (GOOSE) Event. GOOSE can include status and similar information directly measured for one of the process transducers that include the switching device. In certain disclosure embodiments, the preconfigured data stream is formatted based on at least one of the IEC 61850 format or the IEC 61869 format.
    [010] In some developments of the disclosure, the UID is preconfigured using one of the factory settings or a product order code.
    [011] In some developments of the development, the system may include an operable Ethernet network to transmit data between the PIU and the IED. In some embodiments, the IED may be additionally operable to receive from the PIU, in parallel: the pre-configurable data flow through a point-to-point connection and a second data flow through the Ethernet network. In certain embodiments, the IED may be additionally operable to adjust the quality of the data in the preconfigured stream using the second data stream based on a network failover mechanism.
    [012] In certain disclosures, the network failover mechanism may include determining that at least one of the failure conditions is satisfied: at least one frame in the preconfigured data stream is lost or delayed, the quality of the data at least one frame in the data stream is below a first threshold, the quality of time associated with data at least one frame in the data stream is below a second threshold, or a health indicator associated with one of a behavior or a mode of operation of at least one PIU is below a third threshold. In response to the determination, the network failover mechanism can provide identification of at least one redundant frame in the second data stream. The network failover mechanism may include determining whether the data quality in the redundant frame is above the first threshold and the time quality in at least one redundant frame is above the second threshold. If the results of the determination are positive, a network failover mechanism can use at least one redundant frame for processing. If, on the other hand, the results of the determination are negative, the network failover mechanism can determine a number of frames in the data stream for which the failure conditions are satisfied. If the number is below a tolerance threshold, the network failover mechanism can label frames as unsatisfactory and send frames for further processing. If the number is above the tolerance threshold, the network failover mechanism can proceed with the issue of at least one alarm.
    [013] According to another development of the disclosure, a method for a bus without configuration is provided. The method may allow you to provide at least one PIU. The PIU can include at least one preconfigured communication port defined by one of a factory definition or a product code order. The method can also include transmitting and receiving a data stream pre-configured by the PIU. The data stream can include at least one data set. The data set can include at least one field for a unique identifier preconfigured using factory definitions or the product code order.
    [014] The method may also include providing at least one IED communicatively coupled to the PIU. The method may also include receiving, through the IED, the pre-configured data flow from the PIU. The method may include mapping, through the IED, the pre-configured data flow to a user-defined source based on the UID. The method can additionally allow to transform, through the IED, the values sampled with the use of user-defined transformation factors to avoid configuration in the PIU.
    [015] Other achievements, systems, methods, resources and aspects will become evident from the following description in conjunction with the figures below.
    Brief Description of the Figures [016] Figure 1 is a block diagram that illustrates an exemplary digital substation, according to certain developments of the development.
    [017] Figure 2 is a block diagram that illustrates a process bus without exemplary configuration, according to certain realizations of the development.
    [018] Figure 3 is a block diagram that illustrates a process bus without exemplary configuration with architectural redundancy, according to certain realizations of the disclosure.
    [019] Figure 4 is a flowchart that illustrates an exemplary method for a process bus without configuration, according to certain developments of the disclosure.
    [020] Figure 5 is a flowchart that illustrates an exemplary method for providing a process bus without configuration with architectural redundancy, according to certain realizations of the disclosure.
    [021] Figure 6 is a block diagram illustrating an exemplary controller for processing data, according to an embodiment of the disclosure.
    [022] The following detailed description includes references to the accompanying figures that form part of the detailed description. The figures depict illustrations, according to exemplary achievements. These exemplary achievements, which are also referred to in the present document as “examples”, are described in sufficient detail to enable those skilled in the art to practice the present material. Exemplary realizations can be combined, other realizations can be used, or structural, logical and electrical changes can be made, without departing from the scope of the claimed matter. The following detailed description, therefore, should not be considered in a limiting sense, and the scope is defined by the appended claims and their equivalents.
    Detailed Description [023] Certain realizations of the development can include systems and methods for a process bus without configuration in digital substations. In certain examples, some achievements of systems and methods can improve the security and stability of digital substations by eliminating or otherwise minimizing the need for physical security and providing cyber security for equipment in digital substations. Certain realizations of the disclosure can provide a redundancy of architecture of a communication network allowing the elimination or minimization of common failure modes in redundant communication channels.
    [024] In certain developments of the development, a system for a process bus without configuration. The system can include at least one process interface unit (PIU). The PIU includes at least one preconfigured communication port defined by one of a factory definition or a product code order. The PIU can be operable to transmit and receive a data stream. The data stream can include at least one pre-configured data set. The PIU's preconfigured dataset can include at least one field for sampled values measured from at least one source. The source can include at least one of a current transformer (CT) or a voltage transformer (VT). The preconfigured data set can additionally include a field for a unique identifier associated with the source. The system can include at least one intelligent electronic device (IED) communicatively coupled to the PIU. The IED can be operable to receive the data flow from the PIU and transform the sampled values based on user-defined transformation factors and, thus, avoid configuration in the PIU.
    [025] Technical effects of certain disclosure achievements may include providing compliance with infrastructure protection requirements without requiring physical security of the mixing units in the switchyards of digital substations. Additional technical effects of certain disclosure accomplishments can allow you to reduce engineering efforts in a process bus configuration for a customer or design team. Certain technical effects of certain disclosure achievements can also provide increased reliability of the process bus, thereby improving the functionality of the process bus.
    [026] Now, in reference to the Figures, Figure 1 is a block diagram illustrating an exemplary digital substation 100, according to certain developments of the development. Digital substation 100 may include a switchyard 105. Switchyard 105 may include primary equipment such as, but without limitation, CTs 115, VTs 120, protective relays 125, circuit breakers 130, switching devices and other devices involved in the operations of the digital substation 100. CTs 115 and VTs 120 can be operable to receive high voltage current through primary supply lines 110 and transfer a low voltage current to secondary supply lines 140. In some embodiments, switchyard 105 may include units of process interface / mixing units (PlU / MUs) 135. PlU / MUs 135 can be operable to measure current and voltage from CTs 115 and VTs 120 and provide control commands for protective relays 125. In response to receiving control commands, protective relays 125 can be configured to trip circuit breakers 130. In some embodiments, PlU / MUs 135 can be connected , through copper wires, to CTs 115, VTs 120 and / or protective relays 125.
    [027] In some embodiments, data measured by PlU / MUs 135 can be supplied to one or more lEDs 145. LEDs 145 can be operable to analyze data obtained from PlU / MUs 135, make a decision based on analysis, and send control commands back to PlU / MUs 135. The data can include one or more sampled values (SV) and associated event data, such as data formatted as Generic Object Oriented Substation Event (GOOSE data) ). SVs can include electrical measurements received from CTs 115 and VTs 120 converted by PlU / MUs 135 into a digital format. GOOSE data can flow bidirectionally. GOOSE data can include state or analogous digital information obtained by PlU / MUs 135 from the process and sent to lEDs 145. GOOSE data can additionally include output or functions from lEDs 145 to PlU / MUs 135. In several Developments of the disclosure, lEDs 145 and PlU / MUs 135 can include a controller (a combination of hardware and software) for data processing. An exemplary controller suitable for data processing is described below with reference to the Figure. 6.
    [028] A process bus 160 (a specific communications arrangement) can be used to organize communications between PlU / MUs 135 and lEDs 145. In some embodiments, the process bus can include point-to-point communications between lEDs 145 and PlU / MUs 135. In some embodiments, process bus 150 may include an Ethernet-based local area network (LAN) 230 configured to provide a connection between PlU / MUs 135 and lEDs 145. LAN 230 may include optical wires and Ethernet switches.
    [029] Figure 2 is a block diagram illustrating an example system 200 for a process bus without configuration, according to certain developments of the disclosure. System 200 can include lEDs 145, PlU / MUs 135, LAN 230 and engineering computer 220. PlU / MUs 135 include communications ports 225. PlU / MUs 135 can support four or more communication ports 225 with individual logic devices and time synchronization clocks.
    [030] In some realizations of the disclosure, lEDs 145 may include pre-configurable processing 205 of data received from at least one of the 135 PlU / MUs. In some embodiments, lEDs 145 may include pre-configurable processing and configurable 210 of databases received from at least one of the PlU / MUs 135. An individual PIU / MU 135 can provide data to a specific IED 145 via a point-to-point connection. In some embodiments, the pre-configurable processing 205 is operable to process the databases obtained through the point-to-point connection. In some embodiments, an individual configured or preconfigured PIU / MU 135 can publish databases to LAN 230, thereby allowing lEDs 145 to subscribe to receive data from PlU / MUs 135. In some embodiments, preprocessing -configurable and configurable 210 can process the data obtained through LAN 230.
    [031] In some disclosure embodiments, system components 200 for a process bus are preconfigured using factory settings and / or primary equipment product order codes and PlU / MUs 135. In some embodiments , PlU / MUs 135 can be operable to transfer data to LEDs 145 in databases. Databases can include a digitized unique identifier (UID) and SV. The digitized SVs can include secondary values measured from the CTs 115, VTs 120 available, and the timestamps or sampled count. Databases transferred and received may also include GOOSE data based on hardware available for contact inputs (Cl) for protective relays 125 and other logic / device states. In some embodiments, PlU / MUs 135 can receive preconfigured databases that include GOOSE data for contact outputs (CO) from protective relays 125 and other related commands and states. In some embodiments, the data flow between PlU / MUs 135 and lEDs 145 is formatted based on IEC 61850 or IEC 61869 format.
    [032] In some realizations of the development, PlU / MUs 135 can be configured to flow SV measured with the UID. The measured SV can include raw samples of currents and voltages from CTs 115 and VTs 120 at secondary values. The PIU / MU 135 can specify a fixed (factory-supplied) preset (which includes UID) that uses IID. PlU / MUs 135 may not need a configured IED description (CID) file for configuration. Thus, PlU / MUs 135 may not require any configuration at the installation site.
    [033] In some realizations of the revelation, lEDs 145 and LAN switches 230 can be configured with CID files using the pre-configured IID files (factory-supplied) of the PlU / MUs 135. In some realizations, the 145 LEDs can receive SV streams at secondary values with UID. After receiving the SV, LEDs 145 can apply user-configurable transformation factors (TFs), for example, CT ratios and VT ratios, ratio and angle errors, and so on, in order to convert the received SV into other formats (for example, primary values) to perform further processing.
    [034] In some other developments of the disclosure, PlU / MUs 135 may apply TFs or other format factors communicated from the factory as part of an order code or factory service definitions if the factory encodes the format factors in the PlU / MUs 135. In these realizations, PlU / MUs 135 can send a factory-configured flow with a factory-configured ID (instead of UID) and factory-configured TFs by SV streams at primary values instead of applying configurable TFs per user to secondary values on lEDs 145.
    [035] In certain embodiments, engineering computer 220 may be required for an initial configuration of lEDs 145 and LAN 230. At the time of first use of system 200, for example, when commissioning digital substation 100, the engineering computer 220 can be used to read preconfigured IID files from PlU / MUs 135. LEDs 135 and LAN 230 network switches can then be configured with CID files using preconfigured IID files PlU / MUs 135. Engineering computer 220 may not be necessary during regular operations of digital substation 100 and can be removed from system 200.
    [036] Figure 3 is a block diagram illustrating an example system 300 for a process bus without configuration with architectural redundancy, according to certain realizations of the disclosure. System 300 can include lEDs 145, PIU / MU 135 devices, and LAN 230. PlU / MUs 135 can include communications ports 225. The features of system elements 300 are analogous to the functionality of corresponding system elements 200 described in Figure 2, except for lEDs 145. In the example in Figure 3, lEDs 145 include 235 architecture redundancy processing.
    [037] In some developments of the disclosure, two alternative network ports of lEDs 145 can be configured to receive two data streams from databases from the PIU / MU 135, separately. The first (or primary) of the two alternative network ports can be configured for a dedicated point-to-point connection 240 between IED 145 and PIU / MU 135. In some embodiments, the point-to-point connection 240 can be pre-configured . The second (or secondary) of the two alternative ports can be connected to a shared Ethernet switch of LAN 230 to provide a configurable network connection 245 between IED 145 and PIU / MU 135. In this way, the IED can receive a first PIU / MU 135 data stream via the point-to-point connection 245 and a second PIU / MU 135 data stream via the 245 Ethernet network connection. Architecture redundancy processing 235 may include analyzing the two flows and adjust the two data streams in order to improve the quality of the data received.
    [038] In some developments of the disclosure, the IED can identify the SV flow based on an arrival time. In some realizations, the IED can check quality and health indicators, such as SV data quality and time stamps. Time quality can be related to frame delays in a data stream and missing timestamps. In some embodiments, if part of the SV data in the first data stream is missing or received with a decreased quality, the IED can search for the missing SV data in the second data stream. If the quality of the corresponding SV data in the second data stream is within a predetermined tolerance, then the SV data from the second data stream can be used for further processing, such as turning secondary values for current and voltage into values primary. In some embodiments, the IED can provide event logs and other notifications in the event of identified gaps in data flows. Since the first data stream and the second data stream are obtained through two different types of connections, this approach can provide improved reliability of the network connection since the two connections have different failure modes.
    [039] Figure 4 is a flowchart that illustrates an example method 400 for a process bus without configuration, according to a particular development of the development. Method 400 can, for example, be implemented in digital substation 100. Some operations of method 400 can be incorporated in program instructions for LED controllers 145 and PlU / MUs 135.
    [040] In block 402, method 400 can start with the supply of at least one PIU. The PIU includes at least one preconfigured communication port defined by one of a factory definition or a product code order.
    [041] In block 404, method 400 can transmit and receive, through the PIU, a pre-configurable data flow. The pre-configurable data stream can include at least one data set. The data set can include sampled values measured from a current transformer or a voltage transformer. The data set may additionally include GOOSE data. The data set can additionally include a unique identifier associated with the PIU.
    [042] In block 406, method 400 can provide at least one intelligent electronic device (IED) communicatively coupled to the PIU. In block 408, method 400 can receive, through the IED, the pre-configurable data flow from the PIU. In block 410, method 400 can optionally receive, via the IED, a second data stream using a network connection. In block 412, method 400 can optionally adjust, through the IED, the data flow using the second data flow based on the execution of a network failover mechanism. In block 414, method 400 can map, through the IED, the pre-configured data flow to a user-defined source using the UID. In block 416, method 400 can additionally transform, through the IED, the pre-configured data flow that includes sampled values and / or GOOSE using UID and user-defined transformation factors.
    [043] Figure 5 is a flowchart that illustrates an example method 500 for a network failover mechanism, according to a disclosure realization. Method 500 can be implemented, for example, using IED 145 of system 300 described above with reference to the Figure. 3. Method 500 can provide additional details for method 412 block 400. Method 500 operations can be incorporated into the LED 145 controller program instructions.
    [044] In block 502, method 500 can begin with the detection of a failure due to loss or delay of frames in a (first) data stream or with the determination that the quality of data or time has been decreased below one threshold quality value. The data can include sampled values and / or GOOSE data. The threshold quality value can be independent for sampled values, GOOSE data and time. In some realizations of the disclosure, detecting a failure may include determining that a health indication is below a health threshold. The health indication can be associated with a behavior and / or a mode of operation of the PIU that sends the first data stream. In block 504, method 500 can identify redundant frames from a second data stream. Redundant frames can represent frames in the data stream that are missing or have decreased quality. In block 506, method 500 can determine the possibility that a quality of sampled values and timestamps in the redundant frames are within thresholds.
    [045] If the quality of the data and time in the redundant frames is within the thresholds, method 500 can proceed, in block 508, with the sending of the redundant frames from the second data stream for further processing and quality adjustment of the sampled values obtained from the first data stream.
    [046] If the quality of the data and time in the redundant frames is not within the thresholds, then method 500 can record, in block 510, the condition of the data and timestamps sampled and check a number of the frames affected by failure. In block 512, method 500 can determine whether a number of frames affected by the fault are within tolerance. If the number of frames affected by the failure is not within tolerance, then method 500 can issue an alarm in block 514. In block 516, method 500 can label the affected frames as having unsatisfactory quality and send data to the affected frames for further processing. In block 518, method 500 can determine whether good quality data is available in the (first) data stream.
    [047] Figure 6 depicts a block diagram illustrating an exemplary controller 600 for processing data flows, according to an embodiment of the disclosure. Controller 600 may include memory 610 that stores programmed logic 620 (e.g., software) and may store data 630, such as geometric data and operating data from a substation, a dynamic model, performance measures, and the like. Memory 610 can also include an operating system 640.
    [048] A 650 processor can use the 640 operating system to execute programmed logic 620, and in doing so, it can also use 630 data. A 660 data bus can provide communication between a 610 memory and the 650 processor. Users can interface with the 600 controller through at least one 670 user interface device, such as a keyboard, mouse, control panel, or any other devices capable of communicating data to and from the 600 controller. The 600 controller can be in communication with the online substation while operating, as well as in communication with the offline substation while not operating, through an input / output (l / O) 680 interface. More specifically, one or more of the 600 controllers can perform the execution of the model-based control system, in order, however, without limitation, to receive geometric data and operational data associated with the components of the sub create a dynamic substation model for components based on geometric and operational data, generate an alternative model for a specific performance measurement based on the dynamic model, incorporate the alternative model in an optimization procedure, and exercise the procedure of optimization under an optimization objective to optimize substation operations for specific performance measurement. In addition, it should be noted that other external devices or multiple other substations may be in communication with controller 600 through the 1/0 680 interface. Additionally, controller 600 and programmed logic 620 deployed in this way may include software, hardware, firmware or any combination thereof. It should be noted that multiple 600 controllers can be used, by which different functions described in this document can be performed on one or more different 600 controllers.
    [049] References are made to a block diagram of systems, methods, devices and computer program products according to exemplary achievements. It will be understood that at least some of the blocks in the block diagrams, and combinations of blocks in the block diagrams, can be deployed at least partially by computer program instructions. These computer program instructions can be loaded onto a general purpose computer, special purpose computer, special purpose hardware-based computer, or other programmable data processing devices to produce a machine, so that the instructions that are executed on the computer or other programmable data processing devices create means to implement the functionality of at least some of the blocks in the block diagrams, or combinations of blocks in the discussed block diagrams.
    [050] These computer program instructions can also be stored in a non-transitory computer-readable memory that can direct a computer or other programmable data processing devices to function in a particular way, so that instructions stored in readable memory by computer produce an article of manufacture that includes means of instruction that implement the function specified in the block or blocks. Computer program instructions can be loaded onto a computer or programmable data processing device to take a series of operational steps to be performed on the computer or another programmable device to produce a computer-implemented process so that instructions are executed on the computer or other programmable devices provide operations to implement the functions specified in the block or blocks.
    [051] One or more components of the systems and one or more elements of the methods described in this document can be deployed through an application program running on a computer operating system. They can also be practiced with other computer system configurations, which include portable devices, multiprocessor systems, programmable or microprocessor based consumer electronics, minicomputers, mainframe computers and the like.
    [052] Application programs that are components of the systems and methods described in this document may include routines, programs, components, data structures and so on that implant certain types of abstract data and perform certain tasks or actions. In a distributed computing environment, the application program (in whole or in part) can be located in local memory or other storage. Additionally or alternatively, the application program (in whole or in part) can be located in remote memory or in storage to allow circumstances in which tasks are performed by remote processing devices connected via a communications network.
    [053] Many modifications and other realizations of the exemplary descriptions set out in this document to which these descriptions belong will become evident demonstrating the benefit of the teachings presented in the previous descriptions and in the associated figures. Therefore, it will be noted that the disclosure can be incorporated in many forms and should not be limited to the exemplary achievements described above. Therefore, it should be understood that the disclosure is not intended to be limited to the specific developments disclosed and that the modifications and other developments are intended to be included within the scope of the appended claims. Although specific terms are used in this document, they are used in a generic and descriptive sense only and not for purposes of limitation.
    Parts List Figure 1 100 - digital substation 105 - switchyard 110 - primary power lines 115 - current transformer (or transformers) (CTs) 120 - voltage transformer (or transformers) (VTs) 125 - protective relay (or relays) 130 - circuit breaker (circuit breakers) 135 - process interface units / mixing units (PlU / MUs) 140 - secondary power line (or lines) 145 - intelligent electronic device (or devices) 150 - copper wires 160 - process bus 230 - local area network (LAN) Figure 2 135 - process interface units / mixing units (PlU / MUs) 145-IEDs 200 - system 205 - pre-configurable processing 210 - pre-configurable processing and configurable 220 - engineering computer 225 - communication ports 230 - local area network (LAN) Figure 3 135 - process interface units / blending units (PIU / MUs) 145 - IEDs 205 - pre-configurable processing 210 - processing pre -configurable and configurable 225 - communication ports 230 - local area network (LAN) 235 - redundancy processing of architecture 240 - point-to-point connection 245 - configurable network connection 300 - system Figure 4 400 - method 402 - block 404 - block 406 - block 408 - block 410 - block 412 - block 414 - block 416 - block Figure 5 500 - method 502 - block 504 - block 506 - block 508 - block 510 - block 512 - block 514 - block 516 - block 518 - block Figure 6 600 - Controller 610 - memory 620 - programmed logic 630 - data 640 - operating system 650 - processor 660 - data bus 670 - user interface device 680- input / output interface (I / O) Claims
    权利要求:
    Claims (10)
    [1]
    1. SYSTEM (200) FOR A PROCESS BUS without configuration, the system (200) being characterized by the fact that it comprises: at least one process interface unit (PIU) (135) that includes at least one port pre-configured communication (225), defined by one of a factory definition or a product code request, with at least one PIU (135) being operable to transmit and receive a pre-configured data stream, in which the preconfigured data stream includes at least one data set, with at least one data set including at least one field for a unique identifier (UID); and in which at least one intelligent electronic device (IED) (145) is communicatively coupled to at least one PIU (135) and configured to: transmit and receive the preconfigured data stream from at least one PIU (135) ; map the preconfigured data stream to a user-defined source based on the UID; and transforming the data flow based on user-defined transformation factors to avoid configuration on at least one PIU (135).
    [2]
    2. SYSTEM, according to claim 1, characterized by the fact that: the at least one data set is defined using a preconfigured IED Description (IID) file associated with at least one PIU ( 135); the pre-configured data stream includes pre-configured sampled values, and the pre-configured sampled values include at least one of a current output directly measured from a current transformer (115) in secondary values or an output of voltage directly measured from a voltage transformer (120) at secondary values; the pre-configured data flow includes a Generic Object Oriented Substation Event (GOOSE), with GOOSE including at least one of a state and analogous information directly measured for at least one switching device; the preconfigured data stream is formatted based on at least one of an IEC 61850 format or an IEC 61869 format; and the UID is pre-configured using one of the factory settings or a product order code.
    [3]
    3. SYSTEM, according to claim 1, characterized by the fact that it additionally comprises: an Ethernet network (230) configured to transmit data between at least one PIU (135) and at least one IED (145), being that the at least one IED (145) is operable to be received from at least one PIU (135) in parallel; the preconfigured data flow through a point-to-point connection (240) between at least one PIU (135) and at least one IED (145); a second data stream through the Ethernet network (230); and wherein the at least one IED (145) is additionally operable to adjust a data quality in the pre-configured data stream using the second data stream based on a network failover mechanism.
    [4]
    4. SYSTEM, according to claim 3, characterized by the fact that the network failover mechanism includes: determining that at least one of the failure conditions is satisfied, with the failure conditions including: at least one frame in the pre-configured data flow is lost or delayed; a data quality in at least one frame in the pre-configured data stream is below a first threshold; a quality of time associated with the data in at least one frame in the pre-configured data stream is below a second threshold; and a health indicator associated with one of the behavior and mode of operation of the at least one PIU (135) is below a third threshold; in response to the determination, identify at least one redundant frame in the second data stream; determine that the quality of data in at least one redundant frame is above the first threshold and the quality of time in at least one redundant frame is above the second threshold; based on the determination, if the result is positive, use at least one redundant frame for processing; if the result of the determination is negative, determine a number from at least one frame in the preconfigured data stream for which the fault conditions are satisfied; if the number is below a tolerance threshold, label the at least one frame as having unsatisfactory quality and send the at least one frame for further processing; and if the number is above the tolerance threshold, issue at least one alarm.
    [5]
    5. METHOD (400) FOR A PROCESS BUS without configuration, the method (400) being characterized by the fact that it comprises: providing at least one process interface unit (PIU) (135), in which at least a PIU (135) includes at least one pre-configured communication port (225) defined by one of a factory definition or a product code order; transmitting and receiving, through at least one PIU (135), a preconfigured data stream, the preconfigured data stream including at least one data set, the at least one data set including at least at least one field for a unique identifier (UID) (145); and providing at least one intelligent electronic device (IED) (145) communicatively coupled to at least one PIU (135); receiving, through at least one IED (145), the preconfigured data flow from at least one PIU; map, through at least one IED (145), the pre-configured data flow to a user-defined source based on the UID; and transform, through at least one IED (145), the data flow preconfigured with the use of user-defined transformation factors to avoid configuration in at least one PIU (135).
    [6]
    6. METHOD, according to claim 5, characterized by the fact that: the at least one data set is defined using a preconfigured IED Description (IID) file associated with at least one PIU ( 135); the pre-configured data flow includes pre-configured sampled values, and the pre-configured sampled values include at least one of a current output directly measured from a current transformer (115) in secondary values or an output of voltage directly measured from a voltage transformer (120) at secondary values; and the preconfigured data flow includes a Generic Object Oriented Substation Event (GOOSE), with GOOSE including at least one of a state and analogous information directly measured for at least one switching device.
    [7]
    7. METHOD, according to claim 5, characterized by the fact that at least one IED (145) is operable to receive the pre-configured data flow through the point-to-point connection (240) between at least one IED (145) and at least one PIU (135).
    [8]
    8. METHOD according to claim 7, characterized by the fact that it further comprises: providing an operable Ethernet network (230) for transmitting data between at least one PIU (135) and at least one IED (145); receive, through at least one IED (145), a second data stream from at least one PIU (135) through the Ethernet network (230) in parallel to the preconfigured data stream received through the point-to-point connection (240); and wherein the at least one IED (145) is additionally operable to adjust the quality of data in the preconfigured data stream using the second data stream based on the execution of a network failover mechanism.
    [9]
    9. METHOD, according to claim 8, characterized by the fact that the network failover mechanism includes: determining that one of the failure conditions is satisfied: at least one frame in the preconfigured data stream is lost or delayed ; data quality in at least one frame in the pre-configured data stream is below a first threshold; quality of a time associated with data in at least one frame in the pre-configured data stream is below a second threshold; and a health indicator associated with one of the behavior and mode of operation of the at least one PIU (135) is below a third threshold; in response to detection, identify at least one redundant frame in the second data stream; determining that a quality of data in at least one redundant frame is above the first threshold and a quality of time in at least one redundant frame is above the second threshold; if the result of the determination is positive, use at least one redundant frame for processing; if the result of the determination is negative, determine the number of at least one frame in the first data stream for which the fault conditions are met; if the number is below a tolerance threshold, label the at least one frame as having unsatisfactory quality and send the at least one frame for processing; and if the number is above the tolerance threshold, issue at least one alarm.
    [10]
    10. SYSTEM FOR A PROCESS BUS without configuration, the system being characterized by the fact that it comprises: one or more electrical substation components that include at least one current transformer (CT) (115) and at least one power transformer tension (VT) (120); at least one process interface unit (PIU) (135) connected to at least one CT (115) and at least one VT (120), with at least one PIU (135) including at least one communication port preconfigured (225) defined by one of a factory definition and a product code order, in which at least one PIU (135) is operable to transmit and receive a data stream, the data stream including at least one data set defined using a pre-configured IED Instantiated Description (IID) file, in which at least one data set includes at least one field for: sampled values measured from one of the at least one CT (115) and at least one VT (120); a Generic Object Oriented Substation (GOOSE) Event, with GOOSE including at least one of a state and analogous information directly measured for at least one of the process transducers that include at least one switching device; and a unique identifier (UID) preconfigured by one of the factory definition or the product order code; at least one IED (145), the at least one IED (145) being communicatively coupled to at least one PIU (135); a network (230) operable to transmit the preconfigured data stream between at least one PIU (135) and at least one IED (145); and in which at least one IED (145) is operable to: transmit and receive the preconfigured data stream from at least one PIU (135) using a preconfigured point-to-point connection (240) ; receiving a second data stream from at least one PIU (135) using the network (230); adjust the pre-configured data flow using the second data flow; map the preconfigured data stream to a user-defined source based on the UID; and transforming the data flow based on user-defined transformation factors to avoid configuration on at least one PIU (135).
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    同族专利:
    公开号 | 公开日
    CA2973987A1|2018-01-28|
    US20180034689A1|2018-02-01|
    MX2017009757A|2018-09-10|
    JP2018023274A|2018-02-08|
    CN107666424A|2018-02-06|
    US10630541B2|2020-04-21|
    EP3276789B1|2021-05-19|
    EP3276789A1|2018-01-31|
    CN107666424B|2022-02-01|
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    法律状态:
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    US15/222,484|US10630541B2|2016-07-28|2016-07-28|Systems and methods for configuration-less process bus with architectural redundancy in digital substations|
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