• 专利附录
  • 专利说明
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    • 专利摘要:
    This control unit (1) of a circuit breaker comprises: - a security module (22), - programmable calculation modules (40, 41, 42, 43, 44), - a power supply management system ( 4) configured to switch, according to the level of electrical power received from power sources (10, 11, 12, 13) and according to a predefined power program, between: - a power mode active, in which the security module (22) and at least a part of the calculation modules (40, 41, 42, 43, 44) are powered, and - a security power supply mode, in which the security module (22) is powered and the computing modules (40, 41, 42, 44) are not powered.
    公开号:FR3055466A1
    申请号:FR1658006
    申请日:2016-08-29
    公开日:2018-03-02
    发明作者:Joel Sorin；Bertrand Masseboeuf；Yves Geay
    申请人:Schneider Electric Industries SAS；
    IPC主号:
    专利说明:

    ® FRENCH REPUBLIC
    NATIONAL INSTITUTE OF INDUSTRIAL PROPERTY © Publication number: 3,055,466 (to be used only for reproduction orders) (© National registration number: 16 58006
    COURBEVOIE © Int Cl 8 : H 01 H 71/74 (2017.01), H 02 H 3/02, H 02 J 9/06
    A1 PATENT APPLICATION
    ©) Date of filing: 08.29.16. © Applicant (s): SCHNEIDER ELECTRIC INDUS- (© Priority: TRIES SAS Simplified joint-stock company - FR. @ Inventor (s): SORIN JOËL, MASSEBOEUF BER- TRAND andGEAYYVES. (43) Date of public availability of the request: 02.03.18 Bulletin 18/09. ©) List of documents cited in the report preliminary research: Refer to end of present booklet (© References to other national documents ® Holder (s): SCHNEIDER ELECTRIC INDUSTRIES related: SAS Simplified joint-stock company. ©) Extension request (s): (© Agent (s): LAVOIX.
    FR 3 055 466 - A1
    CIRCUIT BREAKER CONTROL UNIT COMPRISING A POWER SUPPLY MANAGEMENT SYSTEM AND CIRCUIT BREAKER COMPRISING SUCH A UNIT.
    This control unit (1) of a circuit breaker comprises:
    - a security module (22),
    - programmable calculation modules (40, 41, 42, 43,
    44),
    - an electric power management system (4) configured to switch, according to the level of electric power received from electric power sources (10, 11, 12, 13) and according to a power program predefined, between:
    an active power supply mode, in which the security module (22) and at least part of the calculation modules (40, 41, 42, 43, 44) are supplied, and
    - A safety power supply mode, in which the safety module (22) is powered and the calculation modules (40, 41, 42, 44) are not powered.

    Circuit breaker control unit comprising an electrical power management system and circuit breaker comprising such a unit
    The invention relates to a circuit breaker control unit comprising a power supply management system.
    In the field of electrical protection, it is known to use control units to control the tripping of electrical circuit breakers. Such a control unit is typically provided with microcontrollers and microprocessors intended to perform functions of management of the circuit breaker with which the control unit is associated, for example to measure electrical quantities relating to the operation of the circuit breaker and to communicate these measurements to a dedicated collection point outside the unit.
    This control unit is provided with a power supply management system which, during its operation, is connected to sources of electrical power of a different nature. These power sources deliver an incoming electrical power which is used to electrically power the microcontrollers and microprocessors, so as to ensure their operation.
    The known control units have the disadvantage that they do not provide satisfactory management of the electrical supply from several electrical sources whose supply level can vary over time, for example when one or more multiple power sources are interrupted or removed. In particular, there is a risk that, in the event of the loss of one or more sources of electrical power, or in the event of an internal failure involving overconsumption, the control unit will no longer be sufficiently supplied with energy to perform functions circuit breaker protection. The control unit is then no longer able to switch the circuit breaker if an abnormal situation occurs, which is contrary to safety. In addition, the power management systems of the known units do not make it possible to ensure satisfactory control of the electrical consumption during the operation of the control unit.
    It is to these drawbacks that the invention more particularly intends to remedy by proposing a control unit for an electrical circuit breaker, which comprises an electrical power management system capable of managing separate electrical power sources, while ensuring that the control unit's security functions are ensured in the event of a change in the level of electrical power supplied by electrical power sources.
    The subject of the invention is therefore a control unit for a circuit breaker, said control unit being intended to be associated with an electric circuit breaker and to be electrically connected to input terminals of this circuit breaker and comprising:
    - a security module, containing an integrated circuit configured to issue a circuit breaker switching command when this security module detects an operating anomaly,
    - several programmable calculation modules, intended to provide circuit breaker management functions, when the unit is associated with the circuit breaker,
    an electrical power management system, comprising a connection interface intended to be connected to separate electrical power sources, to receive an incoming electrical power delivered by these power sources, this interface being electrically connected to the security and calculation modules to selectively redistribute the electrical power received to the security module and the calculation modules, the power management system being configured to switch automatically, according to the level of electric power received from the power sources. power supply and according to a predefined power program, between:
    - at least one active power supply mode, in which the security module and at least part of the calculation modules are electrically supplied with the incoming electrical power, and
    - a safety power supply mode, in which the safety module is supplied with incoming electrical power from the power sources and said calculation modules are isolated from the connection interface and are not supplied with power incoming electric.
    Thanks to the invention, when the power sources are no longer able to supply power to the control unit, the power management system supplies the security module as a priority to the detriment of the other modules. The reliability and security of the control unit is thus guaranteed.
    According to advantageous but not compulsory aspects of the invention, such a unit can incorporate one or more of the following characteristics, taken alone or in any technically admissible combination:
    - The power supply management system is configured to switch to the safety power supply mode when the electrical power received on the connection interface falls below a predefined minimum threshold, this predefined minimum threshold being fixed according to the electrical power consumed by the calculation modules.
    - The power management system includes:
    - an external power rail intended to be electrically connected to a first power source from among the power sources and being connected to the calculation modules so as to electrically supply the calculation modules,
    an internal power rail, adapted to be electrically connected to a second power source from among the electric power sources and being electrically connected to the security module to electrically power this security module,
    - a controllable switch, adapted to selectively connect or isolate the internal supply rail from the external supply rail according to the level of electrical power received by the internal and external supply rails.
    - The power management system also includes:
    - an electrical energy storage unit,
    - a common power rail, electrically connected to the storage unit, the power management system being configured to electrically connect the common power rail and the storage unit to the calculation modules when the electric power supplied by the other sources of electrical power becomes below a predefined threshold, so as to keep the calculation modules temporarily supplied by the storage unit.
    - The control unit further comprises a reset button, configured to generate a reset signal to at least one of the calculation modules when it is activated, the power management system being further configured to automatically disconnect the common power rail from the internal power rail and to discharge the storage unit when the reset button is pressed.
    - The power management system includes:
    - voltage detection units each intended to be associated with an electrical power source and being configured to emit an activation signal when this measurement unit detects that the corresponding power source generates an electrical voltage greater than or equal to a predetermined voltage value, and
    - logic gates arranged to trigger the switching between the safety power supply mode and at least one active power supply mode as a function of the signals emitted by the detection units.
    - The power management system is further configured to automatically switch from the safety power mode to an active power mode when the electrical power received on the connection interface becomes greater than the predefined minimum threshold.
    - The calculation modules each include a microprocessor or a programmable microcontroller.
    According to another aspect the invention relates to an electrical circuit breaker, comprising an associated control unit, the control unit being according to the invention and the circuit breaker comprising at least a second source of electrical power, connected to the connection interface and being connected to input terminals of the circuit breaker so as to be electrically supplied by the current flowing in the circuit breaker during the operation of the circuit breaker.
    The invention will be better understood and other advantages thereof will appear more clearly in the light of the description which follows, of an embodiment of a control unit given solely by way of example and made in reference to the accompanying drawings in which:
    - Figure 1 is a simplified block diagram of a control unit of a circuit breaker according to the invention;
    - Figure 2 is a simplified diagram of a power supply management system for the control unit of Figure 1;
    - Figure 3 is a flowchart of an operating method of the power management system of Figure 2.
    FIG. 1 represents a control unit 1 for an electrical circuit breaker 2. The unit 1 is here associated with the circuit breaker 2 to form an electrical assembly 3. More specifically, here, the circuit breaker 2 comprises the control unit 1.
    In known manner, the circuit breaker 2 has power input and output terminals which are selectively connected or electrically isolated from each other by movable contacts separable from the circuit breaker 2.
    For example, these power input and output terminals are intended to be electrically connected to an electrical circuit, or electrical network, so that the latter is protected by the circuit breaker 2.
    Unit 1 is intended to selectively control the opening of circuit breaker 2, i.e. the separation of the input and output terminals in the event of detection of an operating anomaly such as an overcurrent or a short circuit , in order to prevent the flow of electric current between these terminals.
    For example, the control unit 1 is also configured to measure physical quantities representative of the current flowing in the circuit breaker 2.
    To this end, the unit 1 comprises a security module 22 configured to issue a switching order for the circuit breaker 2 when this security module detects an operating anomaly, for example within the electrical network protected by the circuit breaker 2, such as '' an overcurrent or a short circuit.
    In this example, the security module 22 comprises an electronic circuit of the ASIC type, for "Application Specifies Integrated Circuit" in English.
    The control unit 1 also includes several programmable calculation modules, intended to provide management functions for the circuit breaker 2. For example, these calculation modules include a microprocessor or a programmable microcontroller. The calculation modules here provide so-called application functions, distinct from the security functions provided by the security module 22.
    In this example, the control unit 1 comprises the following calculation modules:
    a measurement module 40, called “monitoring and protection” in English, configured to measure electrical quantities relating to the electric currents and voltages present in the circuit breaker 2 during its operation, for example in order to calculate statistics of 'use ;
    - Application modules 41 and 42, adapted to manage high-level application functions, for example supervising data exchanges with an external communication bus;
    - a diagnostic module 43, called "trip cause indicator" in English, adapted to determine a cause for tripping of circuit breaker 2;
    - a communication module 44, called "display and wireless" in English, provided with a communication interface comprising a display screen 44 "and one or more radio-frequency communication interfaces 44". The display screen 44 ’includes backlight means which can operate in a low light intensity mode or in a high light intensity mode.
    These calculation modules 40, 41, 42, 43 and 44 require an electrical supply to operate.
    Optionally, the unit 1 also comprises a contactless type wireless communication module 45, for example of NFC technology for "Near Field Communication", suitable for transmitting information contained in the diagnostic module 43 to a reader additional data outside unit 1.
    The control unit 1 further comprises an electrical power management system 4 which is provided with a connection interface 5 intended to be selectively connected to electrical power sources 10, 11, 12, and 13 in order to receive an incoming electrical power delivered by these power sources.
    To this end, the interface 5 is electrically connected to the security module 22 and to the calculation modules 40, 41, 42, 43, 44 and 45 to selectively redistribute the electrical power received to them.
    The power sources can be disconnected from the interface 5, or can stop working during the operation of the unit 1, as planned or not. Power sources can also be added to the interface 5 or even start during the operation of the unit 1. The sources 10, 11, 12 and 13 are here illustrated connected to the connection interface 5 but, in practice , it is possible that only one or more of these sources is connected and provides electrical power at a given time.
    In this example, the source 10 is an auxiliary power source, adapted to deliver a direct voltage of 24 Volts. This source is for example supplied from an inverter or a secure supply external to the electrical assembly 1.
    The source 11 here represents a power supply supplied by an external computer equipment connected to the unit 1 by means of a USB communication port, for "Universal Serial Bus" in English. The source 11 is adapted to deliver a DC voltage of 5 Volts.
    The source 12 is here at least one current transformer arranged around a power conductor of the circuit breaker 2 to deliver an electric voltage as long as an electric current flows in the circuit breaker 2. Thus, the source 12 can stop working when the circuit breaker 2 is in an open state.
    The source 13 here comprises a voltage transformer, connected to the terminals of the circuit breaker 2 to deliver an electrical voltage as long as an electrical voltage is present on the terminals. For example, the source 13 is partly integrated within the unit 1 and can be removed therefrom and then ceases to function.
    Finally, the unit 1 is here adapted to be connected to an additional energy source 14 of the battery type, for example rechargeable. This source 14 can be omitted.
    Sources 10 and 11 here belong to a first group of power sources, called sources external to circuit breaker 2.
    Sources 12 and 13 here belong to a second group of power sources, distinct from the first group, called group of sources internal to circuit breaker 2.
    The sources 12 and 13 are here always present within the circuit breaker 2, even if they may, in whole or in part, stop supplying electrical power to the unit 1 during the operation of the circuit breaker 2.
    On the contrary, sources 10 and 11 can be disconnected from unit 1 during its operation.
    The management system 4 is configured to automatically switch between several distinct power modes, according to the level of electrical power received from the power sources 10, 11, 12 and 13 and the battery 14 and according to a program preset feed. This switching allows the consumption of unit 1 to be adapted according to the incoming electrical power.
    In particular, the management system 4 is configured to selectively switch between a safety supply mode MO and at least one active supply mode, here four in number and denoted M1, M2, M3 and M4.
    In the safety power supply mode MO, the safety module 22 is supplied with the incoming electrical power from the power source or sources which are active, that is to say which supply electrical power over the 'connection interface 5. Said calculation modules 40, 41, 42, 44 are isolated from the connection interface 5 and are not supplied with incoming electrical power.
    In each of the active power supply modes M1, M2, M3 and M4, the security module 22 and at least part of the calculation modules 40, 41, 42, 43, 44 are electrically supplied with the incoming electrical power.
    The power management system 4 is notably configured to switch to the safety power supply mode MO when the electrical power received on the connection interface 5 becomes less than a predefined minimum threshold, this predefined minimum threshold being fixed as a function of the electrical power consumed by the calculation modules 40, 41, 42, 44 as well as the display screen 44 ′ and the radiofrequency communication interface (s) 44 ”.
    The power management system 4 is further configured to automatically switch from the safety power supply mode MO to one of the active power supply modes M1, M2, M3, M4 when the electrical power received on the connection interface 5 becomes greater than the predefined minimum threshold.
    Thus, the safety functions of the circuit breaker 2 are provided by the control unit 1 in the event of a change in the level of electrical power supplied by the electrical power sources 10, 11, 12 and 13.
    More generally, the power management system 4 is configured to switch from an active power mode M1, M2, M3, M4 to another active power mode M1, M2, M3, M4 according to the value of electrical power received crosses predetermined transition values.
    By way of illustration, the power supply mode MO here corresponds to the case where only the source 12 is active and provides a first level of electrical power. For example, the source 12 provides an incoming electrical power of 0.42 W with a current of 20 mA. In this mode, the module 22 is powered. The calculation modules are not supplied electrically from interface 5.
    The mode M1 here corresponds to the case where only the source 12 is active and provides a second level of incoming electrical power, greater than the first power level. For example, the source 12 provides an incoming power of 2.2W with a current of 105mA. In this mode M1, the module 22 as well as the calculation modules 40, 42 and 43 are activated and the module 44 is partially activated, for example with the backlighting means of the display screen 44 'operating in low light intensity mode.
    The M2 mode here corresponds to the case where the source 13 is active. For example, the incoming electrical power is 2.6W. Compared to the M1 power supply mode, the same modules are activated. Only the nature of the power source is changed.
    The mode M3 here corresponds to the case where the source 11 is active. Compared with the power supply mode M2, the calculation module 44 is fully electrically powered, for example to allow the backlighting means of the display screen 44 ’to operate in maximum light intensity mode.
    Finally, the M4 mode here corresponds to the case where the source 10 is active. Compared to the power supply mode M3, the calculation module 41 is here entirely electrically supplied, for example to allow the execution of additional functions.
    In addition, the system 4 here includes, by way of illustration, additional electrical supply modes M5 and M6. These modes M5 and M6 are not managed here by the power management system 4 and can be omitted.
    M5 denotes a power supply mode corresponding to the supply of the diagnostic module 43 by the battery 14. This makes it possible to provide a backup mode of its power supply independently of the power supply mode MO.
    We denote M6 a mode in which the incoming power is zero, that is to say that unit 1 is not in operation. This mode M6 corresponds to the operation of the wireless communication module 45, the latter being able to operate only thanks to an electric power supplied by a radio frequency data reader.
    The active supply modes M1, M2, M3 and M4 are preferably defined beforehand or dynamically, on the basis of the knowledge of the electrical power levels capable of being supplied by each of the supply sources and of the electrical consumption of each of the calculation modules. In other words, each power mode M1, M2, M3 and M4 is associated with a specific combination of power sources among the power sources 10, 11, 12 and 13 providing a given electrical power. For each supply mode M1, M2, M3 and M4, only the calculation modules which can be supplied with this electrical power are intended to be operated in this supply mode.
    Thus, the number and the nature of the power supply modes depend on the calculation modules and the power sources which are intended to be received on the interface 5 and can therefore be different.
    This arrangement ensures satisfactory control of the electrical consumption during the operation of the control unit 1.
    As illustrated in FIG. 2, the power management system 4 here comprises an external Veps power rail and an internal Vmitop power rail.
    In FIG. 2, the various elements of the management system 4 are represented in a simplified manner in the form of blocks linked together by lines. The thick lines symbolize electrical power connections, while the thin lines symbolize data links. For example, the data link is an electrical signal that can take two values, each associated with a logic state. Here, a DC voltage of 3.3 volts corresponds to an active state while a zero voltage corresponds to an inactive state.
    The external power rail Veps is intended to be electrically connected to the power sources 10 and / or 11 and is electrically connected to the calculation modules 40, 42, and 44 so as to supply them electrically when the sources 10 and / or 11 are active. These calculation modules are either connected directly to the Veps rail, or connected via a controllable switch.
    Here, the module 41 is directly connected to the interface 5 to be supplied directly by the source 10 without passing through the Veps rail. In this way, this module 41 is only able to be electrically supplied when the source 10 is present.
    The way in which the power modules are connected, either directly to the source 10 and / or 11 or via the Veps power rail depends on how the active power modes M1, M2 are defined, M3 and M4.
    The internal power rail Vmitop is adapted to be electrically connected to the power sources 12, 13 and is electrically connected to the security module 22 to electrically power this security module 22.
    The Vmitop and Veps power rails are here part of the connection interface 5.
    The system 4 here comprises a power converter 50 and a controllable switch 81 for connecting the Veps power rail to the Vmitop power rail.
    The controllable switch 81 is suitable for selectively connecting or isolating the internal supply rail Vmitop from the external supply rail Veps according to the level of electrical power received by the internal and external supply rails.
    For example, switch 81 is a MOSFET type power transistor.
    Here, the switch 81 is by default in a blocking state and only switches to a passing state when it receives an FPDETECT signal on a control electrode.
    In this example, since the source 12 has greater reliability, due to its positioning within the circuit breaker 2 and the fact that it remains energized as long as the circuit breaker 2 remains in operation in the closed state, this is that -which primarily supplies the module 22 when the other sources 10, 11 and / or 13 stop working.
    Thus, the transition to the MO mode is notably carried out by disconnecting the Veps power rail from the Vmitop power rail when the sources 10 and 11 cease to operate, so that the electrical power supplied by the source 12 doesn’t not supply the calculation modules, here 40, 41, 42 and 44.
    The management system 4 here comprises detection units associated with sources of electrical power to the connection interface 5. Each detection unit is adapted to detect that the electrical source with which it is associated is active. For example, each detection unit measures the voltage supplied by the source with which it is associated and emits a detection signal when this voltage is greater than a predetermined voltage value, for example the nominal voltage value of this voltage source.
    We note 20, 21 and 23 of the measurement units respectively associated with sources 10, 11 and 13. We also note VAUX_DETECT, USBDETECT and VPS_DETECT the respective signals of the measurement units 20, 21 and 23.
    The system 4 also includes logic gates, arranged to trigger the switching between the safety supply mode MO and the supply modes M1, M2, M3 and M4 according to the signals emitted by the detection units, in particular by controlling switch 81.
    The use of logic gates to ensure the passage between the power supply modes allows faster operation of the management system 4 than using a dedicated microprocessor.
    In this example, system 4 includes:
    - a logic gate 90 of type "OR" which receives as input the signals VAUX_DETECT and USB DETECT and provides an output with a signal EPS_MGT;
    - a logic gate 91 "OR" which receives the signals EPS_MGT and VPS_DETECT to form the output of the signal FPDETECT which controls the switch 81.
    As long as sources 10 and 11 are active, the FP DETECT signal is emitted, and keeps switch 81 in the on state. As soon as one of the sources 10 and / or 11 is interrupted, the FP DETECT signal ceases to be emitted and the switch goes into the blocking state.
    Advantageously, the power management system 4 further comprises a storage unit 70 of electrical energy, such as a capacitor, and a common supply rail Vint, electrically connected to the storage unit 70.
    The power management system 4 is configured to electrically connect the common power rail Vint and the storage unit 70 to the calculation modules when the electric power supplied by the second electric power sources falls below a predefined threshold. , so as to keep the calculation modules temporarily supplied by the storage unit 70.
    This makes it possible to supply these calculation modules, when the incoming power becomes insufficient to keep them in operation, enough energy so that they have the time to save the data being processed and to shut down normally ^
    Here, the storage unit 70 is connected between an electrical ground of the management system 4 and the Vint power rail.
    A controllable switch 85 is adapted to selectively connect or isolate the common supply rail Vint from the external supply rail Veps as a function of the level of electrical power received by the internal and external supply rails. Here, the switch 85 is by default in a passing state and only switches to a blocking state when it receives the signal EPS_MGT on a control electrode.
    The Vint power rail is also electrically connected to the power converter 50 via a power link comprising a protection group 52 provided with a diode, so as to recharge the storage unit 70 when the system 4 is in a power state with a sufficiently high incoming power.
    The system 4 is also provided with a detection unit 24, similar to the detection units 20, 21 or 23, here associated with the common supply rail Vint and adapted to supply a PWRBKUP signal when the supply rail Vint is supplied . This PWR BK UP signal makes it possible to control the extinction of the calculation modules before the reserve of energy stored in the storage unit 70 runs out.
    In this example, modules 40 and 42 are directly connected to the Veps power rail. Unit 44 is connected to the Veps rail via a controllable switch 80 similar to switch 81 and controlled by an ENDW signal.
    The signals VAUX_DETECT, USBDETECT and VPS_DETECT are supplied on data inputs of the module 40. In response, when it is supplied, the latter calculates signals ENDWFP and ENDWLP which are indicative of the supply state.
    The signal EN DW is thus calculated by means of:
    - a logic gate 92 of the “AND” type, which receives the FPDETECT and EN_DW_LP signals as input,
    - a logic gate 93 of "OR" type, which receives the signal EN DW LP as input and the output of logic gate 92,
    - a logic gate 94 of type "AND", which receives as input a PWR BK UP signal and the output of logic gate 93, and which outputs the signal EN DW.
    Furthermore, advantageously the control unit 1 comprises a reset button 60, configured to generate, when activated, a reset signal HW RESET M0 intended for at least one of the calculation modules, here of the calculation 43. Furthermore, for the reset to be effective, the power source 10 must first be disconnected or neutralized. Finally, it is not necessary to disconnect or neutralize the sources 10, 11, 12, 13 and 14 to make the reset effective by activating the reset button 60.
    The power management system 4 is further configured to automatically disconnect the common power rail Vint from the internal power rail Vmitop and to discharge the storage unit 70 when the reset button 60 is activated.
    Here, for this purpose, the system 4 comprises a controllable switch 82, selectively connecting the Vint and Vmitop power rails, as well as a controllable switch 83 directly connecting the storage unit 70 to the Vmitop power rail. The switches 82 and 83 are similar to the switch 81 and are by default in their blocking state.
    The management system 4 also comprises a logic gate 95 of the “AND” type, which receives as input a signal / RESETVINT generated by the button 60 when it is activated and an AUTOMI signal generated by the module 22, a logic gate 97 "NOT" which receives the signal / RESET VINT as an input, and a logic gate 96 of the "NOR" type with three inputs, which receives as input a signal / FETGATEV generated by the module 22, the signal output by the logic gate 97, and the signal output by the logic gate 95. The switch 82 is controlled by the output signal from the logic gate 95 while the switch 83 is controlled by the output signal from the logic gate 96. Thus , when the reset button 60 is activated, the switches 82 and 83 are blocked. The modules 40, 42 and 44 are then deprived of power and are reset. In this example, the operation of the module 43 is ensured independently by the source 14. The source 14 is not here intended to supply the security module 22, whatever the mode of supply.
    The system 4 thus comprises an additional supply rail Vbu connected to a supply input of the module 43. The system 4 also comprises and a power converter 51 adapted to supply the supply rail Vbu from the internal supply rail Vmitop. The source 14 is connected to the supply rail Vbat by a controllable switch 84 controlled by the power converter 51. More specifically, the switch 84 isolates the supply bus Vbu from the source 14 as long as the supply is ensured by the internal supply rail Vmitop, here by means of a PWRGOOD signal, and switches to a on state when the supply rail Vbat is no longer supplied by the supply rail Vmitop.
    FIG. 3 represents an example of operation of the management system 4.
    Initially, during a step 100, the unit 1 is in a normal operating state, associated with the circuit breaker 2 and is in a first power supply mode. For example, the electrical power sources 10, 11, 12 and 13 are connected to the connection interface 5 and deliver non-zero incoming electrical power to this connection interface 5, so that the unit 1 is in the feeding mode M4.
    Then, during a step 102, the value of incoming electrical power decreases, for example because one of the electrical power sources 10, 11, 12 and 13 stops working and / or is withdrawn. In this example, the power sources 10, 11 and 13 stop working. The incoming electrical power falls below the predefined minimum threshold.
    Then, during a step 104, the management system 4 automatically controls the switching to the power level MO. Here, as soon as power supplies 10, 11 and
    13 cease to function, the detection units 20, 21 and 23 interrupt the transmission of the signals, respectively, VAUX_DETECT, USBDETECT and VPS_DETECT.
    Consequently, the FPDETECT signal is interrupted and the switch 81 goes into the blocking state, interrupting the power supply to the Veps power rail and isolating it from the connection interface 5 to which the source is still connected. 12.
    Unit 1 is then in the MO power state.
    In this way, the security module 22 continues to be electrically powered by the source 12, while the modules 40, 41, 42 and 44 are no longer electrically powered by this source 12. This prevents the operation of the security module 22 is not interrupted.
    The embodiments and variants envisaged above can be combined with one another to generate new embodiments.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    1. - Control unit (1) of a circuit breaker, said control unit being intended to be associated with an electric circuit breaker (2) and to be electrically connected to input terminals of this circuit breaker and comprising:
    - a security module (22), containing an integrated circuit configured to issue a circuit breaker switching command when this security module detects an operating anomaly,
    - several programmable calculation modules (40, 41, 42, 43, 44), intended to provide circuit breaker management functions, when the unit is associated with the circuit breaker,
    - an electrical power management system (4), comprising a connection interface (5) intended to be connected to separate electrical power sources (10, 11, 12, 13), to receive an incoming electrical power delivered by these power sources, this interface being electrically connected to the security module (22) and to the calculation modules (40, 41, 42, 44) in order to selectively redistribute the electrical power received towards the security module (22) and the calculation modules (40, 41, 42, 44), the control unit (1) being characterized in that the power management system (4) is configured to switch automatically, according to the level of electrical power received from the electrical power sources (10, 11, 12, 13) and according to a predefined power program, between:
    - at least one active power supply mode (M1, M2, M3 M4), in which the security module (22) and at least part of the calculation modules (40, 41,42, 43, 44) are electrically powered with the incoming electrical power, and
    a safety power supply mode (MO), in which the safety module (22) is supplied with the incoming electrical power from the power sources (12, 13) and said calculation modules (40, 41, 42, 44) are isolated from the connection interface and are not supplied with incoming electrical power.
    [2" id="c-fr-0002]
    2, - Control unit according to claim 1, characterized in that the power supply management system (4) is configured to switch to the safety power supply mode (MO) when the electrical power received on the interface connection (5) becomes lower than a predefined minimum threshold, this predefined minimum threshold being fixed as a function of the electrical power consumed by the calculation modules (40,41,42,43, 44).
    [3" id="c-fr-0003]
    3.- Control unit according to claim 1 or 2, characterized in that the power management device (1) comprises:
    - an external power rail (Veps) intended to be electrically connected to a first power source (10, 11) among the power sources and being connected to the calculation modules (40, 42, 44) so electrically supply the calculation modules,
    - an internal power rail (Vmitop), adapted to be electrically connected to a second power source (12, 13) among the electric power sources and being electrically connected to the security module (22) to electrically power this security module (22),
    - a controllable switch (81), adapted to selectively connect or isolate the internal supply rail (Vmitop) from the external supply rail (Veps) according to the level of electrical power received by the internal and external supply rails.
    [4" id="c-fr-0004]
    4, - Control unit according to one of the preceding claims, characterized in that the power management system (4) further comprises:
    - a storage unit (70) of electrical energy,
    - a common power rail (Vint), electrically connected to the storage unit (70), the power management system (4) being configured to electrically connect the common power rail and the storage unit ( 70) to the calculation modules when the electric power supplied by the second power supply sources falls below a predefined threshold, so as to keep the calculation modules temporarily supplied by the storage unit (70).
    [5" id="c-fr-0005]
    5. - control unit according to claim 4, characterized in that it further comprises a reset button (60), configured to generate a reset signal to at least one of the calculation modules (43) when '' it is activated, the power management system being further configured to automatically disconnect the common power rail (Vint) from the internal power rail (Vmitop) and to discharge the storage unit (70) when the reset button is activated.
    [6" id="c-fr-0006]
    6. - Control unit according to one of the preceding claims, characterized in that the power management system (4) comprises:
    - voltage detection units (20, 21, 23) each intended to be associated with an electrical power source (10, 11, 13) and being configured to emit an activation signal when this measurement unit detects that the corresponding power source generates an electrical voltage greater than or equal to a predetermined voltage value, and
    - logic gates (90, 91, 92, 93, 94, 95, 96, 97) arranged to trigger the switching between the safety supply mode and the at least one active supply mode as a function of the signals emitted by detection units.
    [7" id="c-fr-0007]
    7. - control unit according to one of the preceding claims, characterized in that the power management system (4) is further configured to switch automatically from the safety power supply mode (MO) to a mode d active supply (M1, M2, M3, M4) when the electrical power received on the connection interface (5) becomes greater than the predefined minimum threshold.
    [8" id="c-fr-0008]
    8. - Control unit according to one of the preceding claims, characterized in that the calculation modules (40, 41,42, 43, 44) each comprise a microprocessor or a programmable microcontroller.
    [9" id="c-fr-0009]
    9. -Electrical circuit breaker (2), comprising an associated control unit (1), characterized in that the control unit is according to any one of the preceding claims, and in that the circuit breaker (2) comprises at least a second electrical power source (12, 13), connected to the connection interface (5) and being connected to input terminals of the circuit breaker so as to be supplied electrically by the current flowing in the circuit breaker during circuit breaker operation.
    1/3
    [0010]
    -10- -11- -12- -13- η, -14-
    3/3
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    同族专利:
    公开号 | 公开日
    EP3291398B1|2021-11-17|
    US20180062380A1|2018-03-01|
    FR3055466B1|2018-09-21|
    BR102017017473A2|2018-03-20|
    EP3291398A1|2018-03-07|
    AU2017219124A1|2018-03-15|
    CN107785864B|2021-10-12|
    US10686312B2|2020-06-16|
    CN107785864A|2018-03-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20100321837A1|2008-01-14|2010-12-23|Matteo Caiti|Electronic protection unit for automatic circuit breakers and relative process|
    US20120126625A1|2010-10-15|2012-05-24|Maher Gregory A|Power management with over voltage protection|
    JP3711559B2|2003-08-08|2005-11-02|オムロン株式会社|Information processing apparatus and method, recording medium, and program|
    US7626798B2|2008-01-24|2009-12-01|Honeywell International Inc.|Electronic load control unit used as bus tie breaker in electrical power distribution systems|CN109117627B|2018-07-16|2020-11-20|中国南方电网有限责任公司超高压输电公司检修试验中心|System and method for verifying protection function of final circuit breaker in direct current engineering|
    DE102018213531A1|2018-08-10|2020-02-13|Siemens Aktiengesellschaft|Low voltage circuit breakers and procedures|
    US11271383B2|2019-12-17|2022-03-08|Schneider Electric USA, Inc.|Auto wire-size detection in branch circuit breakers|
    法律状态:
    2017-08-29| PLFP| Fee payment|Year of fee payment: 2 |
    2018-03-02| PLSC| Publication of the preliminary search report|Effective date: 20180302 |
    2018-07-30| PLFP| Fee payment|Year of fee payment: 3 |
    2019-07-26| PLFP| Fee payment|Year of fee payment: 4 |
    2020-08-24| PLFP| Fee payment|Year of fee payment: 5 |
    2021-08-26| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1658006|2016-08-29|
    FR1658006A|FR3055466B1|2016-08-29|2016-08-29|CONTROL UNIT FOR A CIRCUIT BREAKER COMPRISING AN ELECTRIC POWER SUPPLY MANAGEMENT SYSTEM AND CIRCUIT BREAKER COMPRISING SUCH A UNIT|FR1658006A| FR3055466B1|2016-08-29|2016-08-29|CONTROL UNIT FOR A CIRCUIT BREAKER COMPRISING AN ELECTRIC POWER SUPPLY MANAGEMENT SYSTEM AND CIRCUIT BREAKER COMPRISING SUCH A UNIT|
    US15/673,522| US10686312B2|2016-08-29|2017-08-10|Monitoring unit for monitoring a circuit breaker comprising an electrical power supply management system and circuit breaker comprising such a unit|
    BR102017017473-5A| BR102017017473A2|2016-08-29|2017-08-15|MONITORING UNIT TO MONITOR A CIRCUIT BREAKER UNDERSTANDING AN ELECTRIC POWER SUPPLY MANAGEMENT SYSTEM AND A CIRCUIT BREAKER UNDER SUCH UNIT|
    CN201710753222.4A| CN107785864B|2016-08-29|2017-08-28|Monitoring unit for monitoring a circuit breaker and circuit breaker comprising such a unit|
    AU2017219124A| AU2017219124A1|2016-08-29|2017-08-28|Monitoring unit for monitoring a circuit breaker comprising an electrical power supply management system and circuit breaker comprising such a unit|
    EP17188072.7A| EP3291398B1|2016-08-29|2017-08-28|Control unit of a circuit breaker comprising a power supply management system and circuit breaker comprising such a unit|
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