• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A power transmission system (1) for transmitting electric power (P) from a power source (2A) to a power sink (4A) connected to the power source (2A) through a power transfer cable (3), the power source (2A) having a first pole with a first electrical potential which is connected via parallel current lines of a first line pair of the power transfer cable (3) to a first pole of the power sink (4A), and a second pole having a second electrical potential, which via further parallel power lines of a second line pair of Power transfer cable (3) is connected to a second pole of the power sink (4A), wherein during the power transmission via the power lines, a payload signal between the power source (2A) and the power sink (4A) over at least one pair of lines with power lines of the same electrical potential unaffected by the power transfer is transferable.
    公开号:AT516644A1
    申请号:T934/2014
    申请日:2014-12-29
    公开日:2016-07-15
    发明作者:
    申请人:Fronius Int Gmbh；
    IPC主号:
    专利说明:

    Power transmission system
    The invention relates to a power transmission system, in particular a welding system, for power transmission of electrical power from a power source to a power sink via a power transfer cable, wherein a payload signal is transferable during the power transfer, and a method for user data transmission via a power transfer cable.
    In many applications, electrical power is transferred from a power source to a power sink. A power source, such as a power source, generates electrical power that is transmitted through a power transfer cable to a power sink, such as an electrical load. In an electrical welding system, a welding machine has a welding power source that provides an electrical welding current to a welding torch, the welding current being transferred via power lines of a power transfer cable from the welding machine to the welding torch.
    WO 2012/058164 describes a welding system having a connection for obtaining welding power from a welding power source via a cable, wherein a control signal connection is provided to exchange welding operation data with the welding power source via a signal cable. The welding system further includes a wire feed link arranged to send welding power from the welding power source to a wire feed and to exchange welding operation control data to the wire feed via a wire feed cable. A communication circuit is configured to combine the welding power of the welding power source and data from the power supply for the wire feed connection, as well as to separate data from the wire feed connection for communication to the control signal connection.
    From US 7381922 B2, a welding system is known, in which a data transmission between a wire feed unit and a power source of a welding device via a welding cable. Data is transmitted serially via the welding cable. In such a conventional welding system, however, the data transmission does not occur during the transmission of the electric power, i. during welding, but during certain time intervals during which no electrical welding current is transmitted to the welding torch via the cable. This welding system thus has the disadvantage that no data transmission between the welding device and the welding torch, in particular its wire feed unit, can take place during the welding process. Accordingly, in this conventional welding system, no welding parameters or the like can be set on the welding torch during the welding operation, or the welding machine can not receive data on the welding operation from the welding torch.
    It is therefore an object of the present invention to provide a power transmission system for power transmission of electric power from a power source to a power sink in which a payload signal between the power source and the power sink can be reliably transmitted during power transmission.
    This object is achieved by a power transmission system having the features specified in claim 1.
    The invention accordingly provides a power transmission system for power transmission of electric power from a power source to a power sink connected to a power source via a power transfer cable, the power source and power sink each having a first pole having a first electrical potential and a second pole having a second electrical potential, wherein the poles are connected via parallel power lines of a first line pair and a second line pair of the power transfer cable, wherein during the power transmission, a Nutzdatensignal between the power source and the power sink via at least one line pair with power lines of the same electrical potential is unaffected by the power transfer.
    The power transmission system according to the invention offers the advantage that a payload signal can be transmitted during the power transfer via the same power transfer cable unaffected by the power transmission between a power source and a power sink. In this way, a controller of a device including the power source, during power transmission to another device including the power sink, simultaneously transfer control data to the second device during the power transfer, and further simultaneously receive, for example, sensor data from the second device via the power transfer cable. This has the advantage that process parameters, in particular parameters of a welding process can be transmitted during the power transfer, so that the quality of the welded product can be increased. At the same time, the control of the welding device during the welding process, for example, receive sensor data and thus react quickly to changes during the welding process or in the welding environment. This also increases the quality of the product created in the welding process.
    In one possible embodiment of the power transmission system according to the invention, the device, which includes the power source, and the device, which includes the power sink, each one connected to the power lines of a pair of wires of the power transfer cable nes or switchable Nutzdatenmodem for transmitting the payload data signal.
    This payload data modem is preferably provided for transmitting and / or receiving a payload data signal in a predetermined payload data frequency band.
    In one possible embodiment, the payload data frequency band for the payload data signal transmitted via the power lines of the same electrical potential lies in a frequency range from 2 MHz to 30 MHz.
    In one possible embodiment of the power transmission system according to the invention, this useful data frequency band is predetermined. In another possible embodiment, the payload data band is divided into different frequency band ranges which are selectively selectable for transmission of the payload signal during power transfer.
    In another possible embodiment of the power transmission system according to the invention, the first pole of the power source having a first electrical potential is connected to a first power line of the power transfer cable and to a second power line of the power transfer cable via a first fork located at a first end of the power transfer cable connected to the first pole of the power sink via a second fork point provided at a second end of the power transfer cable; and wherein the second pole of the power source having a second electrical potential is connected to a third power line via a third fork point provided at the first end of the cable the power transfer cable and is connected to a fourth power line of the power transfer cable, both via a present at the second end of the power transfer cable fourth fork point with the second Po l the power sink are connected.
    In one possible embodiment of the power transmission system according to the invention, a throttle for decoupling is provided at the two ends of the power transfer cable.
    In a further possible embodiment of the power transmission system according to the invention, the throttles provided at the two ends of the power transfer cable are in each case current-compensated throttles.
    In a further possible embodiment of the power transmission system according to the invention, the power lines of the power transfer cable are designed such that they can transmit an electrical power of at least one 1 KW.
    In a further possible embodiment of the power transmission system according to the invention, the power source is a welding power source of a welding device, which transmits a welding current via the power lines of the power transfer cable to a welding torch as a power sink. Wire feeder with attached welding torch - use in place of welding torch
    In a further possible embodiment of the power transmission system according to the invention, a control unit is provided, which is connected to a user data modem for transmitting a useful data signal.
    In a further possible alternative embodiment of the power transmission system according to the invention, the power source has at least one connection component such as a rapid shutdown box, a string collector, a string controller, etc. a photovoltaic system which is connected to at least one photovoltaic module, and the electrical power via the power lines of the power transfer cable DC power to an inverter of the photovoltaic system transmits.
    In a further possible alternative embodiment of the power transmission system according to the invention, the power source has a charger which transmits a charging current to a rechargeable accumulator as a power sink via the power lines of the power transfer cable.
    The invention further provides, according to a further aspect, a method for transmitting a useful data signal having the features specified in claim 12.
    The invention accordingly provides a method of transmitting a payload signal between a first device having a power source and a second device having a power sink, the two devices being connected to the power source of the first device via a power transfer cable for power transferring electrical power Power sink of the second device are connected to each other, wherein the Nutzdatensignal via parallel power lines of the power transfer cable, which have a same electrical potential, unaffected by a simultaneously performed power transfer is transmitted.
    In one possible embodiment of the method according to the invention, the useful data signal is transmitted in a predetermined useful data frequency band from 2 to 30 MHz.
    In a further possible embodiment of the method according to the invention, the useful data signal is transmitted unidirectionally or bidirectionally via at least two parallel power lines of the power transfer cable, which have the same electrical potential, during the power transfer.
    The invention further provides, in another aspect, a power transfer cable for transferring electrical power having the features set forth in claim 15.
    The invention accordingly provides a power transfer cable for transferring electrical power from a power source, in particular a welding power source, to a power sink, in particular a welding torch, wherein the power transfer cable has at least two pairs of lines each having two parallel power lines, the two parallel power lines of each pair of lines in the power transfer have the same electrical potential and are electrically connected to each other at both ends of the power transfer cable, wherein at least one pair of lines at both ends of the power transfer cable each have a payload connection for connecting a Nutzdatenmodems is provided for transmitting and / or receiving one of the two power lines of the line pair transmitted payload signal is suitable.
    In the following, possible embodiments of the power transmission system according to the invention and the method according to the invention for transmitting useful data between a power source and a power sink will be explained in more detail with reference to the attached figures.
    Show it:
    Fig. 1 is a block diagram illustrating a
    Embodiment of a power transmission system according to the invention;
    Fig. 2 is a circuit diagram illustrating a
    Embodiment of the power transmission system according to the invention;
    Fig. 3 is another circuit diagram for the presen- tation of another embodiment of a power transmission system according to the invention;
    4 is a circuit diagram showing another embodiment of a power transmission system according to the present invention;
    Figures 5, 6, 7 different applications of a power transmission system according to the invention;
    As can be seen in Fig. 1, a power transmission system 1 for power transmission of an electric power P in the illustrated embodiment comprises a first apparatus 2 having a power source 2A integrated therein, via a power transfer cable 3 having a power sink 4A within a second apparatus 4 of the power transmission system 1 is connected. In the case of the first device 2, one possible embodiment is a welding device which has a welding current source 2A as the power source LQ. This welding power source 2A transmits a welding electric current to a wire feeder 4A as a power sink LS. At the wire feeder 4A, a welding torch is connected to perform a welding process. The wire feeder 4A preferably has a control unit 4B. The controller 4B of the second device 4 is connected to a payload data modem 4C for transmitting and / or receiving a payload signal, as shown in FIG. The first device 2, for example a welding device, also has an internal control 2B, which is connected to a user data modem 2C of the first device 2. The two user data modems 2C, 4C of the two devices 2, 4 interconnected via the power transfer cable 3 can transmit or receive a useful data signal in a predetermined user data frequency band. As indicated in Fig. 1, the power transfer cable (LTK) 3 of the power transmission system 1 according to the invention has two pairs of lines, each with two parallel power lines, i. a total of four power lines 3-1, 3-2, 3-3, 3-4. The first two power lines 3-1, 3-2 form a first line pair and the two remaining power lines 3-3, 3-4 form a second line pair. The power source 2A has a first electrical pole with a first electrical potential, which is connected via the two parallel power lines 3-1, 3-2 of the first line pair within the power transfer cable 3 to a first pole of the remote power sink 4A of the second device 4. The power source 2A further has a second electrical pole with a second electrical potential, which is connected via the two further parallel power lines 3-3, 3-4 of the second line pair within the power transfer cable 3 to a second pole of the remote power sink 4A. In the power transmission system 1, during the power transmission of the electric power P from the power source 2A to the power sink 4A simultaneously using the two Nutzdatenmodems 2C, 4C a Nutzdatensignal between the two devices 2, 4 via at least one line pair with power lines of the same electrical potential unaffected by the power transfer be transmitted. The data transmission is essentially independent of the length of the power transmission system 1, which may amount to some 10m, for example in shipbuilding.
    In the exemplary embodiment illustrated in FIG. 1, the useful data signal is transmitted between the first and the second device 2, 4 via the power lines 3-1, 3-2, which are both at the first electrical potential. The supply of the useful data signal to poles of the same potential avoids the interference of the common mode. In one possible embodiment, the transmission of the user data takes place in a predetermined user data frequency band, which lies in a frequency range from 2 MHz to 30 MHz. In one possible embodiment, the payload data band is subdivided into sub-frequency bands that can be selectively selected for payload transmission. In the exemplary embodiment illustrated in FIG. 1, the two user data modems 2C, 4C of the two devices 2, 4 are permanently connected to the two power lines 3-1, 3-2 of the first line pair within the power transfer cable 3. In a further possible embodiment of the power transmission system 1 according to the invention, the two user data modems 2C, 4C can be connected to the power lines 3-i of the power transfer cable 3. The connection and disconnection of the user data modems can be controlled by an internal controller 2B, 4B of the respective device 2, 4. In one possible embodiment of the power transmission system 1 according to the invention, the transmission of the useful data signal takes place unidirectionally from one device to the other device. In an alternative embodiment of the power transmission system 1 according to the invention, the transmission of the useful data signal can also be bidirectional between the two devices 2, 4. The unidirectional or bidirectional transmission of the useful data signal is in both cases via two parallel power lines of a line pair within the power transfer cable 3, which have an equal electrical potential. The data communication thus takes place via two power lines of the same potential. As a result, disturbances of the transmitted data due to a simultaneously transmitted transporting current I, for example, a welding current, avoided.
    So that the payload data signal is not short-circuited, a choke for decoupling is preferably provided at both ends of the power transfer cable 3, as will be described in detail in connection with the following figures. This throttle is preferably a current-compensated throttle which does not affect the process characteristic and decouples the payload signal from the connection point. In one possible embodiment, a current-compensated choke with a ferrite core is provided at both ends of the power transfer cable 3, for example the throttles 5, 7 shown in FIG.
    As can be seen in FIG. 3, two throttles each (5-1 / 5-2 and 7-1 / 7-2) can be arranged at each end. In one possible embodiment, the ferrite core is a hinged ferrite core that attaches to and encloses the power lines, much like a cuff. In one possible embodiment, the attached ferrite core is interchangeable. The throttle is preferably designed such that it carries out a current compensation for the current I carrying the electrical power P, for example welding current, whereas it does not bring about any current compensation for the useful data signal. The choke thus prevents a short circuit of the useful data signal at a fork point at which the two power lines of a line pair are galvanically connected to each other or galvanically coupled together. This results in the following arrangement for the power transmission system 1: power source, throttle, modem, power transfer cable, modem, throttle, power sink. In this case, throttle and modem can be integrated accordingly in the power source LQ or power sink LS. The throttle is preferably designed as a current-compensated throttle, so that the inductance for the execution of the welding process is not too high or kept low. To shut off the power or current source 2A, the inductance L of the throttle is designed sufficiently low, so that the welding process is completed as soon as possible after switching off the power source on the side of the welding torch. The curve rise and fall times are correspondingly low, so that the weld produced in the welding process has a high quality. In one possible embodiment, the user data is encoded and / or transmitted in encrypted form. In each case, a coding / decoding unit and / or an encryption / decryption unit are provided on the side of both devices 2, 4.
    The power lines 3-i of the power transfer cable 3 are preferably designed so that they can transmit an electric power P of at least 1 KW from the power source 2A to the power sink 4A.
    Fig. 2 shows an embodiment of the power transmission system 1 according to the invention with a welding device 2, which has a welding power source 2A, which is connected via a power lines comprehensive power transfer cable 3 with a wire feed unit. The power source 2A of the welding apparatus 2 has a first pole (+) with a first electrical potential, which is connected to a first pole (+) of the power sink 4A via two parallel power lines 3-1, 3-2 of a first line pair of the power transfer cable 3, and a second pole (-) having a second electrical potential connected to a second pole (-) of the power sink 4A via two further parallel power lines 3-3, 3-4 of a second line pair within the power transfer cable 3. As can be seen in FIG. 2, a payload modem 2C, 4C is connected on both sides to the two power lines 3-1, 3-2 of the first line pair, which are at the positive electrical potential (+) Serve payload signal. The first pole (+) of the power source or welding power source 2A, which has a first electrical potential, is connected to the first power line 3-1 of the power transfer cable 3 and to the second power line via a first first fork point GP1 provided at a first end of the power transfer cable 3 3-2 of the power transfer cable 3 connected. These two power lines 3-1, 3-2 are connected to the first positive pole (+) of the power sink 4A via a second fork point GP2 provided at a second end of the power transfer cable 3, as shown in FIG. In the same way, the second negative pole (-) of the power source or the welding current source 2A, which has a second negative electrical potential (-), is connected to the third power line 3 via a third fork point GP3 present at the first end of the power transfer cable 3 -3 and with the fourth power line 3-4 of the power transfer cable 3, both of which are connected via a present at the second end of the power transfer cable 3 fourth fork point GP4 with the second negative pole of the power sink 4A. The load cable potential is routed twice so that the power line communication, PLC, is fed in via two welding power lines 3-1, 3-2 of the same potential. As can be seen in Fig. 2, the two first power lines 3-1, 3-2 are at a positive electrical potential (+) and the other two electrical power lines 3-3, 3-4 at a negative electrical potential (-) , In the embodiment shown in FIG. 2, a first current-compensated inductor 5 is provided at the first end of the power transfer cable 3 and a second current-compensated inductor 7 at the second end of the power transfer cradle 3. The first current-compensated inductor 5 has two windings 5A, 5B wherein the first winding 5A is provided on the second power line 3-2 and the second winding 5B is provided on the third power line 3-3. Likewise, the second reactor 7 attached to the other end of the power transfer cable 3 has a first winding 7A and a second winding 7B. The first winding 7A of the second reactor 7 is provided on the second power line 3-2, and the second winding 7B of the second reactor 7 is provided on the third power line 3-3 of the power transfer cable 3. Both reactors 5, 7 thus compensate for the magnetic fields, which are caused by the back and forth flowing power transfer stream, in particular a welding current. By the current-compensated chokes 5, 7, a short circuit of the useful data signal is prevented. The chokes 5, 7 block the RF signal. Moreover, the use of the current-compensated chokes 5, 7 does not affect the power transfer and / or the welding process itself.
    Fig. 3 shows a further embodiment of the power transmission system 1 according to the invention, in which both pole pairs are compensated. The embodiment shown in Fig. 3 is characterized by its symmetrical structure. In this case, the number of power lines determines the number of common mode chokes. Accordingly, in the embodiment shown in FIG. 3, the reactor 5 is composed of two reactors 5-1 and 5-2 on the side of the power source LQ and the reactor 7 of two reactors 7-1 and 7-2 on the side of the power sink LS , The throttles 5-1, 5-2, 7-1 and 7-2 are correspondingly recognizable from the illustrated ferrite cores. As a result, a winding is arranged at each end of the power line.
    In the case of the two embodiment variants shown in FIGS. 2, 3, user data can be transmitted between the welding device 2 and the wire feed device with the aid of the two user data modems 2C, 4C. In this way it is possible, during the power transfer or during the flowing welding current at the same time, to transmit a useful data signal from the welding device 2 to the wire feed device or vice versa from the wire feed device back to the welding device 2. In this case, useful signals in a broadband frequency range, BBFB, of preferably 2 to 30 MHz are transmitted unidirectionally or bidirectionally or half duplex or full duplex. In one possible embodiment, the intended user data frequency range is subdivided into subfrequency bands which can be selectively used as data transmission channels. In this way, it is possible to transmit different process parameters, PP, in order to control the welding process via the power transfer cable 3 in series. Moreover, in other data communication channels or frequency bands, sensor data, SD, obtained from sensors on the welding torch side can be transmitted to the controller 2B of the welder 2 to provide feedback on the progress of the welding process. It is thus possible during the continuous welding process to transmit control signals or welding parameter settings from the welding device 2 to the wire feeder 4. In one possible embodiment, the data communication or data transmission takes place bidirectionally, so that during the transmission of the control data from the welding device 2 to the welding torch 4 different sensor signals or sensor data, SD, can be transmitted to the controller 2B. The transmitted user data are not disturbed or impaired by the simultaneously transmitted welding current I. This is especially the case because the payload data is transmitted on the same-pole lines with identical noise levels, which makes disturbances to the modems invisible. Accordingly, the signal-to-noise ratio is many times higher than if the payload data were transmitted on non-homopolar lines.
    4 shows a further embodiment variant of the power transmission system 1 according to the invention. In the exemplary embodiment shown, the two user data modems 2C, 4C are connected to both line pairs. Both user data modems 2C, 4C are connected to the first line pair with the two power lines 3-1, 3-2 and to the second line pair with the two power lines 3-3, 3-4. Since both line pairs can be used for data transmission in this embodiment, the amount of transmitted user data is increased.
    FIGS. 5, 6, 7 show schematically different application examples for the power transmission system 1 according to the invention. In the exemplary embodiment shown in FIG. 5, a power transfer cable, LTK, 3 electrical power P from a welding machine, SG, to a wire feeder DVG, to which a welding torch SB is connected, transferred. The power transfer cable 3 has four power lines in one possible embodiment. The power transfer cable 3 has two pairs of lines, each with two power lines, which are at the same electrical potential. The data transmission of the user data takes place during the power transmission via power lines of the same electrical potential, so that they remain unaffected in the power transmission.
    Fig. 6 shows as another application as a power source, a photovoltaic module PVM, which is connected to a connection component AK in the power source, wherein the connection component AK via a power transfer cable, LTK, 3 is connected to an inverter WR of the photovoltaic system PVM. The photovoltaic module PVM transmits an electric power P via the power transfer cable 3 to the inverter WR, which can convert the received direct current into an alternating current.
    Fig. 7 shows as another application, the power transmission from a charger LG as a power source to an accumulator AKK as a power sink via a power transfer cable, LTK, 3. In all applications, as shown schematically in Figures 5, 6, 7, the both over the power transfer cable 3 interconnected devices during the power transfer of electrical power P communicate with each other unidirectionally or bidirectionally. Bidirectional includes both full duplex and half duplex. In the power transfer cable 3 according to the invention preferably two pairs of lines, each with two power lines are provided. In alternative embodiments of the power transfer cable 3 according to the invention, further line pairs can be provided. Each line pair consists of two power transmission lines that are at the same electrical potential during power transfer. In one possible embodiment of the power transfer cable 3 according to the invention, data connections for connecting a user data modem 2C, 4C can be provided at both ends of the power transfer cable 3. In a further possible embodiment of the power transmission cable 3 according to the invention, the two user data modems 2C, 4C can also be integrated at the ends of the power transfer cable 3 and connected via a user data interface to a device which has a power source or a power sink. In this embodiment, the power transfer cable 3 has a current interface for connection to the power source or power sink of the device and via a data interface for connection to a control unit of the respective device. The power transfer cable 3 preferably has a protective jacket, in which the various pairs of wires are included. The protective sheath of the power transfer cable 3 may additionally preferably be shielded.
    权利要求:
    Claims (16)
    [1]
    claims
    A power transmission system (1) for transmitting electric power (P) from a power source (2A) to a power sink (4A) via a power transfer cable (3), the power source (2A) and the power sink (4A) each having a first pole a first electrical potential and a second pole having a second electrical potential, wherein the poles are connected via parallel power lines of a first line pair and a second line pair of the power transfer cable (3), wherein during the power transmission via the power lines, a payload signal between the power source (2A ) and the power sink (4A) is transferable via at least one line pair with power lines of the same electrical potential unaffected by the power transmission.
    [2]
    2. Power transmission system according to claim 1, wherein the power transfer cable (3) both on the side of the power source (2A) and on the side of the power sink (4A) has a connected to the power lines or switchable user data modem (2C, 4C), which is for sending and / or receiving a payload signal is provided in a predetermined payload frequency band.
    [3]
    3. Power transmission system according to claim 2, wherein the payload frequency band for the transmitted via the power lines of the same electrical potential Nutzdatensignal in a frequency range of 2 MHz to 30 MHz.
    [4]
    4. The power transmission system according to claim 1, wherein the first pole of the power source having a first electrical potential has a first fork point present at a first end of the power transfer cable Power line (3-1) of the power transfer cable (3) and with a second power line (3-2) of the power transfer cable (3), both via a at a second end of the power transfer cable (3) existing second fork point (GP2) with the the second pole of the power source (2A), which has a second electrical potential, via a third fork point (GP3) present at the first end of the power transfer cable (3) with a third power line (FIG. 3-3) of the power transfer cable (3) and to a fourth power line (3-4) of the power transfer cable (3) is connected, both via a at the second E the power transfer cable (3) fourth fork point (GP4) are connected to the second pole of the power sink (4A).
    [5]
    5. Power transmission system according to one of the preceding claims 1 to 4, wherein at both ends of the power transfer cable (3) in each case at least one throttle (5, 7) is provided for decoupling.
    [6]
    6. A power transmission system according to claim 5, wherein the throttle (5, 7) is a current-compensated throttle.
    [7]
    7. Power transmission system according to one of the preceding claims 1 to 6, wherein the power lines of the power transfer cable (3) are adapted to transmit an electrical power of at least a 1 KW each.
    [8]
    8. The power transmission system according to claim 1, wherein the power source is a welding power source of a welding apparatus that transmits a welding current to a wire feeder as a power sink via the power lines of the power transfer cable.
    [9]
    A power transmission system according to claim 8, wherein said payload data modems (4C, 2C) are connected to a controller (2B, 4B) for transmitting a payload data signal.
    [10]
    10. Power transmission system according to one of the preceding claims 1 to 7, wherein the power source is a photovoltaic module (PVM) of a photovoltaic system, which transmits via the power lines of the power transfer cable (3) a direct electrical current to an inverter (WR) of the photovoltaic system.
    [11]
    11. Power transmission system according to one of the preceding claims 1 to 7, wherein the power source is a charger (LG), which transmits a charging current to a rechargeable accumulator (AKK) as a power sink via the power lines of the power transfer cable (3).
    [12]
    12. A method for transmitting a useful data signal between a first device (2) having a power source (2A), and a second device (4) having a power sink (4A), wherein the two devices (2, 4) via a Power transfer cable (3) for power transfer of electrical power from the power source (2A) of the first device (2) to the power sink (4A) of the second device (4) are connected, wherein the payload signal via parallel power lines of the power transfer cable (3), the have the same electrical potential, is transferred unaffected by the power transfer.
    [13]
    The method of claim 12, wherein the payload signal is transmitted in a predetermined payload frequency band of 2 to 30 MHz.
    [14]
    14. The method of claim 12 or 13, wherein the payload data signal unidirectional or bidirectional via at least two parallel power lines of the power transfer cable (3), which have a same electrical potential is transmitted.
    [15]
    15. Power transfer cable (3) for transferring an electrical power (P) from a power source (2A), in particular a welding power source, to a power sink (4A), in particular a welding torch, wherein the power transfer cable (3) at least two pairs of lines, each with two parallel Power lines, wherein the two parallel power lines of each line pair in the power transfer have the same electrical potential and are electrically connected to each other at both ends of the power transfer cable (3), wherein at least one line pair at both ends of the power transfer cable (3) each have a payload connection to the connection a useful data modem (2C, 4C) is provided, which is suitable for transmitting and / or receiving a transmitted over the two power lines of the line pair payload signal.
    [16]
    16. Power transfer cable according to claim 15, characterized in that the power lines of a line pair are arranged diagonally.
    类似技术:
    公开号 | 公开日 | 专利标题
    DE102013202120B4|2019-07-04|VEHICLE POWER LINE COMMUNICATION SYSTEM
    EP1085674A1|2001-03-21|Network for data and power transmission
    EP1338070B1|2010-10-13|Control and supply system
    EP3241282B1|2019-03-06|Power transmission system
    DE10196797B4|2009-02-26|motor control
    DE102007032643A1|2009-01-15|Apparatus for contactless power transmission, method for transmitting a data signal and system for non-contact power transmission to mobile consumers
    DE10041702A1|2002-03-28|Transmitting high frequency signals on low frequency networks involves feeding signals to side of output lines or rail distributor in order to improve transmission characteristic
    DE102008021012B4|2010-09-30|Data transmission device and use of a data transmission device
    DE102009039024B3|2011-04-28|Data bus connection arrangement and data bus connection instruction
    EP3485499B1|2020-05-20|Coil assembly
    EP2651688A1|2013-10-23|Device for the inductive transmission of electrical energy
    DE202011002552U1|2012-05-11|Using a modem
    DE102007032644B4|2010-03-25|Line terminator and non-contact power and data transmission device
    DE102011010793A1|2012-08-09|Use of modem in communication device for inductive communication with track-guided or rail-guided movable object via untwisted symmetrical two wire line, using communication inductor connected with communication device
    WO2009106109A1|2009-09-03|Inductive data transfer device and system
    EP0752169B1|1998-04-29|Data transmission device in power supply cable networks
    EP2752998A1|2014-07-09|Device for diversity coupling of power line signals into a three conductor current supply network
    DE102019122089A1|2021-02-18|Simultaneous transmission of electricity and data
    DE102016212999A1|2018-01-18|Rotatable inductive coupler
    DE345137C|1921-12-05|Arrangement of electrical transmitting and receiving devices on land vehicles
    AT88620B|1922-05-26|Arrangement of electrical transmitting and receiving devices on land vehicles.
    DE102017111256A1|2018-11-29|Inductive energy transmission system
    WO2018215224A1|2018-11-29|Feed module for an inductive m-phase energy transmission path
    DE202011002561U1|2012-05-11|Device for energy transmission and inductive communication
    DE102011010792A1|2012-08-09|Device for energy transmission and enabling inductive communication of moving objects, has communication unit connected with inductance unit and provided with modem operated according to orthogonal frequency-division multiplexing
    同族专利:
    公开号 | 公开日
    KR101954768B1|2019-05-23|
    WO2016107857A1|2016-07-07|
    JP6480008B2|2019-03-06|
    EP3241282A1|2017-11-08|
    KR20170101297A|2017-09-05|
    CN107113028B|2020-10-16|
    AT516644B1|2020-12-15|
    US20170353217A1|2017-12-07|
    DE102015206253A1|2016-06-30|
    CN107113028A|2017-08-29|
    US10003383B2|2018-06-19|
    JP2018506934A|2018-03-08|
    EP3241282B1|2019-03-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20070080154A1|2004-04-16|2007-04-12|Ott Brian L|Remote wire feeder using binary phase shift keying to modulate communications of command/control signals to be transmitted over a weld cable|
    US7381922B2|2004-10-27|2008-06-03|Illinois Tool Works Inc.|Method and apparatus for remotely controlling a welding system|
    US20140112399A1|2009-06-29|2014-04-24|Sigma Designs Israel S.D.I. Ltd.|Power line communication method and apparatus|
    US20130195116A1|2010-10-15|2013-08-01|Abb Technology Ag|Method for communication in a hvdc power transmission system, controller unit and computer program product|
    WO2012058164A1|2010-10-26|2012-05-03|Illinois Tool Works Inc.|Modular data over power converter for welding power supply|
    US3815054A|1973-07-27|1974-06-04|Rca Corp|Balanced, low impedance, high frequency transmission line|
    US6906618B2|2003-06-26|2005-06-14|Abet Technologies, Llc|Method and system for bidirectional data and power transmission|
    US7205503B2|2003-07-24|2007-04-17|Illinois Tool Works Inc.|Remotely controlled welding machine|
    JP2008042596A|2006-08-08|2008-02-21|Matsushita Electric Ind Co Ltd|Power cable and table tap|
    US7791215B2|2006-10-10|2010-09-07|Barthold Lionel O|Intra-bundle power line carrier current system|
    US8693228B2|2009-02-19|2014-04-08|Stefan Matan|Power transfer management for local power sources of a grid-tied load|
    JP2010283737A|2009-06-08|2010-12-16|Murata Mfg Co Ltd|Power line communication system|
    DE102009052936B8|2009-11-12|2012-05-10|Andrew Wireless Systems Gmbh|Master unit, remote unit as well as multiband transmission system|
    JP4803849B1|2010-12-02|2011-10-26|榮 高橋|How to charge an electric vehicle|
    JP5757122B2|2011-03-25|2015-07-29|住友電気工業株式会社|Monitoring system for photovoltaic power generation|
    JP5594310B2|2012-03-28|2014-09-24|株式会社デンソー|Vehicle communication device|
    JP6214309B2|2013-05-15|2017-10-18|株式会社ダイヘン|Welding apparatus and communication method of welding apparatus|
    US20160136746A1|2014-11-19|2016-05-19|Illinois Tool Works Inc.|Systems and methods for current mode communication via a weld cable|CN106254038B|2016-09-29|2020-02-14|华为技术有限公司|Communication method and device|
    US20180201144A1|2017-01-13|2018-07-19|NextEv USA, Inc.|Authentication using electromagnet signal detection|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA934/2014A|AT516644B1|2014-12-29|2014-12-29|Power transmission system|ATA934/2014A| AT516644B1|2014-12-29|2014-12-29|Power transmission system|
    DE102015206253.8A| DE102015206253A1|2014-12-29|2015-04-08|Power transmission system|
    US15/540,106| US10003383B2|2014-12-29|2015-12-29|Power transmission system|
    EP15817411.0A| EP3241282B1|2014-12-29|2015-12-29|Power transmission system|
    KR1020177021480A| KR101954768B1|2014-12-29|2015-12-29|Power transmission system|
    JP2017552235A| JP6480008B2|2014-12-29|2015-12-29|Power transmission system|
    PCT/EP2015/081323| WO2016107857A1|2014-12-29|2015-12-29|Power transmission system|
    CN201580071770.8A| CN107113028B|2014-12-29|2015-12-29|Power transmission system|
    [返回顶部]