WO2018192291A1 - Energy supply system and method - Google Patents

Energy supply system and method Download PDF

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Publication number
WO2018192291A1
WO2018192291A1 PCT/CN2018/074906 CN2018074906W WO2018192291A1 WO 2018192291 A1 WO2018192291 A1 WO 2018192291A1 CN 2018074906 W CN2018074906 W CN 2018074906W WO 2018192291 A1 WO2018192291 A1 WO 2018192291A1
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WO
WIPO (PCT)
Prior art keywords
voltage
interlayer
isolation transformer
connector
potential
Prior art date
Application number
PCT/CN2018/074906
Other languages
French (fr)
Chinese (zh)
Inventor
吕玮
谢晔源
杨兵
石巍
王文杰
刘彬
汪涛
李乐乐
Original Assignee
南京南瑞继保电气有限公司
南京南瑞继保工程技术有限公司
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Application filed by 南京南瑞继保电气有限公司, 南京南瑞继保工程技术有限公司 filed Critical 南京南瑞继保电气有限公司
Publication of WO2018192291A1 publication Critical patent/WO2018192291A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/10—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only

Definitions

  • the present invention relates to the field of power electronics, and more particularly to an energy supply system and method.
  • the high-voltage DC power electronic device is formed by connecting a single power electronic device in series, wherein each power electronic device needs to have independent driving circuit for control, and each driving circuit is equipotential with the power electronic device controlled thereby, and needs to be
  • the drive circuit provides energy to operate the drive circuit.
  • the working environment of the power electronic device is at a high potential
  • the working environment of the driving circuit is also at a high potential
  • the driving circuit cannot directly use the low potential power supply, and since the current in the direct current transmission line does not change, the driving circuit It is also impossible to directly obtain energy directly from the alternating electromagnetic field in the line.
  • the main functions of high-voltage power electronics are laser power supply, solar energy supply, etc. However, due to limited laser energy and insufficient solar energy stability, it is difficult to achieve in actual engineering through laser or solar energy supply. .
  • the prior art uses a high-voltage high-frequency isolation transformer to achieve isolation between low-potential energy and high-potential energy.
  • one method is to connect a plurality of magnetic rings in series on one insulated cable, and one magnetic ring corresponds to one power electronic device.
  • the driving circuit is powered by a magnetic ring for each driving circuit of the power electronic device; or, as shown in FIG. 2, another method is that a transformer supplies power to a driving circuit of a power electronic device.
  • the high-voltage power electronic device is often connected in series by several hundred power electronic devices, when the number of driving circuits of the power electronic devices connected in series on one insulated cable is large, Increasing the voltage causes the voltage of the insulated cable to rise; in the second method of the prior art, since a power electronic device needs to be powered by a transformer, the high voltage power electronic device is often The connection of hundreds of power electronics in series will result in a large number of transformers in series.
  • embodiments of the present invention are expected to provide an energy supply system and method capable of reducing the voltage carried by an insulated cable and reducing the number of transformers of a high potential energy supply system.
  • An embodiment of the present invention provides an energy supply system, where the system includes:
  • n inter-layer energizing circuits and n interlayer isolation transformers connected to the second end of the high voltage isolation transformer circuit, wherein n is greater than or equal to 1;
  • the low potential power source is configured to send a low potential alternating current voltage to the high voltage isolation transformer circuit
  • the high voltage isolation transformer circuit is configured to receive the low potential alternating voltage and convert the low potential alternating voltage into a high potential alternating voltage and send to the first layer of the n interlayer energizing circuits An intervening circuit and a first interlayer isolation transformer of the n interlayer isolation transformers;
  • the i-th interlayer power supply circuit of the n interlayer power supply circuits is configured to receive the high-potential AC voltage sent by the i-1th interlayer isolation transformer, and convert the high-potential AC voltage For regulated DC voltage, i is greater than 1;
  • the i-th interlayer isolation transformer of the n interlayer isolation transformers is configured to receive the high-potential AC voltage sent by the ith-1th interlayer isolation transformer, and send the high-potential AC voltage To the i+1th interlayer isolation transformer and the i+1th interlayer supply circuit.
  • the first connector and the second connector of the first end of the high voltage isolation transformer circuit are connected to the first connector and the second connector of the low potential power source, the high voltage isolation transformer circuit The first connection and the second connection of the second end and the first connection and the second connection of the first end of the first interlayer isolation transformer, and the first connection of the first interlayer supply circuit Connecting the first connector and the second connector, the first connector and the second connector of the second end of the first interlayer isolation transformer and the first connector and the second connector of the first end of the ith interlayer isolation transformer a first connector and a second connector of the ith interlayer power supply circuit are connected, and the first connector and the second connector of the second end of the ith interlayer isolation transformer are connected to the first connector The first connector and the second connector of the first end of the i+1 interlayer isolation transformer, and the first connector and the second connector of the i+1th interlayer power supply circuit are connected;
  • a first interlayer isolation transformer of the n interlayer isolation transformers configured to receive the high potential alternating voltage sent by the high voltage isolation transformer circuit, and send the high potential alternating voltage to the first i interlayer isolation transformers.
  • the high voltage isolation transformer circuit includes: n first transformers connected to the low potential power source, and n voltage equalization circuits connected to the n first transformers;
  • the n voltage equalization circuits are configured to convert the first voltages of the n first transformers corresponding to the n voltage equalization circuits into a preset voltage.
  • the n interlayer power supply circuits include: n insulated cables, m through-current current transformers CT connected to any one of the n insulated cables, and the m through cores m rectifying and stabilizing circuits connected by CT and m driving circuits connected to the m rectifying and stabilizing circuits, m is greater than or equal to 1;
  • a first insulated cable corresponding to the first interlayer power supply circuit of the n insulated cables is connected to a second end of the high voltage isolation transformer circuit;
  • An ith insulated cable corresponding to the ith interlayer power supply circuit of the n insulated cables is connected to a second end of the ith-1th interlayer isolation transformer;
  • the m core CTs are configured to receive the high-potential AC voltage sent by at least one of the high-voltage isolation transformer circuit and the n interlayer isolation transformers, and convert the high-potential AC voltage into First potential alternating voltage;
  • the m rectifier voltage stabilizing circuits are configured to receive the first potential AC voltage sent by the m core CTs, and convert the first potential AC voltage into the regulated DC voltage;
  • the m driving circuits are configured to receive the regulated DC voltage sent by the m rectifier voltage stabilizing circuits, and use the regulated DC voltage to provide power.
  • the n interlayer power supply circuits further include: n fault control circuits connected to the n insulated cables and the n interlayer isolation transformers;
  • the n fault control circuits are configured to determine a current current value corresponding to the high-potential AC voltage on the n insulated cables and a preset threshold, and receive the high-potential AC voltage according to the determination result.
  • any one of the n fault control circuits includes: a current detecting unit, m impedance matching units and a control unit connected to the current detecting unit, and the m impedance matching units and The control unit is connected;
  • the current detecting unit is configured to receive a current current value in the insulated cable corresponding to any one of the fault control circuits, and compare the current current value with a preset threshold, where the current current value is greater than the preset Sending a first start command to the control unit when thresholding;
  • the control unit is configured to receive a first start command sent by the current detecting unit, and start the m impedance matching units according to the first start command;
  • the m impedance matching units are configured to convert the current current value into a preset current value.
  • the n impedance matching units are composed of n first capacitors, n inductors, n first resistors, and n switches, wherein the first one of the n first capacitors is first a first end of the capacitor is coupled to the current detecting unit, a first end of the first one of the n first resistors, and a first end of the first one of the n switches, a second end of the first first capacitor is coupled to a first end of the first one of the n inductors, a second end of the first inductor and a first one of the first first resistor a second end, a second end of the first switch, a first end of the ith first capacitor, a first end of the ith first resistor, and a first end of the ith switch, the ith The second end of the first capacitor is connected to the first end of the ith inductor, the second end of the ith inductor is opposite to the second end of the ith switch, and the ith first resistor The second end of the first capacitor
  • the n voltage equalization circuits are composed of n second capacitors and n second resistors, and the first ends of the n second capacitors and the first ends of the n second resistors The first ends of the n first transformers are connected, and the second ends of the n second capacitors are connected to the second ends of the n second resistors and the second ends of the n first transformers.
  • the second end of the high voltage isolation transformer circuit and the second end of the n interlayer isolation transformers have three connectors;
  • the first end and the second end of the first interlayer power supply circuit are connected to the first connector and the second connector of the second end of the high voltage isolation transformer circuit, the first interlayer isolation transformer a first connector and a second connector at one end are connected to the second connector and the third connector of the second end of the high voltage isolation transformer circuit, the first connector of the i-th interlayer power supply circuit and a second connector is connected to the first connector and the second connector isolation transformer of the second end of the i-1th interlayer isolation transformer, and the first connection of the first end of the i-th interlayer isolation transformer The head and the second connector are connected to the second connector and the third connector of the second end of the i-1th interlayer isolation transformer.
  • An embodiment of the present invention provides an energy supply method, where the method includes:
  • the low potential power source generates a low potential AC voltage and sends it to the high voltage isolation transformer;
  • the high voltage isolation transformer converts the low potential alternating voltage into a high potential alternating voltage, and sends the high potential alternating voltage to a first interlayer energizing circuit and n layers of n interlayer energizing circuits
  • the first interlayer isolation transformer in the isolation transformer is operated for the n-layer driving circuit corresponding to the n interlayer energy supply circuits, and n is greater than or equal to 1.
  • the transmitting the high-potential AC voltage to the first interlayer power supply circuit of the n interlayer power supply circuits and the first interlayer isolation transformer of the n interlayer isolation transformers further includes:
  • the first interlayer isolation transformer After receiving the high-potential AC voltage, the first interlayer isolation transformer sends the high-potential AC voltage to the ith interlayer power supply circuit and the ith interlayer isolation transformer, where i is greater than 1, less than or equal to n;
  • the i-th interlayer isolation transformer sends the high-potential AC voltage to the (i+1)th interlayer isolation transformer and the i+1th interlayer energy supply circuit for supplying energy to the (i+1)th layer
  • the circuit operates for the corresponding i+1th layer driving circuit
  • the i-th interlayer power supply circuit After receiving the high-potential AC voltage, the i-th interlayer power supply circuit converts the high-potential voltage into a regulated DC voltage for the operation of the ith layer driving circuit.
  • the method further includes:
  • the standby circuit is activated when the current current value is greater than the predetermined threshold.
  • Embodiments of the present invention provide an energy supply system and method, through a high voltage isolation transformer circuit; a low potential power supply connected to the first end of the high voltage isolation transformer circuit; and a second terminal connected to the high voltage isolation transformer circuit
  • An interlayer power supply circuit and n interlayer isolation transformers, n is greater than or equal to 1; wherein, the low potential power supply is used to send a low potential alternating voltage to the high voltage isolation transformer circuit; the high voltage isolation transformer circuit is used to receive the low potential AC voltage, and convert low-potential AC voltage into high-potential AC voltage, sent to the first interlayer energy supply circuit of the n interlayer energy supply circuits and the first interlayer isolation of the n interlayer isolation transformers Transformer; the i-th interlayer supply circuit in the n interlayer energy supply circuits, for receiving the high-potential AC voltage sent by the i-1th interlayer isolation transformer, and converting the high-potential AC voltage into a regulated DC Voltage, i is greater than 1; the ith interlayer isolation transformer in
  • the above technical implementation scheme divides the driving circuit into n layers, and the n interlayer energy supply circuits supply voltages to the driving circuits of the respective layers, and each interlayer energy supply circuit corresponds to one insulated cable, thereby reducing the driving on the insulated cable.
  • the operation of each layer of the drive circuit reduces the number of transformers in the high potential function system.
  • FIG. 1 is a schematic structural diagram 1 of a prior art for supplying power to a high-potential driving device
  • FIG. 2 is a schematic structural view 2 of a prior art for supplying power to a high-potential driving device
  • FIG. 3 is a schematic block diagram 1 of a power supply system according to an embodiment of the present invention.
  • FIG. 4 is a schematic block diagram 2 of a power supply system according to an embodiment of the present invention.
  • FIG. 5 is a schematic block diagram 3 of a structure of an energy supply system according to an embodiment of the present disclosure
  • FIG. 6 is a schematic circuit diagram of an interlayer power supply circuit according to an embodiment of the present invention.
  • FIG. 7 is a schematic circuit diagram of a fault control unit according to an embodiment of the present invention.
  • FIG. 8 is a schematic circuit diagram of an impedance matching unit according to an embodiment of the present invention.
  • FIG. 9 is a schematic circuit diagram of a voltage equalization unit according to an embodiment of the present invention.
  • FIG. 10 is a schematic circuit diagram of power supply of a high voltage isolation transformer according to an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of a circuit for simultaneously applying two sets of power supply circuits according to an embodiment of the present invention.
  • FIG. 12 is a flowchart of an energy supply method according to an embodiment of the present invention.
  • An embodiment of the present invention provides an energy supply system 1.
  • the system 1 may include:
  • n is greater than or equal to 1;
  • the low potential power source 11 is configured to send a low potential alternating current voltage to the high voltage isolation transformer circuit 10;
  • the high voltage isolation transformer circuit 10 is configured to receive the low potential alternating voltage and convert the low potential alternating voltage into a high potential alternating voltage and send the first to the n interlayer energizing circuits 12
  • the i-th interlayer power supply circuit 13 of the n interlayer power supply circuits 12 is configured to receive the high-potential AC voltage sent by the i-1th interlayer isolation transformer 13, and the high potential The AC voltage is converted to a regulated DC voltage, i is greater than 1;
  • the i-th interlayer isolation transformer 13 of the n interlayer isolation transformers 13 is configured to receive the high-potential AC voltage sent by the ith-1th interlayer isolation transformer 13, and the high potential The AC voltage is sent to the i+1th interlayer isolation transformer 13 and the i+1th interlayer energy supply circuit 12.
  • An energy supply system provided by an embodiment of the present invention is suitable for use in a scenario in which a low-potential AC voltage is used to provide power to a driving circuit having a high potential.
  • the voltage provided by the low potential power source is a low potential alternating voltage.
  • the high voltage isolation transformer 10 converts the low potential AC voltage into a high potential AC voltage, and sends a high potential AC voltage to the first interlayer energy supply circuit 12 and the first interlayer isolation transformer 13, the first The interlayer isolation transformer 13 supplies a high potential alternating current voltage to the i-th interlayer energy supply circuit 12, and transmits the high potential alternating current voltage to the i-th interlayer isolation transformer 13 for the i-th interlayer isolation transformer 13
  • the i+1 inter-layer energizing circuit 12 supplies a high-potential AC voltage, and transmits the high-potential AC voltage to the i+1th interlayer isolation transformer 13, and so on, and the high-voltage isolation transformer 10 is isolated from the n layers.
  • the transformer 13 supplies a high potential alternating voltage to the n interlayer energizing circuits.
  • the interlayer isolation transformer 13 performs a process of isolating the high potential and the low potential voltage, and does not change the voltage value of the high potential alternating voltage.
  • the input end of the high voltage isolation transformer circuit 10 is connected to a low potential power source, and the output end of the high voltage isolation transformer circuit 10 is respectively connected to the first interlayer power supply circuit 12 of the n interlayer power supply circuits 12.
  • the input of the first interlayer isolation transformer 13 of the n interlayer isolation transformers 13 the output of the first interlayer isolation transformer 13 is connected to the i-th interlayer energy supply circuit 12 and the i-th interlayer isolation
  • the first connector and the second connector of the first end of the high voltage isolation transformer circuit 10 are connected to the first connector and the second connector of the low potential power source 11 .
  • a first connector and a second connector of the first end of the second end of the high voltage isolation transformer circuit 10 and the first connector and the first end of the first interlayer isolation transformer 13 The first connector and the second connector of the interlayer power supply circuit 12 are connected, and the first connector and the second connector of the second end of the first interlayer isolation transformer 13 and the ith interlayer isolation transformer
  • the first connector and the second connector of the first end, the first connector and the second connector of the ith interlayer power supply circuit 12 are connected, and the ith interlayer isolation transformer 13 is second.
  • the first connector and the second connector of the terminal and the first connector and the second connector of the first end of the i+1th interlayer isolation transformer 13 and the i+1th interlayer power supply circuit 12 a connector and a second connector are connected;
  • the first interlayer isolation transformer 13 of the n interlayer isolation transformers 13 is configured to receive the high-potential AC voltage sent by the high-voltage isolation transformer circuit 10, and send the high-potential voltage to the The i-th interlayer isolation transformer 13 is described.
  • the high voltage isolation transformer circuit 10 includes: n first transformers 100 connected to the low potential power source 11 and n voltage equalization circuits connected to the n first transformers 100. 101;
  • first transformers 100 are configured to convert the low potential alternating current voltage into the high potential alternating current voltage
  • the n voltage equalization circuits 101 are configured to convert the first voltages of the n first transformers 100 corresponding to the n voltage equalization circuits 101 into preset voltages.
  • the high voltage isolation transformer circuit 10 is composed of n first transformers 100 and n voltage equalization circuits 101 corresponding to the n first transformers 100, wherein the input end of the first first transformer 100 is low.
  • the potential power source 11 is connected, the output end of the first first transformer 100 is connected to the input end of the ith first transformer 100, and so on, the output end of the nth first transformer 100 and the first interlayer isolation transformer 13
  • the first end is connected to the first end of the first interlayer energizing circuit 12.
  • the input ends of the n first transformers 100 are connected to the first ends of the n voltage equalization circuits 101, and the output ends of the n first transformers 100 are connected to the second ends of the n voltage equalization circuits 101.
  • the n interlayer power supply circuits 12 include: n insulated cables 120, and m through-current current transformers CT121 connected to any one of the n insulated cables 120.
  • M rectifier voltage regulator circuits 122 connected to the m core CT121 and m drive circuits 123 connected to the m rectifier voltage regulator circuits 122;
  • a first insulated cable 120 corresponding to the first interlayer power supply circuit 12 of the n insulated cables 120 is connected to a second end of the high voltage isolation transformer circuit 10;
  • An ith insulated cable 120 corresponding to the ith interlayer power supply circuit 12 of the n insulated cables 120 is connected to a second end of the ith-1th interlayer isolation transformer 13;
  • the m core CTs 121 are configured to receive the high-potential AC voltage sent by at least one of the high-voltage isolation transformer circuit 10 and the n interlayer isolation transformers 13, and the high-potential AC voltage Converted to a first potential alternating voltage;
  • the m rectifier voltage regulator circuits 122 are configured to receive the first potential AC voltage sent by the m core CTs 121, and convert the first potential AC voltage into the regulated DC voltage;
  • the m driving circuits 123 are configured to receive the regulated DC voltage sent by the m rectifying and regulating circuits 122, and provide the electric energy by using the regulated DC voltage.
  • one driving circuit 124 corresponds to one rectifying and regulating circuit 122 and one through-core CT121.
  • the n interlayer power supply circuits 12 further include: n fault control circuits 124 connected to the n insulated cables 120 and the n interlayer isolation transformers 13;
  • the n fault control circuits 124 are configured to determine a current current value corresponding to the high-potential AC voltage on the n insulated cables 120 and a preset threshold, and receive the high-potential AC voltage according to the determination result. .
  • the driving circuit 123 is arranged in five layers up and down, each layer is 100 kV, and each layer is connected in series by about 50 driving circuits 123, and the number of the through-core CT121 and the rectifying and regulating unit 122 is consistent with the device.
  • the high voltage isolation transformer 10 can be connected in series by five 100 kV medium voltage transformers 100, and can be placed in an insulating sleeve filled with SF6 gas or insulating oil in series.
  • the interlayer isolation transformer 13 voltage and insulated cable 120 are both 100kV, which reduces the insulation level requirements of the equipment.
  • any one of the n fault control circuits 124 includes: a current detecting unit 1240, m impedance matching units 1241 connected to the current detecting unit 1240, and a control unit 1242, where the m The impedance matching unit 1241 is connected to the control unit 1242;
  • the current detecting unit 1240 is configured to receive a current current value in the insulated cable 120 corresponding to the any one of the fault control circuits 124, and compare the current current value with a preset threshold, where the current current value is greater than Sending a first start command to the control unit when the threshold is preset;
  • the control unit 1242 is configured to receive a first start command sent by the current detecting unit, and start the m impedance matching units 1241 according to the first start command;
  • the m impedance matching units 1241 are configured to convert the current current value into a preset current value.
  • the current in the insulated cable 120 is linear with the number of the driving circuit 123.
  • a driving circuit 123 fails, the equivalent impedance of the insulated cable 120 is reduced, and the induced current is increased, so that the normal device is made.
  • the output voltage of the CT121 is too high, causing an overvoltage fault of the normal-level rectifier voltage regulator unit, resulting in a fault amplification.
  • the fault control circuit 124 is added, when the fault control circuit 124 detects that the drive circuit 123 is faulty, the specified number of impedance matching units 1241 are activated, and the amount of the applied on the insulated cable can be balanced, and the power supply system 1 is improved. reliability.
  • the n impedance matching units 1241 are composed of n first capacitors 12410 , n inductors 12411 , n first resistors 12412 , and n switches 12413 , where the n a first end of the first first capacitor 12410 of the first capacitor 12410 and the current detecting unit 1240, the first end of the first one of the n first resistors 12412 and the first end The first end of the first switch 12413 is connected, and the second end of the first first capacitor 12410 is connected to the first end of the first one of the n inductors 12411, the The second end of the first inductor 12411 and the second end of the first first resistor 12412, the second end of the first switch 12413, the first end of the ith first capacitor 12410, the ith The first end of the first resistor 12412 is connected to the first end of the ith switch 12413, and the second end of the ith first capacitor is connected to the first end
  • the n voltage equalization circuits 101 are composed of n second capacitors 1010 and n second resistors 1011, and the first ends of the n second capacitors 1010 and the n The first ends of the second resistors 1011 are connected to the first ends of the n first transformers 100, and the second ends of the n second capacitors 1010 and the second ends of the n second resistors 1011 are The second ends of the n first transformers 100 are connected.
  • the second end of the high voltage isolation transformer circuit 10 and the second end of the n interlayer isolation transformers 13 have three connectors; wherein the first layer is The first end and the second end of the power supply circuit 12 are connected to the first connector and the second connector of the second end of the high voltage isolation transformer circuit 10, and the first end of the first interlayer isolation transformer 13 A connector and a second connector are connected to the second connector and the third connector of the second end of the high voltage isolation transformer circuit 10, and the first connector and the second connector of the i-th interlayer power supply circuit 12
  • the connector is connected to the first connector of the second end of the i-1th interlayer isolation transformer 13 and the isolation transformer 13 of the second connector, and the first end of the first end of the i-th interlayer isolation transformer 13
  • the connector and the second connector are connected to the second connector and the third connector of the second end of the i-1th interlayer isolation transformer 13.
  • the high voltage isolation transformer circuit 10 provides different voltages for the interlayer energy supply circuit 12 and the interlayer isolation transformer 13, and in actual operation, the specifications of the insulated cable 120 and the interlayer isolation transformer 13 are reduced, and Conducive to specific implementation.
  • the n interlayer power supply circuits 12 correspond to 2n insulated cables 120, that is, each of the interlayer power supply circuits 12 corresponds to two insulated cables 120, and the two insulated cables are respectively responsive.
  • the fault control unit 124, the high voltage isolation transformer circuit 10, the low potential power source 11 and the interlayer isolation transformer 13 are connected. Therefore, the interlayer power supply circuit 12 is powered by two energy supply systems, one of which is set. After the power supply system 1 is powered off, the other energy supply system 1 can continuously provide power, which enhances the reliability of the power supply system 1 power supply.
  • the embodiment of the present invention provides a power supply method corresponding to the energy supply system. As shown in FIG. 12, the method may include:
  • the low potential power source generates a low potential AC voltage and sends it to the high voltage isolation transformer.
  • the high-voltage isolation transformer converts the low-potential AC voltage into a high-potential AC voltage, and sends the high-potential AC voltage to the first interlayer energizing circuit and the n interlayer isolation transformers of the n interlayer energizing circuits
  • the first interlayer isolation transformer operates for n-layer drive circuits corresponding to n interlayer energizing circuits, n being greater than or equal to one.
  • the first interlayer isolation transformer After receiving the high-potential AC voltage, the first interlayer isolation transformer sends the high-potential AC voltage to the ith interlayer power supply circuit and the ith interlayer isolation transformer, where i is greater than 1, less than or equal to n.
  • the i-th interlayer isolation transformer sends the high-potential AC voltage to the i+1th interlayer isolation transformer and the i+1th interlayer energy supply circuit, so that the i+1th interlayer energy supply circuit is The corresponding i+1th layer driving circuit works.
  • the i-th interlayer energy supply circuit After receiving the high-potential AC voltage, the i-th interlayer energy supply circuit converts the high-potential voltage into a regulated DC voltage for the operation of the i-th layer driving circuit.
  • the nth layer fault detecting unit acquires a current current value corresponding to the nth interlayer energy supply circuit.
  • the nth layer fault detecting unit compares the current current value with a preset threshold.
  • the nth layer fault detecting unit starts the standby circuit.
  • the low potential alternating voltage is converted into a regulated direct current voltage for operation of the driving circuit.
  • the current current value corresponding to the high-potential AC voltage is compared with a preset threshold.
  • the specified number of standby circuits are started according to the preset strategy until the current current value is equal to the pre-predetermined value. Set the current value.
  • the high voltage isolation transformer circuit converts the low potential alternating voltage into a high potential alternating voltage, and sends the high potential alternating voltage to the n interlayer energizing circuits through the n interlayer isolation transformers.
  • the n inter-layer energizing circuits convert the high-potential AC voltage into a regulated DC voltage to complete the process of supplying power for the operation of the driving circuit.
  • the fault control unit starts the impedance matching unit. To balance the current in the insulated cable.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

An energy supply system and method. The system comprises: a high-voltage isolation transformer circuit (10); a low-potential power supply (11) connected to a first end of the high-voltage isolation transformer circuit; and n interlayer energy supply circuits (12) and n interlayer isolation transformers (13) connected to a second end of the high-voltage isolation transformer circuit, n being greater than or equal to 1, wherein the ith interlayer energy supply circuit in the n interlayer energy supply circuits is used for receiving a high-potential alternating-current voltage transmitted by the (i-1)th interlayer isolation transformer, and converting the high-potential alternating-current voltage into a voltage-stabilizing direct-current voltage, i being greater than 1; and the ith interlayer isolation transformer in the n interlayer isolation transformers is used for receiving the high-potential alternating-current voltage transmitted by the (i-1)th interlayer isolation transformer, and sending the high-potential alternating-current voltage to the (i+1)th interlayer isolation transformer and the (i+1)th interlayer energy supply circuit.

Description

一种供能系统及方法Energy supply system and method 技术领域Technical field
本发明涉及电力电子领域，尤其涉及一种供能系统及方法。The present invention relates to the field of power electronics, and more particularly to an energy supply system and method.
背景技术Background technique
高压直流电力电子设备是通过单个电力电子器件串联而成的，其中，每个电力电子器件都需要有独立的驱动电路进行控制，每个驱动电路与其控制的电力电子器件是等电位的，需要为驱动电路提供能量才能使驱动电路工作。但是由于电力电子器件的工作环境是处于高电位，因此，驱动电路的工作环境也处于高电位，驱动电路无法直接使用低电位供电，并且，由于直流输电线路中的电流是不变化的，驱动电路也无法直接通过线路中的交变电磁场直接获取能量。目前，为高压电力电子功能的方式主要有激光供能、太阳能供能等，但是，也由于激光能量有限、太阳能的稳定性不够等原因，通过激光或者太阳能供能在实际工程中均很难实现。The high-voltage DC power electronic device is formed by connecting a single power electronic device in series, wherein each power electronic device needs to have independent driving circuit for control, and each driving circuit is equipotential with the power electronic device controlled thereby, and needs to be The drive circuit provides energy to operate the drive circuit. However, since the working environment of the power electronic device is at a high potential, the working environment of the driving circuit is also at a high potential, the driving circuit cannot directly use the low potential power supply, and since the current in the direct current transmission line does not change, the driving circuit It is also impossible to directly obtain energy directly from the alternating electromagnetic field in the line. At present, the main functions of high-voltage power electronics are laser power supply, solar energy supply, etc. However, due to limited laser energy and insufficient solar energy stability, it is difficult to achieve in actual engineering through laser or solar energy supply. .
现有技术是采用高压高频隔离变压器实现低电位能量与高电位能量的隔离，如图1所示，一种方法是一条绝缘电缆上串联多个磁环，一个磁环又对应一个电力电子器件的驱动电路，由磁环为每一个电力电子器件的驱动电路供能；或者，如图2所示，另一种方法是一个变压器为一个电力电子器件的驱动电路供能。The prior art uses a high-voltage high-frequency isolation transformer to achieve isolation between low-potential energy and high-potential energy. As shown in FIG. 1, one method is to connect a plurality of magnetic rings in series on one insulated cable, and one magnetic ring corresponds to one power electronic device. The driving circuit is powered by a magnetic ring for each driving circuit of the power electronic device; or, as shown in FIG. 2, another method is that a transformer supplies power to a driving circuit of a power electronic device.
然而，在现有技术的第一种方法中，由于高压电力电子设备往往是由几百个电力电子器件串联，因此，一条绝缘电缆上串联的电力电子器件的驱动电路数量庞大时，此时会使电压升高，导致绝缘电缆的承载的电压升高；在现有技术的第二种方法中，由于一个电力电子器件都需要由一个变压器为其供能，而高压电力电子设备往往是由几百个电力电子器件串联，将导致串联的变压器数量众多。However, in the first method of the prior art, since the high-voltage power electronic device is often connected in series by several hundred power electronic devices, when the number of driving circuits of the power electronic devices connected in series on one insulated cable is large, Increasing the voltage causes the voltage of the insulated cable to rise; in the second method of the prior art, since a power electronic device needs to be powered by a transformer, the high voltage power electronic device is often The connection of hundreds of power electronics in series will result in a large number of transformers in series.
发明内容Summary of the invention
为解决上述技术问题，本发明实施例期望提供一种供能系统及方法，能够降低绝缘电缆承载的电压、减少高电位供能系统的变压器数量。In order to solve the above technical problems, embodiments of the present invention are expected to provide an energy supply system and method capable of reducing the voltage carried by an insulated cable and reducing the number of transformers of a high potential energy supply system.
本发明的技术方案是这样实现的：The technical solution of the present invention is implemented as follows:
本发明实施例提供一种供能系统，所述系统包括：An embodiment of the present invention provides an energy supply system, where the system includes:
高压隔离变压电路；High voltage isolation transformer circuit;
与所述高压隔离变压电路的第一端连接的低电位电源；a low potential power source connected to the first end of the high voltage isolation transformer circuit;
与所述高压隔离变压电路的第二端连接的n个层间供能电路和n个层间隔离变压器，n大于等于1；其中，n inter-layer energizing circuits and n interlayer isolation transformers connected to the second end of the high voltage isolation transformer circuit, wherein n is greater than or equal to 1;
所述低电位电源，用于向高压隔离变压电路发送低电位交流电压；The low potential power source is configured to send a low potential alternating current voltage to the high voltage isolation transformer circuit;
所述高压隔离变压电路，用于接收所述低电位交流电压，并将所述低电位交流电压转化成高电位交流电压，发送至所述n个层间供能电路中的第一个层间供能电路和所述n个层间隔离变压器中的第一个层间隔离变压器；The high voltage isolation transformer circuit is configured to receive the low potential alternating voltage and convert the low potential alternating voltage into a high potential alternating voltage and send to the first layer of the n interlayer energizing circuits An intervening circuit and a first interlayer isolation transformer of the n interlayer isolation transformers;
所述n个层间供能电路中的第i个层间供能电路，用于接收第i-1个层间隔离变压 器发送的所述高电位交流电压，并将所述高电位交流电压转化为稳压直流电压，i大于1；The i-th interlayer power supply circuit of the n interlayer power supply circuits is configured to receive the high-potential AC voltage sent by the i-1th interlayer isolation transformer, and convert the high-potential AC voltage For regulated DC voltage, i is greater than 1;
所述n个层间隔离变压器中的第i个层间隔离变压器，用于接收所述第i-1个层间隔离变压器发送的所述高电位交流电压，并将所述高电位交流电压发送至第i+1个层间隔离变压器和第i+1个层间供能电路。The i-th interlayer isolation transformer of the n interlayer isolation transformers is configured to receive the high-potential AC voltage sent by the ith-1th interlayer isolation transformer, and send the high-potential AC voltage To the i+1th interlayer isolation transformer and the i+1th interlayer supply circuit.
在上述系统中，所述高压隔离变压电路第一端的第一连接头和第二连接头与所述低电位电源的第一连接头和第二连接头连接，所述高压隔离变压电路第二端的第一连接头与第二连接头与所述第一个层间隔离变压器第一端的第一连接头和第二连接头、所述第一个层间供能电路的第一连接头和第二连接头连接，所述第一个层间隔离变压器第二端的第一连接头和第二连接头与所述第i个层间隔离变压器第一端的第一连接头和第二连接头、所述第i个层间供能电路的第一连接头和第二连接头连接，所述第i个层间隔离变压器第二端的第一连接头和第二连接头与所述第i+1个层间隔离变压器第一端的第一连接头和第二连接头、第i+1个层间供能电路的第一连接头和第二连接头连接；In the above system, the first connector and the second connector of the first end of the high voltage isolation transformer circuit are connected to the first connector and the second connector of the low potential power source, the high voltage isolation transformer circuit The first connection and the second connection of the second end and the first connection and the second connection of the first end of the first interlayer isolation transformer, and the first connection of the first interlayer supply circuit Connecting the first connector and the second connector, the first connector and the second connector of the second end of the first interlayer isolation transformer and the first connector and the second connector of the first end of the ith interlayer isolation transformer a first connector and a second connector of the ith interlayer power supply circuit are connected, and the first connector and the second connector of the second end of the ith interlayer isolation transformer are connected to the first connector The first connector and the second connector of the first end of the i+1 interlayer isolation transformer, and the first connector and the second connector of the i+1th interlayer power supply circuit are connected;
所述n个层间隔离变压器中的第一个层间隔离变压器，用于接收所述高压隔离变压电路发送的所述高电位交流电压，并将所述高电位交流电压发送至所述第i个层间隔离变压器。a first interlayer isolation transformer of the n interlayer isolation transformers, configured to receive the high potential alternating voltage sent by the high voltage isolation transformer circuit, and send the high potential alternating voltage to the first i interlayer isolation transformers.
在上述系统中，所述高压隔离变压电路包括：与低电位电源连接的n个第一变压器、与所述n个第一变压器连接的n个电压均衡电路；In the above system, the high voltage isolation transformer circuit includes: n first transformers connected to the low potential power source, and n voltage equalization circuits connected to the n first transformers;
所述n个第一变压器，用于将所述低电位交流电压转化为所述高电位交流电压；The n first transformers for converting the low potential alternating voltage into the high potential alternating current voltage;
所述n个电压均衡电路，用于将与所述n个电压均衡电路对应的n个第一变压器的第一电压转化为预设电压。The n voltage equalization circuits are configured to convert the first voltages of the n first transformers corresponding to the n voltage equalization circuits into a preset voltage.
在上述系统中，所述n个层间供能电路包括：n个绝缘电缆、与所述n个绝缘电缆中的任意一个连接的m个穿心电流互感器CT、与所述m个穿心CT连接的m个整流稳压电路和与所述m个整流稳压电路连接的m个驱动电路，m大于等于1；In the above system, the n interlayer power supply circuits include: n insulated cables, m through-current current transformers CT connected to any one of the n insulated cables, and the m through cores m rectifying and stabilizing circuits connected by CT and m driving circuits connected to the m rectifying and stabilizing circuits, m is greater than or equal to 1;
所述n个绝缘电缆中与所述第一个层间供能电路对应的第一个绝缘电缆与所述高压隔离变压电路的第二端连接；a first insulated cable corresponding to the first interlayer power supply circuit of the n insulated cables is connected to a second end of the high voltage isolation transformer circuit;
所述n个绝缘电缆中与所述第i个层间供能电路对应的第i个绝缘电缆与所述第i-1个层间隔离变压器的第二端连接；An ith insulated cable corresponding to the ith interlayer power supply circuit of the n insulated cables is connected to a second end of the ith-1th interlayer isolation transformer;
所述m个穿心CT，用于接收所述高压隔离变压电路和所述n个层间隔离变压器中的至少一个发送的所述高电位交流电压，并将所述高电位交流电压转化为第一电位交流电压；The m core CTs are configured to receive the high-potential AC voltage sent by at least one of the high-voltage isolation transformer circuit and the n interlayer isolation transformers, and convert the high-potential AC voltage into First potential alternating voltage;
所述m个整流稳压电路，用于接收所述m个穿心CT发送的所述第一电位交流电压，并将所述第一电位交流电压转化成所述稳压直流电压；The m rectifier voltage stabilizing circuits are configured to receive the first potential AC voltage sent by the m core CTs, and convert the first potential AC voltage into the regulated DC voltage;
所述m个驱动电路，用于接收所述m个整流稳压电路发送的所述稳压直流电压，并利用所述稳压直流电压来提供电能。The m driving circuits are configured to receive the regulated DC voltage sent by the m rectifier voltage stabilizing circuits, and use the regulated DC voltage to provide power.
在上述系统中，所述n个层间供能电路还包括：与所述n个绝缘电缆和所述n个层间隔离变压器连接的n个故障控制电路；In the above system, the n interlayer power supply circuits further include: n fault control circuits connected to the n insulated cables and the n interlayer isolation transformers;
所述n个故障控制电路，用于将所述n个绝缘电缆上的所述高电位交流电压对应的当前电流值与预设阈值进行判断，并根据判断结果接收所述高电位交流电压。The n fault control circuits are configured to determine a current current value corresponding to the high-potential AC voltage on the n insulated cables and a preset threshold, and receive the high-potential AC voltage according to the determination result.
在上述系统中，所述n个故障控制电路中的任意一个故障控制电路包括：电流检测 单元、与所述电流检测单元连接的m个阻抗匹配单元和控制单元，所述m个阻抗匹配单元与所述控制单元连接；In the above system, any one of the n fault control circuits includes: a current detecting unit, m impedance matching units and a control unit connected to the current detecting unit, and the m impedance matching units and The control unit is connected;
所述电流检测单元，用于接收所述任意一个故障控制电路对应的绝缘电缆中的当前电流值，将所述当前电流值与预设阈值进行比较，在所述当前电流值大于所述预设阈值时发送第一启动指令至所述控制单元；The current detecting unit is configured to receive a current current value in the insulated cable corresponding to any one of the fault control circuits, and compare the current current value with a preset threshold, where the current current value is greater than the preset Sending a first start command to the control unit when thresholding;
所述控制单元，用于接收所述电流检测单元发送的第一启动指令，并根据所述第一启动指令启动所述m个阻抗匹配单元；The control unit is configured to receive a first start command sent by the current detecting unit, and start the m impedance matching units according to the first start command;
所述m个阻抗匹配单元，用于将所述当前电流值转化为预设电流值。The m impedance matching units are configured to convert the current current value into a preset current value.
在上述系统中，所述n个阻抗匹配单元由n个第一电容、n个电感、n个第一电阻和n个开关组成，其中，所述n个第一电容中的第一个第一电容的第一端与所述电流检测单元、所述n个第一电阻中的第一个第一电阻的第一端和所述n个开关中的第一个开关的第一端连接，所述第一个第一电容的第二端与所述n个电感中的第一个电感的第一端连接，所述第一个电感的第二端与所述第一个第一电阻的第二端、所述第一个开关的第二端、第i个第一电容的第一端、第i个第一电阻的第一端和第i个开关的第一端连接，所述第i个第一电容的第二端与第i个电感的第一端连接，所述第i个电感的第二端与所述第i个开关的第二端、所述第i个第一电阻的第二端和所述第i+1个第一电容的第一端、第i+1个第一电阻的第一端和第i+1个开关的第一端连接，所述n个开关的第一端与所述控制单元连接。In the above system, the n impedance matching units are composed of n first capacitors, n inductors, n first resistors, and n switches, wherein the first one of the n first capacitors is first a first end of the capacitor is coupled to the current detecting unit, a first end of the first one of the n first resistors, and a first end of the first one of the n switches, a second end of the first first capacitor is coupled to a first end of the first one of the n inductors, a second end of the first inductor and a first one of the first first resistor a second end, a second end of the first switch, a first end of the ith first capacitor, a first end of the ith first resistor, and a first end of the ith switch, the ith The second end of the first capacitor is connected to the first end of the ith inductor, the second end of the ith inductor is opposite to the second end of the ith switch, and the ith first resistor The second end is connected to the first end of the i+1th first capacitor, the first end of the i+1th first resistor, and the first end of the i+1th switch, where the n switches First end and said control Yuan connections.
在上述系统中，所述n个电压均衡电路由n个第二电容和n个第二电阻组成，所述n个第二电容的第一端与所述n个第二电阻的第一端和所述n个第一变压器的第一端连接，所述n个第二电容的第二端与所述n个第二电阻的第二端和所述n个第一变压器的第二端连接。In the above system, the n voltage equalization circuits are composed of n second capacitors and n second resistors, and the first ends of the n second capacitors and the first ends of the n second resistors The first ends of the n first transformers are connected, and the second ends of the n second capacitors are connected to the second ends of the n second resistors and the second ends of the n first transformers.
在上述系统中，所述高压隔离变压电路的第二端、所述n个层间隔离变压器的第二端有三个连接头；其中，In the above system, the second end of the high voltage isolation transformer circuit and the second end of the n interlayer isolation transformers have three connectors;
所述第一个层间供能电路的第一端和第二端与所述高压隔离变压电路第二端的第一连接头和第二连接头连接，所述第一个层间隔离变压器第一端的第一连接头和第二连接头与所述高压隔离变压电路第二端的第二连接头和第三连接头连接，所述第i个层间供能电路的第一连接头和第二连接头与所述第i-1个层间隔离变压器第二端的第一连接头和第二连接头层间隔离变压器连接，所述第i个层间隔离变压器第一端的第一连接头和第二连接头与所述第i-1个层间隔离变压器第二端的第二连接头和第三连接头连接。The first end and the second end of the first interlayer power supply circuit are connected to the first connector and the second connector of the second end of the high voltage isolation transformer circuit, the first interlayer isolation transformer a first connector and a second connector at one end are connected to the second connector and the third connector of the second end of the high voltage isolation transformer circuit, the first connector of the i-th interlayer power supply circuit and a second connector is connected to the first connector and the second connector isolation transformer of the second end of the i-1th interlayer isolation transformer, and the first connection of the first end of the i-th interlayer isolation transformer The head and the second connector are connected to the second connector and the third connector of the second end of the i-1th interlayer isolation transformer.
本发明实施例提供一种供能方法，所述方法包括：An embodiment of the present invention provides an energy supply method, where the method includes:
低电位电源生成低电位交流电压，并发送至高压隔离变压器；The low potential power source generates a low potential AC voltage and sends it to the high voltage isolation transformer;
所述高压隔离变压器将所述低电位交流电压转化成高电位交流电压，并将所述高电位交流电压发送至n个层间供能电路中的第一个层间供能电路和n个层间隔离变压器中的第一个层间隔离变压器，以供所述n个层间供能电路对应的n层驱动电路工作，n大于或等于1。The high voltage isolation transformer converts the low potential alternating voltage into a high potential alternating voltage, and sends the high potential alternating voltage to a first interlayer energizing circuit and n layers of n interlayer energizing circuits The first interlayer isolation transformer in the isolation transformer is operated for the n-layer driving circuit corresponding to the n interlayer energy supply circuits, and n is greater than or equal to 1.
在上述方法中，所述将所述高电位交流电压发送至n个层间供能电路中的第一个层间供能电路和n个层间隔离变压器中的第一个层间隔离变压器之后，所述方法还包括：In the above method, the transmitting the high-potential AC voltage to the first interlayer power supply circuit of the n interlayer power supply circuits and the first interlayer isolation transformer of the n interlayer isolation transformers The method further includes:
第一个层间隔离变压器接收到所述高电位交流电压之后，将所述高电位交流电压发送至第i个层间供能电路和第i个层间隔离变压器，i大于1，小于或等于n；After receiving the high-potential AC voltage, the first interlayer isolation transformer sends the high-potential AC voltage to the ith interlayer power supply circuit and the ith interlayer isolation transformer, where i is greater than 1, less than or equal to n;
第i个层间隔离变压器将所述高电位交流电压发送至第i+1个层间隔离变压器和第i+1个层间供能电路，以供所述第i+1个层间供能电路为对应的第i+1层驱动电路工作；The i-th interlayer isolation transformer sends the high-potential AC voltage to the (i+1)th interlayer isolation transformer and the i+1th interlayer energy supply circuit for supplying energy to the (i+1)th layer The circuit operates for the corresponding i+1th layer driving circuit;
第i个层间供能电路接收到所述高电位交流电压之后，将所述高电位电压转换成稳压直流电压，以供所述第i层驱动电路工作。After receiving the high-potential AC voltage, the i-th interlayer power supply circuit converts the high-potential voltage into a regulated DC voltage for the operation of the ith layer driving circuit.
在上述方法中，所述将所述高电位电压转换成稳压直流电压之后，所述方法还包括：In the above method, after the converting the high potential voltage into a regulated DC voltage, the method further includes:
获取所述第n个层间供能电路对应的当前电流值；Obtaining a current current value corresponding to the nth interlayer energy supply circuit;
将所述当前电流值与预设阈值进行比较；Comparing the current current value with a preset threshold;
当所述当前电流值大于所述预设阈值时，启动备用电路。The standby circuit is activated when the current current value is greater than the predetermined threshold.
本发明实施例提供了一种供能系统及方法，通过高压隔离变压电路；与高压隔离变压电路的第一端连接的低电位电源；与高压隔离变压电路的第二端连接的n个层间供能电路和n个层间隔离变压器，n大于等于1；其中，低电位电源，用于向高压隔离变压电路发送低电位交流电压；高压隔离变压电路，用于接收低电位交流电压，并将低电位交流电压转化成高电位交流电压，发送至n个层间供能电路中的第一个层间供能电路和n个层间隔离变压器中的第一个层间隔离变压器；n个层间供能电路中的第i个层间供能电路，用于接收第i-1个层间隔离变压器发送的高电位交流电压，并将高电位交流电压转化为稳压直流电压，i大于1；n个层间隔离变压器中的第i个层间隔离变压器，用于接收第i-1个层间隔离变压器发送的高电位交流电压，并将高电位交流电压发送至第i+1个层间隔离变压器和第i+1个层间供能电路。采用上述技术实现方案，将驱动电路分成了n层，由n个层间供能电路为各层的驱动电路提供电压，每个层间供能电路对应一条绝缘电缆，减少了绝缘电缆上的驱动电路的个数，从而降低了绝缘电缆承载的电压；高压隔离变压器为整个供能系统提供高电位交流电压，再由n个层间供能电路，将高电位交流电压转化为稳压直流电压，为每一层驱动电路工作，从而减少了高电位功能系统的变压器数量。Embodiments of the present invention provide an energy supply system and method, through a high voltage isolation transformer circuit; a low potential power supply connected to the first end of the high voltage isolation transformer circuit; and a second terminal connected to the high voltage isolation transformer circuit An interlayer power supply circuit and n interlayer isolation transformers, n is greater than or equal to 1; wherein, the low potential power supply is used to send a low potential alternating voltage to the high voltage isolation transformer circuit; the high voltage isolation transformer circuit is used to receive the low potential AC voltage, and convert low-potential AC voltage into high-potential AC voltage, sent to the first interlayer energy supply circuit of the n interlayer energy supply circuits and the first interlayer isolation of the n interlayer isolation transformers Transformer; the i-th interlayer supply circuit in the n interlayer energy supply circuits, for receiving the high-potential AC voltage sent by the i-1th interlayer isolation transformer, and converting the high-potential AC voltage into a regulated DC Voltage, i is greater than 1; the ith interlayer isolation transformer in the n interlayer isolation transformers is used to receive the high potential AC voltage sent by the i-1th interlayer isolation transformer, and send the high potential AC voltage to the first i+1 Between the transformer and the isolation between the i + 1 layers energizing circuit. The above technical implementation scheme divides the driving circuit into n layers, and the n interlayer energy supply circuits supply voltages to the driving circuits of the respective layers, and each interlayer energy supply circuit corresponds to one insulated cable, thereby reducing the driving on the insulated cable. The number of circuits, thereby reducing the voltage carried by the insulated cable; the high-voltage isolation transformer provides a high-potential AC voltage for the entire energy-supply system, and then the n-level energy supply circuit converts the high-potential AC voltage into a regulated DC voltage. The operation of each layer of the drive circuit reduces the number of transformers in the high potential function system.
附图说明DRAWINGS
图1为现有技术中为高电位驱动设备供电的结构示意图一；1 is a schematic structural diagram 1 of a prior art for supplying power to a high-potential driving device;
图2为现有技术中为高电位驱动设备供电的结构示意图二；2 is a schematic structural view 2 of a prior art for supplying power to a high-potential driving device;
图3为本发明实施例提供的一种供能系统的结构示意框图一；3 is a schematic block diagram 1 of a power supply system according to an embodiment of the present invention;
图4为本发明实施例提供的一种供能系统的结构示意框图二；4 is a schematic block diagram 2 of a power supply system according to an embodiment of the present invention;
图5为本发明实施例提供的一种供能系统的结构示意框图三；FIG. 5 is a schematic block diagram 3 of a structure of an energy supply system according to an embodiment of the present disclosure;
图6为本发明实施例提供的一种层间供能电路的电路示意图；FIG. 6 is a schematic circuit diagram of an interlayer power supply circuit according to an embodiment of the present invention;
图7为本发明实施例提供的一种故障控制单元的电路示意图；FIG. 7 is a schematic circuit diagram of a fault control unit according to an embodiment of the present invention;
图8为本发明实施例提供的一种阻抗匹配单元的电路示意图；FIG. 8 is a schematic circuit diagram of an impedance matching unit according to an embodiment of the present invention;
图9为本发明实施例提供的一种电压均衡单元的电路示意图；FIG. 9 is a schematic circuit diagram of a voltage equalization unit according to an embodiment of the present invention;
图10为本发明实施例提供的一种高压隔离变压器分别供能的电路示意图；10 is a schematic circuit diagram of power supply of a high voltage isolation transformer according to an embodiment of the present invention;
图11为本发明实施例提供的一种两套供能电路同时作用的电路示意图；FIG. 11 is a schematic diagram of a circuit for simultaneously applying two sets of power supply circuits according to an embodiment of the present invention; FIG.
图12为本发明实施例提供的一种供能方法的流程图。FIG. 12 is a flowchart of an energy supply method according to an embodiment of the present invention.
具体实施方式detailed description
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings.
实施例一 Embodiment 1
本发明实施例提供一种供能系统1，如图3所示，该系统1可以包括：An embodiment of the present invention provides an energy supply system 1. As shown in FIG. 3, the system 1 may include:
高压隔离变压电路10；High voltage isolation transformer circuit 10;
与所述高压隔离变压电路10的第一端连接的低电位电源11；a low potential power source 11 connected to the first end of the high voltage isolation transformer circuit 10;
与所述高压隔离变压电路10的第二端连接的n个层间供能电路12和n个层间隔离变压器13，n大于等于1；其中，n interlayer power supply circuits 12 and n interlayer isolation transformers 13 connected to the second end of the high voltage isolation transformer circuit 10, n is greater than or equal to 1;
所述低电位电源11，用于向高压隔离变压电路10发送低电位交流电压；The low potential power source 11 is configured to send a low potential alternating current voltage to the high voltage isolation transformer circuit 10;
所述高压隔离变压电路10，用于接收所述低电位交流电压，并将所述低电位交流电压转化成高电位交流电压，发送至所述n个层间供能电路12中的第一个层间供能电路12和所述n个层间隔离变压器13中的第一个层间隔离变压器13；The high voltage isolation transformer circuit 10 is configured to receive the low potential alternating voltage and convert the low potential alternating voltage into a high potential alternating voltage and send the first to the n interlayer energizing circuits 12 An interlayer power supply circuit 12 and a first interlayer isolation transformer 13 of the n interlayer isolation transformers 13;
所述n个层间供能电路12中的第i个层间供能电路13，用于接收第i-1个层间隔离变压器13发送的所述高电位交流电压，并将所述高电位交流电压转化为稳压直流电压，i大于1；The i-th interlayer power supply circuit 13 of the n interlayer power supply circuits 12 is configured to receive the high-potential AC voltage sent by the i-1th interlayer isolation transformer 13, and the high potential The AC voltage is converted to a regulated DC voltage, i is greater than 1;
所述n个层间隔离变压器13中的第i个层间隔离变压器13，用于接收所述第i-1个层间隔离变压器13发送的所述高电位交流电压，并将所述高电位交流电压发送至第i+1个层间隔离变压器13和第i+1个层间供能电路12。The i-th interlayer isolation transformer 13 of the n interlayer isolation transformers 13 is configured to receive the high-potential AC voltage sent by the ith-1th interlayer isolation transformer 13, and the high potential The AC voltage is sent to the i+1th interlayer isolation transformer 13 and the i+1th interlayer energy supply circuit 12.
本发明实施例提供的一种供能系统适用于使用低电位交流电压为高电位的驱动电路提供电能的场景下。An energy supply system provided by an embodiment of the present invention is suitable for use in a scenario in which a low-potential AC voltage is used to provide power to a driving circuit having a high potential.
本发明实施例中，低电位电源提供的电压是低电位交流电压。In the embodiment of the invention, the voltage provided by the low potential power source is a low potential alternating voltage.
本发明实施例中，高压隔离变压器10将低电位交流电压转化成高电位交流电压，向第一个层间供能电路12和第一个层间隔离变压器13发送高电位交流电压，第一个层间隔离变压器13为第i个层间供能电路12提供高电位交流电压，并将高电位交流电压发送至第i个层间隔离变压器13，以供第i个层间隔离变压器13为第i+1个层间供能电路12提供高电位交流电压，并将高电位交流电压发送至第i+1个层间隔离变压器13，以此类推，高压隔离变压器10通过和n个层间隔离变压器13为n个层间供能电路提供高电位交流电压。In the embodiment of the present invention, the high voltage isolation transformer 10 converts the low potential AC voltage into a high potential AC voltage, and sends a high potential AC voltage to the first interlayer energy supply circuit 12 and the first interlayer isolation transformer 13, the first The interlayer isolation transformer 13 supplies a high potential alternating current voltage to the i-th interlayer energy supply circuit 12, and transmits the high potential alternating current voltage to the i-th interlayer isolation transformer 13 for the i-th interlayer isolation transformer 13 The i+1 inter-layer energizing circuit 12 supplies a high-potential AC voltage, and transmits the high-potential AC voltage to the i+1th interlayer isolation transformer 13, and so on, and the high-voltage isolation transformer 10 is isolated from the n layers. The transformer 13 supplies a high potential alternating voltage to the n interlayer energizing circuits.
本发明实施例中，层间隔离变压器13进行的是对高电位和低电位的电压进行隔离的过程，不更改高电位交流电压的电压值。In the embodiment of the present invention, the interlayer isolation transformer 13 performs a process of isolating the high potential and the low potential voltage, and does not change the voltage value of the high potential alternating voltage.
本发明实施例中，高压隔离变压电路10的输入端连接低电位电源，高压隔离变压电路10的输出端分别连接n个层间供能电路12中的第一个层间供能电路12和n个层间隔离变压器13中的第一个层间隔离变压器13的输入端，第一个层间隔离变压器13的输出端连接第i个层间供能电路12和第i个层间隔离变压器13的输入端，以此类推，通过n个层间隔离变压器13将n个层间供能电路12并联起来。In the embodiment of the present invention, the input end of the high voltage isolation transformer circuit 10 is connected to a low potential power source, and the output end of the high voltage isolation transformer circuit 10 is respectively connected to the first interlayer power supply circuit 12 of the n interlayer power supply circuits 12. And the input of the first interlayer isolation transformer 13 of the n interlayer isolation transformers 13, the output of the first interlayer isolation transformer 13 is connected to the i-th interlayer energy supply circuit 12 and the i-th interlayer isolation The input terminals of the transformer 13, and so on, connect the n interlayer energizing circuits 12 in parallel through n interlayer isolation transformers 13.
可选的，如图4所示，所述高压隔离变压电路10第一端的第一连接头和第二连接头与所述低电位电源11的第一连接头和第二连接头连接，所述高压隔离变压电路10第二端的第一连接头与第二连接头与所述第一个层间隔离变压器13第一端的第一连接头和第二连接头、所述第一个层间供能电路12的第一连接头和第二连接头连接，所述第一个层间隔离变压器13第二端的第一连接头和第二连接头与所述第i个层间隔离变压器13第一端的第一 连接头和第二连接头、所述第i个层间供能电路12的第一连接头和第二连接头连接，所述第i个层间隔离变压器13第二端的第一连接头和第二连接头与所述第i+1个层间隔离变压器13第一端的第一连接头和第二连接头、第i+1个层间供能电路12的第一连接头和第二连接头连接；Optionally, as shown in FIG. 4, the first connector and the second connector of the first end of the high voltage isolation transformer circuit 10 are connected to the first connector and the second connector of the low potential power source 11 . a first connector and a second connector of the first end of the second end of the high voltage isolation transformer circuit 10 and the first connector and the first end of the first interlayer isolation transformer 13 The first connector and the second connector of the interlayer power supply circuit 12 are connected, and the first connector and the second connector of the second end of the first interlayer isolation transformer 13 and the ith interlayer isolation transformer The first connector and the second connector of the first end, the first connector and the second connector of the ith interlayer power supply circuit 12 are connected, and the ith interlayer isolation transformer 13 is second. The first connector and the second connector of the terminal and the first connector and the second connector of the first end of the i+1th interlayer isolation transformer 13 and the i+1th interlayer power supply circuit 12 a connector and a second connector are connected;
所述n个层间隔离变压器13中的第一个层间隔离变压器13，用于接收所述高压隔离变压电路10发送的所述高电位交流电压，并将所述高电位电压发送至所述第i个层间隔离变压器13。The first interlayer isolation transformer 13 of the n interlayer isolation transformers 13 is configured to receive the high-potential AC voltage sent by the high-voltage isolation transformer circuit 10, and send the high-potential voltage to the The i-th interlayer isolation transformer 13 is described.
可选的，如图5所示，所述高压隔离变压电路10包括：与低电位电源11连接的n个第一变压器100、与所述n个第一变压器100连接的n个电压均衡电路101；Optionally, as shown in FIG. 5, the high voltage isolation transformer circuit 10 includes: n first transformers 100 connected to the low potential power source 11 and n voltage equalization circuits connected to the n first transformers 100. 101;
所述n个第一变压器100，用于将所述低电位交流电压转化为所述高电位交流电压；The n first transformers 100 are configured to convert the low potential alternating current voltage into the high potential alternating current voltage;
所述n个电压均衡电路101，用于将与所述n个电压均衡电路101对应的n个第一变压器100的第一电压转化为预设电压。The n voltage equalization circuits 101 are configured to convert the first voltages of the n first transformers 100 corresponding to the n voltage equalization circuits 101 into preset voltages.
本发明实施例中，高压隔离变压电路10由n个第一变压器100和n个第一变压器100对应的n个电压均衡电路101组成，其中，第一个第一变压器100的输入端与低电位电源11连接，第一个第一变压器100的输出端与第i个第一变压器100的输入端连接，依次类推，第n个第一变压器100的输出端与第一个层间隔离变压器13的第一端和第一个层间供能电路12的第一端进行连接。In the embodiment of the present invention, the high voltage isolation transformer circuit 10 is composed of n first transformers 100 and n voltage equalization circuits 101 corresponding to the n first transformers 100, wherein the input end of the first first transformer 100 is low. The potential power source 11 is connected, the output end of the first first transformer 100 is connected to the input end of the ith first transformer 100, and so on, the output end of the nth first transformer 100 and the first interlayer isolation transformer 13 The first end is connected to the first end of the first interlayer energizing circuit 12.
本发明实施例中，n个第一变压器100的输入端与n个电压均衡电路101的第一端连接，n个第一变压器100的输出端与n个电压均衡电路101的第二端连接。In the embodiment of the present invention, the input ends of the n first transformers 100 are connected to the first ends of the n voltage equalization circuits 101, and the output ends of the n first transformers 100 are connected to the second ends of the n voltage equalization circuits 101.
可选的，如图6所示，所述n个层间供能电路12包括：n个绝缘电缆120、与所述n个绝缘电缆120中的任意一个连接的m个穿心电流互感器CT121、与所述m个穿心CT121连接的m个整流稳压电路122和与所述m个整流稳压电路122连接的m个驱动电路123；Optionally, as shown in FIG. 6, the n interlayer power supply circuits 12 include: n insulated cables 120, and m through-current current transformers CT121 connected to any one of the n insulated cables 120. M rectifier voltage regulator circuits 122 connected to the m core CT121 and m drive circuits 123 connected to the m rectifier voltage regulator circuits 122;
所述n个绝缘电缆120中与所述第一个层间供能电路12对应的第一个绝缘电缆120与所述高压隔离变压电路10的第二端连接；A first insulated cable 120 corresponding to the first interlayer power supply circuit 12 of the n insulated cables 120 is connected to a second end of the high voltage isolation transformer circuit 10;
所述n个绝缘电缆120中与所述第i个层间供能电路12对应的第i个绝缘电缆120与所述第i-1个层间隔离变压器13的第二端连接；An ith insulated cable 120 corresponding to the ith interlayer power supply circuit 12 of the n insulated cables 120 is connected to a second end of the ith-1th interlayer isolation transformer 13;
所述m个穿心CT121，用于接收所述高压隔离变压电路10和所述n个层间隔离变压器13中的至少一个发送的所述高电位交流电压，并将所述高电位交流电压转化为第一电位交流电压；The m core CTs 121 are configured to receive the high-potential AC voltage sent by at least one of the high-voltage isolation transformer circuit 10 and the n interlayer isolation transformers 13, and the high-potential AC voltage Converted to a first potential alternating voltage;
所述m个整流稳压电路122，用于接收所述m个穿心CT121发送的所述第一电位交流电压，并将所述第一电位交流电压转化成所述稳压直流电压；The m rectifier voltage regulator circuits 122 are configured to receive the first potential AC voltage sent by the m core CTs 121, and convert the first potential AC voltage into the regulated DC voltage;
所述m个驱动电路123，用于接收所述m个整流稳压电路122发送的所述稳压直流电压，并利用所述稳压直流电压来提供电能。The m driving circuits 123 are configured to receive the regulated DC voltage sent by the m rectifying and regulating circuits 122, and provide the electric energy by using the regulated DC voltage.
本发明实施例中，一个驱动电路124对应一个整流稳压电路122和一个穿心CT121。In the embodiment of the present invention, one driving circuit 124 corresponds to one rectifying and regulating circuit 122 and one through-core CT121.
可选的，如图7所示，所述n个层间供能电路12还包括：与所述n个绝缘电缆120和所述n个层间隔离变压器13连接的n个故障控制电路124；Optionally, as shown in FIG. 7, the n interlayer power supply circuits 12 further include: n fault control circuits 124 connected to the n insulated cables 120 and the n interlayer isolation transformers 13;
所述n个故障控制电路124，用于将所述n个绝缘电缆120上的所述高电位交流电压对应的当前电流值与预设阈值进行判断，并根据判断结果接收所述高电位交流电压。The n fault control circuits 124 are configured to determine a current current value corresponding to the high-potential AC voltage on the n insulated cables 120 and a preset threshold, and receive the high-potential AC voltage according to the determination result. .
示例性的，当输入电压为500kV时，将驱动电路123分5层上下布置，每层100kV，每层由约50只驱动电路123串联，则穿心CT121和整流稳压单元122数量与器件一致。高压隔离变压器10可由5个100kV中压变压器100串联，串联后可放置于充满SF6气体或绝缘油的绝缘套管内。层间隔离变压器13电压和绝缘电缆120均为100kV，降低了对设备的绝缘水平要求，Exemplarily, when the input voltage is 500 kV, the driving circuit 123 is arranged in five layers up and down, each layer is 100 kV, and each layer is connected in series by about 50 driving circuits 123, and the number of the through-core CT121 and the rectifying and regulating unit 122 is consistent with the device. . The high voltage isolation transformer 10 can be connected in series by five 100 kV medium voltage transformers 100, and can be placed in an insulating sleeve filled with SF6 gas or insulating oil in series. The interlayer isolation transformer 13 voltage and insulated cable 120 are both 100kV, which reduces the insulation level requirements of the equipment.
可选的，所述n个故障控制电路124中的任意一个故障控制电路124包括：电流检测单元1240、与所述电流检测单元1240连接的m个阻抗匹配单元1241和控制单元1242，所述m个阻抗匹配单元1241与所述控制单元1242连接；Optionally, any one of the n fault control circuits 124 includes: a current detecting unit 1240, m impedance matching units 1241 connected to the current detecting unit 1240, and a control unit 1242, where the m The impedance matching unit 1241 is connected to the control unit 1242;
所述电流检测单元1240，用于接收所述任意一个故障控制电路124对应的绝缘电缆120中的当前电流值，将所述当前电流值与预设阈值进行比较，在所述当前电流值大于所述预设阈值时发送第一启动指令至所述控制单元；The current detecting unit 1240 is configured to receive a current current value in the insulated cable 120 corresponding to the any one of the fault control circuits 124, and compare the current current value with a preset threshold, where the current current value is greater than Sending a first start command to the control unit when the threshold is preset;
所述控制单元1242，用于接收所述电流检测单元发送的第一启动指令，并根据所述第一启动指令启动所述m个阻抗匹配单元1241；The control unit 1242 is configured to receive a first start command sent by the current detecting unit, and start the m impedance matching units 1241 according to the first start command;
所述m个阻抗匹配单元1241，用于将所述当前电流值转化为预设电流值。The m impedance matching units 1241 are configured to convert the current current value into a preset current value.
可以理解的是，绝缘电缆120中的电流与驱动电路123的个数呈线性关系，当一个驱动电路123发生故障时，会导致绝缘电缆120回路等效阻抗降低，感应电流增大，使得正常器件的穿心CT121输出电压过高，引起正常级的整流稳压单元过压故障，导致故障扩大化。而增加了故障控制电路124之后，故障控制电路124在检测到驱动电路123发生故障时，启动指定数量的阻抗匹配单元1241，就可以平衡绝缘电缆上的敷在数量，提高了供能系统1的可靠性。It can be understood that the current in the insulated cable 120 is linear with the number of the driving circuit 123. When a driving circuit 123 fails, the equivalent impedance of the insulated cable 120 is reduced, and the induced current is increased, so that the normal device is made. The output voltage of the CT121 is too high, causing an overvoltage fault of the normal-level rectifier voltage regulator unit, resulting in a fault amplification. After the fault control circuit 124 is added, when the fault control circuit 124 detects that the drive circuit 123 is faulty, the specified number of impedance matching units 1241 are activated, and the amount of the applied on the insulated cable can be balanced, and the power supply system 1 is improved. reliability.
可选的，如图8所示，所述n个阻抗匹配单元1241由n个第一电容12410、n个电感12411、n个第一电阻12412和n个开关12413组成，其中，所述n个第一电容12410中的第一个第一电容12410的第一端与所述电流检测单元1240、所述n个第一电阻12412中的第一个第一电阻12412的第一端和所述n个开关中的第一个开关12413的第一端连接，所述第一个第一电容12410的第二端与所述n个电感12411中的第一个电感12411的第一端连接，所述第一个电感12411的第二端与所述第一个第一电阻12412的第二端、所述第一个开关12413的第二端、第i个第一电容12410的第一端、第i个第一电阻12412的第一端和第i个开关12413的第一端连接，所述第i个第一电容的第二端与第i个电感12411的第一端连接，所述第i个电感12411的第二端与所述第i个开关12413的第二端、所述第i个第一电阻的第二端和所述第i+1个第一电容12410的第一端、第i+1个第一电阻12412的第一端和第i+1个开关12413的第一端连接，所述n个开关的第一端与所述控制单元1242连接。Optionally, as shown in FIG. 8 , the n impedance matching units 1241 are composed of n first capacitors 12410 , n inductors 12411 , n first resistors 12412 , and n switches 12413 , where the n a first end of the first first capacitor 12410 of the first capacitor 12410 and the current detecting unit 1240, the first end of the first one of the n first resistors 12412 and the first end The first end of the first switch 12413 is connected, and the second end of the first first capacitor 12410 is connected to the first end of the first one of the n inductors 12411, the The second end of the first inductor 12411 and the second end of the first first resistor 12412, the second end of the first switch 12413, the first end of the ith first capacitor 12410, the ith The first end of the first resistor 12412 is connected to the first end of the ith switch 12413, and the second end of the ith first capacitor is connected to the first end of the ith inductor 12411, the ith a second end of the inductor 12411 and a second end of the i-th switch 12413, a second end of the i-th first resistor, and a first one of the (i+1)th first capacitor 12410 The first end of the i+1th first resistor 12412 is connected to the first end of the i+1th switch 12413, and the first end of the n switches is connected to the control unit 1242.
可选的，如图9所示，所述n个电压均衡电路101由n个第二电容1010和n个第二电阻1011组成，所述n个第二电容1010的第一端与所述n个第二电阻1011的第一端和所述n个第一变压器100的第一端连接，所述n个第二电容1010的第二端与所述n个第二电阻1011的第二端和所述n个第一变压器100的第二端连接。Optionally, as shown in FIG. 9, the n voltage equalization circuits 101 are composed of n second capacitors 1010 and n second resistors 1011, and the first ends of the n second capacitors 1010 and the n The first ends of the second resistors 1011 are connected to the first ends of the n first transformers 100, and the second ends of the n second capacitors 1010 and the second ends of the n second resistors 1011 are The second ends of the n first transformers 100 are connected.
可选的，如图10所示，所述高压隔离变压电路10的第二端、所述n个层间隔离变压器13的第二端有三个连接头；其中，所述第一个层间供能电路12的第一端和第二端与所述高压隔离变压电路10第二端的第一连接头和第二连接头连接，所述第一个层间隔离变压器13第一端的第一连接头和第二连接头与所述高压隔离变压电路10第二端的第二连接头和第三连接头连接，所述第i个层间供能电路12的第一连接头和第二连接头与所述第i-1个层 间隔离变压器13第二端的第一连接头和第二连接头层间隔离变压器13连接，所述第i个层间隔离变压器13第一端的第一连接头和第二连接头与所述第i-1个层间隔离变压器13第二端的第二连接头和第三连接头连接。Optionally, as shown in FIG. 10, the second end of the high voltage isolation transformer circuit 10 and the second end of the n interlayer isolation transformers 13 have three connectors; wherein the first layer is The first end and the second end of the power supply circuit 12 are connected to the first connector and the second connector of the second end of the high voltage isolation transformer circuit 10, and the first end of the first interlayer isolation transformer 13 A connector and a second connector are connected to the second connector and the third connector of the second end of the high voltage isolation transformer circuit 10, and the first connector and the second connector of the i-th interlayer power supply circuit 12 The connector is connected to the first connector of the second end of the i-1th interlayer isolation transformer 13 and the isolation transformer 13 of the second connector, and the first end of the first end of the i-th interlayer isolation transformer 13 The connector and the second connector are connected to the second connector and the third connector of the second end of the i-1th interlayer isolation transformer 13.
可以理解的是，高压隔离变压电路10为层间供能电路12和层间隔离变压器13提供不同的电压，在实际操作时，对绝缘电缆120和层间隔离变压器13的规格要求降低，更加有利于具体的实施。It can be understood that the high voltage isolation transformer circuit 10 provides different voltages for the interlayer energy supply circuit 12 and the interlayer isolation transformer 13, and in actual operation, the specifications of the insulated cable 120 and the interlayer isolation transformer 13 are reduced, and Conducive to specific implementation.
进一步地，如图11所示，n个层间供能电路12对应2n个绝缘电缆120，也就是说，每一个层间供能电路12对应两条绝缘电缆120，两条绝缘电缆分别与响应的故障控制单元124、高压隔离变压电路10、低电位电源11和层间隔离变压器13进行连接，因此，层间供能电路12由两套供能系统为其提供能量，当其中的一套供能系统1掉电后，另一套供能系统1能够正常持续提供电能，增强了供电系统1供电的可靠性。Further, as shown in FIG. 11, the n interlayer power supply circuits 12 correspond to 2n insulated cables 120, that is, each of the interlayer power supply circuits 12 corresponds to two insulated cables 120, and the two insulated cables are respectively responsive. The fault control unit 124, the high voltage isolation transformer circuit 10, the low potential power source 11 and the interlayer isolation transformer 13 are connected. Therefore, the interlayer power supply circuit 12 is powered by two energy supply systems, one of which is set. After the power supply system 1 is powered off, the other energy supply system 1 can continuously provide power, which enhances the reliability of the power supply system 1 power supply.
实施例二Embodiment 2
基于实施例一提供的一种供能系统，本发明实施例提供了一种供能系统对应的供能方法，如图12所示，该方法可以包括：An energy supply system according to the first embodiment is provided. The embodiment of the present invention provides a power supply method corresponding to the energy supply system. As shown in FIG. 12, the method may include:
S101、低电位电源生成低电位交流电压，并发送至高压隔离变压器。S101. The low potential power source generates a low potential AC voltage and sends it to the high voltage isolation transformer.
S102、高压隔离变压器将低电位交流电压转化成高电位交流电压，并将高电位交流电压发送至n个层间供能电路中的第一个层间供能电路和n个层间隔离变压器中的第一个层间隔离变压器，以供n个层间供能电路对应的n层驱动电路工作，n大于或等于1。S102, the high-voltage isolation transformer converts the low-potential AC voltage into a high-potential AC voltage, and sends the high-potential AC voltage to the first interlayer energizing circuit and the n interlayer isolation transformers of the n interlayer energizing circuits The first interlayer isolation transformer operates for n-layer drive circuits corresponding to n interlayer energizing circuits, n being greater than or equal to one.
S103、第一个层间隔离变压器接收到高电位交流电压之后，将高电位交流电压发送至第i个层间供能电路和第i个层间隔离变压器，i大于1，小于或等于n。S103. After receiving the high-potential AC voltage, the first interlayer isolation transformer sends the high-potential AC voltage to the ith interlayer power supply circuit and the ith interlayer isolation transformer, where i is greater than 1, less than or equal to n.
S104、第i个层间隔离变压器将高电位交流电压发送至第i+1个层间隔离变压器和第i+1个层间供能电路，以供第i+1个层间供能电路为对应的第i+1层驱动电路工作。S104. The i-th interlayer isolation transformer sends the high-potential AC voltage to the i+1th interlayer isolation transformer and the i+1th interlayer energy supply circuit, so that the i+1th interlayer energy supply circuit is The corresponding i+1th layer driving circuit works.
S105、第i个层间供能电路接收到高电位交流电压之后，将高电位电压转换成稳压直流电压，以供第i层驱动电路工作。S105: After receiving the high-potential AC voltage, the i-th interlayer energy supply circuit converts the high-potential voltage into a regulated DC voltage for the operation of the i-th layer driving circuit.
S106、第n层故障检测单元获取第n个层间供能电路对应的当前电流值。S106. The nth layer fault detecting unit acquires a current current value corresponding to the nth interlayer energy supply circuit.
S107、第n层故障检测单元将当前电流值与预设阈值进行比较。S107. The nth layer fault detecting unit compares the current current value with a preset threshold.
S108、当当前电流值大于预设阈值时，第n层故障检测单元启动备用电路。S108. When the current current value is greater than a preset threshold, the nth layer fault detecting unit starts the standby circuit.
本发明实施例中，将低电位交流电压转化为稳压直流电压以供驱动电路工作。In the embodiment of the invention, the low potential alternating voltage is converted into a regulated direct current voltage for operation of the driving circuit.
本发明实施例中，将高电位交流电压对应的当前电流值与预设阈值进行比较，当当前电流值大于预设阈值时，根据预设策略启动指定数量的备用电路，直至当前电流值等于预设电流值。In the embodiment of the present invention, the current current value corresponding to the high-potential AC voltage is compared with a preset threshold. When the current current value is greater than the preset threshold, the specified number of standby circuits are started according to the preset strategy until the current current value is equal to the pre-predetermined value. Set the current value.
需要说明的是，本发明实施例中，高压隔离变压电路将低电位交流电压转化为高电位交流电压，并将高电位交流电压通过n个层间隔离变压器发送至n个层间供能电路，n个层间供能电路将高电位交流电压转化为稳压直流电压，完成为驱动电路的工作提供电能的过程。It should be noted that, in the embodiment of the present invention, the high voltage isolation transformer circuit converts the low potential alternating voltage into a high potential alternating voltage, and sends the high potential alternating voltage to the n interlayer energizing circuits through the n interlayer isolation transformers. The n inter-layer energizing circuits convert the high-potential AC voltage into a regulated DC voltage to complete the process of supplying power for the operation of the driving circuit.
需要说明的是，本发明实施例中，当n个层间供能电路中的驱动电路、为驱动电路供能的穿心CT或者整流稳压电路发生故障时，故障控制单元启动阻抗匹配单元，来平衡绝缘电缆中的电流。It should be noted that, in the embodiment of the present invention, when the driving circuit in the n interlayer power supply circuits, the through-core CT or the rectifying voltage-stabilizing circuit that supplies the driving circuit fails, the fault control unit starts the impedance matching unit. To balance the current in the insulated cable.
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序 产品。因此，本发明可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims (12)

  1. 一种供能系统，其特征在于，所述系统包括：An energy supply system, characterized in that the system comprises:
    高压隔离变压电路；High voltage isolation transformer circuit;
    与所述高压隔离变压电路的第一端连接的低电位电源；a low potential power source connected to the first end of the high voltage isolation transformer circuit;
    与所述高压隔离变压电路的第二端连接的n个层间供能电路和n个层间隔离变压器，n大于等于1；其中，n inter-layer energizing circuits and n interlayer isolation transformers connected to the second end of the high voltage isolation transformer circuit, wherein n is greater than or equal to 1;
    所述低电位电源，用于向高压隔离变压电路发送低电位交流电压；The low potential power source is configured to send a low potential alternating current voltage to the high voltage isolation transformer circuit;
    所述高压隔离变压电路，用于接收所述低电位交流电压，并将所述低电位交流电压转化成高电位交流电压，发送至所述n个层间供能电路中的第一个层间供能电路和所述n个层间隔离变压器中的第一个层间隔离变压器；The high voltage isolation transformer circuit is configured to receive the low potential alternating voltage and convert the low potential alternating voltage into a high potential alternating voltage and send to the first layer of the n interlayer energizing circuits An intervening circuit and a first interlayer isolation transformer of the n interlayer isolation transformers;
    所述n个层间供能电路中的第i个层间供能电路，用于接收第i-1个层间隔离变压器发送的所述高电位交流电压，并将所述高电位交流电压转化为稳压直流电压，i大于1；The i-th interlayer power supply circuit of the n interlayer power supply circuits is configured to receive the high-potential AC voltage sent by the i-1th interlayer isolation transformer, and convert the high-potential AC voltage For regulated DC voltage, i is greater than 1;
    所述n个层间隔离变压器中的第i个层间隔离变压器，用于接收所述第i-1个层间隔离变压器发送的所述高电位交流电压，并将所述高电位交流电压发送至第i+1个层间隔离变压器和第i+1个层间供能电路。The i-th interlayer isolation transformer of the n interlayer isolation transformers is configured to receive the high-potential AC voltage sent by the ith-1th interlayer isolation transformer, and send the high-potential AC voltage To the i+1th interlayer isolation transformer and the i+1th interlayer supply circuit.
  2. 根据权利要求1所述的系统，其特征在于，所述高压隔离变压电路第一端的第一连接头和第二连接头与所述低电位电源的第一连接头和第二连接头连接，所述高压隔离变压电路第二端的第一连接头与第二连接头与所述第一个层间隔离变压器第一端的第一连接头和第二连接头、所述第一个层间供能电路的第一连接头和第二连接头连接，所述第一个层间隔离变压器第二端的第一连接头和第二连接头与所述第i个层间隔离变压器第一端的第一连接头和第二连接头、所述第i个层间供能电路的第一连接头和第二连接头连接，所述第i个层间隔离变压器第二端的第一连接头和第二连接头与所述第i+1个层间隔离变压器第一端的第一连接头和第二连接头、第i+1个层间供能电路的第一连接头和第二连接头连接；The system according to claim 1, wherein the first connector and the second connector of the first end of the high voltage isolation transformer circuit are connected to the first connector and the second connector of the low potential power source. a first connector and a second connector of the first end of the second end of the high voltage isolation transformer circuit and the first connector and the first layer of the first interlayer isolation transformer, the first layer a first connector and a second connector of the power supply circuit are connected, the first connector and the second connector of the second end of the first interlayer isolation transformer and the first end of the ith interlayer isolation transformer a first connector and a second connector, a first connector and a second connector of the ith interlayer power supply circuit, and a first connector of the second end of the ith interlayer isolation transformer and a first connector and a second connector of the first end of the second connector and the i+1th interlayer isolation transformer, and a first connector and a second connector of the i+1th interlayer power supply circuit connection;
    所述n个层间隔离变压器中的第一个层间隔离变压器，用于接收所述高压隔离变压电路发送的所述高电位交流电压，并将所述高电位交流电压发送至所述第i个层间隔离变压器。a first interlayer isolation transformer of the n interlayer isolation transformers, configured to receive the high potential alternating voltage sent by the high voltage isolation transformer circuit, and send the high potential alternating voltage to the first i interlayer isolation transformers.
  3. 根据权利要求1所述的系统，其特征在于，所述高压隔离变压电路包括：与低电位电源连接的n个第一变压器、与所述n个第一变压器连接的n个电压均衡电路；The system according to claim 1, wherein said high voltage isolation transformer circuit comprises: n first transformers connected to a low potential power source; n voltage equalization circuits connected to said n first transformers;
    所述n个第一变压器，用于将所述低电位交流电压转化为所述高电位交流电压；The n first transformers for converting the low potential alternating voltage into the high potential alternating current voltage;
    所述n个电压均衡电路，用于将与所述n个电压均衡电路对应的n个第一变压器的第一电压转化为预设电压。The n voltage equalization circuits are configured to convert the first voltages of the n first transformers corresponding to the n voltage equalization circuits into a preset voltage.
  4. 根据权利要求1所述的系统，其特征在于，所述n个层间供能电路包括：n个绝缘电缆、与所述n个绝缘电缆中的任意一个连接的m个穿心电流互感器CT、与所述m个穿心CT连接的m个整流稳压电路和与所述m个整流稳压电路连接的m个驱动电路，m大于等于1；The system according to claim 1, wherein said n inter-layer energizing circuits comprise: n insulated cables, m through-current current transformers CT connected to any one of said n insulated cables m rectifying and stabilizing circuits connected to the m through-core CTs and m driving circuits connected to the m rectifying and stabilizing circuits, m being greater than or equal to 1;
    所述n个绝缘电缆中与所述第一个层间供能电路对应的第一个绝缘电缆与所述高压隔离变压电路的第二端连接；a first insulated cable corresponding to the first interlayer power supply circuit of the n insulated cables is connected to a second end of the high voltage isolation transformer circuit;
    所述n个绝缘电缆中与所述第i个层间供能电路对应的第i个绝缘电缆与所述第i-1个层间隔离变压器的第二端连接；An ith insulated cable corresponding to the ith interlayer power supply circuit of the n insulated cables is connected to a second end of the ith-1th interlayer isolation transformer;
    所述m个穿心CT，用于接收所述高压隔离变压电路和所述n个层间隔离变压器中的至少一个发送的所述高电位交流电压，并将所述高电位交流电压转化为第一电位交流电压；The m core CTs are configured to receive the high-potential AC voltage sent by at least one of the high-voltage isolation transformer circuit and the n interlayer isolation transformers, and convert the high-potential AC voltage into First potential alternating voltage;
    所述m个整流稳压电路，用于接收所述m个穿心CT发送的所述第一电位交流电压，并将所述第一电位交流电压转化成所述稳压直流电压；The m rectifier voltage stabilizing circuits are configured to receive the first potential AC voltage sent by the m core CTs, and convert the first potential AC voltage into the regulated DC voltage;
    所述m个驱动电路，用于接收所述m个整流稳压电路发送的所述稳压直流电压，并利用所述稳压直流电压来提供电能。The m driving circuits are configured to receive the regulated DC voltage sent by the m rectifier voltage stabilizing circuits, and use the regulated DC voltage to provide power.
  5. 根据权利要求3所述的系统，其特征在于，所述n个层间供能电路还包括：与所述n个绝缘电缆和所述n个层间隔离变压器连接的n个故障控制电路；The system according to claim 3, wherein said n inter-layer energizing circuits further comprise: n fault control circuits connected to said n insulated cables and said n interlayer isolation transformers;
    所述n个故障控制电路，用于将所述n个绝缘电缆上的所述高电位交流电压对应的当前电流值与预设阈值进行判断，并根据判断结果接收所述高电位交流电压。The n fault control circuits are configured to determine a current current value corresponding to the high-potential AC voltage on the n insulated cables and a preset threshold, and receive the high-potential AC voltage according to the determination result.
  6. 根据权利要求5所述的系统，其特征在于，所述n个故障控制电路中的任意一个故障控制电路包括：电流检测单元、与所述电流检测单元连接的m个阻抗匹配单元和控制单元，所述m个阻抗匹配单元与所述控制单元连接；The system according to claim 5, wherein any one of the n fault control circuits comprises: a current detecting unit, m impedance matching units and a control unit connected to the current detecting unit, The m impedance matching units are connected to the control unit;
    所述电流检测单元，用于接收所述任意一个故障控制电路对应的绝缘电缆中的当前电流值，将所述当前电流值与预设阈值进行比较，在所述当前电流值大于所述预设阈值时发送第一启动指令至所述控制单元；The current detecting unit is configured to receive a current current value in the insulated cable corresponding to any one of the fault control circuits, and compare the current current value with a preset threshold, where the current current value is greater than the preset Sending a first start command to the control unit when thresholding;
    所述控制单元，用于接收所述电流检测单元发送的第一启动指令，并根据所述第一启动指令启动所述m个阻抗匹配单元；The control unit is configured to receive a first start command sent by the current detecting unit, and start the m impedance matching units according to the first start command;
    所述m个阻抗匹配单元，用于将所述当前电流值转化为预设电流值。The m impedance matching units are configured to convert the current current value into a preset current value.
  7. 根据权利要求6所述的系统，其特征在于，The system of claim 6 wherein:
    所述n个阻抗匹配单元由n个第一电容、n个电感、n个第一电阻和n个开关组成，其中，所述n个第一电容中的第一个第一电容的第一端与所述电流检测单元、所述n个第一电阻中的第一个第一电阻的第一端和所述n个开关中的第一个开关的第一端连接，所述第一个第一电容的第二端与所述n个电感中的第一个电感的第一端连接，所述第一个电感的第二端与所述第一个第一电阻的第二端、所述第一个开关的第二端、第i个第一电容的第一端、第i个第一电阻的第一端和第i个开关的第一端连接，所述第i个第一电容的第二端与第i个电感的第一端连接，所述第i个电感的第二端与所述第i个开关的第二端、所述第i个第一电阻的第二端和所述第i+1个第一电容的第一端、第i+1个第一电阻的第一端和第i+1个开关的第一端连接，所述n个开关的第一端与所述控制单元连接。The n impedance matching units are composed of n first capacitors, n inductors, n first resistors, and n switches, wherein a first end of the first one of the n first capacitors Connecting to the current detecting unit, the first end of the first one of the n first resistors, and the first end of the first switch of the n switches, the first a second end of a capacitor is coupled to a first end of the first one of the n inductors, a second end of the first inductor and a second end of the first first resistor, a second end of the first switch, a first end of the ith first capacitor, a first end of the ith first resistor, and a first end of the ith switch, the ith first capacitor The second end is connected to the first end of the ith inductor, the second end of the ith inductor and the second end of the ith switch, and the second end of the ith first resistor The first end of the i+1th first capacitor, the first end of the i+1th first resistor, and the first end of the i+1th switch are connected, and the first end of the n switches The control unit is connected.
  8. 根据权利要求3所述的系统，其特征在于，The system of claim 3 wherein:
    所述n个电压均衡电路由n个第二电容和n个第二电阻组成，所述n个第二电容的第一端与所述n个第二电阻的第一端和所述n个第一变压器的第一端连接，所述n个第二电容的第二端与所述n个第二电阻的第二端和所述n个第一变压器的第二端连接。The n voltage equalization circuits are composed of n second capacitors and n second resistors, and the first ends of the n second capacitors and the first ends of the n second resistors and the n first A first end of the transformer is connected, and a second end of the n second capacitors is coupled to the second ends of the n second resistors and the second ends of the n first transformers.
  9. 根据权利要求1所述的系统，其特征在于，所述高压隔离变压电路的第二端、所述n个层间隔离变压器的第二端有三个连接头；其中，The system according to claim 1, wherein the second end of the high voltage isolation transformer circuit and the second end of the n interlayer isolation transformers have three connectors;
    所述第一个层间供能电路的第一端和第二端与所述高压隔离变压电路第二端的第一连接头和第二连接头连接，所述第一个层间隔离变压器第一端的第一连接头和第二连接头与所述高压隔离变压电路第二端的第二连接头和第三连接头连接，所述第i个层间供能电路的第一连接头和第二连接头与所述第i-1个层间隔离变压器第二端的第一连接头和第二连接头层间隔离变压器连接，所述第i个层间隔离变压器第一端的第一连接头和第二连接头与所述第i-1个层间隔离变压器第二端的第二连接头和第三连接头连接。The first end and the second end of the first interlayer power supply circuit are connected to the first connector and the second connector of the second end of the high voltage isolation transformer circuit, the first interlayer isolation transformer a first connector and a second connector at one end are connected to the second connector and the third connector of the second end of the high voltage isolation transformer circuit, the first connector of the i-th interlayer power supply circuit and a second connector is connected to the first connector and the second connector isolation transformer of the second end of the i-1th interlayer isolation transformer, and the first connection of the first end of the i-th interlayer isolation transformer The head and the second connector are connected to the second connector and the third connector of the second end of the i-1th interlayer isolation transformer.
  10. 一种供能方法，其特征在于，所述方法包括：An energy supply method, characterized in that the method comprises:
    低电位电源生成低电位交流电压，并发送至高压隔离变压器；The low potential power source generates a low potential AC voltage and sends it to the high voltage isolation transformer;
    所述高压隔离变压器将所述低电位交流电压转化成高电位交流电压，并将所述高电位交流电压发送至n个层间供能电路中的第一个层间供能电路和n个层间隔离变压器中的第一个层间隔离变压器，以供所述n个层间供能电路对应的n层驱动电路工作，n大于或等于1。The high voltage isolation transformer converts the low potential alternating voltage into a high potential alternating voltage, and sends the high potential alternating voltage to a first interlayer energizing circuit and n layers of n interlayer energizing circuits The first interlayer isolation transformer in the isolation transformer is operated for the n-layer driving circuit corresponding to the n interlayer energy supply circuits, and n is greater than or equal to 1.
  11. 根据权利要求10所述的方法，其特征在于，所述将所述高电位交流电压发送至n个层间供能电路中的第一个层间供能电路和n个层间隔离变压器中的第一个层间隔离变压器之后，所述方法还包括：The method according to claim 10, wherein said transmitting said high potential alternating voltage to said first interlayer energizing circuit of said n interlayer energizing circuits and said n interlayer insulating transformers After the first interlayer isolation transformer, the method further includes:
    第一个层间隔离变压器接收到所述高电位交流电压之后，将所述高电位交流电压发送至第i个层间供能电路和第i个层间隔离变压器，i大于1，小于或等于n；After receiving the high-potential AC voltage, the first interlayer isolation transformer sends the high-potential AC voltage to the ith interlayer power supply circuit and the ith interlayer isolation transformer, where i is greater than 1, less than or equal to n;
    第i个层间隔离变压器将所述高电位交流电压发送至第i+1个层间隔离变压器和第i+1个层间供能电路，以供所述第i+1个层间供能电路为对应的第i+1层驱动电路工作；The i-th interlayer isolation transformer sends the high-potential AC voltage to the (i+1)th interlayer isolation transformer and the i+1th interlayer energy supply circuit for supplying energy to the (i+1)th layer The circuit operates for the corresponding i+1th layer driving circuit;
    第i个层间供能电路接收到所述高电位交流电压之后，将所述高电位电压转换成稳压直流电压，以供所述第i层驱动电路工作。After receiving the high-potential AC voltage, the i-th interlayer power supply circuit converts the high-potential voltage into a regulated DC voltage for the operation of the ith layer driving circuit.
  12. 根据权利要求11所述的方法，其特征在于，所述将所述高电位电压转换成稳压直流电压之后，所述方法还包括：The method of claim 11, wherein after the converting the high potential voltage to a regulated DC voltage, the method further comprises:
    第n层故障检测单元获取所述第n个层间供能电路对应的当前电流值；The nth layer fault detecting unit acquires a current current value corresponding to the nth interlayer energy supply circuit;
    所述第n层故障检测单元将所述当前电流值与预设阈值进行比较；The nth layer fault detecting unit compares the current current value with a preset threshold;
    当所述当前电流值大于所述预设阈值时，所述第n层故障检测单元启动备用电路。The nth layer fault detecting unit starts the standby circuit when the current current value is greater than the preset threshold.
PCT/CN2018/074906 2017-04-19 2018-02-01 Energy supply system and method WO2018192291A1 (en)

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