CN110299711A - A kind of Static Synchronous Series compensation system and method - Google Patents

A kind of Static Synchronous Series compensation system and method Download PDF

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Publication number
CN110299711A
CN110299711A CN201910450702.2A CN201910450702A CN110299711A CN 110299711 A CN110299711 A CN 110299711A CN 201910450702 A CN201910450702 A CN 201910450702A CN 110299711 A CN110299711 A CN 110299711A
Authority
CN
China
Prior art keywords
transmission line
primary circuit
electricity
change
high potential
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910450702.2A
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Chinese (zh)
Inventor
王轩
朱宁辉
王承民
武晓梅
詹雄
魏孟刚
李艳军
高岩
燕翚
付永生
屈海涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NARI Group Corp
China EPRI Science and Technology Co Ltd
China EPRI Electric Power Engineering Co Ltd
Original Assignee
NARI Group Corp
China EPRI Science and Technology Co Ltd
China EPRI Electric Power Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NARI Group Corp, China EPRI Science and Technology Co Ltd, China EPRI Electric Power Engineering Co Ltd filed Critical NARI Group Corp
Priority to CN201910450702.2A priority Critical patent/CN110299711A/en
Publication of CN110299711A publication Critical patent/CN110299711A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/24Arrangements for preventing or reducing oscillations of power in networks

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

A kind of Static Synchronous Series compensation system and method include: the primary circuit being installed on high potential platform in this programme and are installed on control and protect indoor secondary circuit;The high potential platform is connect with electric transmission line equipotential;The primary circuit is serially connected in transmission line of electricity, carries out voltage compensation to the transmission line of electricity;The secondary circuit is connect with the primary circuit, according to the voltage missing values of the transmission line of electricity, issues compensating instruction to the primary circuit.Static Synchronous Series compensation system in this programme needs without series transformer or only low insulation grade series transformer, and series transformer insulating Design difficulty is greatly reduced, and reduces installation cost, mitigates weight of equipment, reduces equipment manufacturing cost, substantially reduces occupied area.High potential platform book electric transmission line equipotential connects in this programme, and primary circuit is installed on high potential platform, reduces the electromagnetic interference of corona discharge energy loss and nearby device caused by primary circuit.

Description

A kind of Static Synchronous Series compensation system and method
Technical field
The present invention relates to Survey of Flexible AC Transmission System Technology fields, and in particular to a kind of Static Synchronous Series compensation system and side Method.
Background technique
Currently, power supply and load are in contrary distribution, the extensive wind-powered electricity generation for concentrating exploitation all in load it is lighter remotely Area, extensive wind energy, which is collected, to be sent outside as inevitable choice, and the weak sending end of power grid, the transient stability in long distance power transmission corridor, dynamic are steady Determine outstanding problem, seriously threatens area power grid safe and stable operation.In order to promote new energy to send out and consumption, needs research and improve System transmission capacity and the effective measures for enhancing system stability.
In addition, power load sharp increase, remote conveying capacitance constantly increases with the fast development of large- and-medium size cities Greatly, to transmission line of electricity power supply capacity, more stringent requirements are proposed.Newly-built transmission line of electricity expropriation of land is removed and more resulting Social influence all proposes requirement to transmission line construction.Therefore, the ability to transmit electricity for how improving existing passway for transmitting electricity has weight The realistic meaning wanted.On the other hand, 220kV and the above power grid mostly use double-circuit line to power, since regional load is unevenly distributed Weighing apparatus, there are the phenomenons of route heavy duty in some areas, and when a route is out of service, being influenced another route by line footpath will overload, Cause subregion bulk supply ability to be unable to give full play, not only affects power grid and play scale and benefit, also result in and occur operating a switch limit Electric situation brings adverse effect to the national economic development.Therefore, it is badly in need of a kind of effective power flowcontrol means, Lai Tigao power grid Operational safety stability.
For the above technical need, static synchronous series compensator provides a kind of advanced and economic solution. SSSC uses the voltage source converter technology based on turn-off device, can be equivalent to the synchronous voltage source of series connection in the line, leads to The voltage source that injection one is orthogonal with line current, amplitude is controllable is crossed to change the equivalent impedance of transmission line of electricity.SSSC has tide The features such as flow-control capability is strong, fast response time, compensation ability are not influenced by line current size, additional control damping can press down Oscillation of power processed or sub-synchronous oscillation.Line Flow can flexibly be controlled using SSSC, greatly improve line power transmission limit, And the quick response and additional longitudinal forces of its power control can better adapt to the spy of new energy power output randomness, fluctuation Point is to improve the weak sending end of power grid, long distance power transmission corridor transmission capacity and the effective means for enhancing system security and stability.This Outside, the advantages such as SSSC has capacitive and perceptual bidirectional compensating, structure is simple, occupied area is small, are suitble to operational flexibility, reliably The more demanding large- and-medium size cities power grids such as property, occupied area.Under power grid normal operating mode, SSSC carries out equivalent appearance to route Property compensation, need to improve route transmission capacity according to system;Power grid occurs to carry out inductive compensation in the case of N-1, and SSSC adjusts line Road trend avoids overloading;In power grid transient process, SSSC generates additional damping torque by control, inhibits oscillation, improves power grid Stability, but the prior art by static synchronous series compensator by high insulation voltage grade series transformer access system, lead Cause device integrated level is low, take up a large area, insulation costs are high, economy is lower.
Summary of the invention
Pass through high insulation voltage to solve the prior art in the presence of the prior art for static synchronous series compensator Grade series transformer access system device integrated level is low, the problem of taking up a large area, and the present invention provides a kind of Static Synchronous Series compensation system and method.
Present invention provide the technical scheme that
A kind of Static Synchronous Series compensation system, the system comprises, be installed on primary circuit on high potential platform and It is installed on control and protects indoor secondary circuit;
The high potential platform is connect with electric transmission line equipotential;
The primary circuit is serially connected in transmission line of electricity, carries out voltage compensation to the transmission line of electricity;
The secondary circuit is connect with the primary circuit, according to the voltage missing values of the transmission line of electricity, to described one Minor loop issues compensating instruction.
Preferably, the primary circuit, comprising: multiple change of current modules;
It is accessed in transmission line of electricity after all change of current module series windings.
Preferably, the primary circuit, further includes: filter inductance;
It is accessed in transmission line of electricity after all change of current module series windings by filter inductance.
Preferably, the primary circuit, further includes: filter inductance and it is identical with the change of current module number it is multiple it is low absolutely Edge transformer;
It is accessed in transmission line of electricity after the multiple low insulation transformer series by filter inductance;
Each change of current module is transformer coupled with a low insulation respectively.
Preferably, the primary circuit, further includes: low insulation transformer;
After the change of current module is sequentially connected in series, it is connected in parallel on the secondary side of the low insulation transformer;
The primary side of the low insulation transformer is connected in the transmission line of electricity.
Preferably, the change of current module, comprising:
Two IGBT bridge arms, Support Capacitor and mechanical switch;
The IGBT bridge arm and the Support Capacitor simultaneously connect, and the midpoint of two IGBT bridge arms constitutes output end;
The mechanical switch is attempted by between the output end, for controlling the bypass or investment of the ICBT bridge arm.
Preferably, the change of current module, further includes: two thyristors;
The output end of the change of current module is attempted by after two thyristor reverse parallel connections, for working as the IGBT bridge arm When failure, the IGBT bridge arm is quickly bypassed.
Preferably, the primary circuit, further includes: instruction receiving unit;
Described instruction receiving unit is connect with the mechanical switch, for the compensating instruction according to the secondary circuit, control Make the on-off of the mechanical switch.
Preferably, the high potential platform includes inferior grade insulator;
The primary circuit is installed on high potential platform by the support of inferior grade insulator.
A kind of Static Synchronous Series compensation method, comprising:
When the voltage of transmission line of electricity missing, control protection indoor secondary circuit is installed on according to voltage missing values, is formulated Compensating instruction is sent to the primary circuit being installed on high potential platform;
The primary circuit carries out electricity according to the compensating instruction, to the transmission line of electricity of high potential platform equipotential link Pressure compensation.
Preferably, compensating instruction, packet are formulated according to voltage missing values in the control protection indoor secondary circuit that is installed on It includes:
The secondary circuit determines the change of current for needing to put into primary circuit according to the voltage missing values of the transmission line of electricity The quantity of module, and formulate compensating instruction.
Preferably, the primary circuit is according to the compensating instruction, to the power transmission line with high potential platform equipotential link Road carries out voltage compensation, comprising:
Signal receiving unit in the primary circuit controls change of current module in primary circuit according to the compensating instruction Mechanical switch closure, the IGBT bridge arm in current commutation module is bypassed;
The change of current module to come into operation carries out voltage compensation to transmission line of electricity.
Compared with prior art, the invention has the benefit that
Technical solution provided by the invention, comprising: the primary circuit being installed on high potential platform is protected with control is installed on Protect indoor secondary circuit;The high potential platform is connect with electric transmission line equipotential;The primary circuit is serially connected with power transmission line Lu Zhong carries out voltage compensation to the transmission line of electricity;The secondary circuit is connect with the primary circuit, according to the power transmission line The voltage missing values on road issue compensating instruction to the primary circuit.Static Synchronous Series compensation system in this programme is not necessarily to Series transformer only needs low insulation grade series transformer, and series transformer insulating Design difficulty is greatly reduced, and reduces dress It is set to this, mitigates weight of equipment, equipment manufacturing cost is reduced, substantially reduces occupied area.High potential platform book power transmission line in this programme Road equipotential link, primary circuit are installed on high potential platform, reduce corona discharge energy loss caused by primary circuit With the electromagnetic interference of nearby device.
Detailed description of the invention
Fig. 1 is a kind of Static Synchronous Series compensation system structure chart of the invention;
Fig. 2 is the connection structure diagram of scheme one in the embodiment of the present invention;
Fig. 3 is the connection structure diagram of scheme two in the embodiment of the present invention;
Fig. 4 is the connection structure diagram of scheme three in the embodiment of the present invention;
Specific embodiment
For a better understanding of the present invention, the contents of the present invention are done further with example with reference to the accompanying drawings of the specification Explanation.
Embodiment 1:
A kind of Static Synchronous Series compensation system is present embodiments provided, is installed in substation, system construction drawing such as Fig. 1 Shown, wherein primary circuit component is mounted on high potential platform;It is indoor that secondary component is mounted on control protection;This system is also It include: cooling water machine and heat exchanger, cooling water machine is mounted in water cooling chamber;Heat exchanger is installed on open air.
There are many composition proposals for the primary circuit component:
Scheme one: without access transformer static synchronous series compensator.
When system short circuit capacity is smaller, plant area or cost control can be used this programme when requiring stringenter.
As shown in Fig. 2, primary circuit is by filter inductance and concatenated N number of change of current module composition, directly series connection access transmission of electricity Route.Filter inductance, series connection change of current module are supported on high potential platform by low insulation grade insulator.Each concatenated change of current Module is made of H-bridge circuit, and main component is two based on IGBT bridge arm in parallel with Support Capacitor, and two bridge arm midpoints are Change of current module output end, anti-parallel thyristor between change of current module output end can also be matched simultaneously between change of current module output end Join mechanical switch or contactor.It is also devised in change of current module and takes energy circuit and module measurement control and protection unit, may be implemented Route takes the control and protection of energy and return circuit module.
Wherein, voltage output is realized in H bridge, that is, inverter power component part;Support Capacitor provides direct current for inverter Support voltage;Anti-parallel thyristor realizes fast conducting and bypasses inverter, inverter can be made to exit when converter fault;Machine Tool switch or contactor realize that inverter reliably bypasses;Energy circuit is taken to realize to high potential converter Control monitoring for protection list Member provides energy.
Scheme two: distributed static synchronous series compensator.
This programme is system short-circuit electric current is larger, device volume or when stringenter Weight control can be used.
As shown in figure 3, primary circuit is by the filter inductance that can be matched and the N accessed by low insulation ranking score cloth transformer A change of current module composition, the filter inductance that can be matched directly connect with distribution transformer primary side and access transmission line of electricity.Each Concatenated change of current module is made of H-bridge circuit, main component be two based on IGBT bridge arm in parallel with Support Capacitor, two Bridge arm midpoint is change of current module output end, anti-parallel thyristor between change of current module output end, between change of current module output end also Parallel manipulator switch or contactor can be matched.Change of current module output end is in parallel with distribution transformer secondary side.Change of current module Inside be also devised with take can circuit and module measurement control and protection unit, may be implemented route take can and return circuit module control with Protection.
Scheme three: series transformer accesses static synchronous series compensator.
This programme is system short-circuit electric current is larger, device volume or when not stringent Weight control can be used.
As shown in figure 4, primary circuit is by low insulation grade series transformer, concatenated N number of change of current module composition, low insulation Grade series transformer primary side, which is directly connected, accesses transmission line of electricity.Each concatenated change of current module is made of H-bridge circuit, mainly Component is two based on IGBT bridge arm in parallel with Support Capacitor, and two bridge arm midpoints are change of current module output end, change of current mould Anti-parallel thyristor between block output end can also match parallel manipulator switch or contactor between change of current module output end.It is N number of After change of current block coupled in series, output end is in parallel with low insulation grade series transformer secondary side.It is also devised in change of current module and takes energy Circuit and module measure control and protection unit, and the control and protection that route takes energy and return circuit module may be implemented.
The control of the secondary component of static synchronous series compensator and a component based on high potential platform structure, which is protected, to be supervised Electronic circuit is surveyed by optical-fibre communications, converter valve such as uses water-cooling pattern, water distribution pipeline of converter valve by insulating materials water pipe from High potential platform is connected to water dispenser and heat exchanger under drawing.Insulating materials can select the materials such as PVDF, PPR.
Embodiment two:
Present embodiments provide a kind of Static Synchronous Series compensation system, comprising: be installed on primary on high potential platform Indoor secondary circuit is protected with control is installed in circuit;
The high potential platform is connect with electric transmission line equipotential;
The primary circuit is serially connected in transmission line of electricity, carries out voltage compensation to the transmission line of electricity;
The secondary circuit is connect with the primary circuit, according to the voltage missing values of the transmission line of electricity, to described one Minor loop issues compensating instruction.
The primary circuit, comprising: multiple change of current modules;
It is accessed in transmission line of electricity after all change of current module series windings.
The primary circuit, further includes: filter inductance;
It is accessed in transmission line of electricity after all change of current module series windings by filter inductance.
The primary circuit, further includes: filter inductance and multiple low insulation transformations identical with the change of current module number Device;
It is accessed in transmission line of electricity after the multiple low insulation transformer series by filter inductance;
Each change of current module is transformer coupled with a low insulation respectively.
The primary circuit, further includes: low insulation transformer;
After the change of current module is sequentially connected in series, it is connected in parallel on the secondary side of the low insulation transformer;
The primary side of the low insulation transformer is connected in the transmission line of electricity.
The change of current module, comprising:
Two IGBT bridge arms, Support Capacitor and mechanical switch;
The IGBT bridge arm and the Support Capacitor simultaneously connect, and the midpoint of two IGBT bridge arms constitutes output end;
The mechanical switch is attempted by between the output end, for controlling the bypass or investment of the ICBT bridge arm.
The change of current module, further includes: two thyristors;
The output end of the change of current module is attempted by after two thyristor reverse parallel connections, for working as the IGBT bridge arm When failure, the IGBT bridge arm is quickly bypassed.
The primary circuit, further includes: instruction receiving unit;
Described instruction receiving unit is connect with the mechanical switch, for the compensating instruction according to the secondary circuit, control Make the on-off of the mechanical switch.
The high potential platform includes inferior grade insulator;
The primary circuit is installed on high potential platform by the support of inferior grade insulator.
Embodiment three:
Present embodiments provide a kind of Static Synchronous Series compensation method, comprising:
When the voltage of transmission line of electricity missing, control protection indoor secondary circuit is installed on according to voltage missing values, is formulated Compensating instruction is sent to the primary circuit being installed on high potential platform;
The primary circuit carries out electricity according to the compensating instruction, to the transmission line of electricity of high potential platform equipotential link Pressure compensation.
Compensating instruction is formulated according to voltage missing values in the control protection indoor secondary circuit that is installed on, comprising:
The secondary circuit determines the change of current for needing to put into primary circuit according to the voltage missing values of the transmission line of electricity The quantity of module, and formulate compensating instruction.
The primary circuit carries out electricity according to the compensating instruction, to the transmission line of electricity of high potential platform equipotential link Pressure compensation, comprising:
Signal receiving unit in the primary circuit controls change of current module in primary circuit according to the compensating instruction Mechanical switch closure, the IGBT bridge arm in current commutation module is bypassed;
The change of current module to come into operation carries out voltage compensation to transmission line of electricity.
Obviously, described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on the present invention In embodiment, all other implementation obtained by those of ordinary skill in the art without making creative efforts Example, shall fall within the protection scope of the present invention.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.
The above is only the embodiment of the present invention, are not intended to restrict the invention, all in the spirit and principles in the present invention Within, any modification, equivalent substitution, improvement and etc. done, be all contained in apply pending scope of the presently claimed invention it It is interior.

Claims (12)

1. a kind of Static Synchronous Series compensation system, which is characterized in that the system comprises one be installed on high potential platform Minor loop protects indoor secondary circuit with control is installed on;
The high potential platform is connect with electric transmission line equipotential;
The primary circuit is serially connected in transmission line of electricity, carries out voltage compensation to the transmission line of electricity;
The secondary circuit is connect with the primary circuit, according to the voltage missing values of the transmission line of electricity, to described primary time Road issues compensating instruction.
2. the system as claimed in claim 1, which is characterized in that the primary circuit, comprising: multiple change of current modules;
It is accessed in transmission line of electricity after all change of current module series windings.
3. system as claimed in claim 2, which is characterized in that the primary circuit, further includes: filter inductance;
It is accessed in transmission line of electricity after all change of current module series windings by filter inductance.
4. system as claimed in claim 2, which is characterized in that the primary circuit, further includes: filter inductance and changed with described The identical multiple low insulation transformers of flow module quantity;
It is accessed in transmission line of electricity after the multiple low insulation transformer series by filter inductance;
Each change of current module is transformer coupled with a low insulation respectively.
5. system as claimed in claim 2, which is characterized in that the primary circuit, further includes: low insulation transformer;
After the change of current module is sequentially connected in series, it is connected in parallel on the secondary side of the low insulation transformer;
The primary side of the low insulation transformer is connected in the transmission line of electricity.
6. such as the described in any item systems of claim 2 to 5, which is characterized in that the change of current module, comprising:
Two IGBT bridge arms, Support Capacitor and mechanical switch;
The IGBT bridge arm and the Support Capacitor simultaneously connect, and the midpoint of two IGBT bridge arms constitutes output end;
The mechanical switch is attempted by between the output end, for controlling the bypass or investment of the ICBT bridge arm.
7. system as claimed in claim 6, which is characterized in that the change of current module, further includes: two thyristors;
The output end of the change of current module is attempted by after two thyristor reverse parallel connections, for working as the IGBT bridge arm failure When, quickly bypass the IGBT bridge arm.
8. system as claimed in claim 6, which is characterized in that the primary circuit, further includes: instruction receiving unit;
Described instruction receiving unit is connect with the mechanical switch, for the compensating instruction according to the secondary circuit, controls institute State the on-off of mechanical switch.
9. the system as claimed in claim 1, which is characterized in that the high potential platform includes inferior grade insulator;
The primary circuit is installed on high potential platform by the support of inferior grade insulator.
10. a kind of Static Synchronous Series compensation method characterized by comprising
When the voltage of transmission line of electricity missing, control protection indoor secondary circuit is installed on according to voltage missing values, formulates compensation Instruction, is sent to the primary circuit being installed on high potential platform;
The primary circuit carries out voltage benefit according to the compensating instruction, to the transmission line of electricity of high potential platform equipotential link It repays.
11. method as claimed in claim 10, which is characterized in that the control protection indoor secondary circuit that is installed on is according to electricity Missing values are pressed, compensating instruction is formulated, comprising:
The secondary circuit determines the change of current module for needing to put into primary circuit according to the voltage missing values of the transmission line of electricity Quantity, and formulate compensating instruction.
12. method as claimed in claim 11, which is characterized in that the primary circuit according to the compensating instruction, to height The transmission line of electricity of potential plateau equipotential link carries out voltage compensation, comprising:
Signal receiving unit in the primary circuit controls the machinery of change of current module in primary circuit according to the compensating instruction It closes the switch, the IGBT bridge arm in current commutation module is bypassed;
The change of current module to come into operation carries out voltage compensation to transmission line of electricity.
CN201910450702.2A 2019-05-28 2019-05-28 A kind of Static Synchronous Series compensation system and method Pending CN110299711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910450702.2A CN110299711A (en) 2019-05-28 2019-05-28 A kind of Static Synchronous Series compensation system and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910450702.2A CN110299711A (en) 2019-05-28 2019-05-28 A kind of Static Synchronous Series compensation system and method

Publications (1)

Publication Number Publication Date
CN110299711A true CN110299711A (en) 2019-10-01

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Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022095545A1 (en) * 2020-11-03 2022-05-12 南京南瑞继保电气有限公司 Method and apparatus for controlling distributed series compensator, and computer-readable medium
CN116845845A (en) * 2023-07-21 2023-10-03 山东华天电气有限公司 Protection circuit, equipment and control method of series compensation transformer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022095545A1 (en) * 2020-11-03 2022-05-12 南京南瑞继保电气有限公司 Method and apparatus for controlling distributed series compensator, and computer-readable medium
CN116845845A (en) * 2023-07-21 2023-10-03 山东华天电气有限公司 Protection circuit, equipment and control method of series compensation transformer

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