CN102280891A - Static var generator (SVG) device parallel running control system and method based on optical fiber high speed communication - Google Patents
Static var generator (SVG) device parallel running control system and method based on optical fiber high speed communication Download PDFInfo
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Abstract
The invention discloses a static var generator (SVG) device parallel running control system and an SVG device parallel running control method based on optical fiber high speed communication. An interconnection parallel system comprises a plurality of SVG devices and corresponding communication boards, wherein each SVG device comprises a control module, a power module, a starting module and a connection reactance device; the optical fiber terminal of the control module is connected with the power module and transmits a control command and running state information; the power module, the starting module and the connection reactance device are connected with a power grid through cables sequentially; the control modules of the SVG devices are connected with the communication boards through data buses and transmit real-time output current and the running state information of the SVG devices; and the optical fiber transmitting ends and the receiving ends of the communication boards are connected with the optical fiber transmitting ends and the receiving ends of the communication boards of other SVG devices through optical fibers and transmit the real-time output current and the running state information of the SVG devices. By the system and the method, coordinated balance output of each SVG device can be realized and a common control aim can be fulfilled.
Description
Technical field
What the present invention relates to is a kind of device of power transmission technology field, specifically is a kind of SVG device parallel Operation Control system and method thereof based on the optical fiber high speed communication.
Background technology
STATCOM (SVG device) is one of main device of flexible AC transmission technology (Flexible AC Transmission System is called for short FACTS), and it is representing the new developing direction of present stage power system reactive power compensation technology.Dynamic passive compensation and active harmonics controlling device (hereinafter to be referred as device) can in extremely rapid succession provide capacitive and lagging reactive power, realize suitable voltage and Reactive Power Control, ensure power system stability, efficient, high-quality ground operation.In power distribution network, the SVG device of middle low capacity is installed near transformer station or the load, can improve the load and the quality of power supply at public electric wire net tie point place significantly, for example improve power factor, overcome three-phase imbalance, eliminate voltage flicker and voltage fluctuation, the supression harmonic pollution, or the like.
Because the SVG device separate unit capacity of power distribution network is not very big at present, extensive use along with the SVG device, the user needs jumbo dynamic passive compensation, therefore many SVG service requirement of being installed on same bus section, busbar section operation or controlling same busbar voltage increases gradually, therefore needs to realize the control method of SVG device parallel running.
Find through retrieval prior art, Chinese patent literature CN 201230215Y, day for announcing 2009-4-29, put down in writing a kind of " with the device of SVG device balance electric railway single-phase load ", this technology adopts two nested structures identical static reacance generator SVG device 1, SVG device 2, be connected to respectively on the left and right sides brachium pontis of low-pressure side, and the dc bus capacitor of the identical static reacance generator SVG device 1 of two nested structures, SVG device 2 is in parallel constitutes an integral body.
Chinese patent literature CN 201839011U, day for announcing 2011-5-18, put down in writing a kind of " controlling the SVG device static reactive power compensation device of shunt capacitor switching automatically ", this technology comprises voltage transformer, monitoring unit, chain type SVG device, voltage transformer is gathered the electrical network bus voltage signal, the electrical network bus voltage signal is passed to monitoring unit, monitoring unit sends control signal to chain type SVG device, and chain type SVG device is exported an amount of reactive power according to control signal to the electrical network bus.
Prior art does not have effective control method as yet for the parallel running of many SVG devices, prior art has only the switching of controlling shunt capacitor with the SVG device automatically, but can not be used for the coordination control of many SVG devices parallel running, idle output balance and coordinated operation when particularly realizing many SVG device outputs.
Summary of the invention
The present invention is directed to the prior art above shortcomings, a kind of SVG device parallel Operation Control system and method thereof based on the optical fiber high speed communication is provided, make each SVG device can coordinate balanced output, reach common controlled target.
The present invention is achieved by the following technical solutions:
The present invention relates to a kind of SVG device mutual contact mode parallel system, comprising based on the optical fiber high speed communication: several SVG devices and corresponding communication board thereof, wherein:
Described SVG device comprises: control module, power model, start module and be connected the reactance device, wherein: the optic fibre connector of control module links to each other with power model and transmits control command and running state information, power model, start module and be connected the reactance device and be connected with electrical network by cable successively, the control module of SVG device links to each other with communication board by data/address bus and transmits the real-time output current and the running state information of SVG device, and the optical fiber transmitting terminal of communication board and receiving terminal and other SVG device communication boards are connected to each other and transmit the real-time output current and the running state information of SVG device by optical fiber.
Described communication board comprises: programmable chip, six road optical fiber receive terminal, six road optical fiber send terminal and bus interface terminal, wherein: the bus port of programmable chip links to each other with the bus interface terminal and transmits the real-time output current and the running state information of SVG device, six road optical fiber receive real-time output current and the running state information that terminal links to each other with the input terminal of programmable chip respectively and transmits the SVG device, and six road optical fiber send real-time output current and the running state information that terminal links to each other with the lead-out terminal of programmable chip respectively and transmits the SVG device.
Described connection reactance device is reactor or transformer.
Described control module is the controller of built-in man-machine interface operating system, and the serial communication terminal of this controller is connected with built-in man-machine interface operating system and exchanges the operation information and the Control Parameter of SVG device.
The present invention relates to the control method of above-mentioned mutual contact mode parallel system, may further comprise the steps:
The first step, the man-machine interface operating system by controller, it is the mutual contact mode parallel connection that the SVG device is set, and SVG device quantity in parallel is treated in configuration;
Second step, SVG Setup Controller will install output current and state information write communication board by the data/address bus of base plate programming device;
Device output current, the idle and status information data of the 3rd step, communication board programming device readout data bus also encoded, and the optical fiber that sends to other all SVG device communication boards by optical fiber receives terminal then;
The 4th step, communication board optical fiber receive terminal and receive the data that other all SVG device communication board optical fiber send, and are connected to programming device, and programming device is decoded to data, obtains the output current of other SVG devices, idle and status information data;
The controller of the 5th step, SVG device reads the communication board programming device by data/address bus, obtains the output current of other SVG devices, idle and status information data.
The controller of the 6th step, SVG device calculates all SVG device numbers that have been incorporated into the power networks, idle output numerical value and current value, carries out algebraically with the idle and electric current of system and adds computing, the idle and electric current that obtains loading;
The controller of the 7th step, SVG device is calculated compensate component according to the reactive load galvanometer, with compensate component divided by the SVG device number that has been incorporated into the power networks, obtaining this device needs the idle and current reference value of compensation, and the output of the electric current of working control device is consistent with reference value.
The present invention relates to a kind of SVG device master-slave mode parallel system based on the optical fiber high speed communication, comprise: master controller, several described SVG devices and corresponding communication board thereof, wherein: the control end of SVG device links to each other with communication board by data/address bus and transmits the real-time output current and the running state information of SVG device, and the optical fiber transmitting terminal of communication board and receiving terminal are connected to master controller by optical fiber and transmit the real-time output current and the running state information of SVG device.
Described master controller comprises: the electric current and voltage modulate circuit, programmable chip, sample circuit, digital signal processing chip, six groups of optical fiber receive terminal and six groups of optical fiber transmission terminals, wherein: the analog quantity after electric current and voltage modulate circuit acquisition system electric current and voltage analog quantity also will be nursed one's health exports sample circuit to, sampled point road output digitized sampling signal is to programmable chip, programmable chip links to each other with digital signal processing chip and the sampled value of output voltage electric current, six groups of optical fiber receive real-time output current and the running state information that terminal links to each other with programmable chip and transmits the SVG device, and programmable chip sends the idle reference that terminal links to each other and transmits the SVG device with six groups of optical fiber.
The present invention relates to the control method of above-mentioned master-slave mode parallel system, may further comprise the steps:
Step 1, the man-machine interface operating system by controller the SVG device are set are the parallel connection of principal and subordinate's mutual contact mode, and SVG device quantity in parallel are treated in configuration;
Step 2, SVG Setup Controller will install output current and state information write communication board by the data/address bus of base plate programming device;
The device output current of step 3, communication board programming device readout data bus, idle and status information data are also encoded, and the optical fiber that sends to master controller by optical fiber receives terminal then;
Step 4, master controller receive terminal by optical fiber and receive the data that all SVG device communication board optical fiber send, and therefrom parse
The output current of every SVG device, idle and status information data obtain the total output current of SVG device, the idle and platform number that always is incorporated into the power networks;
Step 5, master controller pass through the data of sample circuit acquisition system voltage and current, idle and electric current and total output current and the idle algebraical sum of carrying out of SVG device with system, the idle and electric current that obtains loading.
Step 6, master controller are calculated compensate component according to the reactive load galvanometer, with compensate component divided by the SVG device number that has been incorporated into the power networks, obtain the idle and current reference value that each SVG device need compensate, by the optical fiber transmit port idle and current reference are issued the optical fiber that is given to SVG device communication board then and receive terminal.
Step 7, each SVG Setup Controller are taken out the idle and current reference that master controller issues by bus from separately communication board, and the output of the electric current of working control device is consistent with reference value.
The present invention is directed to the deficiencies in the prior art, SVG device parallel Operation Control system and method based on the high speed fibre communication has been proposed, comprise the in parallel and master-slave mode two kinds of implementations in parallel of interconnection type, this structure has very strong adaptability, under the situation of present communication board fiber capacity, can be fit to two situations in parallel to seven SVG devices, be under the situation of same bus position at voltage control point or power factor controlling point, can use this parallel-connection structure when the separate unit capacity is not enough.
The SVG Setup Controller of interconnection type parallel connection of the present invention and the master controller of master-slave mode parallel connection, can calculate the total platform number of SVG device of current parallel running and always idle automatically according to the information of optical fiber communication, thereby to load current and idle dividing equally, automatically the offset current that distributes this SVG device to bear makes each SVG device collaborative work under same controlled target in parallel.
Each SVG Setup Controller among the present invention is the relation of paired running, and the shutdown of any table apparatus does not influence the operation of other shunting means, and all the other devices can distribute automatically, utilizes to maximum program the capacity of device.
Description of drawings
Fig. 1 is the optical-fibre communications connection diagram of two SVG device mutual contact modes parallel connection;
Fig. 2 is the optical-fibre communications connection diagram of three SVG device mutual contact modes parallel connection;
Fig. 3 is the optical-fibre communications connection diagram of four SVG device mutual contact modes parallel connection;
Fig. 4 is the optical-fibre communications connection diagram of five SVG device mutual contact modes parallel connection;
Fig. 5 is the optical-fibre communications connection diagram of six SVG device mutual contact modes parallel connection;
Fig. 6 is the optical-fibre communications connection diagram of seven SVG device mutual contact modes parallel connection;
Fig. 7 is the optical-fibre communications connection diagram of six SVG device master-slave modes parallel connection;
Among the figure: XT1～XT6 is that the optical fiber transmission terminal of communication board, optical fiber reception terminal, the SVG device 1～SVG device 7 that XR1～XR6 is communication board are STATCOM.
Fig. 8 is SVG device and communication board connection diagram.
Fig. 9 forms schematic diagram for communication board.
Figure 10 is a SVG device internal frame diagram.
Figure 11 is the master controller internal frame diagram.
Embodiment
Below embodiments of the invention are elaborated, present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed execution mode and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
As Fig. 1 and shown in Figure 8, present embodiment is two SVG device interconnection type parallel Operation Control systems, comprise: two SVG devices and corresponding communication board thereof, wherein: the control module of each SVG device links to each other by the self-corresponding communication board of data/address bus and each and transmits the real-time output current of SVG device, idle and running state information, the XT1 terminal of SVG device 1 communication board links to each other by the XR1 terminal of optical fiber with SVG device 2 communication boards, the XT1 of SVG device 2 links to each other by the XR1 of optical fiber with SVG device 1, and what transmit in the optical fiber is the real-time output current of separate unit SVG device, idle and running state information.
When the SVG device is adopted as the interconnection type Parallel Control, should carries out optical-fibre communications in accordance with the order from top to bottom and connect, connected mode is as follows:
(1) with two parallel connections of bus, then uses XT1 and XR1, see Fig. 1;
(2) then use XT1～XT2 and XR1～XR2 with 3 parallel connections of bus, see Fig. 2;
(3) then use XT1～XT3 and XR1～XR3 with 4 parallel connections of bus, see Fig. 3;
(4) then use XT1～XT4 and XR1～XR4 with 5 parallel connections of bus, see Fig. 4;
(5) then use XT1～XT5 and XR1～XR5 with 6 parallel connections of bus, see Fig. 5;
(6) then use XT1～XT6 and XR1～XR6 with 7 parallel connections of bus, see Fig. 6;
During the mutual contact mode Parallel Control, if SVG device quantity is N, the number of fibers that then needs is
Described communication board comprises: programmable chip, six road optical fiber receive terminal, six road optical fiber send terminal and bus interface terminal, wherein: the bus port of programmable chip links to each other with the bus interface terminal and transmits the real-time output current and the running state information of SVG device, six road optical fiber receive real-time output current and the running state information that terminal links to each other with the input terminal of programmable chip respectively and transmits the SVG device, six road optical fiber send real-time output current and the running state information that terminal links to each other with the lead-out terminal of programmable chip respectively and transmits the SVG device, see Fig. 9.
Described SVG device comprises: control module, power model, startup module and be connected the reactance device, wherein: the optic fibre connector of control module links to each other with power model by optical fiber and transmits control command and running state information, power model is connected by cable with the startup module, start module and be connected the reactance device and connect by cable, connect the reactance device and be connected with electrical network, see Figure 10 by cable.
This connects the reactance device and can realize by reactor or transformer.
The control module of described SVG device is the controller of built-in man-machine interface operating system, wherein: the serial communication terminal of controller is connected with man-machine interface operating system and exchanges the operation information and the Control Parameter of SVG device, this controller comprises: a base plate and some control circuit boards, wherein: the plug connector terminal of base plate is connected with control board and by data/address bus exchange control and state information, the plug connector terminal of base plate is connected with communication board and exchanges control and state information mutually by data/address bus.
Present embodiment relates to the control method of said system, may further comprise the steps:
The first step, the man-machine interface operating system by controller, it is the mutual contact mode parallel connection that the SVG device is set;
Second step, SVG Setup Controller will install output current and state information write communication board by the data/address bus of base plate programming device;
Device output current, the idle and status information data of the 3rd step, communication board programming device readout data bus also encoded, and the optical fiber that sends to other all SVG device communication boards by optical fiber receives terminal then, and the data format that optical fiber sends is:
| B83～B68 | B67～B52 | B51～B48 | ?B47～B32 | ?B31～B16 | ?B15～B0 |
| The control busbar voltage | Idle reference | Running status | Device electric current C phase | Device electric current B phase | Device electric current A phase |
The 4th step, communication board optical fiber receive terminal and receive the data that other all SVG device communication board optical fiber send, and are connected to programming device, and programming device is decoded to data, obtains the output current of other SVG devices, idle and status information data;
The controller of the 5th step, SVG device reads the communication board programming device by data/address bus, obtains the output current of other SVG devices, idle and status information data.
The controller of the 6th step, SVG device calculates all SVG device numbers that have been incorporated into the power networks, idle output numerical value and current value, carries out algebraically with the idle and electric current of system and adds computing, the idle and electric current that obtains loading;
The controller of the 7th step, SVG device is calculated compensate component according to the reactive load galvanometer, with compensate component divided by the SVG device number that has been incorporated into the power networks, obtaining this device needs the idle and current reference value of compensation, and the output of the electric current of working control device is consistent with reference value.
Embodiment 2
As shown in Figure 7, present embodiment is six SVG device master-slave mode parallel Operation Control systems, comprise: master controller, six SVG devices and corresponding communication board thereof, wherein: the control end of SVG device links to each other with communication board by data/address bus and transmits the real-time output current and the running state information of SVG device, and the optical fiber transmitting terminal of six communication boards and receiving terminal all are connected to master controller by optical fiber and transmit the real-time output current and the running state information of SVG device.
During the master-slave mode Parallel Control, if SVG device quantity is N, the number of fibers that then needs is 2N.
Described master controller comprises: the electric current and voltage modulate circuit, programmable chip and sample circuit, digital signal processing chip, six groups of optical fiber receive terminal and six groups of optical fiber transmission terminals, wherein: the electric current and voltage analog quantity of system is input to the electric current and voltage modulate circuit, the electric current and voltage modulate circuit link to each other with programmable chip and sample circuit and transmit the conditioning after the electric current and voltage analog quantity, programmable chip links to each other with digital signal processing chip and the sampled value of output voltage electric current, six groups of optical fiber receive real-time output current and the running state information that terminal links to each other with programmable chip and transmits the SVG device, programmable chip sends the idle reference that terminal links to each other and transmits the SVG device with six groups of optical fiber, sees Figure 11.
The internal structure of all the other modules is with the control system of interconnection type parallel connection.
Present embodiment relates to the control method of said system, may further comprise the steps:
The first step, the man-machine interface operating system by controller are provided with the SVG device and are the parallel connection of principal and subordinate's mutual contact mode;
Second step, SVG Setup Controller will install output current and state information write communication board by the data/address bus of base plate programming device;
Device output current, the idle and status information data of the 3rd step, communication board programming device readout data bus also encoded, and the optical fiber that sends to master controller by optical fiber receives terminal then, sends form and is:
| B83～B68 | B67～B52 | B51～B48 | ?B47～B32 | ?B31～B16 | ?B15～B0 |
| Install always idle | Current operational mode | Running status | Device electric current C phase | Device electric current B phase | Device electric current A phase |
The 4th step, master controller receive terminal by optical fiber and receive the data that all SVG device communication board optical fiber send, and therefrom parse
The output current of every SVG device, idle and status information data obtain the total output current of SVG device, the idle and platform number that always is incorporated into the power networks;
The 5th step: master controller passes through the data of sample circuit acquisition system voltage and current, idle and electric current and total output current and the idle algebraical sum of carrying out of SVG device with system, the idle and electric current that obtains loading.
The 6th step, master controller are calculated compensate component according to the reactive load galvanometer, with compensate component divided by the SVG device number that has been incorporated into the power networks, obtain the idle and current reference value that each SVG device need compensate, by the optical fiber transmit port idle and current reference are issued the optical fiber that is given to SVG device communication board then and receive terminal, the form that master controller sends data is:
| B83～B68 | B67～B52 | B51～B48 | ?B47～B32 | ?B31～B16 | ?B15～B0 |
| Idle reference | Operational mode | Keep | Offset current C phase | Offset current B phase | Offset current A phase |
The 7th step, each SVG Setup Controller take out the idle and current reference that master controller issues by bus from separately communication board, and the output of the electric current of working control device is consistent with reference value.
Claims (8)
1. SVG device mutual contact mode parallel system based on the optical fiber high speed communication comprises: several SVG devices and corresponding communication board thereof is characterized in that:
Described SVG device comprises: control module, power model, start module and be connected the reactance device, wherein: the optic fibre connector of control module links to each other with power model and transmits control command and running state information, power model, start module and be connected the reactance device and be connected with electrical network by cable successively, the control module of SVG device links to each other with communication board by data/address bus and transmits the real-time output current and the running state information of SVG device, and the optical fiber transmitting terminal of communication board and receiving terminal and other SVG device communication boards are connected to each other and transmit the real-time output current and the running state information of SVG device by optical fiber.
2. system according to claim 1, it is characterized in that, described communication board comprises: programmable chip, six road optical fiber receive terminal, six road optical fiber send terminal and bus interface terminal, wherein: the bus port of programmable chip links to each other with the bus interface terminal and transmits the real-time output current and the running state information of SVG device, six road optical fiber receive real-time output current and the running state information that terminal links to each other with the input terminal of programmable chip respectively and transmits the SVG device, and six road optical fiber send real-time output current and the running state information that terminal links to each other with the lead-out terminal of programmable chip respectively and transmits the SVG device.
3. system according to claim 1 is characterized in that, described connection reactance device is reactor or transformer.
4. system according to claim 1, it is characterized in that, described control module is the controller of built-in man-machine interface operating system, and the serial communication terminal of this controller is connected with built-in man-machine interface operating system and exchanges the operation information and the Control Parameter of SVG device.
5. the control method according to the described system of above-mentioned arbitrary claim is characterized in that, may further comprise the steps:
The first step, the man-machine interface operating system by controller, it is the mutual contact mode parallel connection that the SVG device is set, and SVG device quantity in parallel is treated in configuration;
Second step, SVG Setup Controller will install output current and state information write communication board by the data/address bus of base plate programming device;
Device output current, the idle and status information data of the 3rd step, communication board programming device readout data bus also encoded, and the optical fiber that sends to other all SVG device communication boards by optical fiber receives terminal then;
The 4th step, communication board optical fiber receive terminal and receive the data that other all SVG device communication board optical fiber send, and are connected to programming device, and programming device is decoded to data, obtains the output current of other SVG devices, idle and status information data;
The controller of the 5th step, SVG device reads the communication board programming device by data/address bus, obtains the output current of other SVG devices, idle and status information data;
The controller of the 6th step, SVG device calculates all SVG device numbers that have been incorporated into the power networks, idle output numerical value and current value, carries out algebraically with the idle and electric current of system and adds computing, the idle and electric current that obtains loading;
The controller of the 7th step, SVG device is calculated compensate component according to the reactive load galvanometer, with compensate component divided by the SVG device number that has been incorporated into the power networks, obtaining this device needs the idle and current reference value of compensation, and the output of the electric current of working control device is consistent with reference value.
6. SVG device master-slave mode parallel system based on the optical fiber high speed communication, it is characterized in that, comprise: master controller, described several the described SVG devices of aforementioned arbitrary claim and corresponding communication board thereof, wherein: the control end of SVG device links to each other with communication board by data/address bus and transmits the real-time output current and the running state information of SVG device, and the optical fiber transmitting terminal of communication board and receiving terminal are connected to master controller by optical fiber and transmit the real-time output current and the running state information of SVG device.
7. system according to claim 6, it is characterized in that, described master controller comprises: the electric current and voltage modulate circuit, programmable chip, sample circuit, digital signal processing chip, six groups of optical fiber receive terminal and six groups of optical fiber transmission terminals, wherein: the analog quantity after electric current and voltage modulate circuit acquisition system electric current and voltage analog quantity also will be nursed one's health exports sample circuit to, sampled point road output digitized sampling signal is to programmable chip, programmable chip links to each other with digital signal processing chip and the sampled value of output voltage electric current, six groups of optical fiber receive real-time output current and the running state information that terminal links to each other with programmable chip and transmits the SVG device, and programmable chip sends the idle reference that terminal links to each other and transmits the SVG device with six groups of optical fiber.
8. the control method according to claim 6 or 7 described systems is characterized in that, may further comprise the steps:
Step 1, the man-machine interface operating system by controller the SVG device are set are the parallel connection of principal and subordinate's mutual contact mode, and SVG device quantity in parallel are treated in configuration;
Step 2, SVG Setup Controller will install output current and state information write communication board by the data/address bus of base plate programming device;
The device output current of step 3, communication board programming device readout data bus, idle and status information data are also encoded, and the optical fiber that sends to master controller by optical fiber receives terminal then;
Step 4, master controller receive terminal by optical fiber and receive the data that all SVG device communication board optical fiber send, and therefrom parse
The output current of every SVG device, idle and status information data obtain the total output current of SVG device, the idle and platform number that always is incorporated into the power networks;
Step 5, master controller pass through the data of sample circuit acquisition system voltage and current, idle and electric current and total output current and the idle algebraical sum of carrying out of SVG device with system, the idle and electric current that obtains loading;
Step 6, master controller are calculated compensate component according to the reactive load galvanometer, with compensate component divided by the SVG device number that has been incorporated into the power networks, obtain the idle and current reference value that each SVG device need compensate, by the optical fiber transmit port idle and current reference are issued the optical fiber that is given to SVG device communication board then and receive terminal;
Step 7, each SVG Setup Controller are taken out the idle and current reference that master controller issues by bus from separately communication board, and the output of the electric current of working control device is consistent with reference value.
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| CN103311934A (en) * | 2013-06-18 | 2013-09-18 | 深圳市英威腾电气股份有限公司 | System and method for multi-machine communication with SVG/APF (static var generator/active power filter) in parallel operation |
| CN104065086A (en) * | 2014-06-03 | 2014-09-24 | 江苏华冠电器集团有限公司 | Parallel run controller for static idle generating devices and control method thereof |
| CN106229996A (en) * | 2016-08-16 | 2016-12-14 | 株洲变流技术国家工程研究中心有限公司 | A kind of system realizing the operation of SVG device multi-machine parallel connection and control method thereof |
| CN109728936A (en) * | 2018-12-05 | 2019-05-07 | 北京电力自动化设备有限公司 | High-voltage chain type static reacance generator communication management method, apparatus and system |
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| CN111624396A (en) * | 2020-05-13 | 2020-09-04 | 新风光电子科技股份有限公司 | Current isolation acquisition device for 35kV direct hanging type SVG |
| CN112838619A (en) * | 2020-12-30 | 2021-05-25 | 山东大学 | Energy storage converter parallel operation system and method based on high-speed serial optical fiber |
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| CN104065086A (en) * | 2014-06-03 | 2014-09-24 | 江苏华冠电器集团有限公司 | Parallel run controller for static idle generating devices and control method thereof |
| CN106229996B (en) * | 2016-08-16 | 2019-01-22 | 株洲变流技术国家工程研究中心有限公司 | A kind of system and its control method for realizing the operation of SVG device multi-machine parallel connection |
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| CN112838619A (en) * | 2020-12-30 | 2021-05-25 | 山东大学 | Energy storage converter parallel operation system and method based on high-speed serial optical fiber |
| CN112838619B (en) * | 2020-12-30 | 2023-03-28 | 山东大学 | Energy storage converter parallel operation system and method based on high-speed serial optical fiber |
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