CN104199311A - Simulation test system of multi-terminal flexible direct current transmission control protection system - Google Patents

Simulation test system of multi-terminal flexible direct current transmission control protection system Download PDF

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Publication number
CN104199311A
CN104199311A CN201410448978.4A CN201410448978A CN104199311A CN 104199311 A CN104199311 A CN 104199311A CN 201410448978 A CN201410448978 A CN 201410448978A CN 104199311 A CN104199311 A CN 104199311A
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CN
China
Prior art keywords
protection
control
current conversion
control protection
conversion station
Prior art date
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Pending
Application number
CN201410448978.4A
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Chinese (zh)
Inventor
黄晓明
陆翌
田杰
董云龙
胡仙来
张静
王柯
李钢
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.)
State Grid Zhejiang Electric Power Co Ltd
NR Electric Co Ltd
NR Engineering Co Ltd
Zhejiang Electric Power Research Institute
Original Assignee
State Grid Zhejiang Electric Power Co Ltd
NR Electric Co Ltd
NR 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.)
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Publication date
Application filed by State Grid Zhejiang Electric Power Co Ltd, NR Electric Co Ltd, NR Engineering Co Ltd filed Critical State Grid Zhejiang Electric Power Co Ltd
Priority to CN201410448978.4A priority Critical patent/CN104199311A/en
Publication of CN104199311A publication Critical patent/CN104199311A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a simulation test system of a multi-terminal flexible direct current transmission control protection system. The simulation test system comprises a real-time digital simulator, an interface hardware device and a control protection device; a simulation model of the simulation system comprises at least three terminals of converter stations; the control protection and valve control functions of at least one of the converter stations of the simulation system are implemented through the control protection device and a valve control device; the control protection function of at least one of the converter stations of the simulation system is implemented through the simulation model. According to the simulation test system of the multi-terminal flexible direct current transmission control protection system, the hardware implementation and the software simulation are performed on the control protection and valve control functions and accordingly the defects that the structure is complex, the wiring is complex, the debugging is difficult, and the required hardware is more in the previous multi-terminal flexible direct current transmission real-time simulation system can be overcome and a reference and simplified method is provided for the development and testing of modularization based new energy access contained multilevel multi-terminal flexible direct current transmission control protection equipment.

Description

Multiterminal flexible DC power transmission is controlled the emulation test system of protection system
Technical field
The invention belongs to Power Electronic Technique and electric control system real-time simulation field, particularly a kind of multiterminal flexible DC power transmission based on modular multilevel is controlled the emulation test system of protection system.
Background technology
Along with the development of power electronic devices, modularization multi-level converter topology is more and more in the application of high-voltage large-capacity field of power conversion, and corresponding control technology is development thereupon also.Flexible DC power transmission based on modular multilevel has plurality of advantages such as being easy to realize new-energy grid-connected, black startup, power reverses, structure multi-terminal HVDC transmission system, thereby is widely applied.The control protection of modularization multi-level converter is the core of multiterminal flexible DC power transmission system, and controlling the correct of defencive function and improving is the necessary condition of multiterminal flexible DC power transmission engineering reliability service.
Multiterminal flexible DC power transmission system based on modular multilevel needs simulated field situation to make closed test in research and development and functional test stage; with simulation, adjust influencing each other of the stable state of control system and dynamic property, ac and dc systems, checking relay protection strategy.The method that closed test is conventional is to build physics prototype based on real-time simulation apparatus; to comprise that the primary system equipment such as converter valve, transformer, ac cable, direct current cables, isolating switch, disconnector are built into real-time simulation simulation experiment system according to actual parameter and real topology, and by interfacing equipment and working control, protect equipment connection formation closed-loop system to complete various real-time simulations and test.
Patent CN 103268117 A have proposed a kind of modular multilevel flexible direct current control protective unit pilot system and method based on RTDS; the feature of this system is the corresponding a set of control protection of each current conversion station and valve control device in realistic model, and all metrical informations of current conversion station and control information are all received and controlled protection and valve control device by interface arrangement.This feature is also the feature of current all flexible direct current control protective unit emulation test systems.And flexible DC power transmission system is more and more applied in multi-terminal system, system contains three ends or current conversion stations more than three ends.Adopt current soft straight emulation test system, need to configure control protection and the valve control device of same terminal number, so emulation test system has that device is numerous, complex structure, the low inferior shortcoming of debugging efficiency.For this feature, the present invention proposes a kind of emulation test system of multiterminal flexible DC power transmission, can reduce the complexity of system, improves control protective unit debugging efficiency.
Summary of the invention
Object of the present invention; be to provide a kind of control protection closed-loop simulation pilot system of modular multilevel multiterminal flexible DC power transmission; it has the feature of protecting with valve control funtion part Hardware, part software implementation of controlling; control protection and the valve control module of take in realistic model are reference; the function of verification control protective unit and valve control device; intactly simulate the on-the-spot various operation conditionss of Practical Project, realize quickly and easily the test of the whole multiterminal flexible DC power transmission based on modular multilevel being controlled to protection system device simultaneously.
In order to reach above-mentioned purpose, solution of the present invention is:
Multiterminal flexible DC power transmission is controlled an emulation test system for protection system, it is characterized in that:
(1) the control protection that comprises at least a set of reality and valve control device;
(2) realistic model of described emulation test system comprises three or three above current conversion stations; the corresponding a set of control protection of each current conversion station and valve control function, described current conversion station and the connected mode of controlling between protection and valve control function meet (3) or (4):
(3) in the current conversion station of described realistic model, have a current conversion station at least, corresponding control protection and valve control function are realized by actual device; This current conversion station with control protection and valve control device by interface hardware equipment connection, described interface hardware equipment is used for operation information and the control signal of Propagation Simulation model;
(4) in the current conversion station of described realistic model, have a current conversion station at least, corresponding control protection and valve control function build in realistic model; Operation information and control signal that this current conversion station receives or sends are transmitted by variable in emulator inside, deliver to and control protection and valve control module.
In such scheme: the control protection equipment that comprises Real Time Digital Simulator, interface hardware equipment and the flexible DC power transmission device based on modular multilevel; Real Time Digital Simulator is connected with interface arrangement, and interface arrangement is connected with valve control equipment with control protection; Realistic model operates in Real Time Digital Simulator, and Real Time Digital Simulator and control protection equipment carry out information interaction by interface arrangement.
In such scheme: the converter valve of realistic model is modular multilevel converter valve structure.
In such scheme: adopt direct current cables model to connect between current conversion station model.
Adopt after such scheme; the present invention adopts hardware to realize and software simulation control protection and valve control function simultaneously; by multiterminal flexible DC power transmission real-time emulation system huge structure, wiring complexity, debug difficulties, required hardware shortcoming how before improving, for controlling the exploitation of protection equipment and a kind of method that test provides reference and simplification based on modular multilevel containing the multiterminal flexible DC power transmission of new forms of energy access.
Accompanying drawing explanation
Fig. 1 controls to protect the multiterminal flexible DC power transmission real-time emulation system schematic diagram that simultaneously adopts hardware realization and software simulation with valve control function;
Fig. 2 controls protection to adopt hard-wired soft straight real-time emulation system schematic diagram with valve control function;
Fig. 3 is simulator, interface arrangement, control protection and valve control device detailed maps;
Fig. 4 is the soft straight real-time emulation system schematic diagram of controlling protection and the realization of valve control function employing software.
Embodiment
Below with reference to accompanying drawing, technical scheme of the present invention is elaborated.
As shown in Figure 1, the invention provides a kind of control and protect the multiterminal flexible DC power transmission real-time emulation system structure that simultaneously adopts hardware realization and software simulation with valve control function.In a soft lineal system of multiterminal, contain three or three above current conversion stations, have at least control protection and the valve control function of a current conversion station to be realized by actual hardware unit, current conversion station model is arranged in realistic model, and itself and the exchanges data of controlling between protection and valve control device realize by interface arrangement; Have at least control protection and the valve control function of a current conversion station to carry out software simulation by realistic model, current conversion station and control and protection system are all arranged in realistic model, and exchanges data between the two realizes by variable transmission.
As shown in Figure 2; controlling under the hardware implementation mode of protection and valve control; the metrical informations such as the switching tube conducting state of the voltage of current conversion station model, electric current, power, on off state, converter valve need to send to controls protection and valve control device, and control protection and valve control device needs the control informations such as transmit button instruction, converter valve submodule turn-on command to current conversion station model simultaneously.These interactive signals are all to realize by interface arrangement above.
Be illustrated in figure 3 and controlling under the hardware implementation mode of protection and valve control, the schematic diagram between realistic model current conversion station-interface arrangement-control protection and valve control device.Real Time Digital Simulator 1 is connected with interface arrangement 2, and interface arrangement 2 is connected with valve control equipment 3 with control protection.Realistic model operates in Real Time Digital Simulator, calculates the digital quantities such as the analog quantitys such as gained voltage, electric current and on off state, submodule state by the power amplifier in interface arrangement, terminal-type relay and expands board and carry out information interaction with control protection and valve control equipment.
As shown in Figure 4, controlling under the software simulation mode of protection and valve control, realistic model current conversion station, controlling protection and valve control function is all positioned at realistic model inside, without special configuration interface arrangement again.
By the way, the control protection module that the experiment works such as the control structure of control protective unit is built, parameter adjustment all can be take in model is reference, and confirmation mutually, has improved debugging efficiency and accuracy.
Above embodiment only, for explanation technological thought of the present invention, can not limit protection scope of the present invention with this, every technological thought proposing according to the present invention, and any change of doing on technical scheme basis, within all falling into protection domain of the present invention.

Claims (4)

1. multiterminal flexible DC power transmission is controlled an emulation test system for protection system, it is characterized in that:
(1) the control protection that comprises at least a set of reality and valve control device;
(2) realistic model of described emulation test system comprises three or three above current conversion stations; the corresponding a set of control protection of each current conversion station and valve control function, described current conversion station and the connected mode of controlling between protection and valve control function meet (3) or (4):
(3) in the current conversion station of described realistic model, have a current conversion station at least, corresponding control protection and valve control function are realized by actual device; This current conversion station with control protection and valve control device by interface hardware equipment connection, described interface hardware equipment is used for operation information and the control signal of Propagation Simulation model;
(4) in the current conversion station of described realistic model, have a current conversion station at least, corresponding control protection and valve control function build in realistic model; Operation information and control signal that this current conversion station receives or sends are transmitted by variable in emulator inside, deliver to and control protection and valve control module.
2. multiterminal flexible DC power transmission as claimed in claim 1 is controlled the emulation test system of protection system, it is characterized in that: the control protection equipment that comprises Real Time Digital Simulator, interface hardware equipment and the flexible DC power transmission device based on modular multilevel; Real Time Digital Simulator is connected with interface arrangement, and interface arrangement is connected with valve control equipment with control protection; Realistic model operates in Real Time Digital Simulator, and Real Time Digital Simulator and control protection equipment carry out information interaction by interface arrangement.
3. multiterminal flexible DC power transmission as claimed in claim 1 is controlled the emulation test system of protection system, it is characterized in that: the converter valve of realistic model is modular multilevel converter valve structure.
4. multiterminal flexible DC power transmission as claimed in claim 1 is controlled the emulation test system of protection system, it is characterized in that: between current conversion station model, adopt direct current cables model to connect.
CN201410448978.4A 2014-09-04 2014-09-04 Simulation test system of multi-terminal flexible direct current transmission control protection system Pending CN104199311A (en)

Priority Applications (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104764920A (en) * 2014-01-03 2015-07-08 国家电网公司 MMC flexible direct-current power transmission dynamic simulation experiment platform analog acquisition system and realizing method
CN106169739A (en) * 2016-07-22 2016-11-30 许继集团有限公司 A kind of flexible direct current power network line relaying configuration method and device
CN106681168A (en) * 2015-11-10 2017-05-17 国网智能电网研究院 Decoupling method for MMC converter valve digital-analog hybrid simulation interface network
CN109683583A (en) * 2018-11-23 2019-04-26 国网安徽省电力有限公司电力科学研究院 The test macro of converter valve protective device based on control protection decoupling

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103176470A (en) * 2013-02-26 2013-06-26 南京南瑞继保电气有限公司 Experimental system and method for MMC (multilevel modular converter) flexible direct-current transmission control protection equipment
CN103268117A (en) * 2013-04-25 2013-08-28 中国南方电网有限责任公司电网技术研究中心 MMC flexible direct-current control device testing system and method based on RTDS
CN103427412A (en) * 2013-08-23 2013-12-04 南京南瑞继保电气有限公司 Multi-terminal flexible direct-current transmission system and failure control method
CN103439967A (en) * 2013-08-23 2013-12-11 南方电网科学研究院有限责任公司 Closed loop test system of flexible direct current transmission control protection system
CN103675534A (en) * 2013-11-30 2014-03-26 许继电气股份有限公司 System and method of testing flexible direct-current transmission valve control equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103176470A (en) * 2013-02-26 2013-06-26 南京南瑞继保电气有限公司 Experimental system and method for MMC (multilevel modular converter) flexible direct-current transmission control protection equipment
CN103268117A (en) * 2013-04-25 2013-08-28 中国南方电网有限责任公司电网技术研究中心 MMC flexible direct-current control device testing system and method based on RTDS
CN103427412A (en) * 2013-08-23 2013-12-04 南京南瑞继保电气有限公司 Multi-terminal flexible direct-current transmission system and failure control method
CN103439967A (en) * 2013-08-23 2013-12-11 南方电网科学研究院有限责任公司 Closed loop test system of flexible direct current transmission control protection system
CN103675534A (en) * 2013-11-30 2014-03-26 许继电气股份有限公司 System and method of testing flexible direct-current transmission valve control equipment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104764920A (en) * 2014-01-03 2015-07-08 国家电网公司 MMC flexible direct-current power transmission dynamic simulation experiment platform analog acquisition system and realizing method
CN104764920B (en) * 2014-01-03 2018-05-29 国家电网公司 MMC flexible direct-current transmission of electricity dynamic model experiment platform simulation quantity collection system and implementation method
CN106681168A (en) * 2015-11-10 2017-05-17 国网智能电网研究院 Decoupling method for MMC converter valve digital-analog hybrid simulation interface network
CN106169739A (en) * 2016-07-22 2016-11-30 许继集团有限公司 A kind of flexible direct current power network line relaying configuration method and device
CN106169739B (en) * 2016-07-22 2019-01-29 许继集团有限公司 A kind of flexible direct current power network line relaying configuration method and device
CN109683583A (en) * 2018-11-23 2019-04-26 国网安徽省电力有限公司电力科学研究院 The test macro of converter valve protective device based on control protection decoupling

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Owner name: NANJING NARI-RELAYS ENGINEERING TECHNOLOGY CO., LT

Free format text: FORMER OWNER: NANJING NARI-RELAYS ENGINEERING TECHNOLOGY CO., LTD. STATE GRID ZHEJIANG ELECTRIC POWER COMPANY

Effective date: 20150506

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Address after: 211106 Jiangning Province Economic and Technological Development Zone, Jiangsu City, No. Sheng Tai Road, No. 99

Applicant after: Nanrui Relay Protection Electricity Co., Ltd., Nanjing

Applicant after: Nanjing Nari-Relays Engineering Technology Co., Ltd.

Applicant after: State Grid Zhejiang Electric Power Company

Applicant after: Electric Power Research Institute of State Grid Zhejiang Electric Power Company

Address before: 211106 Jiangning Province Economic and Technological Development Zone, Jiangsu City, No. Sheng Tai Road, No. 99

Applicant before: Nanrui Relay Protection Electricity Co., Ltd., Nanjing

Applicant before: Nanjing Nari-Relays Engineering Technology Co., Ltd.

Applicant before: State Grid Zhejiang Electric Power Company

CB03 Change of inventor or designer information

Inventor after: Huang Xiaoming

Inventor after: Li Jihong

Inventor after: Li Yong

Inventor after: Zhu Chengzhi

Inventor after: Lu Yi

Inventor after: Tian Jie

Inventor after: Dong Yunlong

Inventor after: Hu Xianlai

Inventor after: Zhang Jing

Inventor after: Wang Ke

Inventor after: Li Gang

Inventor after: Hu Liexiang

Inventor before: Huang Xiaoming

Inventor before: Lu Yi

Inventor before: Tian Jie

Inventor before: Dong Yunlong

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Free format text: CORRECT: INVENTOR; FROM: HUANG XIAOMING LU YI TIAN JIE DONG YUNLONG HU XIANLAI ZHANG JING WANG KE LI GANG TO: HUANG XIAOMING LU YI TIAN JIE DONG YUNLONG HU XIANLAI ZHANG JING WANG KE LI GANG HU LIEXIANG LI JIHONG LI YONG ZHU CHENGZHI

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Application publication date: 20141210

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