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Static var compensator controlling device for improving system transient stability

A technology for static reactive power compensation and transient stability, which is applied in reactive power adjustment/elimination/compensation, flexible AC power transmission systems, etc., and can solve problems such as ensuring the transient stability of power transmission systems

Inactive Publication Date: 2015-08-19
XI'AN POLYTECHNIC UNIVERSITY
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Problems solved by technology

[0006] Aiming at the defects of the transient stability control technology of the current power transmission system, the purpose of the present invention is to provide a static var compensator control device for improving the transient stability of the system, so as to overcome the system modeling existing in the prior art. Given the known system parameters and structure, it is difficult to ensure the transient stability of the transmission system in the case of unknown parameters and disturbances

Method used

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  • Static var compensator controlling device for improving system transient stability
  • Static var compensator controlling device for improving system transient stability
  • Static var compensator controlling device for improving system transient stability

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Embodiment 1

[0034] Such as figure 1 , figure 2 As shown, a static var compensator control device that improves the transient stability of the system. The SVC device installed in the power transmission system is a fixed capacitor-thyristor controlled reactor (FC-TCR) type. The control device includes a measurement module 1, an AC analog input module 2, a state space conversion module 3, a control module 4, a state space inverse conversion module 5, a thyristor trigger and control module 6, and an SVC device module 7. The input terminal of measurement module 1 is connected to the power transmission system, the output terminal of measurement module 1 is connected to the input terminal of AC analog input module 2, the output terminal of AC analog input module 2 is connected to the input terminal of state space conversion module 3, and the output terminal of state space conversion module 3 is terminal is connected to the input terminal of the control module 4, the output terminal of the cont...

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Abstract

A static var compensator controlling device for improving the system transient stability is characterized by comprising a measurement module, an AC analogy quantity input module, a state space transition module, a control module, a state space reverse transition module, a thyristor trigger and control module and a SVC (Static Var Compensator) device module.

Description

technical field [0001] The invention relates to the field of improving the transient stability control of a power transmission system through a static var compensator, in particular to a static var compensator control device for improving the system transient stability. Background technique [0002] At present, my country has developed a super-large-scale power system. The important characteristics of the development of the transmission system are large capacity, ultra-high voltage, long-distance, and multiple loads. At the same time, the complexity of the grid structure and operating conditions has increased, and the stability of the system has become increasingly prominent. In this situation, the traditional method of installing a power system stabilizer (PSS) in the transmission system can no longer meet the requirements of stable operation of the power system. With the development of power electronics technology, especially based on the progress of thyristor technology, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/18
CPCY02E40/10
Inventor 张蕾景军锋张爱民李鹏飞王晓华张宏伟
Owner XI'AN POLYTECHNIC UNIVERSITY
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