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Power system reactive power compensator dynamic output feedback control method

A compensation device and dynamic output technology, which is applied in reactive power compensation, reactive power adjustment/elimination/compensation, circuit devices, etc., can solve problems such as impractical non-linear characteristics of devices and unmeasurable state vectors of control systems

Inactive Publication Date: 2016-01-06
WISDRI ENG & RES INC LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the physical limitations of the actual system, the state vector of the control system is often unmeasurable, and what is more unfavorable is that the nonlinear characteristics of the device itself also make the conventional state estimation method impractical

Method used

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  • Power system reactive power compensator dynamic output feedback control method
  • Power system reactive power compensator dynamic output feedback control method
  • Power system reactive power compensator dynamic output feedback control method

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with specific examples and accompanying drawings.

[0026] figure 1 It is a method flowchart of an embodiment of the present invention, a dynamic output feedback control method of a reactive power compensation device in a power system, characterized in that it includes the following steps:

[0027] S1. Establish the discrete-time fuzzy state equation of the reactive power compensation device:

[0028] x ( k + 1 ) = Σ i = 1 r h i ( ...

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Abstract

The invention provides a power system reactive power compensator dynamic output feedback control method which establishes a discrete time fuzzy state equation of a reactive power compensator by using fuzzy modeling technology and effectively solves a nonlinear item processing technical problem in a reactive power compensator physical system. A fuzzy dynamic output feedback controller different from a product in the prior art is provided. The method considers system state information at the time k-1 for the first time, fully considers the physical characteristics of the reactive power compensator, gives a parameter matrix solve condition of the fuzzy dynamic output feedback controller in the form of a linear matrix inequality, guarantees a high-precision reactive power compensator control effect, achieves fast reactive power compensation, effectively suppresses voltage fluctuation and flickering, reduces harmonic in a power system, and increases a power factor.

Description

technical field [0001] The invention belongs to the field of control system design of a reactive power compensation device of a power system in the metallurgical industry, and in particular relates to a dynamic output feedback control method of a reactive power compensation device of a power system. Background technique [0002] TCR high-voltage static dynamic reactive power compensation device is widely used in high-voltage, ultra-high-voltage AC-DC power transmission systems and metallurgical and other industrial distribution networks. Reliability, suppress system overvoltage, improve its dynamic characteristics, suppress harmonics, reduce pollution and voltage flicker caused by harmonics to electric energy, stabilize system voltage, quickly track reactive power compensation, and improve power factor. [0003] The reactive power compensation control system of the TCR type high-voltage static dynamic reactive power compensation device is suitable for the automatic adjustmen...

Claims

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Application Information

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IPC IPC(8): H02J3/18
CPCH02J3/00H02J3/18H02J2203/20Y02E40/30
Inventor 赵昊裔
Owner WISDRI ENG & RES INC LTD
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