State feedback control method for reactive power compensator of municipal electric power system

Abstract

The invention provides a state feedback control method for a reactive power compensator of a municipal electric power system. According to the method, firstly, a discrete time fuzzy state equation of the reactive power compensator is established; secondly, a fuzzy state feedback controller is provided; a parameter matrix of the fuzzy state feedback controller is calculated offline; the fuzzy state feedback controller is utilized to carry out online control on the reactive power compensator, and reactive power compensation is realized. Through the method, a non-linear item processing technology problem in a reactive power compensator physical system is effectively solved, high-precision state feedback control on the reactive power compensator can be guaranteed, operation conditions of the power-supply network are improved, electric power nuisance is processed, reliability of a transmission and distribution system is improved, a system overlarge voltage is inhibited, dynamic characteristics of the system are improved, harmonic wave inhibition is realized, harmonic wave pollution to electric energy and voltage flickering are reduced, the system voltage is stabilized, reactive compensation can be rapidly tracked, and power factors are improved.

Description

technical field [0001] The invention belongs to the design field of a control system of a reactive power compensation device of a municipal comprehensive utility gallery power system, and in particular relates to a state feedback control method of a reactive power compensation device of a municipal power system. Background technique [0002] TCR type high-voltage static dynamic reactive power compensation device is widely used in municipal distribution networks such as comprehensive utility tunnels. Voltage, 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 adjustment and monitoring of the TCR type SVC device with a voltage level of 6KV ...

AI Technical Summary

Problems solved by technology

However, due to the strong nonlinear characteristics of the actual TCR high-voltage static dynamic var compensation device system, the conventional linear state feedback control method is not practical; in addition, the conventional fuzzy state feedback control method is very conservative. When applying it to the state feedback control of the TCR high-voltage static dynamic reactive power compensation device, it is often impossible to obtain a feasible solution

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