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Robust fault-tolerant control module, method and system based on residual generator

A fault-tolerant control and generator technology, applied in general control systems, control/regulation systems, adaptive control, etc., can solve problems such as voltage and power quality problems of three-phase inverters, solve voltage and power quality problems, reduce voltage The effect of fluctuation, reduction of harmonic content and unbalance

Active Publication Date: 2020-11-27
UNIV OF SCI & TECH BEIJING +1
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Problems solved by technology

[0007] The purpose of the present invention is to provide a robust fault-tolerant control module, method and system based on a residual generator, which can solve the problem of voltage and power quality of three-phase inverters

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Embodiment Construction

[0062] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0063] The purpose of the present invention is to provide a robust fault-tolerant control module, method and system based on a residual generator, which can solve the problem of voltage and power quality of three-phase inverters.

[0064] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specif...

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Abstract

The invention relates to a robust fault-tolerant control module, method and system based on a residual generator. The method comprises the following steps of: constructing a robust fault-tolerant control architecture of a three-phase inverter based on a residual generator, wherein the robust fault-tolerant control architecture of the three-phase inverter based on the residual generator comprises acompensation controller; on the basis of the robust fault-tolerant control architecture of the three-phase inverter based on the residual generator, constructing a mathematical model containing renewable energy distributed power supply inverter voltage and current double closed-loop control and an LC filter circuit, and a residual generator based on an observer; determining an optimized compensation controller according to the compensation controller and the observer-based residual generator; and controlling a control object according to the optimized compensation controller and controller. According to the invention, the voltage and power quality problem of the three-phase inverter can be solved.

Description

technical field [0001] The invention relates to the field of robust fault-tolerant control, in particular to a robust fault-tolerant control module, method and system based on a residual generator. Background technique [0002] The research on new energy has attracted more and more scholars' attention. Aiming at uncertain factors such as the intermittency and volatility of distributed micro-sources, micro-grids can better distribute and solve the problem of micro-sources connecting to the power grid. The three-phase inverter is a key power electronic device in the new energy micro-grid system, which directly affects the stability, reliability and power quality of the distributed micro-source system power supply. Therefore, the robust control method of the inverter with good robust performance has important research significance. [0003] In order to improve the power quality of the inverter output voltage in the microgrid, since the traditional way of passively controlling ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 罗珊娜彭开香胡长斌周京华朴政国景柳铭
Owner UNIV OF SCI & TECH BEIJING
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