电力电子技术与谐波抑制、无功功率补偿技术研究综述

Review of Researches on Power Electronics and Harmonics Restraining,Var Power Compensation Technique

文章论述了电力电子技术在电力系统中的应用与发展 ,分析了无功功率的概念与高次谐波的危害 ;以及无功补偿与谐波抑制的现状 ,指出电力电子技术与无功补偿、高次谐波抑制是紧密相联的 ;对无源滤波技术的优劣进行了分析 ,阐述了有源滤波器的机理与实际应用进展 ,指出有源滤波器与无源滤波器的结合相关抑制技术可以相互取长补短 ,对基于电力电子技术的有源功率因数校正器的工作机理、特点、系统构成作了简单介绍 ;分析了解决谐波和无功问题的一些新技术和发展动向 ,文章得出了合理的结论。

The application of power electronic promotes neoteric power system, however, it also bring serious harmonic pollution, In this paper the harmfulness of the var power and the high-order harmonic of the power system are discussed. It points out that the status of var compensation is tightly dependent upon the harmonic restraining; the paper analyses the advantages and disadvantages of passive power filter technology and simply introduces the system forming and working principals of active power filter. The applied actualities and developnent forecasts of power electronic in power system, the funfdemental principle and of APFC based power electronics are discussed in this article. The paper also analyses some new technologies and tendency to solve var compensation and harmonic restraining problem, and draws some reasonable conclusion.