电力系统自动化2017，Vol.41Issue(5)：99-105,7.DOI:10.7500/AEPS20160521001
含多电压源型换流器配电网高频谐振特性分析
Analysis on High Frequency Resonance Characteristics of Distribution Network with Multiple Voltage Source Converters
摘要
Abstract
In order to uncover the characteristics and reduce the risk of high frequency resonance in distribution network with multiple voltage source converters (VSC),a novel approach to analyzing the high frequency resonance characteristics of distribution network with multiple VSCs is presented.Firstly,high order harmonic equivalent circuits of VSC are set up based on the harmonic analysis model with dynamic phasor sequence components (DPSCs).Thus the high frequency equivalent circuit model of the distribution network is obtained.Secondly,the port equivalent impedance of system and that of VSC are deduced,respectively.By analyzing the frequency characteristics of the port equivalent impedance,the high frequency resonance characteristics of distribution network with multiple VSCs can be derived.Thirdly,the high frequency resonance characteristics of different quantities of VSC integrated and configurations of the filters are analyzed.Finally,a simulation model for the distribution network with multiple VSCs is developed to testify the validity of the results.There is obvious high frequency resonance in the distribution network with multiple VSCs.The impact of the quantity integrated and the configurations of the filters on the resonance frequency is significant.Only by specifying the switch frequency and designation of filters of VSC,it will be possible to reduce the risk of the high frequency resonance in distribution network with multiple VSCs.关键词
配电网/电压源型换流器/谐波/谐振/等值电路Key words
distribution network/voltage source converter/harmonic/resonance/equivalent circuit引用本文复制引用
钟庆,冯俊杰,王钢,汪逍旻,李海锋..含多电压源型换流器配电网高频谐振特性分析[J].电力系统自动化,2017,41(5):99-105,7.基金项目
国家自然科学基金资助项目(51307061).This work is supported by National Natural Science Foundation of China (No.51307061). （51307061）
