中国电机工程学报2015，Vol.35Issue(19)：4888-4894,后插3,8.DOI:10.13334/j.0258-8013.pcsee.2015.19.006
谐波对HVDC系统换相失败的影响机理及定量分析方法
Mechanism and Quantitative Analysis Method for HVDC Commutation Failure Resulting From Harmonics
摘要
Abstract
Decrease of voltage and voltage distortion is the main reason causing commutation failure. At present, the study on commutation failure is mostly based on the change of fundamental voltage, while the voltage distortion is neglected. The voltage distortion which is mainly caused by harmonic voltage may result in the power oscillation and commutation failure. This paper proposed a method for commutation failure analysis based on harmonic voltage time area. The method can quantitatively analyze the influence of harmonic voltage for commutation failure. Research shows that the influence of harmonic voltage on commutation failure is decided by the harmonic amplitude, phase and other factors. Low order harmonics play a major role in commutation failure process. This paper also finds that the voltage distortion caused by harmonics is an important reason for follow-up commutation failure and the power fluctuation during the DC recovery process. The correctness of theoretical analysis was proved by PSCAD/EMTDC simulation results.关键词
高压直流输电/换相失败/电压畸变/谐波/机理分析/换相电压时间面积Key words
HVDC/commutation failure/voltage distortion/harmonics/mechanism analysis/commutation voltage time area分类
信息技术与安全科学引用本文复制引用
王峰,刘天琪,周胜军,李兴源,乔光尧..谐波对HVDC系统换相失败的影响机理及定量分析方法[J].中国电机工程学报,2015,35(19):4888-4894,后插3,8.基金项目
国家自然科学基金重点项目(51037003) （51037003）
国家电网公司科技项目(SGRIDL7114006). Project Supported by National Natural Science Foundation of China (51037003) （SGRIDL7114006）
State Grid Corporation of China Project (SGRIDL7114006). （SGRIDL7114006）
