电力系统及其自动化学报2019，Vol.31Issue(2)：80-88,9.DOI:10.3969/j.issn.1003-8930.2019.02.013
多逆变器串联发电系统中的死区效应分析
Analysis of Dead-time Effect in Series Multi-inverter Generation System
摘要
Abstract
The dead-time effect in a series multi-inverter generation system under carrier phase shift SPWM modulation is studied. First,the ideal output voltage of the generation system is deduced,and the mathematical model of dead-time in the generation system is established by the method of equal area approximation theory combined with Fourier analy?sis. Second,by adding the dead-time voltage to the ideal output voltage,the influence of dead-time effect on the output voltage from the generation system is analyzed when the modulation ratio or carrier ratio changes. On this basis,a dead-time compensation method based on the variation of carrier ratio is proposed. Finally,simulations are conducted based on MATLAB/ SIMULINK,and results show that this analysis method for dead-time effect is effective,and the pro?posed dead-time compensation method can effectively diminish the influence of dead-time on the output voltage and cur?rent from the series multi-inverter generation system.关键词
死区效应/逆变器串联/发电系统/调制度/载波比/死区补偿Key words
dead-time effect/series multi-inverter/generation system/modulation ratio/carrier/dead-time compensation分类
信息技术与安全科学引用本文复制引用
王兴贵,李巍,朱奇先..多逆变器串联发电系统中的死区效应分析[J].电力系统及其自动化学报,2019,31(2):80-88,9.基金项目
海南电网有限责任公司科技资助项目(070000KK52170009) （070000KK52170009）
