高电压技术2012，Vol.38Issue(2)：483-489,7.
有源逆变器的改进非对称脉宽调制策略
Improved OPUS Modulation Used in Active Inverter Under DC Ripple
摘要
Abstract
In order to decrease switch frequency and eliminate parasitic output harmonic voltage,an optimal partly unsymmetrical switching angle（OPUS） method,which was based on selective harmonic elimination pulse-width modulation（SHEPWM） and improved switch function,was offered for active inverter with DC-link ripple.The research results indicate that new OPUS can eliminate the unwanted 3rd and 7th output harmonic voltages but maintain the fundamental and 5th output voltages to the set values even though there is 15% 2nd harmonic on the dc bus voltage.Simulation results further confirm that the validity of the proposed switching strategy can be used in high power active inverter system,and can improve the VSC output voltage during dc bus ripple.关键词
半周期对称/脉冲宽度调制/电压源换流器/二倍频波动/特定谐波消除/改进开关函数Key words
half-wave symmetry/pulse width modulation/voltage-source converter（VSC）/double line-frequency ripples/selective harmonic elimination/improved switching function modulation分类
信息技术与安全科学引用本文复制引用
苏毅,张慧,刘开培,仰彩霞..有源逆变器的改进非对称脉宽调制策略[J].高电压技术,2012,38(2):483-489,7.基金项目
国家自然科学基金（50977068）~~ （）
