摘要
SHEPWM调制方法在指定频率上消除谐波,通常设定将低频段次的谐波消除到零。但是,SHEPWM调制方法的使用会在非指定谐波消除区域出现较大幅度谐波。针对这一缺点,文章使用了一种优化型LCL滤波器。在传统LCL滤波器滤波电容支路上并联谐振LC支路,滤除了SHEPWM调制固有的大幅度谐波,弥补了SHEPWM调制的这一固有缺陷。
The SHEPWM modulation could eliminate the specified-frequency harmonics,and usually the lowfrequency harmonics were expected to be zero.However,the use of the SHEPWM modulation method would cause large harmonics in the non-specified harmonic elimination region.To solve this problem,an optimized LCL filter was used in this paper.The resonant LC branch in parallel with the capacitor branch of the traditional LCLfilter could filter out the inherent large harmonic of SHEPWM modulation and make up for the fixed defect of SHEPWM modulation.
作者
裴静
钱向
PEI Jing;QIAN Xiang(Jiangsu Xishan Technical Secondary School,Wuxi,Jiangsu 214191,P.R.China)
出处
《微电子学》
CAS
北大核心
2021年第5期706-711,共6页
Microelectronics
基金
江苏省自然科学基金资助项目(BK20170436)
无锡市职业教育创新发展专项课题(82020026)。
