电气传动2011，Vol.41Issue(3)：32-37,6.
并联有源电力滤波器的调制误差补偿策略研究
Research on Modulation Error Analysis and Compensation Strategy for Shunt Active Power Filter
梅广益 1俞红祥1
作者信息
- 1. 浙江师范大学,交通学院,浙江,金华,321004
- 折叠
摘要
Abstract
The modulation error model of central symmetrical regular sampling for digitalized shunt active power filter (APF) controller was deduced using Fourier transformation for output pulse series function of voltage source inverter. Furthermore,a quasi-natural sampling pulse width modulation (PWM) method based on adaptive prediction algorithm was carried out and employed to precisely approach natural sampling modulation process,hence to efficiently suppress the phase excursion and waveform distortion of harmonic compensation current comparing with ideal reference signal in shunt APF. Consequently the general harmonic elimination performance for nonlinear load was enhanced evidently. The proposed adaptive prediction algorithm obtains good precision and fast dynamic response in computer simulation of Matlab. Experimental results observed from a 7. 5 kV ·A laboratory prototype is also given to verify the validity and feasibility of the proposed scheme,which shows that it emerges good prospect in harmonic compensation performance enhancement for shunt APF.关键词
有源电力滤波器/谐波补偿/调制误差/电能质量Key words
active power filter/ harmonic compensation/ modulation error/ power quality分类
信息技术与安全科学引用本文复制引用
梅广益,俞红祥..并联有源电力滤波器的调制误差补偿策略研究[J].电气传动,2011,41(3):32-37,6.
