期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
卷号：3
期号：3
页码：10685
出版社：S&S Publications
摘要：Interference due to harmonics, and generated by power electronic devices, has become a serious problem,because converters are nowadays more and more frequently used in transmission and distribution systems and in powerplants. The most natural, suitable way to solve these problems is the introduction of filtering actions. Passive LC filtershave long been used to absorb harmonic current of non-linear loads. Due to some disadvantages of passive filters theconcept of active filters were proposed. There are so many different controlling algorithms and topologies available foractive filter. Here Pulse Width Modulation based topology is used. This paper analyzes the comparative merits ofSinusoidal Pulse Width Modulation (SPWM) and Variable Index Pulse Width Modulation (VIPWM) techniques andthe suitability of these techniques in a Shunt Active Filter. The objective is to select the scheme which providesimproved output current harmonics. Simulation Results are presented in MATLAB/SIMULINK. Results show that theproposed method is effective cancel out the undesirable harmonics.
关键词：Shunt Active Power Filter; Pulse Width Modulation; voltage source inverter; power quality
