基于虚拟电阻方法的并联型有源电力滤波器输出滤波器的研究  

Research of Parallel Active Power Filter Output Filters Based on Virtual Resistance Method

作　　者：张国荣[1] 赵广磊[1] 李宗钧[1] 

机构地区：[1]教育部光伏系统工程研究中心合肥工业大学能源研究所,安徽合肥230009

出　　处：《低压电器》2011年第17期52-56,60,共6页Low Voltage Apparatus

基　　金：国家自然科学基金项目(50777015;50837001)

摘　　要：基于电阻并联电容消谐法提出了一种新的虚拟电阻并联电容方法。该方法既能取代实际电阻消除谐振,又不消耗能量,提高了系统的效率。分析了整个系统的稳定性,最后做了仿真对比验证,通过调节反馈系数K,能够使经APF补偿后的电源电流THD降低到2.47%左右,证明该方法的有效性。A new virtual resistance parallel capacitor method based on resistance paralleling capacitor harmonic elimination method was proposed.The method not only can replace the actual resistance to eliminate resonance,but also does not consume energy,and it improved the efficiency of the system.The stability of the system was analyzed,the simulation was done to compare it.By adjusting the feedback factor K,this method can make the supply current THD reduce to about 2.47% after compensation by the APF.The result proves the validity of the method.

关 键 词：并联型有源电力滤波器 LCL滤波器 虚拟电阻并联电容法 谐振尖峰 损耗 

分 类 号：TM713.8[电气工程—电力系统及自动化]