单相有源电力滤波器直流侧电容与电压波动关系分析及设计  

Analysis of Relationship Between DC Side Capacitor of Single-phase Active Power Filter and Voltage Fluctuation and Capacitance Design

作　　者：张国荣[1] 沈奇[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,安徽省合肥市230009

出　　处：《电力系统自动化》2015年第4期110-115,共6页Automation of Electric Power Systems

基　　金：国家高技术研究发展计划(863计划)资助项目(2011AA05A107);广东省引进创新科研团队计划资助项目(2011N015)~~

摘　　要：并联型有源电力滤波器(PAPF)直流侧电容是其正常运行所必需的能量储存设备,其大小直接影响到PAPF的谐波补偿效果。针对单相PAPF直流侧电容与电压波动关系这一问题,通过瞬时功率流分析得到对直流侧电压波动有影响的功率分量,并在特定的负载条件下对该功率分量进行积分得到电容能量波动精确值,推导出在一定补偿容量和电容电压波动幅值下电容容量的数值。仿真和实验结果证实了该方法的正确性和可行性。As energy storage device,the DC side capacitor is required for the normal operation of the parallel active power filter （PAPF）,which directly affects the harmonic compensation effect of PAPF.Aiming at the problem of the relationship between DC side capacitor of single-phase PAPF and voltage fluctuation,an approach is presented according the analysis of power components which have influence on the fluctuation of DC voltage through the instantaneous power flow.And the capacitor energy fluctuation precision value is obtained by integrating the power components under the specific load conditions.The capacitance under a certain compensation capacity and capacitor voltage fluctuation amplitude value are derived.Simulation and experiment results confirm the validity and feasibility of the method.

关 键 词：并联型有源电力滤波器 直流侧电容 谐波补偿 瞬时功率 

分 类 号：TM761[电气工程—电力系统及自动化] TN713.8[电子电信—电路与系统]