电测与仪表Issue(7)：65-69,5.
自消除中点电位波动的NPC三电平并联有源滤波器
NPC Three-Level Shunt Active Filter with Neutral-Point Potential Fluctuation Self-Elimination
摘要
Abstract
Shunt active power filter is an important part of power grid in harmonic control. Neutral point clamped ( NPC) three-level shunt active filter is applicable for current harmonic compensation in high-power, high-voltage situ-ation. To address the problem of neutral-point potential fluctuation in traditional NPC three-level shunt active filter, a structure of NPC three-level shunt active filter with neutral-point potential fluctuation self-elimination is proposed. A controlled voltage source is stringed between DC side neutral-point and three-phase bridge arm neutral-point, which is used to give a real-time compensation for the neutral-point potential fluctuation by controlling output voltage of the con-trolled voltage source. Simulation results show that the proposed structure can effectively eliminate neutral-point poten-tial fluctuation, and the system has good dynamic performance and high practical value.关键词
并联有源滤波器/三电平/中点电位Key words
shunt active filter/three-level/neutral-point electric-potential分类
信息技术与安全科学引用本文复制引用
钱鹏,刘国海,陈兆岭,钱鞠,沈跃..自消除中点电位波动的NPC三电平并联有源滤波器[J].电测与仪表,2014,(7):65-69,5.基金项目
国家自然基金资助项目(61301138) （61301138）
