From simulation we can see that the lower of the digital low pass filter ' s cut off frequency , the smaller of the instruction current ' s aberration . experience from foreign country show that active power filter has good application foreground . so its research and application is very important in the future 本文还重点讨论了数字低通滤波器的设计及其截至频率对指令电流精度的影响,通过仿真得出结论:数字低通滤波器的截止频率越低,基波有功电流的畸变就越小,从而基波有功电流减去负载电流求得的指令电流的误差也越小。
有功: have rendered great service; ...电流: electric current【物理学】有功电流。: active current有功电度表: active)energy meter有功电容: active capacitance有功电压: active voltage有功电压降: ohmic drop; resistance drop无功电流: current wattless; idle current; wattless current; no load current; reactive current; wattless current无功电流计: reactive current meter; reactive-current meter有功电路网络方程: active circuit mesh equation无功电流补偿: reactive current compensation无功电流分量: reactive current component级静止式交流有功电度表: alternating current static watthour meters for active energyy三相三线有功电度表: three-phase three-wire kilowatt-hour meter; three-phase three-wire watt-hour meter三相四线有功电度表: three-phase four-wire watt-hour meter电流有功分量: effective component of current无功电流补偿器: reactive current compensator无功电流发生器: reactive current generator无功电流限制保护: reactive current limiting protection有功: have rendered great service; have performed meritorious service 有功部队 troops with a fine record service; meritorious army unit; 对革命有功 have rendered service to the revolution; have made contributions to the revolution马有功: ma yougong有功的: active; deserving; meritorious; wattful有功功: wattful power有功于: deserve well of全功电度表: apparent energy meter