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中文摘要：
针对三相有源电力滤波器（APF）应用于电源畸变环境下降低容量问题，分析了APF的补偿目标，通过对电源电压进行基波正序分解，得到基波有功功率及基波无功功率，并得了APF的补偿电流，提出电源电压基波正序的电源电流正弦化补偿策略，在电源畸变条件下准确获取了补偿除基波有功功率和基波无功功率之外其他功率的补偿参考电流，减少了APF的总电流和自身损耗，实现APF容量降低。仿真结果验证了所提控制策略的正确性及有效性，对传统低压配电网络电力滤波改造提供了一定的参考。
英文摘要：
Aiming to reduce the capacitance of three-phase active power filter （APF） in the condition of power distortion, the method of sinusoidal power current compensation strategy of power voltage fundamental posi- tive sequence is presented in this paper which through the analysis of compensation goals of APF, and using the decomposition of fundamental voltage positive sequence to get the fundamental active power and reactive power, and then get the compensation current of APF while the other compensated reference current can be got accurately except the fundamental active power and reactive power so that the whole current of APF may reduced, meanwhile the loss power is minimized, and the capacitance is abbreviated, and efficiency is promoted. Simulation results validate the correctness and efficiency, and provide a certain reference for the power filter transformation of low voltage distribution networks.
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