中文摘要：

对谐波/间谐波统一补偿的单相有源电力滤波器（active power filter,APF）系统进行了瞬时功率分析,研究了电网侧、APF主电路、负载侧之间的功率流动,证明了在不考虑APF主电路损耗的情况下,其直流侧功率波动具有周期性。推导了统一补偿的单相并联型APF的无源性控制策略方程,并针对其欠激励特性及直流侧功率波动的周期性设计了直流侧电压的间接控制。然后,针对其启动中遇到的问题,从功率平衡角度进行了分析并提出了解决方法。Matlab仿真实验结果验证了理论分析的正确性。

英文摘要：

Instantaneous power analysis of single-phase active power filter （APF） system among the power grid side, the load side and the APF side was done in consideration of harmonic and inter harmonic unity compensation. It shows the power flow of the APF＇s DC side fluctuations with a periodicity when the APF＇s main circuit losses is not considered. The passive control strategy equation was derived and the indirect control of DC voltage for APF was designed to solve the less incentive characteristics of the equation. In order to solve the problem encountered when it starts, a new method in the perspective of the power balance was proposed. The Matlab simulation results show that the proposed design is effective for solving the problem when APF starts and the harmonic and inter harmonic compensation effect can meet the requirements.