【摘要】 对一种由非线性负载产生的谐波电流的全部或特定频率进行补偿的并联型有源电力滤波器进行了研究,并应用数字信号处理器(DSP)对其进行混合型控制,可以容易地检测和验证对不同电流或直流电压控制算法的正确性.还应用正序检测器来减少传统的p-q算法在不对称情况下的延时.经试验研究分析,证明了这种设计和控制策略的有效性.更多还原

【Abstract】 The authors studied a shunt active filter which compensates all or a specified mains current harmonics generated by a non-linear load.The control is of mixed type and contains a digital signal processor(DSP).It can test and validate easily different current or DC voltage control algorithms.A fundamental positive detector is constructed to enlarge the functions of the well known pq algorithm with several asymmetries conditions taking into account time delays. The system is investigated analytically as well as experimentally.The obtained results show the effectiveness of the design and control strategy.更多还原