单周控制在有源电力滤波器不同拓扑中的应用比较

The comparison of one-cycle control applied in different topologies of active power filter

单周控制有源电力滤波器由于不需要检测电源电压和负载电流,不需要使用乘法器,因而降低了成本,简化了电路结构。近年来,基于单周控制的单相、三相有源电力滤波器已受到广泛关注,在传统控制方法的基础上,很多改进控制方法能够更好地提高其补偿性能。介绍了单周控制在单相、三相有源电力滤波器中应用的各种拓扑和控制策略,并对它们的优缺点及应用场合进行了比较。

Active power filter with one-cycle control reduces cost and simplifies circuit structure, because it eliminates the need of detecting AC line voltage, load current, and also no need for multipliers. In recent years, one-cycle control applied to single-phase and three-phase APF has been attracted much attention, and many improved control methods based on the traditional control methods can enhance APF compensation performance better. In this paper, various topologies and control strategies of one-cycle control applied to single-phase and three-phase APF are introduced, and the advantages and disadvantages as well as application occasion are compared.