论文部分内容阅读
针对有源电力滤波器(APF)在大功率领域应用的问题,提出了一种适合于三相三线APF的并联运行策略,根据APF自身容量用优化输出方式补偿谐波电流,以达到大容量APF多补偿、小容量APF少补偿的目的,保证了多台APF并联运行的可行性和安全性。在此基础上提出了APF的并联控制策略,根据实际负载谐波电流投切APF。仿真和实验证明了基于容量极限负载按比例分配的有效性,以及协调控制策略在多台APF并联运行时的可行性。
Aiming at the problem of active power filter (APF) applied in high power area, a parallel operation strategy suitable for three-phase three-wire APF is proposed. According to APF’s own capacity, harmonic current is compensated by optimized output to achieve high capacity APF Multi-compensation, small-capacity APF less compensation purposes, to ensure that more than one APF parallel operation of the feasibility and security. Based on this, the parallel control strategy of APF is put forward, and the APF is switched according to the actual load harmonic current. Simulations and experiments show the effectiveness of proportional distribution based on capacity limit load and the feasibility of coordinated control strategy when multiple APFs are operated in parallel.