基于改进的滞环控制策略的并联型有源电力滤波器仿真研究

Simulation Research of SAPF Based on Improved Hysteresis Control Strategy

针对并联型有源电力滤波器采用三角载波控制策略和滞环控制策略存在的问题,提出了一种基于改进的滞环控制策略的并联型有源电力滤波器的设计方案,分析了并联型有源电力滤波器的系统结构与原理,介绍了基于瞬时无功功率的ip、iq谐波检测方法,给出了改进的滞环控制策略的控制原理。仿真结果表明,该有源电力滤波器具有良好的谐波电流补偿性能。

In view of the problems existed in triangular carrier control strategy and hysteresis control strategy used by SAPF,the paper proposed a design scheme of SAPF based on improved hysteresis control strategy.It analyzed structure and principle of SAPF system,introduced i_p、i_q harmonic detection method based on instantaneous reactive power and gave control principle of the improved hysteresis control strategy.The simulation result showed that the SAPF has good performance of harmonic current compensation.