基于混合有源滤波器的准比例谐振控制策略
Quasi-proportional Resonance Control Strategy Based on Hybrid Active Power Filter
刘晓悦 1马浩珂1
作者信息
- 1. 华北理工大学电气工程学院,河北 唐山 063210
- 折叠
摘要
由于电力电子设备、软启动器及各个非线性负荷的大量使用导致电网中谐波问题日趋加重,针对并联型混合有源电力滤波器(HAPF)谐波抑制控制策略进行研究.在这个拓扑结构的基础上,首先建立其数学模型并设计准比例谐振控制器和比例积分控制器进行仿真.针对传统的比例积分控制方法补偿精度低,并且对交流信号不能实现无静差跟踪等效果不理想问题,提出了电流内环准比例谐振控制与混合有源电力滤波器直流侧电压外环比例积分控制器相结合的控制策略.在Mat-lab/Simulink中搭建模型,仿真结果显示,上述控制策略能够补偿由非线性负载带来的谐波电流,补偿后的电网电流总谐波失真(THD)降到 3.68%,符合国家标准.
Abstract
Due to the large use of power electronic equipment,soft starter and various nonlinear loads,the harmon-ic suppression control strategy of shparallel hybrid active power filter(HAPF)was studied in this paper.On the basis of this topology,the mathematical model was established and the quasi-proportional resonance controller and propor-tional integral controller were designed for experimental simulation.In order to solve the problems of low compensation accuracy and non-static error tracking of AC signal,a control strategy combining the current inner loop quasi-propor-tional resonance control and the hybrid active power filter dc side voltage outer loop proportional integral controller was proposed.The model was built on Matlab/Simulink.The simulation and experimental results show that the pro-posed control strategy can compensate harmonic current caused by nonlinear load,and the total harmonic distortion(THD)of power grid current after compensation is reduced to 3.68%,which meets the national standard.
关键词
混合有源电力滤波器/比例积分控制/准比例谐振控制/总谐波失真Key words
Hybrid active power filter/Proportional integral control/Quasi-proportional resonance control/Total harmonic distortion引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据