摘要
针对传统的比例积分PI控制在有源电力滤波器电流跟踪控制中动态响应慢和补偿电流与实际补偿电流误差大而谐波补偿效果不理想问题,为了提高有源电力滤波器的谐波补偿性能,加快动态响应速度,提出了模糊调节参数在线整定与递推积分PI控制相结合的控制算法。设计的算法结合了递推积分PI控制对采样点误差逐个周期积分的特点和PI参数模糊自适应在线整定算法的优点,MATLAB仿真实验表明:本文方法比传统PI控制谐波含量降低了4.59%,证明了新算法的可行性与正确性。
In this paper,the harmonic compensation effect caused by traditional PI controller in the current tracking control of active power filter（APF） is not ideal,the dynamic response is slow and the compensation deviation is large.In order to improve the harmonic compensation performance and the dynamic response speed of APF,a new control algorithm is proposed by combining the parameters online fuzzy tuning and recursive integral PI control algorithm.New algorithm utilizes the characteristic of integrating the deviation of each sample-point of the recursive integral PI control and the adaptive merits of the parameters online tuning algorithm.The simulation results show that,by comparing with traditional PI control,the harmonic content of this method is reduced by 4.59%,and the feasibility and accuracy of this method are proved.
出处
《辽宁科技大学学报》
CAS
2013年第2期151-155,共5页
Journal of University of Science and Technology Liaoning
