基于模糊变步长自适应谐波检测算法的研究  

Fuzzy Variable Step-size Adaptive Algorithm for Harmonic Current Detection

作　　者：马垚[1] 曲轶龙[1] 

机构地区：[1]华北电力大学电气与电子工程学院,北京102206

出　　处：《现代电力》2008年第2期1-5,共5页Modern Electric Power

基　　金：北京市自然科学基金项目(3062018)

摘　　要：提出了一种新的基于模糊控制理论的变步长自适应算法,将其应用于有源全补偿消弧控制的谐波电流检测中,得到很好的效果。模糊推理算法适合于强非线性、强不稳定性系统,自适应算法具有良好的自学习和自调整能力,本文提出的新算法将两者结合在一起,实现优势互补,解决了传统LMS算法跟踪速度和稳态误差之间的矛盾,既具有较快的动态响应速度,又保持较小的稳态误差,滤波性能得到改善,而且计算量小。实验和仿真验证了该方法的有效性和优越性。A new theory is proposed based on fuzzy control variable step-size adaptive algorithm. It is applied to active control of the entire compensation arc-suppression harmonic current detection and gets good results. Fuzzy inference algorithm is suitable for such a strongly nonlinear and instable power system, and adaptive algorithm has good serf-learning and self-adjusting abilities. The new algorithm combines each other＇s advantages to solve the traditional LMS algorithm＇s conflict between the tracking speed and the steady-state error, as well as with fast dynamic response speed, but also maintains smaller steady-state error, the filter wave performance is improved with small amount of computation. Experimental and simulation results prove the effectiveness and superiority of the method.

关 键 词：有源全补偿消弧控制 谐波电流检测 变步长 自适应 模糊推理 

分 类 号：TM711[电气工程—电力系统及自动化]