BUCK型开关变换器分数阶PI^λD^μ控制研究  

Research on buck converter control based on fractional order PI^λD^μ controller

作　　者：何一文[1] 许维胜[1] 程艳[1] 

机构地区：[1]同济大学电子与信息工程学院,上海201804

出　　处：《电子测量与仪器学报》2010年第2期162-166,共5页Journal of Electronic Measurement and Instrumentation

基　　金：国家863高技术基金项目(编号:2006AA05Z211)资助项目

摘　　要：常规的PID控制策略已经很难满足DC-DC开关变换器高精度、高稳定性和快速动态调节特性的要求。分数阶PIλDμ控制器将传统的PID控制器的阶次推广到分数领域,它不但适合于分数阶系统,也适用于整数阶系统,并能够取得一些优于整数阶PID控制器的效果。最后给出了基于ITAE最优和遗传算法的PIλDμ控制器参数整定方法,并应用于Buck型变换器中。实验结果表明该控制器不仅能提高系统的控制品质,而且对系统参数的变化并不敏感,具有更灵活的结构和更强的鲁棒性。For promoting the performance of the Buck converter controlled by traditional PID controller, fractional order PI^λD^μontroller, which is the generalization of classical integer order PID controller, was proposed. It can be used for fractional order systems and some integer order systems, and may have some superior performances compared with the classical integer order PID controller. Then the genetic algorithm with global searching was used to select optimum parameters of fractional order PID controller based on ITAE performance criteria. The experiment results confirm that the fractional order PI^λD^μontroller make the controlled system has better static and dynamic properties and robustness under large parameters variation.

关 键 词：BUCK变换器 分数阶微积分 分数阶PIλDμ控制器 参数整定 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]