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浙江大学学报(工学版)
电气工程     
基于参数模型辨识的逆变器重复控制
郑伟锋,马皓,何湘宁
浙江大学 电气工程学院,浙江 杭州 310027
Inverter repetitive control method based on parameter model identification
ZHENG Wei-feng, MA Hao, HE Xiang-ning
College of Electrical Engineering, Zhejiang University, Hangzhou 310027,China
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摘要:

为了获取逆变器系统谐振频率点,实现有效的逆变器重复控制,提出一种用伪随机序列辨识逆变器模型,获取逆变器参数模型,设计基于反相模型的逆变器重复控制器的方法.详述传统重复控制方法的局限、基于采样模型的重复控制方法的难点、伪随机序列的产生方法、逆变器系统辨识的关键步骤以及逆变器反相模型的改造方法.结合这些方法,设计基于参数模型辨识的逆变器重复控制策略.实验结果表明,该方法既能够为确定逆变器系统谐振频率点提供方法,给重复控制器稳定性设计带来方便,同时获得优良的非线性负载控制效果.

Abstract:

In order to determine inverter LC resonant frequency, and further realize repetitive method controlled inverter effectively, this paper proposes a modified repetitive control method. In this method, firstly an inverter parameter model using pseudo sequence was obtained, and then a modified inverse inverter model inserted into basic repetitive controller was designed. The demerits of traditional repetitive control method, challenge posed by modified repetitive control with sampling model, production method of pseudo sequence, critical procedures of inverter system identification and method to modify inverse inverter model were discussed. Thus, a repetitive control method for inverter based on inverter parameter model was proposed. This method could easily determine LC resonant frequency and facilitate the design of a stable inverter repetitive controller. Also, with this method, high quality output voltage is achieved under nonlinear load.

出版日期: 2014-11-26
:  TM 464  
基金资助:

国家自然科学基金资助项目(51177149).

通讯作者: 马皓,男,教授,博导.     E-mail: mahao@zju.edu.cn
作者简介: 郑伟锋(1983-),男,博士,从事电力电子逆变器并联研究.E-mail:weifengzheng@zju.edu.cn
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引用本文:

郑伟锋,马皓,何湘宁. 基于参数模型辨识的逆变器重复控制[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2014.05.021.

ZHENG Wei-feng, MA Hao, HE Xiang-ning. Inverter repetitive control method based on parameter model identification. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2014.05.021.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2014.05.021        http://www.zjujournals.com/eng/CN/Y2014/V48/I5/896

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