多胞LPV模型的Buck变换器鲁棒增益调度控制
针对输入电压和输出负载发生变化会影响B u c k变换器动态特性的问题,建立了 B u c k变换 器多胞线性变参数（ linear parameter-varying,L P V ）模型,同时引入多胞优化技术,基于线性矩阵不 等式（ LMI ）最优化的方法,利用状态反馈将闭环系统的极点配置到满足动态响应要求的特定区域, 设计了-种基于多胞线性变参数模型的B u c k变换器鲁棒变增益控制器.仿真结果表明,无论是在 负载电阻突变或者输入电压突变的情况下,还是存在负载扰动电流的情况下,所设计的鲁棒变增益 控制器都能够使Buck变换器保持稳定的电压输出和良好的动态特性....
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| Published in | 电机与控制学报 Vol. 22; no. 1; pp. 93 - 99 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
哈尔滨理工大学自动化学院,黑龙江哈尔滨,150080
2018
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1007-449X |
| DOI | 10.15938/j.emc.2018.01.013 |
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| Summary: | 针对输入电压和输出负载发生变化会影响B u c k变换器动态特性的问题,建立了 B u c k变换 器多胞线性变参数（ linear parameter-varying,L P V ）模型,同时引入多胞优化技术,基于线性矩阵不 等式（ LMI ）最优化的方法,利用状态反馈将闭环系统的极点配置到满足动态响应要求的特定区域, 设计了-种基于多胞线性变参数模型的B u c k变换器鲁棒变增益控制器.仿真结果表明,无论是在 负载电阻突变或者输入电压突变的情况下,还是存在负载扰动电流的情况下,所设计的鲁棒变增益 控制器都能够使Buck变换器保持稳定的电压输出和良好的动态特性. |
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| Bibliography: | Buck converter ＆ linear parameter-varying ＆ linear matrix inequalities ＆ polytopic technique ＆ re-gional pole placement 23-1408/TM Aiming at the problem that the dynamic characteristics of a Buck converter are usually changed with its input voltage and output load changing, a Buck converter polytopic linear parameter-varying （L PV） model was built, at the same time,the polytopic optimization technique was ion the optimization method of linear matrix inequalities （LMI）,a robust Zg controllerthe basis of tlie polytopic LPV model of a Buck converter by state feedback metliod to configure the closed loop poles to a specific area where met the dynamic response requirements. Simulationno matter in the case of abrupt change in load resistance and in input voltage or in the case of disturbingcurrent, the Buck converter under t!ie control of t!ie robust variable gain controller isput voltage stable and to posess good dynamic characteristics. HUANG Jin-jie, PAN Xiao-zhen（School of Automation,Harbin University of Science a |
| ISSN: | 1007-449X |
| DOI: | 10.15938/j.emc.2018.01.013 |