| DC/DC变换器混合逻辑动态建模与约束优化控制策略 |
| |
| 引用本文： | 张聚,谢作樟,杨光利.DC/DC变换器混合逻辑动态建模与约束优化控制策略[J].电机与控制学报,2012,16(4):106-112. |
| |
| 作者姓名： | 张聚 谢作樟 杨光利 |
| |
| 作者单位： | 浙江工业大学信息工程学院,浙江杭州,310032 |
| |
| 摘 要： | 针对电力电子电路DC/DC(直流-直流)变换器同时存在着连续动态和离散切换两种不同类型的的混杂特性,引入N步建模方法,推导出DC/DC变换器的混合逻辑动态模型,用来描述变换器的动态特性、切换规律和系统中的约束关系.在此基础上,考虑控制输入约束和系统状态约束,应用混合整数模型预测控制方法,建立以脉冲宽度调制(PWM)为控制方式的DC/DC变换器状态反馈最优控制系统.数值仿真结果表明:DC/DC变换器基于混合逻辑动态建模的可行性,及在此基础上设计的优化控制系统具有良好的动态特性,并能满足系统的约束限制.
|
| 关 键 词： | 混合整数预测控制 DC/DC变换器 N步建模方法 混合逻辑动态模型 |
Mixed logical dynamical modeling and constrained optimal PWM control of DC/DC converters |
| |
| ZHANG Ju
,
XIE Zuo-zhang
,
YANG Guang-li.Mixed logical dynamical modeling and constrained optimal PWM control of DC/DC converters[J].Electric Machines and Control,2012,16(4):106-112. |
| |
| Authors: | ZHANG Ju XIE Zuo-zhang YANG Guang-li |
| |
| Affiliation: | (College of Information Engineering,Zhejiang University of Technology,Hangzhou 310032,China) |
| |
| Abstract: | For the hybrid features of power electronic circuit DC/DC converters with simultaneously existing continuous dynamics and switch properties,by using N-step modeling approach,a mixed logical dynamical(MLD) model of DC/DC converters is established to describe the continuous dynamics,the switch properties and the constraints in the DC/DC converters.Based upon the MLD model of DC/DC converters,with the mixed integer predictive control method,a state feedback DC/DC converters PWM predictive control system was developed,which can deal with the inputs and states constraints of the system.Numerical simulation results show the feasibility of the MLD model of DC/DC converters,and that the developed state feedback closed-loop control system has good dynamic characteristics,and can satisfy the constraints. |
| |
| Keywords: | mixed integer predictive control DC/DC converters N-step modeling approach mixed logical dynamic model |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
