DC-DC Boost变换器控制算法的研究  

Research on control algorithm of DC-DC Boost converters

作　　者：杨玉岗[1] 甘汶桦 

机构地区：[1]辽宁工程技术大学电气与控制工程学院,辽宁葫芦岛125105

出　　处：《电工电能新技术》2015年第3期72-75,共4页Advanced Technology of Electrical Engineering and Energy

基　　金：国家自然科学基金(51177067);教育部留学回国人员科研启动基金(2009-1341);辽宁省自然科学基金(20102092)资助项目

摘　　要：为了改善DC-DC Boost变换器的性能,在电压控制模式的基础上,设计了PI控制器,对输出电压进行控制。分析了DC-DC Boost变换器的基本原理,推导了变换器的传递函数。本文用Ziegler-Nichols方法和Loop-Shaping方法计算出PI控制器中Kp和Ki的值,进而通过Matlab仿真和实验,比较了两种方法的输出响应,得出结论:采用Loop-Shaping方法能更好改善变换器的性能。To improve the control performance of DC-DC Boost power converters,a PI controller is designed to regulate the output voltage based on voltage mode. The basic principle of the DC-DC Boost converter have been analyzed,and the transfer function of the converter have been derived. The paper uses PI controller in which the values of Kpand Kihave been derived using the Ziegler-Nichols method and Loop Shaping method,and through Matlab simulation and experiment,the output response of the both methods is compared and conclusion is made that LoopShaping method can improve the performance of the converter better.

关 键 词：传递函数 PI控制器 Ziegler-Nichols方法 Loop-Shaping方法 

分 类 号：TM46[电气工程—电器]