BUCK-BOOST变换器的无源性电流控制方法  

The Passivity-based Current Control Method for BUCK-BOOST Converter

作　　者：廖鸿飞[1] 帅定新[2] 梁奇峰[1] 彭建宇[1] 

机构地区：[1]中山火炬职业技术学院电子工程系,广东中山528400 [2]攀枝花学院电气信息工程学院,四川攀枝花617000

出　　处：《电源学报》2013年第2期101-104,120,共5页Journal of Power Supply

基　　金：中山市科技攻关计划项目(20114A228)

摘　　要：为了简化系统控制结构,提高Buck-Boost变换器的控制性能,提出了一种通过直接控制电感电流间接控制输出电压的Buck-Boost变换器无源性电流控制方法。首先根据无源性控制方法建立了系统的欧拉-拉格朗日能量模型,然后基于无源性理论和Layapunov稳定性理论,推导出了系统的无源性控制规律。实验结果表明,系统输出电压稳定,鲁棒性较强,动态响应良好。In order to simplify the control strategy and achieve good controllability of Buck-Boost converter, a new current control method based on passivity control theory was proposed, the output voltage was controlled by the inductor current indirectly. The Euler-Lagrange model of system was built firsdy, and then the passivity-based control rule was deduced base on passivity theory and Layapunov theory. The test result showed that the system has a stable output, strong robustness, good transient response.

关 键 词：Buck—Boost变换器 无源性 电流控制 非线性控制 

分 类 号：TM46[电气工程—电器]