Boost变换器的无源性电流控制方法  

The Passivity-based Current Control Method for Boost Converter

作　　者：廖鸿飞[1] 帅定新[2] 梁奇峰[1] 

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

出　　处：《电力电子技术》2012年第11期44-46,共3页Power Electronics

摘　　要：为提高Boost变换器控制性能,提岀了一种新型Boost变换器的无源性电流控制方法,通过直接控制电感电流间接控制输出电压。首先根据无源性控制方法建立了系统的欧拉-拉格朗日功率模型,然后基于无源性理论和Layapunov稳定性理论,推导岀系统的无源性控制规律。此处提出的控制方法结构简单,成本低,易于实现。实验结果验证了该控制方法的正确性,采用无源性电流控制方法的Boost变换器具有稳定的输出电压,对负载扰动有较强的鲁棒性及良好的动态响应。In order to achieve good control ability of Boost converter,a new current control method based on passivity control theory is proposed,the output voltage is controlled by the inductor current indirectly.The Euler-Lagrange model of system based on passivity-based control method is built up at first, then the passivity-based control rule is deduced based on passivity theory and Layapunov theory.The control method has advantages of simple controller structure, low cost and easy to implement.The validity of the control scheme is verified by test result.The Boost converter controlled by passivity-based current control method has a stable output, strong robustness, good transient response.

关 键 词：升压变换器 无源性 电流控制 非线性控制 

分 类 号：TM46[电气工程—电器]