多重化双向Buck/Boost变换器控制策略仿真研究
|
摘要
多重化双向Buck/Boost变换器常作为能量交换接口用于储能系统中。采用基本建模法对三重化双向Buck/Boost变换器建立交流小信号模型,基于变换器的开环特性,设计了电压、电流补偿网络,在此基础上提出一种新的基于前馈校正的复合双闭环控制策略。为验证所提控制策略的正确性进行了MATLAB仿真研究。仿真结果表明:该控制策略可为三重化双向Buck/Boost变换器提供良好的动、稳态性能,同时对大范围的负载变化等扰动均具有很好的鲁棒性。
Multi-channel bidirectional Buck/Boost converters,served as energy exchange interfaces had often been used in energy storage systems. The basic modeling method was used to build small signal AC model for threechannel bidirectional Buck/Boost converter. Base on the open loop characteristic of the converter,the voltage and current compensation network were designed,following this,a new double closed-loop control strategy based on feedforward correction was proposed. The paper adopted the MATLAB simulation research to prove the correctness of the proposed control strategy. The Simulation results showed that the control strategy could provide good dynamic and steady-state performance for the three-channel bidirectional Buck/Boost converters, and at the same time, it demonstrates good robustness which could adapt to wide range of load variation.
Multi-channel bidirectional Buck/Boost converters,served as energy exchange interfaces had often been used in energy storage systems. The basic modeling method was used to build small signal AC model for threechannel bidirectional Buck/Boost converter. Base on the open loop characteristic of the converter,the voltage and current compensation network were designed,following this,a new double closed-loop control strategy based on feedforward correction was proposed. The paper adopted the MATLAB simulation research to prove the correctness of the proposed control strategy. The Simulation results showed that the control strategy could provide good dynamic and steady-state performance for the three-channel bidirectional Buck/Boost converters, and at the same time, it demonstrates good robustness which could adapt to wide range of load variation.
引文
[1]陈明,汪光森,马伟明,等.多重化双向DC-DC变换器电流纹波分析[J].电力系统保护与控制,2007,35(4):53-57.
[2]黄林森.三相交错并联BUCK-BOOST双向DC/DC变换器的研究[D].株洲:湖南工业大学,2015.
[3]孙文.用于电动汽车的交错并联双向DC/DC变换器设计[D].杭州:浙江大学,2012.
[4]刘正兰.双向DC-DC变换器设计技术研究[D].哈尔滨:哈尔滨工程大学,2012.
[5]许海平.大功率双向DC-DC变换器拓扑结构及其分析理论研究[D].北京:中国科学院研究生院(电工研究所),2005.
[6]张卫平.开关变换器的建模与控制[M].北京:中国电力出版社,2006.
[7]杨刚.基于DSP的交错并联双向DC/DC变换器研究[D].成都:西南交通大学,2015.
[8]CHUNG H,IOINOVICI A.Large-signal stability of PWM switching regulators[J].Circuits&Systems.IEEE International Symposium on,1995(2):1123-1126.
[9]胡寿松.自动控制原理[M].4版.北京:科学出版社,2001.
[2]黄林森.三相交错并联BUCK-BOOST双向DC/DC变换器的研究[D].株洲:湖南工业大学,2015.
[3]孙文.用于电动汽车的交错并联双向DC/DC变换器设计[D].杭州:浙江大学,2012.
[4]刘正兰.双向DC-DC变换器设计技术研究[D].哈尔滨:哈尔滨工程大学,2012.
[5]许海平.大功率双向DC-DC变换器拓扑结构及其分析理论研究[D].北京:中国科学院研究生院(电工研究所),2005.
[6]张卫平.开关变换器的建模与控制[M].北京:中国电力出版社,2006.
[7]杨刚.基于DSP的交错并联双向DC/DC变换器研究[D].成都:西南交通大学,2015.
[8]CHUNG H,IOINOVICI A.Large-signal stability of PWM switching regulators[J].Circuits&Systems.IEEE International Symposium on,1995(2):1123-1126.
[9]胡寿松.自动控制原理[M].4版.北京:科学出版社,2001.