基于发展的PWM Switch模型的Buck/Boost双向直直变换器建模及分析  

Modeling and Analysis of Buck/Boost Bidirectional DC/DC Converter with Developed PWM Switch Model

作　　者：王建华[1] 张方华[2] 龚春英[2] 

机构地区：[1]东南大学电气工程学院,南京210096 [2]南京航空航天大学自动化学院,南京210016

出　　处：《南京航空航天大学学报》2014年第1期92-100,共9页Journal of Nanjing University of Aeronautics & Astronautics

基　　金：国家自然科学基金(51207023)资助项目;教育部博士点基金(20120092120051)资助项目;国家重点基础研究发展计划("九七三"计划)(2007CB210303)资助项目;台达电力电子科教基金(DRE02006007)资助项目

摘　　要：提出了双向功率流动场合的PWM Switch模型,同时选取典型的Buck/Boost双向变换器作为评估平台。小信号分析结果表明,Buck/Boost双向直直变换器通过仅控制Buck模式主控管可以对电池充放电模式进行切换。其提供了对变换器稳态及动态性能研究的一种快速仿真方法。基于改进PWM Switch模型及器件级电路的详尽仿真对比验证了模型的精确性。A developed PWM Switch model is proposed for bidirectional power flow application. A typical Buck/Boost bidirectional converter is chosen as a test bench for evaluation. Small signal analysis results show that the mode transition between battery charging and discharging modes can be achieved with only Buck main switch controlled. It provides a fast simulation tool to investigate steady and transient re- sponses of converters. The accuracy of the modeling technique is verified by a detailed comparison of simulation results of the developed PWM Switch model and the component circuit.

关 键 词：电力电子与电力传动 双向直直变换器 PWM开关模型 BUCK BOOST变换器 电池充放电 

分 类 号：TM46[电气工程—电器]