摘要
提出一种基于双有源桥式(DAB)DC-DC变换器的电力电子牵引变压器(PETT)的电压平衡控制策略,分析这种控制策略的作用机理,并提出一种PETT的起动控制方法。建立单个DAB的数学模型、DAB并联系统的整体模型以及DAB并联系统的电压平衡控制模型,以方便、有效地进行输出电压控制器、输入电压平衡控制器的设计。基于两单元PETT实验平台,开展仿真和实验研究,仿真和实验结果一致,变换器的稳态和动态控制性能良好。仿真和实验结果验证了所提方法的正确性和有效性。
In this paper, a voltage balance control strategy based on dual active bridge (DAB)DC/DC converters in a power electronic traction transformer (PETT) is proposed. The operationmechanism of this strategy is analyzed and a PETT starting control method is proposed. In order todesign the output voltage controller and input voltage balance controller conveniently and effectively,the mathematical models are set up, including the model of a single DAB converter, the overall modelof the parallel DAB converters related to output voltage control loop, and the model of the parallelDAB converters related to input voltage balance control loop. The simulation and experiment are basedon a two-cell low-voltage PETT prototype. The experimental results are consistent with the simulationresults, including the steady-state and dynamic performance. Simulation results and experiment resultsall verify the effectiveness and correctness of the proposed algorithms.
作者
杨景熙
刘建强
张捷频
郑琼林
Yang Jingxi;Liu Jianqiang;Zhang Jiepin;Zheng Qionglin(College of Electrical Engineering Beijing Jiaotong University Beijing 100044 China)
出处
《电工技术学报》
EI
CSCD
北大核心
2016年第A01期119-127,共9页
Transactions of China Electrotechnical Society
基金
中央高校基本科研业务费专项资金(2015YJS152)
2016年北京市科技计划项目资助
作者简介
杨景熙 男,1991 年生,博士研究生,研究方向为电力电子牵引变压器。E-mail: yangjingxi@bjtu.edu.cn(通信作者);刘建强 男,1981 年生,副教授,博士生导师,研究方向为高速列车牵引传动与控制技术、大功率低功耗变流系统、电能质量检测与评估。E-mail: liujianqiang@bjtu.edu.cn