基于双有源桥式DC-DC变换器的电力电子 牵引变压器的电压平衡控制

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Abstract 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 operation mechanism of this strategy is analyzed and a PETT starting control method is proposed. In order to design 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 model of the parallel DAB converters related to output voltage control loop, and the model of the parallel DAB converters related to input voltage balance control loop. The simulation and experiment are based on a two-cell low-voltage PETT prototype. The experimental results are consistent with the simulation results, including the steady-state and dynamic performance. Simulation results and experiment results all verify the effectiveness and correctness of the proposed algorithms.

Key words： Power electronic traction transformer (PETT), dual active bridge (DAB) DC-DC converter, voltage balance control, PETT starting control

Published: 04 January 2017

PACS:

U266

Fund:中央高校基本科研业务费专项资金（2015YJS152）和2016年北京市科技计划项目资助

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	Articles by authors
	Yang Jingxi
	Liu Jianqiang
	Zhang Jiepin
	Zheng Qionglin

Cite this article:

Yang Jingxi,Liu Jianqiang,Zhang Jiepin等. Voltage Balance Control of a Power Electronic Traction Transformer Based on Dual Active Bridge DC-DC Converters[J]. Transactions of China Electrotechnical Society, 2016, 31(增刊): 119-127.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I增刊/119

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