基于模块化多电平矩阵变换器的电力电子变压器控制策略

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Abstract To achieve the goals of compact size and lightweight of on-board traction power electronic transformer (PET), this paper studies a new topology of PET based on modular multilevel matrix converters (M3C). The new PET is available in medium/high voltage and high power occasions, especially in high-speed EMU unit, since M3C as the core of the PET is easily extended and exports arbitrary waveform flexibly. Compared with the existing topologies, the proposed topology requires only one MF transformer, which is superior to the existing circuits in terms of volume and weight. This paper describes the proposed circuit topology. Through establishing the mathematical model of the topology, this paper presents an independent control scheme of M3C and secondary controlled bridge. According to the model of the PET built in Matlab/Simulink platform, the simulation experiments based on RT-lab real-time simulation platform are carried out. The simulation results verify the proposed control scheme, which has excellent dynamic and static characteristics.

Key words： Power electronic transformer modular multilevel matrix converters arm current control capacitor voltage control phase loop control

Received: 28 July 2014 Published: 13 October 2016

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TM41

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	Wang Ting
	Wang Guangzhu
	Zhang Xun

Cite this article:

Wang Ting,Wang Guangzhu,Zhang Xun. The Control Strategy of Power Electronic Transformer Based on Modular Multilevel Matrix Converters[J]. Transactions of China Electrotechnical Society, 2016, 31(18): 108-115.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I18/108

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