能量路由器中双有源桥直流变换器多目标优化控制策略

doi:10.19595/j.cnki.1000-6753.tces.191278

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Abstract For improving the transmission efficiency and dynamic characteristics of dual- active-bridge (DAB) converter, a hybrid control strategy for backflow power optimization is proposed based on extended-phase-shift output voltage model predictive control and gradient descent algorithm. Firstly, the transmission power mathematical models of DAB converter under single-phase-shift and extended-phase-shift control are established. The mechanism of backflow power is analyzed, and the output voltage state space averaging equation under extended-phase-shift control is also derived. Secondly, based on the output voltage model predictive control of DAB converter, a backflow power optimization strategy based on gradient descent algorithm is proposed. A scale-down experimental prototype of DAB converter was built and compared with the traditional single-phase-shift control. The experimental results have verified the effectiveness and correctness of the proposed control strategy.

Key words： Dual-active-bridge converter extended-phase-shift control backflow power optimi- zation dynamic response gradient descent algorithm

Received: 30 September 2019

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TM464

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	Articles by authors
	Zhou Bingkai
	Yang Xiaofeng
	Zhang Zhi
	Li Zejie
	Zheng Trillion Q
	Pavel Kobrle

Cite this article:

Zhou Bingkai,Yang Xiaofeng,Zhang Zhi等. Multi-Objective Optimization Control Strategy of Dual-Active-Bridge DC-DC Converter in Electric Energy Router Application[J]. Transactions of China Electrotechnical Society, 2020, 35(14): 3030-3040.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.191278 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I14/3030

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