准单级隔离Buck-Boost型多输入逆变器

doi:10.19595/j.cnki.1000-6753.tces.170811

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Abstract This paper proposes the circuit configuration, circuit topological family and master-slave power management SPWM control strategy with smooth and seamless handover in different power supply modes of quasi single stage isolated Buck-Boost mode multi-input inverter. The circuit configuration, topologies, power management strategy, characteristic of steady principle, duty ratio relationship of the multi-input sources and design criteria for key circuit parameters are fully investigated. The circuit configuration is composed of a bidirectional isolated Buck-Boost converter with multi-input selected switches in series and an unfold bridge, including four topologies such as one-transistor mode. The master-slave power management strategy is composed of n-1 input voltage loops, n power distribution circuits and instantaneous output voltage loop with independent power control, which can realize smooth and seamless handover in different power supply modes. The designed and developed 500V·A DC 80~110V/AC 220V 50Hz prototype of multi-input inverter has excellent performances such as high conversion efficiency, high quality of output waveforms, strong load adaptability, smooth and seamless handover in different power supply modes.

Key words： Multi-input inverter isolated Buck-Boost converter quasi single stage master-slave power management smooth and seamless handover

Received: 12 June 2017 Published: 26 September 2018

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TM46

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	Jiang Jiahui
	Chen Daolian
	She Min

Cite this article:

Jiang Jiahui,Chen Daolian,She Min. Quasi Single Stage Isolated Buck-Boost Mode Multi-Input Inverter[J]. Transactions of China Electrotechnical Society, 2018, 33(18): 4323-4334.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.170811 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I18/4323

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