一种改进的正反激并网微型逆变器

doi:10.19595/j.cnki.1000-6753.tces.L70488

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Abstract The flyback grid-connected micro-inverter has larger current ripple and lower output power, while the interleaved flyback grid-connected micro-inverter needs many switching devices and complex control strategy. Therefore, a novel single-stage forward-flyback grid-connected micro- inverter with two transformers is proposed in this paper. The proposed inverter uses only two switches in the secondary side to simplify the control strategy and guarantee high reliability. The utilization of two transformers in the topology can split the power and reduce the size of single transformer. Detailed analyses on the topology of the proposed inverter, the current control strategy, steady principle and characteristics of the circuit are presented. In addition, the simulation results and experimental data verify the feasibility of the micro-inverter.

Key words： Forward-flyback dual transformer micro-inverter switching devices

Published: 10 October 2017

PACS:

TM464

Fund:国家自然科学基金（51607086）和江苏省自然科学青年基金（BK20140944）资助项目

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	Articles by authors
	Wang Xingxing
	Ji Baojian
	Hong Feng
	Ye Zunjing

Cite this article:

Wang Xingxing,Ji Baojian,Hong Feng等. An Improved Forward-Flyback Grid-Connected Micro-Inverter[J]. Transactions of China Electrotechnical Society, 2017, 32(18): 202-210.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L70488 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I18/202

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