基于开关电感的有源网络升压变换器的研究

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Abstract Traditional Boost converters cannot provide a high voltage gain. Therefore,in some occasions that we need a high voltage gain such as the photovoltaic grid-connected micro-inverter,the traditional Boost converters can’t meet the needs of the voltage conversion. Because of insolated DC-DC converters contain high frequency transformer,they have some shortages in volume and conversion efficiency,so the non-insolated high step-up voltage gain converters have became the research hotspot. However,traditional non-insolated high step-up voltage gain converters also bring many disadvantages: the converters are very large,the voltage stresses of the power devices are very high,and the voltage gain is still limited. This paper proposes an active network DC-DC Boost converter which based on switched-inductor. It has following advantages: high voltage gain,low voltage stress. A prototype rated at 200W was established in the lab,and the experimental results verify the correctness of the analysis.

Key words： Photovoltaic power generation micro-inverter active network switched-inductor high step-up voltage gain

Received: 14 April 2013 Published: 22 January 2015

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	Wang Ting
	Tang Yu

Cite this article:

Wang Ting,Tang Yu. Study of Active Network DC-DC Boost Converter Based on Switched-Inductor[J]. Transactions of China Electrotechnical Society, 2014, 29(12): 73-79.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2014/V29/I12/73

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