储能电感对二次型Boost PFC变换器的性能影响

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Abstract Compared with traditional discontinuous conduction mode(DCM) Boost power factor correction (PFC) converter, quadratic Boost PFC converter with input inductor L₁ and storage inductor L₂ operating in DCM, has much lower output voltage ripple, but worse power factor (PF). First, by analyzing PF expression of quadratic Boost PFC converter, this paper points out that PF can be improved by increasing middle capacitor voltage of converter properly. Further, The influence of inductor L₂ on middle capacitor voltage and its voltage ripple are studied, which indicate that when inductor L₂ operates in DCM, higher PF and lower output voltage ripple can be achieved by setting appropriate inductor ratio of L₂/L₁. The correctness of theoretical analysis is verified by simulations and experimental results

Key words： Quadratic Boost converter middle capacitor voltage storage inductor high power factor low output ripple

Received: 11 August 2015 Published: 22 March 2017

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TM46

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	Chen Zhengge
	Xu Jianping
	Yang Ping
	Zhou Guohua

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Chen Zhengge,Xu Jianping,Yang Ping等. Influence of Storage Inductor on Quadratic Boost PFC Converter[J]. Transactions of China Electrotechnical Society, 2017, 32(5): 78-85.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I5/78

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