摘要
提出一种具有功率解耦功能的单极光伏微型逆变器。该微型逆变器将提出的三端口反激变换器中的一个端口用于实现功率解耦,有效减小解耦所需的电容量,从而可以采用长寿命、低容值薄膜电容。详细分析该电路的基本工作原理,并给出关键设计:包括关键参数选择和控制策略。搭建一台100 W样机进行实验。实验结果表明,提出的拓扑不仅可以实现功率解耦,变换器转换效率达到91.3%。
A novel single-stage PV micro-inverter with power decoupling capability is proposed in this paper. The proposed topology is based on three-port flyback with one port dedicated to power decoupling function so as to reduce the decoupling capacitance, thus allowing for long lifetime film capacitor to be used. Operation principle is analyzed in details. Key design considerations, including key parameter selections and control strategy, are given in the paper. A 100W micro-inverter prototype is built to verify the proposed topology. Experimental results show that the proposed topology can achieve power decoupling, while maintaining efficiency reaching up to 91.3%.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2013年第12期47-54,185,共8页
Proceedings of the CSEE
基金
国家自然基金项目(51177070
51077071)~~
