光伏交错反激逆变器解耦控制方法的研究  

Power Decoupling Control Method for Interleaved Flyback Inverter

作　　者：陈诚[1] 朴政国[1] 

机构地区：[1]北方工业大学电气与控制工程学院北京电动车辆协同创新中心,北京100144

出　　处：《电源学报》2015年第3期79-86,共8页Journal of Power Supply

基　　金：北京市教育委员会科技计划项目(KM201410009003)~~

摘　　要：交流光伏模块将光伏组件与微型逆变器集成为一体,构成一个可直接与电网或负载连接的光伏发电系统模块。微型逆变器独立控制每一个光伏组件,因此受到外部环境条件变化影响小,光伏电池的利用率优于其他光伏并网发电系统结构。首先,介绍了交错式反激逆变器的拓扑结构、工作原理以及并网控制技术;再对3种主动式功率解耦方式及控制方法进行了比较;仿真分析结果表明,3种功率解耦方式能够有效抑制二倍频功率扰动,提高了光伏电池板的效率,可延长电容寿命,但同时增加了设备的体积和成本,逆变效率也会相应下降,电路拓扑和控制都变得复杂。PV AC-module is integrated micro-inverter in the PV module to make it turns into an independent PV system which will provide required AC current to power grid or load directly. Micro-inverter independent control of each PV module, so by the external environment affect the smaller, the utilization of PV module is better than that of other PV system structure. Firstly, introduces the interleaved flyback inverter topology, working principle and grid connected control technology. Secondly, on three kinds of active power decoupling methods and control techniques are compared. Through the simulation and analysis, three power decoupling method can effectively suppress the double frequency power pulsation in PV side, to improve the efficiency of the PV module, and can prolong capacitor life. However, power decoupling circuit to increase the size and cost of the micro-inverter, the inversion efficiency will drop accordingly, and the topology structure and control method are complicated.

关 键 词：交流光伏模块 微型逆变器 交错反激 功率解耦 

分 类 号：TM615[电气工程—电力系统及自动化]