一种基于Super-re-lift电路的光伏逆变器设计  

Design of a New Photovoltaic Inverter Based on Super-re-lift Circuit

作　　者：刘晓燕[1] 

机构地区：[1]重庆电子工程职业学院,机电学院,重庆401331

出　　处：《电力电子技术》2013年第8期47-48,51,共3页Power Electronics

摘　　要：设计了一种新型光伏逆变器拓扑结构,由Super-re-lift型升压电路、三相四开关逆变单元组成,可有效提高光伏发电效率、降低光伏系统成本。针对该逆变器结构提出一种前馈功率预测控制策略,可省去传统逆变器控制的直流侧电压闭环,由逆变器本身完成光伏阵列的最大功率点跟踪(MPPT)功能,从而提高系统响应速度与可靠性。实验结果验证了所提结构和控制方法的可行性及优越性。A structure of photovoltaic inverter which consists of the Super-re-lift circuit, the three-phase iour-switch un- its is proposed to improve the efficiency of photovohaic power generation and reduce the cost of photovoltaic system effectively.It can leave out voltage close loop of direct current side which controlled by the inverter,and the inverter itself can achieve most power point tracking（MPPT）.The respond speed and reliability of the system are enhanced.The experimental results verify that the proposed structure and control method are feasible and superior.

关 键 词：光伏逆变器 升压电路 三相四开关 前馈功率预测 

分 类 号：TM464[电气工程—电器]