光伏发电双管Buck-Boost电路两模式控制方法的仿真与实验研究  

Simulation and Experimental Study of Double-barreled Buck-Boost Circuit Two Modes Control in PV

作　　者：申玮霓 王玉生[2] 张利[1] 白连平[1] 

机构地区：[1]北京信息科技大学自动化学院,北京100192 [2]中国石油天然气股份有限公司规划总院,北京100083

出　　处：《电气技术》2016年第7期52-56,共5页Electrical Engineering

基　　金：北京市属高等学校高层次人才引进与培养计划项目(CIT&TCD201404126)

摘　　要：光伏电池输出特性具有非线性的特征,其输出功率随着负载、光照强度、环境温度的变化而变化。调整光伏电池的输出电压或电流,是提高光伏电池发电效率的重要途径,它需要用到直流变换电路。本文分析了双管Buck-Boost电路,与常用的四个变换电路相比,该电路综合了Buck电路和Boost电路的优点,能分别实现降压功能和升压功能,具有输入与输出同极性,无源元件少,开关器件的损耗低等优点。本文用Simulink对双管Buck-Boost电路进行了仿真,并做了实验,仿真和实验结果表明双管Buck-Boost电路能较好地应用于光伏发电DC/DC变换电路。The output of PV is nonlinear, its output power changes as load, light intensity and ambient temperature changes. To improve the efficiency of photovoltaic power generation, we need to adjust photovoltaic cell＇s output voltage or current with DC converter circuit. This paper analyzes the double-barreled Buck-Boost circuit, compared with the four common circuits, this circuit combines the advantages of Buck circuit and Boost Circuit, it can become buck or boost, the polarity of input and output are same, it has less passive components and low switching loss. This paper simulate the double-barreled Buck-Boost circuit with simulink, and made a real experiment, the simulation and experimental results show that the circuit can preferably apply to the DC/DC converter circuit of PV.

关 键 词：光伏发电 DC/DC变换电路 双管Buck-Boost SIMULINK仿真 

分 类 号：TM615[电气工程—电力系统及自动化] TM46