Chinese LABAT Man
光蓄互补发电系统控制策略的研究
许傲然，张柳
(沈阳工程学院，辽宁沈阳100136)
摘要：本文通过研究由光伏阵列、蓄电池组及其管理系统、光伏变流器、负载及电网共同组成的光蓄互补发电系统，根据蓄电池的特性和现在开关器件控制技术的发展，针对蓄电池的充／放电控制策略进行了研究，三相逆变器采用基于空间失量脉宽调制(SVPWM)的空间失量控制方式，在介绍了SVPWM的基本原理及合成方法后，对并网和离网两种系统工作模式的控制策略进行了研究，最后控制理论研制了光蓄互补发电系统用变流器，并搭建试验平台对系统进行试验测试，验证了控制策略的正确性。
关键词：光伏逆变器；蓄电池；空间失量脉宽调制；负载；光蓄互补发电系统
中图分类号：TM912.9
文章编号：1006-0847(2012)02-66-05
文献标识码：A
Researchoncontrol strategyofphotovoltaic/batteryhybridgenerationsystem
XU Ao-ran, ZHANG Liu
(Shenyang Institute of Engineering,ShenyangLiaoning 10136, China)
Abstract: This paper put forward a unique design through the research on photovoltaic power generation system composed by solar panels, battery and its management system, converter, loads and electrical switch system. And according to the characteristics of solar panels and bateries, the actual situation and the control technology of switching devices, the battery charging and discharging control strategies were studied. Then this paper further researched control stralegies of the two operating modes of in grid and off grid systems, and designed a converter with rated power 50 k W used for light storage complementary power generation system and light storage complementary test platform. The test platform was used to do thc charging and discharging experiments of leadacid batteries and off grid experiments, which results showed that the hardware design and the control strategy proposed in this paper were correctness and effectiveness. Key words: PV inverter; battery; space vector pulse width modulation; load; photovoltaic/batery hybrid generafion systern
1光蓄互补发电系统
本文研究的光蓄互补发电系统结合了并网型和修回日期：2011-12-18
基金项目：2011年辽宁省自然科学基金项目，
项目编号201102161
66
万方数据
离网型两种发电系统的优点，可以工作在并网和离网两种模式下。并网运行时系统工作在最大功率点处，太阳能电池板发出的电能可给蓄电池充电、给负载供电，多余电能可以并入电网：当电网异常时系统工作在离网模式下，太阳能电池板与蓄电池给负载协调供电，保证重要负载的不间断运行，光蓄互补发电系统的原理如图1所示。