基于PSCAD/EMTDC的三相光伏并网系统的建模与仿真  

Modeling and Simulation of a Three-phase Grid-connected Photovoltaic Generation System Based on PSCAD/EMTDC

作　　者：杨秀[1] 杨菲[1] 宗翔[1] 王瑞霄[1] 

机构地区：[1]上海电力学院电力与自动化工程学院,上海200090

出　　处：《上海电力学院学报》2011年第5期490-494,共5页Journal of Shanghai University of Electric Power

基　　金：国家自然科学基金(50977055);上海市科委地方能力建设项目(09160501600);上海市科委重点科技攻关计划(10dz1203100);上海市教委科研创新重点项目(10ZZ114)

摘　　要：根据光伏电池的物理模型,以及光伏阵列在不同光照强度和环境温度下的输出特性,对基于boost电路的最大功率跟踪控制进行了理论分析及实现,讨论了三相光伏并网逆变器的工作原理,并在PSCAD/EMTDC中搭建了三相光伏并网系统.仿真结果表明,系统能够在温度和光照强度的阶跃变化下快速响应,并能够始终保持最大功率输出,验证了理论的有效性及可行性.According to physical model and output characteristic of photovohaic arrays,theoretical analysis and experimental results based on a Boost Circuit of MPPT research are presented. Furthermore, the principles of three-phase PV grid-connected inverter are analyzed and the mathematical model of the system is established under PSCAD/EMTDC environment. The simulation result shows that the system can guarantee the maximum power output of photovohaic array under sudden changes in solar irradiance and temperature, which verifies the validity and feasibility of theory.

关 键 词：光伏发电 最大功率跟踪 功率控制 

分 类 号：TM615[电气工程—电力系统及自动化]