光伏建模与并网仿真  

Photovoltaic Modeling and Grid-connected Simulation

作　　者：陈向宜[1] 王彪[1] 丁理杰[1] 李锐[2] 邱晓燕[2] 

机构地区：[1]四川电力科学研究院,四川成都610072 [2]四川大学电气信息学院,四川成都610065

出　　处：《四川电力技术》2011年第6期1-4,23,共5页Sichuan Electric Power Technology

基　　金：四川省电力公司科技项目资助;四川省科技厅支撑项目(2011GZ0036)

摘　　要：在Matlab/Simulink仿真环境下利用S函数,开发了太阳电池板的仿真模型,其通用性强,仿真速度快。该模型采用扰动计算法实现光伏阵列的最大功率跟踪(MPPT),模拟了不同太阳辐射强度、环境温度下的I-V、P-V特性。并且利用该模型进行并网仿真,仿真结果表明在短时间内光照强度的变化对光伏阵列的输出特性影响比温度更为突出,同时直流侧输出电流能有效地跟踪光照强度、环境温度的变化,并且交流侧的电流成正弦且谐波较小,因此证明了所建模型的合理性和实用性。The photovoltaic （PV） array simulation model with good universal property and fast simulation is established using S - function in Matlab/Simulink simulation environment. Using the perturbation calculation method, the model can achieve the maximum power point track （MPPT） and can simulate the I - V and P - V characteristics of the actual photovoltaic modules at different radiant intensity and ambient temperatures. The model is used for the grid - coneected simulation. The results of sim- ulation show that the influence of changes in light intensity is more prominent than the temperature for the output characteristics of PV array within a short time, the output current can effectively track the changes of light intensity and ambinet temperatures, the AC current becomes sinusoidal and the harmonics are smaller, which prove the rationality and practicability of the established model.

关 键 词：光伏阵列特性 S函数 扰动计算法 最大功率点跟踪(MPPT) 单相并网 谐波 

分 类 号：TM864[电气工程—高电压与绝缘技术]