摘要
在光伏发电动态模型的基础上,针对光伏发电输出功率的波动性,研究了微电网中的光伏电源的接入问题;提出了采用光伏电源的平均输出功率计算储能设备容量的优化配置方法,以实现微电网中光伏微电源的即插即用;分析了光伏逆变器输出的谐波电流畸变率随光照强度变化波动的情况;利用PSCAD/EMTDC软件进行仿真验证,结果表明该方法能有效平抑光伏发电功率的波动,同时能减小微电网从并网到孤岛过渡过程的频率波动。
This paper studies the integration problem for the fluctuations of PV source output power,based on the dynamic model of photovoltaic generation.Optimizing the capacity configuration of energy storage device,making use of the average output power of PV source,for its plug and play in microgrids.The THD of PV inverter output current harmonic is analyzed with light intensity changing.PSCAD/EMTDC software is used for simulation and verification,the results show that the method proposed could effectively inhibit the output power fluctuations of PV generator,and reduce the frequency fluctuations of microgrid from the grid-connected mode to the islanding model.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2010年第14期119-127,共9页
Power System Protection and Control
基金
重庆市自然科学基金(CSTC2009BB6190)
输配电装备及系统安全与新技术国家重点实验室自主研究项目(2007DA10512709208)~~
关键词
微电网
光伏发电
储能设备
微型燃气轮机
滤波
microgrid
photovoltaic generation
energy storing device
micro-turbine
filter
