计及分布式电源的配电网电容器定容选址
刘子俊1,孙健2
1 南京理工大学 自动化学院,江苏 南京 210094;2 江苏省电力公司电力科学研究院,江苏 南京 211103
摘 要:针对含风电机组的配电网,提出了一种基于ETAP软件的电容器定容选址优化方法,该方法利用遗传算法求解线性规划问题。在仿真过程中将DG视为负荷,提出一种长时间尺度上的“无功静态控制”,实现动态与静态相结合的无功优化,经ETAP仿真计算后,结果显示:所有母线电压得到补偿;在规划期间由于无功损耗的减少使支路输电容量增加并带来了一定的收益,整个配网系统经济效益达到最佳;对于含风电机组的配电网,其无功优化效果更加明显。
关键词:分布式电源;无功补偿;线性规划;定容选址
中图分类号:TM76 文献标识码:A 文章编号:1007-3175(2014)10-0015-04
Capacitor Capacity Setting and Location Selection for Distribution Network with Distributed Power
LIU Zi-jun1, SUN Jian2
1 Institute of Automation, Nanjing University of Science and Technology , Nanjing 210094,China;
2 Jiangsu Electric Power Company Research Institute, Nanjing 211103, China
Abstract: Aiming at the distribution network with wind turbines, this paper raised an optimizing method based on ETAP software for capacitor capacity setting and location selection. This method used the genetic algorithm to solve linear planning issues. In the simulation process the distributed power was regarded as load. A long time scale of “reactive static control” was raised to realize dynamic and static combined reactive optimization. The result of ETAP software simulation calculation shows that all the bus bar voltage is compensated, in planning period, due to the reduction of reactive power, the branch power transmission capacity increased, bringing a certain gain, the whole distribution network system economic reaches the best, especially for the distribution network with wind turbines, and its reactive optimization effect is more obvious.
Key words: distributed power; reactive compensation; linear planning; capacity setting and location selection
参考文献
[1] 陈琳,钟金,倪以信.含分布式发电的配电网无功优化[J].电力系统自动化,2006,30(14):20-24.
[2] 刘健,阎昆,程红丽.树状配电线路并联电容器无功优化规划[J].电网技术,2006,30(18):81-84.
[3] 陈旺虎,陈奇志,古树平.配电网潮流前推回代法的一种简单实现方法[J].江苏电机工程,2010,29(4):45-47.
[4] 陈海焱.含分布式发电的电力系统分析方法研究[D].武汉:华中科技大学,2008.
[5] 郭力,王成山.含多种分布式电源的微网动态仿真[J].电力系统自动化,2009,33(2):82-86.
[6] 万立勇,谭兴,肖辉,等.计及分布式电源的配电网无功潮流优化研究[J].电测与仪表,2011,48(8):10-14.
[7] 何仰赞,温增银.电力系统分析[M].武汉:华中科技大学出版社,2002.
[8] 严干贵,王茂春,穆钢,等.双馈异步风力发电机组联网运行建模及其无功静态调节能力研究[J].电工技术学报,2008,23(7):98-104.