基于聚类风电场分群及等值建模的研究
发布时间：2018-11-24 18:59
【摘要】：随着我国风力发电的大力发展,风电机组的大规模并网对电力系统产生越来越大的影响,而由于电网调峰能力不足、配电线路阻塞和输电容量不足等原因,风电场限电问题已经成为风电发展面临的一大挑战。特别是在限电严重地区,调度往往会随机的切除某些风电机,这样往往会使一些性能较好的风电机组被切除。基于聚类风电场分群及等值建模利用运行数据研究风力发电场群建模理论方法。建立风电场群动态模型,为电网调度提供依据,对提高风电场群的运行效率、减小不稳定风电场群对电网的冲击具有重要的意义。本文研究了一种基于风电机组运行数据快速更新聚类分群方法。该方法建立风电场群模型后通过不断的滚动更新使模型更加具有时效性。通过仿真对比分析,验证这种方法能保证和实际模型输出具有较小的误差。同时为电网调度优先级选择更好的单位,保证电网运行的稳定性。
[Abstract]:With the rapid development of wind power generation in China, the large-scale grid connection of wind power units has more and more influence on the power system. However, due to the lack of peak shaving capacity of the power grid, the blocking of distribution lines and the insufficient transmission capacity, etc. Wind farm power restriction has become a major challenge for wind power development. Especially in the severely limited power area, the dispatching will remove some wind motors at random, which will make some wind turbine units with better performance be removed. Based on cluster wind farm clustering and equivalent modeling theory and method of wind farm group modeling are studied using operation data. The establishment of dynamic model of wind farm group provides the basis for power grid dispatching. It is of great significance to improve the operation efficiency of wind farm group and reduce the impact of unstable wind farm group on power grid. In this paper, a fast updating clustering method based on wind turbine operation data is studied. After the wind farm group model is established, the model is more time-efficient through continuous rolling updating. The simulation results show that this method can ensure a small error compared with the actual model output. At the same time, select a better unit for power dispatching priority to ensure the stability of power grid operation.
【学位授予单位】：华北电力大学(北京)
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM614
本文编号：2354680
[Abstract]:With the rapid development of wind power generation in China, the large-scale grid connection of wind power units has more and more influence on the power system. However, due to the lack of peak shaving capacity of the power grid, the blocking of distribution lines and the insufficient transmission capacity, etc. Wind farm power restriction has become a major challenge for wind power development. Especially in the severely limited power area, the dispatching will remove some wind motors at random, which will make some wind turbine units with better performance be removed. Based on cluster wind farm clustering and equivalent modeling theory and method of wind farm group modeling are studied using operation data. The establishment of dynamic model of wind farm group provides the basis for power grid dispatching. It is of great significance to improve the operation efficiency of wind farm group and reduce the impact of unstable wind farm group on power grid. In this paper, a fast updating clustering method based on wind turbine operation data is studied. After the wind farm group model is established, the model is more time-efficient through continuous rolling updating. The simulation results show that this method can ensure a small error compared with the actual model output. At the same time, select a better unit for power dispatching priority to ensure the stability of power grid operation.
【学位授予单位】：华北电力大学(北京)
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM614
【参考文献】
相关期刊论文 前8条
1 马幼捷;杨海珊;周雪松;李季;问虎龙;;基于人工神经网络的风电场建模[J];中国电力;2010年09期
2 郑睿敏;李建华;李作红;刘议华;;考虑尾流效应的风电场建模以及随机潮流计算[J];西安交通大学学报;2008年12期
3 孙春顺;王耀南;李欣然;;飞轮辅助的风力发电系统功率和频率综合控制[J];中国电机工程学报;2008年29期
4 惠晶;顾鑫;;大型风电场的集中功率控制策略研究[J];华东电力;2008年06期
5 郎斌斌;穆钢;严干贵;崔扬;王晓波;郑太一;;联网风电机组风速-功率特性曲线的研究[J];电网技术;2008年12期
6 王伟胜;范高锋;赵海翔;;风电场并网技术规定比较及其综合控制系统初探[J];电网技术;2007年18期
7 郎永强;张学广;徐殿国;马洪飞;Hadianmrei S.R;;双馈电机风电场无功功率分析及控制策略[J];中国电机工程学报;2007年09期
8 雷亚洲,Gordon Lightbody;国外风力发电导则及动态模型简介[J];电网技术;2005年12期
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