基于等可靠性准则的风电场容量可信度评估方法
张联邦,韩寒
华中科技大学 强电磁工程与新技术国家重点实验室,湖北 武汉 430074
摘 要:风电容量可信度是衡量风力发电对电力系统可靠性贡献的重要指标。建立风速、风电机组和风电场出力模型,并考虑尾流效应,将风电场处理为等效的多状态发电机组。基于发电系统可靠性指标定义了风电场的容量可信度,采用截弦法计算得到风电场的容量可信度。以加入风电场后的IEEE RTS-96系统作为算例进行评估,通过风电渗透率、系统备用、常规机组强迫停运率等因素对风电场容量可信度的影响分析,验证了该方法的正确性和有效性。
关键词:风电场;容量可信度;多状态机组;风电渗透率
中图分类号:TM614 文献标识码:A 文章编号:1007-3175(2014)10-0007-04
Wind Farm Capacity Credibility Evaluation Method Based on Reliability Criterion
ZHANG Lian-bang, HAN Han
State Key Lab of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
Abstract: Wind power capacity credibility is an important index to measure the contribution of wind power for power system reliability. This paper established the wind speed, wind turbines and wind farm output models, taking wake flow effect into consideration, to treat wind farm as the equivalent polymorphic generators. Based on power system reliability index, this paper defined capacity credibility of wind farm and adopted the secant method to calculate the wind farm capacity credibility. With IEEE RTS-96 system added after wind farm as algorithm examples to carry out evaluation, this paper analyzed the wind power penetration rate, system reserved capacity and forced outage rate of routine generators etc impacts on wind farm capacity credibility, which verified the correctness and validity of the method.
Key words: wind farm; capacity credibility; polymorphic generators; wind power penetration rate
参考文献
[1] 中国可再生能源学会风能专业委员会.2012年中国风电装机容量统计[J].风能,2013(3):44-55.
[2] 国家发展和改革委员会.可再生能源发展“十二五”规划[J].太阳能,2012(16):6-19.
[3] 王海超,鲁宗相,周双喜.风电场发电容量可信度研究[J].中国电机工程学报,2005,25(10):103-106.
[4] 鲍爱霞.大规模风电场容量可信度的分析及对华东电网备用的影响[J].中国电机工程学报,2009,29(S1):34-38.
[5] Karki R, Po H, Billinton R.A simplified wind power generation model for reliability evaluation[J].IEEE Transactions on Energy Conversion,2006,21(2):533-540.
[6] Vallee F, Lobry J, Deblecker O.System Reliability Assessment Method for Wind Power Integration[J].IEEE Transactions on Power Systems, 2008,23(3):1288-1297.
[7] 梁双,胡学诺,张东霞,等.考虑风速变化特性的风电容量可信度评估方法[J].中国电机工程学报,2013,33(10):18-27.
[8] 钟浩,唐民富.风电场发电可靠性及容量可信度评估[J].电力系统保护与控制,2012,40(18):75-80.
[9] Amelin M.Comparison of Capacity Credit Calculation Methods for Conventional Power Plants and Wind Power[J].IEEE Transactions on Power Systems,2009,24(2):685-691.
[10] 张硕,李庚银,周明.考虑输电线路故障的风电场容量可信度计算[J].中国电机工程学报,2010,30(16):19-25.
[11] 张宁,康重庆,陈治坪,等.基于序列运算的风电可信容量计算方法[J].中国电机工程学报,2011,31(25):1-9.
[12] Vallee F, Lobry J, Deblecker O.Impact of the Wind Geographical Correlation Level for Reliability Studies[J].IEEE Transactions on Power Systems,2007,22(4):2232-2239.
[13] 梁双,胡学浩,张东震.光伏发电置信容量的研究现状与发展趋势[J].电力系统自动化,2011,35(19):101-107.
[14] 杨秀媛,肖洋,陈树勇.风电场风速和发电功率预测研究[J].中国电机工程学报,2005,25(11):1-5.
[15] 张硕,李庚银,周明,等.风电场可靠性建模[J].电网技术,2009,33(13):37-41.