Abstract：Wind power has the features of uncertainty and intermittence.So firstly,the concept of the wind power pre-penetration rate is proposed.Combined with wind power forecast accuracy,the wind power forecast error is presented.Secondly,the model of wind power forecast error growth is established by considering the variability of wind power forecast error over time,and the model of wind power uncertainty (WPU) based on error growth is established.On the basis of the weight interval of schedulable load (WISL),schedulable load (SL),and energy storage system (ESS),the wind cost model is established,and a coordinated optimization dispatch model for wind power integration considering load benefits is established.Finally,the Matlab is used to solve the optimization model.Taking the power system of a certain area as the research object,the results show that the given method can reduce the wind curtailment rate and thermal power reserve capacity.
[1] Ortega-Vazquez M A,Kirschen D S.Estimating the spinning reserve requirements in systems with significant wind power generation penetration[J].IEEE Transactions on Power Systems,2009,24(1):114-124. [2] 杨柳青,林舜江,刘明波,等.考虑风电接入的大型电力系统多目标动态优化调度[J].电工技术学报,2014,29(10):286-295. Yang Liuqing,Lin Shunjiang,Liu Mingbo,et al.Multi-objective dynamic optimal dispatch for large-Scale power systems considering wind power penetration[J].Transactions of China Electrotechnical Society,2014,29(10):286-295. [3] Wang Caixia,Lu Zongxiang,Qiao Ying.A consideration of the wind power benefits in day-ahead scheduling of wind-coal intensive power systems[J].IEEE Transactions on Power Systems,2013,28(1):236-245. [4] 夏澍,周明,李庚银.含大规模风电场的电力系统动态经济调度[J].电力系统保护与控制,2011,39(13):71-77. Xia Shu,Zhou Ming,Li Gengyin.Dynamic economic dispatch of power system containing large-scale wind farm[J].Power System Protection and Control,2011,39(13):71-77. [5] Bludszuweit H,Domínguez-Navarro J A,Llombart A.Statistical analysis of wind power forecast error[J].IEEE Transactions on Power Systems,2008,23(3):983-991. [6] Amjady N,Keynia F,Zareipour H.Short-term wind power forecasting using ridgelet neural network[J].Electric Power Systems Research,2011,81(12):2099-2107. [7] 丁华杰,宋永华,胡泽春,等.基于风电场功率特性的日前风电预测误差概率分布研究[J].中国电机工程学报,2013,33(34):136-144. Ding Huajie,Song Yonghua,Hu Zechun,et al.Probability density function of day-ahead wind power forecast errors based on power curves of wind farms[J].Proceedings of the CSEE,2013,33(34):136-144. [8] Doherty R,O’Malley M.A new approach to quantify reserve demand in systems with significant installed wind capacity[J].IEEE Transactions on Power Systems,2005,20(2):587-595. [9] 张国强,吴文传,张伯明.考虑风电接入的有功运行备用协调优化[J].电力系统自动化,2011,35(12):15-19. Zhang Guoqiang,Wu Wenchuan,Zhang Boming.Optimization of operation reserve coordination considering wind power integration[J].Automation of Electric Power System,2011,35(12):15-19. [10]严干贵,刘嘉,崔杨,等.利用储能提高风电调度入网规模的经济性评价[J].中国电机工程学报,2013,33(22):45-52. Yan Gangui,Liu Jia,Cui Yang,et al.Economic evaluation of improving the wind power scheduling scale by energy storage system[J].Proceedings of the CSEE,2013,33(22):45-52. [11]南晓强,李群湛,赵元哲,等.计及风电预测可信度的经济调度及辅助决策方法[J].电力系统自动化,2012,37(19):61-67. Nan Xiaoqiang,Li qunzhan,Zhao Yuanzhe,et al.An economic dispatch and decision making method based on credibility of wind power forecasting[J].Automation of Electric Power System,2012,37(19):61-67. [12]Luo F,Meng K,Zhao Y D,et al.Coordinated operational planning for wind farm with battery energy storage system[J].IEEE Transactions on Sustainabe Energy,2015,6(1):253-262. [13]王珂,姚建国,姚良忠,等.电力柔性负荷调度研究综述[J].电力系统自动化,2014,38(20):127-135. Wang Ke,Yao Jianguo,Yao Liangzhong,et al.Survey of research on flexible loads scheduling technologies[J].Automation of Electric Power Systems,2014,38(20):127-135. [14]刘新东,方科,陈焕远,等.利用合理弃风提高大规模风电消纳能力的理论研究[J].电力系统保护与控制,2012,40(6):35-39. Liu Xindong,Fang Ke,Chen Huanyuan,et al.Research on rational wind power casing theory for large-scale wind power integration improvement[J].Power System Protection and Control,2012,40(6):35-39. [15]鞠平,秦川,黄桦,等.面向智能电网的建模研究展望[J].电力系统自动化,2012,36(11):1-6. Ju Ping,Qin Chuan,Huang Hua,et al.Survey of research trends of power system modeling geared to smart grid[J].Automation of Electric Power System,2012,36(11):1-6. [16]曾丹,姚建国,杨胜春,等.柔性负荷与电网互动的系统动力学仿真模型[J].中国电机工程学报,2014,34(25):4227-4233. Zeng Dan,Yao Jianguo,Yang Shengchun,et al.System dynamics simulation model of flexible load in interactive power grid[J].Proceedings of the CSEE,2014,34(25):4227-4233. [17]向月,刘俊勇,魏震波,等.考虑可再生能源出力不确定性的微电网能量优化鲁棒模型[J].中国电机工程学报,2014,34(19):3063-3072. Xiang Yue,Liu Junyong,Wei Zhenbo,et al.Robust model of microgrid energy optimization with uncertain renewable energy sources[J].Proceedings of the CSEE,2014,34(19):3063-3072.
2016, Vol. 31 
