计及风速时空相关性的含风电场电力系统动态随机最优潮流计算_孙国强.doc

——————————————————————————————————————————————— 计及风速时空相关性的含风电场电力系统动态随机最优潮流计算_孙国强 第35卷 第17期 4308 2015年9月5日 中 国 电 机 工 程 学 报 Proceedings of the CSEE Vol.35 No.17 Sep. 5, 2015 ?2015 Chin.Soc.for Elec.Eng. (2015) 17-4308-10 中图分类号：TM 76 DOI：10.13334/j.0258-8013.pcsee.2015.17.004 文章编号：0258-8013 计及风速时空相关性的含风电场电力系统动态 随机最优潮流计算 孙国强1，李逸驰1，向育鹏1，杨义2，黄文进2，卫志农1，孙永辉1 (1．可再生能源发电技术教育部工程研究中心(河海大学)，江苏省 南京市 210098； 2．盐城供电公司，江苏省 盐城市 224005) Dynamic Stochastic Optimal Power Flow of Wind Integrated Power System Considering Temporal and Spatial Correlation of Wind Speed SUN Guoqiang1, LI Yichi1, XIANG Yupeng1, YANG Yi2, HUANG Wenjin2, WEI Zhinong1, SUN Yonghui1 (1. Research Center for Renewable Energy Generation Engineering, Ministry of Education, Hohai University, Nanjing 210098, Jiangsu Province, China; 2. Yancheng Power Supply Company, Yancheng 224005, Jiangsu Province, China) ABSTRACT: Large-scale wind power integrates into power grid. The fluctuant and intermittent nature of wind speed greatly challenges the conventional dynamic optimal power flow. Considering randomness as well as temporal and spatial correlation of wind speed, a dynamic stochastic optimal power flow model of wind integrated power system based on chance constrained programming was built. Based on primal-dual decomposed interior point method, an optimal dispatching was got through the deterministic optimal power flow. The dynamic probabilistic power flow based on cumulant method considering correlation was used to calculate probability distributions of state variables. New upper and lower bounds to the corresponding variables were formed if chance constraints were violated. The iteration terminated until a final optimal dispatching was found with all the chance constraints satisfied. The precision and efficiency of the algorithm is verified through the stimulation of modified IEEE14-bus system. On such basis, the impacts of random branch outages and