南方电网技术2018，Vol.12Issue(1)：62-69,8.DOI:10.13648/j.cnki.issn1674-0629.2018.01.010
考虑相关性的含风电的配电网无功优化
Reactive Power Optimization in Distribution Network with Wind Turbine Generators Considering the Correlations
摘要
Abstract
With the integration of a large number of the intermittent distributed generators such as wind turbine generators(WTG) into distributed system,the influences brought by random and correlated variables have to be taken into consideration in the reactive power optimization of distribution network. Firstly,rank correlation coefficient is used to represent the the correlations between wind speed and load demand,and the initial correlated samples are generated by means of Latin hypercube sampling(LHS) techniques. In addi-tion,the simultaneous backward reduction is applied to reduce the scenarios to improve the computation efficiency. Secondly,a reac-tive power optimization model based on multiple scenarios is proposed,considering the volt/var control devices such as shunt capacitor (SC),static var compensation (SVC),on-load tap changer(OLTC). And then, second order cone(SOC) relaxation is applied to transform the traditional reactive power optimization model to mixed integer second order cone programming(MISOCP) model,which can be tractably solved. Finally,the rationality of the proposed model is verified by the improved IEEE 33 node distribution network, and the effects of correlations on the reactive power optimization are emphatically studied.关键词
风电机组/相关性/无功优化/拉丁超立方采样/场景缩减/混合整数二阶锥规划Key words
wind turbine generators/correlations/reactive power optimization/Latin hypercube sampling/scenario reduction/mixed integer second order cone programming分类
信息技术与安全科学引用本文复制引用
郑能,丁晓群,管志成,郑程拓,蒋煜..考虑相关性的含风电的配电网无功优化[J].南方电网技术,2018,12(1):62-69,8.基金项目
江苏高校优势学科建设工程资助项目 （）
国网山东省电力公司科技项目(5206021400NP).Supported by the Priority Academic Program Develop-ment of Jiangsu Higher Education Institutions （5206021400NP）
the State Grid Shandong Elec-tric Power Corporation Science and Technology Program(5206021400NP). （5206021400NP）
