电网技术2012，Vol.36Issue(4)：45-50,6.
考虑风速相关性的概率潮流计算及影响分析
Calculation of Probabilistic Load Flow Considering Wind Speed Correlation and Analysis on Influence of Wind Speed Correlation
摘要
Abstract
Correlation of wind speed among different find farms affects the calculation results ofprobabilistic load flows. By means of performing linear transform of independent multidimensional random samples the multi-dimensional random samples with arbitrary correlation are obtained, thus the probabilistic load flow in which the Correlation of wind speed is taken into account can be calculated. In view of the feature of asynchronous wind power generator that it absorbs reactive power, to describe such a feature a variable coefficient quadratic polynomial model is proposed. At the same time that the random disturbance of load is considered, the influencing variation law of wind speed correlation on nodal probabilistic density of nodal voltage and probabilistic distribution of branch load flow as well as the configuration of reactive power compensation capacity at grid-connecting point of wind farms under the consideration of wind speed correlation are researched and analyzed. Simulation results of IEEE 30-bus system to which four wind farms are added show that the proposed method is effective and feasible; considering wind speed correlation the analysis and evaluation of the influences of wind farms on system static voltage and transmission of branch transmission power can be more reasonable, thus it is possible to offer more accurate reference information to system planning and determination of operation modes.关键词
风速相关性/概率潮流/蒙特卡罗模拟/无功补偿Key words
wind speed correlation/probabilistic load flow/Monte-Carlo simulation/reactive power compensation分类
信息技术与安全科学引用本文复制引用
邓威,李欣然,徐振华,宋军英,陈德生,陈冬林..考虑风速相关性的概率潮流计算及影响分析[J].电网技术,2012,36(4):45-50,6.基金项目
国家自然科学基金项目 （）
“可再生能源电力技术”湖南省重点实验室开放基金项目（2010KFJJ003）. （）
