文档介绍：T程硕i?学位论文张家港城市配电网规划研究摘要城市配电网是电力系统的重要组成部分,是连接电源和负荷的桥梁,也是城市现代化建设的重要基础设施。随着我国经济持续发展,很多城市出现了城市配电网建设既严重滞后于城市主电网建设的情况,又未能实现城市配电网适度超前于地方经济发展的要求。对城市配电网进行合理规划和有效建设,是解决电力供需矛盾、提高供电可靠性的主要途径,具有很高的经济效益和社会效益。本论文研究张家港城市配电网的规划工作,包括城市配电网的现状分析、负荷预测、网架规划以及规划方案的可靠性校验。文中首先对中压配电网现状进行了较为详细的分析,指出了现有配电网络存在的问题。然后,根据张家港市电力电量、负荷的历史数据和地方经济发展的趋势,通过多种负荷预测方法,确定了规划年(2015年) 的负荷水平。再结合实际情况,构建可行的城市配电网网架调整方案,提出了相应的过渡措施。最后,根据潮流计算结果,还进行了规划方案的可靠性校验和经济性评估。关键词:配电网规划负荷预测网架结构可靠性分析 1=程硕:上学位论文 ABSTRACT City work is animportant part ofthepower system,a bridgebetween theelectricalsupply ’Salso all important base ofthecity modernize therapid development of the economy,the work constructionseriously lags behind work construction inmany cities,which doesn’tsatisfy therequirement that work shouldappropriately exceed the localeconomy rationalplanning and effectiveconstruction of the work is a main way tosettlethe conflictbetween the supply and requirement,and toimprove thereliability ofpower itwill create great economical benefitand socialbenefit. This paper had a research on theplan ofZhangJiagang。S work including thepresent situationanalysis,the loadforecasting,the work planning work and thereliability check the problems inthepresent work were pointed outwith thespecificanalysis of thepresent middle voltage thenbased On thehistoricaldataof electricpower and the current trendoftheeconomic development inZhangJiagang,the load levelin theprogramming year(205)Was confirmed through several methods ofload inconsideration ofactuality,a work planning was intrdouced and thecorresponding measures forthetransition according tothe resultsofthetrendcaculation,thereliability check andtheeconomic estimation oftheplan weregiven. Key words:workplanning,work struction,reliability analysis T程硕士学位论文张家港城市配电网规划研究 1绪论 ,是连接电源和负荷的桥梁,也是城市现代化建设的重要基础设施。随着城市经济的迅速发展,城市电气化程度的不断提高, 城市配电网出现了“有电送不进、供不出、用不上”