采用改进牛顿法计算配电网理论线损  

Use improved Newton method to calculate theoretical line loss of distribution network

作　　者：王晓明[1] 张力[1] 智勇[2] 周喜超[2] 许天鹏[1] 穆星星[1] 

机构地区：[1]兰州理工大学电气工程与信息工程学院,甘肃兰州730050 [2]甘肃电力科学研究院,甘肃兰州730050

出　　处：《工矿自动化》2013年第1期30-33,共4页Journal Of Mine Automation

基　　金：甘肃电力科学研究院科研项目(2012101014)

摘　　要：介绍了传统配电网理论线损计算方法,指出电量法和均方根法存在因未充分考虑负荷曲线变化而容易导致理论线损偏小、管理线损偏大的问题;提出采用改进牛顿法计算配电网理论线损的方案,根据某配电网各变电站24h的电量记录进行电量潮流计算,得出该配电网总线损;分别采用电量法、均方根法、改进牛顿法计算某10kV配电网线路的理论线损,结果表明,与传统配电网理论线损计算方法相比,采用改进牛顿法得出的结果更接近统计线损值。The paper introduced traditional calculation methods of theoretical line loss of distribution network, and pointed out that electricity quantity method and root-mean-square method would cause too small theoretical energy loss and too large management line loss because of insufficient consideration of change of load curve. For above problems, it put forward a calculation scheme for theoretical line loss of distribution network by use of improved Newton method, which does power flow calculation according to power records of 24 h of each substation in the whole distribution network, so as to obtain total line loss of the distribution network. It used electricity quantity method, root-mean-square method and the improved Newton method to calculate theoretical line loss of a 10 kV distribution network separately, and got a conclusion that results calculated by the improved Newton method are closer to statistical value than the other methods.

关 键 词：配电网 线损 理论线损 潮流计算 改进牛顿法 

分 类 号：TD60[矿业工程—矿山机电]