| 计及分支负荷分布的配电网合环稳态电流计算 |
| |
| 引用本文： | 白玉东,张跃丽,王承民,余浩斌,连鸿波.计及分支负荷分布的配电网合环稳态电流计算[J].现代电力,2011,28(6):34-39. |
| |
| 作者姓名： | 白玉东 张跃丽 王承民 余浩斌 连鸿波 |
| |
| 作者单位： | 1. 上海交通大学电气工程系,上海,200240
2. 上海市电力公司松江供电公司,上海,201600 |
| |
| 摘 要： | 以防止合环操作而引起的线路过载或继电保护误动为目的,提出一种基于戴维南等值的合环稳态电流计算方法.该方法根据实时测量的负荷节点电压、电流相量,以戴维南定理为基础,将整个系统简化为两节点系统,在此基础上推导出稳态电流计算公式,并进一步引入负荷分支系数,将不同分布类型的分支负荷等值为相应的负荷阻抗,修正负荷等效阻抗,以消除配电网分支负荷分布对合环稳态电流计算的影响,使得合环稳态电流计算更加准确.上海某电网的实际计算分析表明本文所提方法实用有效.
|
| 关 键 词： | 配电网 戴维南等值 合环操作 稳态电流 负荷分支系数 |
Calculation of the Loop Closing Steady-state Current in Distribution Network by Considering the Branch Load Distribution |
| |
| BAI Yudong
,
ZHANG Yueli
,
WANG Chengmin
,
YU Haobin
,
LIAN Hongbo.Calculation of the Loop Closing Steady-state Current in Distribution Network by Considering the Branch Load Distribution[J].Modern Electric Power,2011,28(6):34-39. |
| |
| Authors: | BAI Yudong ZHANG Yueli WANG Chengmin YU Haobin LIAN Hongbo |
| |
| Affiliation: | BAI Yudong1,ZHANG Yueli1,WANG Chengmin1,YU Haobin2,LIAN Hongbo2 (1.Department of Electric Engineering,Shanghai Jiaotong University,Shanghai 200240,China,2.Songjiang Power Supply Company,SMEPC,Shanghai 201600,China) |
| |
| Abstract: | A method for loop closing steady-state current calculation is proposed based on Thevenin's equivalent theory for preventing circuit overload or protective system false operation caused by loop closing operation in this paper.According to the voltage and current phasor at the load bus which is online measured,the whole system can be simplified into a 2-nodes system based on Thevenin's equivalent theory.Thus the steady state current calculation formula is deduced.Furthermore,the branch load of different distr... |
| |
| Keywords: | distribution network Thevenin's equivalent theory loop closing operation steady state current load branch factor |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
