摘要
提出了一种架空和电缆混合馈线的电压损耗快速估算方法。基于架空线路和电缆线路的电压损耗分析构造了混合馈线最大电压损耗的非线性估算模型,模型中的变量包括最长供电路径所含架空线长度、电缆线长度、和馈线首端的有功无功功率。运用Gauss-Raphson方法给出了估算模型中参数的求解方法。运用实测数据对所提模型和算法进行了仿真计算和分析,验证了该方法的有效性和可行性。
This paper presents a method for fast estimation of voltage loss in feeders consisting of overhead line and power cable. First,a nonlinear estimation model for maximum voltage loss in this kind of feeders is built based on the analysis of voltage loss along an over-head line and a cable. The model＇s independent variables include the lengths of both overhead line and power cable along the main trunk,a s well as the active and reactive powers into the sending end of the feeder. T hen the unknown parameters in the estimation model are solved by Gauss-Raphson method.At last,the data from actual distribution systems are employed to test the proposed model. Simulation results show that the proposed method is effective and feasible.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2010年第17期169-173,共5页
Power System Protection and Control
基金
国家自然科学基金项目(50677015)~~
关键词
配电网
架空线
电缆线
电压损耗
估算
distribution network
overhead line
power cable
voltage loss
estimation
