牵引供电系统综合负荷实测建模  

Measurement-Based Composite Load Modeling of Traction Power Supply System

作　　者：张永旺[1] 李欣然[1] 李金鑫[1] 孙谦[1] 张广东[2] 

机构地区：[1]湖南大学电气与信息工程学院,长沙410082 [2]甘肃电力科学研究院,兰州730050

出　　处：《电力系统及其自动化学报》2012年第1期94-99,共6页Proceedings of the CSU-EPSA

基　　金：高等学校博士学科点专项科研基金资助项目(20070532052)

摘　　要：针对实测建模中牵引负荷时变性的问题,采用负荷特性分类及综合方法进行了一定程度的解决;通过研究牵引供电系统的结构原理,提出了一种改进型牵引供电系统综合负荷模型,运用总体测辨法对各个聚类中心等效样本进行参数辨识,给出了牵引负荷几种典型工况的推荐参数,为牵引负荷实测模型应用于电力系统仿真提供了基础。算例结果表明,改进型模型对负荷特性具有满意的描述能力,同时也验证了负荷特性分类及综合方法的有效性和合理性。To settle the time-variation problem of traction load in measurement-based modeling,the method of classification and synthesis of load characteristics is used in this paper.An improved composite load model of traction power system is introduced based on the structure principle of the traction power supply system.According to the parameters identification of equivalent sample of each cluster centers,recommended parameters of several typical traction conditions are given,and which provides the basis for the traction load measurement model applying to the power system simulation.Results of an instance showed that the improved model has a satisfying description on the load characteristics and the effectiveness and rationality of the method of the load characteristics classification and synthesis are verified.

关 键 词：分类及综合 牵引负荷 总体测辨 推荐参数 

分 类 号：TM714[电气工程—电力系统及自动化]