间接与直接考虑配电网的2种负荷模型对比研究  

Comparison between the load models with considering distribution network directly or indirectly

作　　者：邵正炎[1] 史可琴 汤涌[3] 鞠平[1] 范越 杨文宇 陈谦[1] 茆超[1] 

机构地区：[1]河海大学,江苏南京210098 [2]西北电网公司调度中心,陕西西安710000 [3]中国电力科学研究院,北京100085

出　　处：《中国电力》2008年第3期29-31,共3页Electric Power

基　　金：国家自然科学基金资助项目(50595412);国家重点基础研究发展计划(973)资助项目(2004CB217901);西北电力公司项目(2007126)

摘　　要：针对间接考虑配电网络的传统负荷模型(CLM)和直接考虑配电网络的综合负荷模型(SLM),从几个方面对2种负荷模型作了比较。对2种负荷模型初始化,结果表明本质上是一致的;确定负荷模型的参数,结果表明SLM不能采用单一的参数确定方法,总的综合电抗是可以唯一辨识的,应采用统计综合法先确定等效配电网线路阻抗、再采用总体测辨法确定其他重点参数;通过实际电网的实测结果比较了2种负荷模型的参数,结果表明CLM模型的综合电抗基本上小于SLM模型的综合电抗,可是电动机比例大小关系不确定。Two kinds of load models were compared in this paper, one is a classic load model （CLM） which could consider the effects of distribution network indirectly, and another is a synthesis load model （SLM） which could consider the effects of distribution network directly. In the aspect of initialization, two models have no nature difference. In the aspect of parameter determination, the parameters of SLM can not be determined with a single methodology, the composite impedance can be identified uniquely, and it is recommended to determine the equivalent distribution line impedance at first and then to identify the induction motor impedance. With measured results, the model parameters were compared, the results show that the composite impedance of CLM is mostly less than SLM, however, there is no definite rule for motor percentage between two models.

关 键 词：电力系统仿真 电力负荷 模型 配电网 参数辨识 

分 类 号：TM743[电气工程—电力系统及自动化] TM714