接于高压母线的电动机负荷等值模型  

Equivalent Model for Induction-motor Load Connected to High Voltage Bus

作　　者：张东霞[1] 汤涌[1] 朱方[1] 张红斌[1] 

机构地区：[1]中国电力科学研究院,北京市海淀区100085

出　　处：《中国电机工程学报》2006年第6期14-18,共5页Proceedings of the CSEE

基　　金：国家电网公司科学技术项目(SGKJ[2003]283)。

摘　　要：在计及配电网电抗、低压无功补偿电容器作用的条件下,对仿真计算中接在较高电压等级的电动机负荷等值模型进行了理论推导。该等值模型在不改变电动机模型的情况下,仅需调整电动机参数和电动机初始负载率,即可等值描述接于高压母线的电动机的静态和动态特性。研究结果对电动机负荷模型参数选择提供参考。In the paper, an equivalent model for an induction motor load moved to high-voltage bus from low-voltage bus is presented, the reactance of distribution network and reactive power compensation connected to low voltage bus considered. The equivalent model has the same mathematical equations as the original induction motor at low voltage bus. Only by modifying the parameters and the initial load factor of the motor, the synthetical characteristics of the induction motor load, the reactance of distribution network and reactive power compensation are equivalently modeled. The research result gives a reference for selecting parameters of induction motor load model in power system simulation.

关 键 词：电力系统 配电网 高压母线 电动机负荷 等值模型 无功补偿 

分 类 号：TM715[电气工程—电力系统及自动化]