不同模型参数的感应电动机功率电压特性分析

针对负荷模型参数选取不当而造成感应电动机功率电压特性计算不准确导致电压失稳的问题,通过解析计算和PSD-BPA时域仿真,得到感应电动机的静态稳定临界电压指标和功率电压特性曲线,为电压稳定分析和选择感应电动机负荷模型参数提供依据。结果表明:采用本文方法计算的感应电动机负荷静态功率电压特性比传统的ZIP负荷模型模拟感应电动机负荷静态功率电压特性精度要高。

Analysis on power and voltage characteristics of induction motors with different model parameters

To solve the problem that improper selection of load model parameters caused incorrectcomputation of power and voltage characteristics of induction motor leading to voltage instability, bynumerical calculation and PSD-BPA time-domain simulation obtains the static state critical voltageindex and the power and voltage characteristic curve, provides the basis for voltage stabilizationanalysis and load model parameters selection of induction motor. The result shows that: compares withthe static state power and voltage characteristics of induction motor adopting by traditional ZIP loadmodel, the method of this paper improves the computational accuracy.