自励感应发电机馈入感应电动机的动态特征值分析

S. Kuo, Li Wang
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引用次数: 22

摘要

本文研究了为异步电机负载供电的隔离式自激感应发电机(SEIG)的暂态响应和动态稳定性。采用基于静止和同步旋转参照系的d-q轴小信号感应电机模型计算了不同工况下系统的特征值随时间的变化。研究的SEIG的非线性磁化曲线用一个切线连续函数来代替分段线性近似或多项式来表示,并且可以很容易地包含SEIG中的交叉饱和效应。分析结果表明,该方法可以从小信号稳定性的角度对系统的动态行为进行清晰的研究。实验室感应电机的实验结果证实了该方法的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dynamic eigenvalue analysis of a self-excited induction generator feeding an induction motor
This paper presents both transient responses and dynamic stability of an isolated self-excited induction generator (SEIG) supplying an induction motor load. The d-q axis small-signal induction-machine models based on stationary and synchronously rotating reference frames are employed to calculate system eigenvalues versus time under different operating conditions. A nonlinear magnetizing curve of the studied SEIG is represented by an arctangent continuous function to replace piecewise linear approximations or a polynomial, and the cross saturation effect in the SEIG can be easily included. From the analyzed results, the proposed method can give a clear investigation on system dynamic behavior from the viewpoint of small-signal stability. The experimental results obtained from laboratory induction machines confirm the validity of the proposed approach.
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