实用感应电机饱和模型

A practical approach to modelling induction machine saturation

文章提出了基于H-G图建立感应电机饱和模型的新方法,它只需用H-G图中每个饱和点对应的3个参数来描述电机的饱和。另外这种方法还可以推广到考虑其他影响因素的电机,比如温度和集肤效应时的电机建模。文章将这种模型与感应电机有、无交叉耦合的两种传统模型进行了比较。仿真结果显示,这种方法较交叉耦合饱和模型在精度和准确度上有更多优点,特别是在启动和满负载运行时。

This paper deals with a new approach for modelling induction machine saturation based on the so-called H-G diagram. This allows the description of the saturation in the machine using only three parameters that are instantaneously determined by a plotted circle(H- G diagram) for each saturation point. Furthermore, this approach can be extended to induction machine modelling taking into account other phenomena such as temperature and skin effects. The proposed approach has been compared to the conventional induction machine modelling with and without cross-saturation. Simulation results have shown that the proposed approach has some advantages over cross-saturation such as simplicity and accuracy, especially during the induction machine starting-phase and also when it is sufficiently loaded. Copyright c ○ 2004 John Wiley & Sons, Ltd.