新型电励磁双凸极电机发电系统建模研究

发布时间：2018-06-20 08:41

本文选题：电励磁双凸极电机 + 发电系统　；参考：《中国电机工程学报》2017年17期

【摘要】：电励磁双凸极电机(wound-excited doubly salient machine,WEDSM)的精确建模是对其进行各项研究的基础,传统的WEDSM建模方法通过构造各相电枢绕组的电感或磁链模型以搭建WEDSM的总体模型,该方法虽计及电枢反应但忽略了励磁磁场的影响,所以不适用于WEDSM发电系统。该文首先研究一种新型的电枢绕组自感Lp和电枢绕组与励磁绕组间互感Lpf的非线性建模方法,该方法通过分析WEDSM自身的电感特性以及励磁磁场与电枢反应对电感的影响,拟合出同时计及励磁电流和电枢电流的影响系数,以建立Lp和Lpf的模型。同时本文基于励磁自感Lf的幅值在定转子对齐位置处只与励磁电流及该定子齿上的电枢电流有关的特性提出一种励磁绕组自感的精确非线性建模方法。在此基础上,该文建立发电系统模型,有限元仿真结果以及实验波形验证了模型的精确性。
[Abstract]:The accurate modeling of doubly salient electroexcitation motor (Wound-excited doubly salient machineWEDSM) is the basis of its research. The traditional WEDSM modeling method constructs the inductance or flux linkage model of each phase armature winding to build the overall model of WEDSM. This method is not suitable for WEDSM because it takes armature reaction into account but neglects the effect of excitation magnetic field. In this paper, a new nonlinear modeling method for armature winding self-inductance LP and mutual inductance between armature winding and excitation winding is studied in this paper. The inductance characteristics of WEDSM and the effect of excitation magnetic field and armature reaction on inductance are analyzed. The influence coefficients of excitation current and armature current are taken into account in order to establish the model of LP and LP. At the same time, based on the characteristic that the amplitude of excitation self-inductance L _ f is only related to the excitation current and the armature current on the stator tooth at the position of stator and rotor alignment, an accurate nonlinear modeling method for self-inductance of excitation winding is proposed in this paper. On this basis, the model of power generation system is established, and the accuracy of the model is verified by finite element simulation results and experimental waveforms.
【作者单位】：多电飞机电气系统重点实验室(南京航空航天大学);
【分类号】：TM31

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