基于简化磁链模型的SRG自励发电  

Self-Excited SRG Based on Simplified Flux-Linkage Model

作　　者：杨岳峰[1,2] 张奕黄[1] 王素杰 张磊[4] 

机构地区：[1]北京交通大学电气工程学院,北京100044 [2]中国电力科学研究院,北京100192 [3]中机中电设计研究院,北京100044 [4]北京航空航天大学自动化学院,北京100083

出　　处：《电工技术学报》2009年第1期59-64,共6页Transactions of China Electrotechnical Society

摘　　要：提出了一种开关磁阻发电机(SRG)磁链解析模型,通过傅里叶变换和反正切函数拟合,仅需要5个特殊位置磁链参数即可建立较为精确的SRG磁链模型,同时给出了该简化磁链模型下的电压方程和转矩方程。与需要大量磁链数据的传统建模方法相比,本方法容易实现且计算效率高。利用该方法建立了SRG自励发电模型,研究了SRG自励发电性能,通过实验测得的电压、电流及其他一些特性曲线验证了这种新型建模方法的正确性。A novel simplified and fast-built flux-linkage analytical model for the switched reluctance generator （SRG） is proposed. By means of the Fourier series in expression of the current-dependent arctangent function, the proposed model can be built with only five flux-linkage data points of several special rotor positions. At the same time the voltage and torque equations of SRG are proposed with the method. Comparing to the conventional methods, which require numerous flux-linkage current-position data, the proposed model is of easy implementation and high computational efficiency. Based on the modeling method, a self-excited SRG model is built and the characteristics of the self-excited SRG are studied. The accuracy of the model is verified via comparison with laboratory measurements of the machine voltage and current waveforms as well as several characteristic curves. The proposed model is shown to have a good accuracy.

关 键 词：开关磁阻发电机 简化磁链 自励 傅里叶级数 

分 类 号：TM352[电气工程—电机]