一种新型的直线异步电机参数测量方案  

A New Parameter Measurement Scheme for Single Linear Induction Motors

作　　者：徐伟[1] 孙广生[1] 李耀华[1] 金能强[1] 

机构地区：[1]中国科学院电工研究所

出　　处：《电工技术学报》2007年第6期54-58,共5页Transactions of China Electrotechnical Society

摘　　要：单边直线异步电机(SLIM)的T型电路参数是电机控制的基础,它在无速度传感器控制和在线参数辨识中更为重要。SLIM相对旋转异步电机(RIM)存在气隙大、边缘效应等,若采用RIM开路和短路试验方法,会给参数测量带来较大误差。本文提出一种适合SLIM参数测定的新型方案,只需测量电机输入端的总功率、相电压、相电流和频率4个量,计算出初级电阻、初级漏感、次级电阻、次级漏感、气隙电感和铁损电阻。电机的特性分析表明,该方法真实有效,具有一定的参考价值。The control of SLIM is based on its T-equivalent-circuit parameters. The parameters are very essential in the speed sensorless control and online parameter identification. The SLIM parameters have clear errors to the real values on the base of the RIM parameter measurement method because there are larger air gap and edge effect. This paper proposes a new scheme suitable for SLIM parameter detection. It only needs input total power, phase voltage, phase current, frequency, and then computes primary resistance, primary leakage induction, secondary resistance, secondary leakage induction, air induction and iron loss resistance. The performance analysis of SLIM indicates that this method is very effective and valuable.

关 键 词：单边直线异步电机 开路试验 短路试验 参数测量 等效电路 

分 类 号：TM359[电气工程—电机]