单边直线感应电机等效电路参数研究

Research on the equivalent circuit parameter of single linear induction motor

单边直线感应电机(SLIM)相对于旋转感应电机(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。文章提出的一种适合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,即可计算出初级电阻、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 SLIM parameter has clear error to its real value on the base of the RIM parameter measurement method because it has larger air gap and edge effect. This paper proposes a new scheme suited 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.