从机电一体化的角度提出了小功率低速直驱笼型异步电机(LLDSM)额定电压的确定方法,研究了额定电压与最大转矩倍数和变频电源最大输出电压之间的关系。论述了LLDSM极数和槽数的选择原则,并仿真分析了不同极槽配合时气隙磁场的谐波含量。最后对制作的LLDSM进行了试验,测得电机转矩与电流和电压的关系曲线,并对试验数据进行了研究分析,验证了理论分析的正确性。

From the view point of mechatronics, a method to determine the rated voltage of lowpower lowspeed directdrive squirrelcage asynchronous motor (LLDSM) was presented. The relationship among the rated voltage, the maximum torque multiple and the maximum output voltage of variable frequency power supply was researched. The selection principle of pole number and slot number of LLDSM was discussed, and the harmonic content of air gap magnetic field in different poleplot match was simulated and analyzed. Moreover, the prototype of LLDSM was tested, and the relationship curves of motor torque versus current and voltage were measured. The experimental data were studied and analyzed to verify the correctness of the theoretical analysis.

TM 343

国家重点研发计划项目(2017YBF1300900)