提出了一种根据永磁同步电机(PMSM)转速来调节交轴电压的最大转矩法。算法对电压极限矢量圆与电流极限矢量圆定量分析,找到电机稳定运行时的最大转矩点,通过在电压极限矢量圆补偿定子电阻压降修正最大转矩点。通过直接给定交轴电压的方式,充分利用修正最大转矩点的电磁转矩,提高电机的负载能力和抗干扰能力。仿真验证了该算法的有效性和可行性。对于最大转矩点的定量分析,使此模型具有良好的可移植性。

The maximum point of the motor at given speed was found by a quantitative analysis of both the voltage limit vector circle and the current limit vector circle. The maximum torque point was corrected by compensating stater resistance voltage at the voltage limit vector. Through the direct given crossaxis voltage to take full advantage of this point of electromagnetic torque, the motor load capacity and antijamming capability were improved. The simulation proved that the algorithm had been well designed in terms of validity and feasibility. The model has a good portability by the quantitative analysis of the maximum torque point.

TM 351

河北省高层次人才项目(E2015100007)