【Key words】 induction motor; rotor circuit time constant; electric vehicle; vector controlS;
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It directly controls the electromagnetic torque and stator flux, using the analyzing method of space vector and stator flux orientation.
它采用空间矢量的分析方法,采用定子磁场定向,直接对电动机的电磁转矩和定子磁链进行控制。
The presented phase Angle PWM method is centering attention on motor stator voltage space vector and controls the vector Angle to vary linearly and so reduces higher harmonics in voltage wave.
本文提出的角度PWM方法着眼于电机的定子电压空间矢量,使其矢量角均匀变化,减小电压波形中的高次谐波分量。
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