when the air-gap flux of the induction motor is saturated, the conventional adaptive speed estimator cannot avoid the influence of the non-linear inductance variation.
当交流电机气隙磁通发生饱和时,常规的自适应速度估算法无法避免由于电感量的非线性变化带来的影响。
a method for calculating air-gap flux density was proposed and the maximum error was 6.
用数值模拟方法研究了金属管道裂纹尖端磁通量密度的分布情况。
but wvf can only control the air-gap flux and can not adjust the torque.
调压调频控制只控制了电机的气隙磁通,而不能调节转矩。
a new scheme is presented in this thesis, which is based on an estimation of the torque and the air-gap flux fully independent from stator resistance variations.