Wholesale 120v ac motors- - high quality, low cost, short delivery period
The emergence of AC motors has greatly improved the degree of mechanical automation and production efficiency. The system has requirements for high-speed or low-speed operation and dynamic response of the rotational speed. Therefore, the electromagnetic design plays an important role and achieves a good working effect.
First, reduce the stator and rotor resistance as much as possible. Reducing the stator resistance reduces the copper loss of the fundamental wave to compensate for the increase in copper consumption caused by higher harmonics.
Second, in order to suppress the higher harmonics in the current, it is necessary to appropriately increase the inductance of the AC motor. However, the rotor slot leakage resistance is large, and the skin effect is also large, and the high-order harmonic copper consumption is also increased. Therefore, the size of the AC motor leakage reactance must take into account the reasonableness of the impedance matching within the entire speed range.
Third, the main magnetic circuit of the AC motor is generally designed to be unsaturated. One is to consider the higher harmonics to deepen the saturation of the magnetic circuit. The other is to increase the output voltage of the inverter in order to increase the output torque at low frequencies.
The more reasonable the electromagnetic design of the AC motor, the higher the efficiency of the motor. If you have any other questions about the AC motor, please call our hotline.
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