Variable frequency motor speed regulation needs to be completed by frequency converter, for ordinary asynchronous motors, we are mainly considered in the design of the performance parameters are overload capacity, starting performance, efficiency and power factor. Then the following is a simple understanding of Senli Motor Xiaobian.
Variable frequency motorBecause the critical slip rate is inversely proportional to the power supply frequency, the critical slip rate can be approached1Therefore, the overload capacity and starting performance do not need to be considered too much, and the key problem to be solved is how to improve the motor's ability to adapt to non-sine wave power.
Variable frequency motorThe frequency converter itself is not included, but the speed can be adjusted by the frequency given by the frequency converter, according to the formulan=f/p*60; In the formulapand60The second is fixed and only the frequency can be adjusted by the inverter to achieve the function of adjusting the motor speed.
Variable frequency motor is an asynchronous motor designed for variable frequency speed regulation, (there are also synchronous motor speed regulation motors) its speed is adjusted according to the change in frequency. Variable frequency motor and inverter are two parts.
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