What is the function of a frequency converter on an electric motor?
1, when starting, can reduce the starting current (relative to no inverter directly start the motor),2, long-term operation is more energy saving than frequency converter,3 、 stepless speed regulation can be carried out, vector control, V/F control, etc.4, the use of frequency converter communication function, the upper functions of real-time monitoring motor operation (such as current, speed, etc.)5, other.
Mainly for AC motor speed regulation, but also is a smooth stepless speed regulation. You can also implement some specific controls.
Through the frequency converter, the motor can be adjusted speed, so as to obtain the speed required by itself, and also can reduce the motor running current and save energy and reduce consumption.
Frequency converter integrates high voltage, high power transistor technology and electronic control technology, and has been widely used. The role of frequency converter is to change the frequency and amplitude of AC motor power supply, thus changing the period of its moving magnetic field, to achieve the purpose of smooth control of motor speed. The inverter speed control, makes the complex simple, most of the original work can only be done by a DC motor instead of frequency converter + AC squirrel cage induction motor, reduce the volume, reduce the maintenance rate, to a new stage of development of the transmission technology
