What is the principle of electromagnetic governor?

Electromagnetic governor is a controller used to control the speed of motor, which can control the speed of motor and thus control the running speed of mechanical equipment. Its principle is: by changing the power supply voltage of the motor, the rotation speed of the motor is changed. Electromagnetic governor usually consists of controller, frequency converter, power supply and motor. The controller changes the rotation speed of the motor by controlling the output frequency of the inverter, which changes the rotation speed of the motor by changing the frequency of the power supply, which converts the output frequency of the inverter into voltage, and the motor converts the voltage into success rate, thus changing the running speed of mechanical equipment.