Winding machine manufacturers tell you the way to control automatic winding machine

The working principle of AC inverter: Inverter technology is a technology to change the working frequency of AC asynchronous motor by changing the working frequency through inverter. The inverter first converts from AC to DC and then from inverter to DC to AC to control the speed of the AC motor.

A series of loop winders with automatic protection devices control the inverter by controlling the analog voltage input to the inverter, thus controlling the frequency of the inverter output power, so that the speed current motor of the transmission follows the change of the output power frequency. Variety.

The speed of the three-phase asynchronous motor is determined by the point frequency, the number of poles of the motor and the slip rate. The torque of an asynchronous motor is produced by the interaction between the magnetic flux of the motor and the current flowing through the rotor. At a constant frequency, if the voltage is constant and only the frequency decreases, the flux is too large and the magnetic circuit is saturated. The motor will be burned up. Therefore, the frequency and voltage should be changed proportionally, i.e., the frequency of the inverter should be controlled while changing the frequency in order to keep the magnetic flux of the motor constant to avoid the occurrence of weak magnetism and magnetic saturation. As the general inverter generally uses V / f control, i.e. variable voltage frequency mode speed control, changing frequency and voltage is the Z best motor control method.

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