Inverter is an electrical equipment which converts the power frequency to any frequency and any voltage AC power supply. The use of the inverter is to adjust the motor power, to achieve the motor speed operation. Inverter used in crane and hoist has a good preformance.
The main components of the inverter includes two parts: the control circuit and the main circuit, and the main circuit also includes rectifiers and inverter and other components.
The working principle of the inverter is to control the main circuit through the control circuit, the rectifier in the main circuit transforms the alternating current into direct current, the DC intermediate circuit will smooth the smoothing of the direct current, and the inverter will convert the direct current to the alternating current of the required frequency and voltage , part of the inverter will be added in the circuit CPU and other components, to carry out the necessary torque operation.
The birth of the inverter from the AC motor on the stepless speed regulation needs, with the thyristor, electrostatic induction transistor, high voltage insulated gate bipolar thyristor and other components, electrical technology has changed with each passing day, the inverter speed technology. With the development of special pulse width modulation variable frequency inverter control technology is to let the inverter boarded a new level. Frequency inverters are widely used in lifting machinery for lifting, pitching, luffing, wheelbarrow, gyration.
Frequency converter power frequency is generally 50Hz or 60Hz, whether it is in the field of home or production, power frequency power and voltage are constant. Power to the power supply motor in the speed may cause power down, and through the adjustment of the inverter, the motor speed can be reduced when the power loss.
A variety of frequency converter, according to the different uses of the inverter can be divided into general frequency converter, high performance dedicated inverter, high frequency inverter, single-phase inverter and three-phase inverter, etc., according to the principle of inverter work can be divided into V / f control inverter, slip frequency control inverter and vector control inverter and so on.
If you need crane,hoist and crane spare parts,please contact us freely.
