What requirements does the system need to meet after the air compressor frequency conversion transformation

What requirements does the system need to meet after the air compressor frequency conversion transformation

The application optimization analysis of the frequency conversion energy-saving transformation of the frequency conversion air compressor, the energy-saving transformation design requires the problems existing in the original working conditions and the production process requirements. After the air compressor frequency conversion transformation, the system should meet the following requirements:

　　 1. According to the industrial control requirements of the air compressor, the system should ensure that the motor has a constant torque running characteristic.

　　 2. The motor frequency conversion operation state keeps the outlet pressure of the gas storage tank stable, and the pressure fluctuation range cannot exceed ±0.2bar.

　　 3. The system should have two sets of control loops: variable frequency and industrial frequency.

　　 4. In order to prevent non-sine waves from interfering with the air compressor controller, effective measures to suppress electromagnetic interference should be provided at the output of the inverter.

　　 5. In the case of low electrical consumption, when the inverter is running at low frequency, ensure that the temperature of the motor winding and the noise of the motor do not exceed the allowable range.

　　6. Considering the system's future expansion, the inverter meets the requirements of future industrial control expansion.

　　7. The input reactor is added to the upper end of the inverter to effectively restrain the inverter's interference to the power grid.