1. The motor frequency conversion operation state to keep the gas storage tank outlet pressure stable, the pressure fluctuation range should not exceed ±0.2bar.
2. The system should have two sets of control loops, frequency conversion and power frequency.
3. According to the industrial control requirements of the air compressor, the system should ensure that the motor has constant torque operation characteristics.
4. In order to prevent non-sine wave interference with the air compressor controller, the output end of the inverter should have effective measures to suppress electromagnetic interference.
5. In the case of small electricity consumption, the frequency converter is operated at low frequency to ensure that the motor winding temperature and motor noise do not exceed the allowable range.
6. Considering the future expansion of the system, the inverter meets the requirements of future industrial control expansion.
7. The input reactor is installed at the upper end of the inverter to effectively inhibit the interference of the inverter to the power grid.