What are the characteristics of inverter air compressor?
When we buy air compressors, we often encounter variable frequency air compressors ( variable frequency air compressors=inverter air compressors). So what are the characteristics of variable frequency air compressors? The editor of JOY Machinery (Shanghai) Co., Ltd. specially summarizes it for you as follows:
1. The exhaust pressure is stable
Compared with the upper and lower limit switch control of power frequency air compressor operation, the air pressure stability is improved exponentially;
Because the variable frequency screw air compressor utilizes the stepless speed regulation characteristics of the frequency converter, the air compressor can be started smoothly through the controller or the PID regulator inside the frequency converter; It can be quickly adjusted and responded to the situation with large fluctuation of air consumption.
2. Start without impact current/ inrush current:
This kind of impact is not only to the power grid, but also to the whole mechanical system, which is greatly reduced;
Since the inverter itself covers the function of the soft starter, the starting current is larger than 1.2 times the rated current. Compared with the power frequency starting, which is generally more than 6 times the rated current, the starting impact is small.
3. Variable flow control:
The optimized control strategy can further improve the energy-saving effect;
When the air consumption is low, the air compressor can sleep automatically, which greatly reduces the loss of energy;
The power frequency driven air compressor can only work at one exhaust volume, and the variable frequency air compressor can work at a wide range of exhaust volume. The frequency converter adjusts the motor speed in real time according to the actual air consumption to control the exhaust volume.
4. Better voltage adaptability of AC power supply:
For the occasion of self-generating, the variable frequency drive can better show its advantages;
Due to the over-modulation technology adopted by the inverter, it can still output enough torque to drive the motor to work when the AC power supply voltage is slightly lower; when the voltage is slightly higher, it will not cause the output voltage to the motor to be too high.
5. Low noise
If the fan is also driven by variable frequency, the noise of the air compressor can be significantly reduced;
Most of the working conditions of the frequency conversion system work below the rated speed, the mechanical noise and wear of the main engine are reduced, and the maintenance and service life are prolonged.
Of course, when buying an air compressor, we have to consider it comprehensively. Therefore, if you want to buy a suitable air compressor, you can write or call JOY Machinery (Shanghai) Co., Ltd.
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