What are the advantages of permanent magnet variable frequency air compressors?

2021-6.28

There are many types of air compressors, including oil-free screw compressors, straight screw compressors, high pressure screw compressors, low pressure screw compressors, variable frequency screw compressors, permanent magnet variable frequency compressors, mobile screw compressors, single-axis compressors, etc. Many people talk about permanent magnet inverter compressors, and I am thinking about energy saving, but in the world of inverter compressors, the number of energy-saving compressors is more than that of permanent magnet inverter compressors. So, what kind of permanent magnet inverter compressor that you don't know is like?

1. Magnet frequency conversion compressor applies the stepless speed regulation feature of the frequency converter, and can start slowly through the controller and the PID regulator inside the frequency converter.

2. Permanent magnet inverter compressor has no starting shock

1. The inverter itself summarizes the function of the soft starter, so the starting current is within 1.2 times of the rated current, and the starting impact of commercial frequency is generally less than 6 times of the rated current.

2. The impact not only on the power grid, but also on the overall mechanical system is greatly reduced.

3. Variable flow control of permanent magnet inverter compressor

1. The compressor driven by the commercial frequency can only operate with one displacement. The permanent magnet inverter compressor can operate with a relatively wide displacement. The inverter adjusts the motor speed in real time and controls the exhaust according to the actual air volume. the amount

2. When the air volume is low, the permanent magnet inverter compressor is automatically put to sleep, which greatly reduces energy consumption

3. Optimizing the control strategy can further improve the energy-saving effect.

Fourth, the voltage compliance of the AC power supply of the permanent magnet inverter compressor is better

1. According to the over-modulation technology adopted by the inverter, even if the voltage of the AC power supply is slightly lower, it can output enough torque, and even if the voltage that can drive the motor is slightly higher, the voltage output to the motor will not become higher.

2. Under the condition of self-generation, inverter drive can further show its advantages.

3. According to the characteristics of the motor VF (the inverter compressor works below the rated voltage in an energy-saving state), the effect is significant in the field with low grid voltage. Usually, after purchasing a compressor, look for a certain center and use it immediately after piping, without making any prior plans. Surprisingly,

This indiscreet result will lead to future compressor problems, difficult maintenance, and poor air quality.

5. Low noise of permanent magnet variable frequency compressor

1. Most of the casing of the frequency conversion system works at rated speed, the noise and wear of the main engine are reduced, maintenance and life are prolonged.

2. The fan is driven by frequency conversion, which can significantly reduce the noise of the compressor when it is working.

The above are the advantages of permanent magnet inverter compressors that you don't know. The difference between inverter and commercial frequency is obvious. The energy-saving advantages and efficiency advantages of permanent magnet inverter compressors are necessary to win the market.