Why does permanent magnet air compressor develop so rapidly?

In terms of the type of air compressor, the occupancy rate of the power frequency screw air compressor was relatively good before, but with the continuous updating of the air compressor technology, permanent magnet variable frequency air compressor and permanent magnet variable frequency two-stage compression air compressor have also entered people's vision more. So, what factors can make the permanent magnet variable frequency air compressor rise rapidly? We can analyze from the following points, and everyone will understand.

1、 Variable flow control

1.1. The power frequency screw air compressor can only have a constant exhaust volume, while the variable frequency air compressor can output a relatively wide exhaust volume due to changes in working air consumption. The frequency converter adjusts the rotational speed of the motor in real time according to the actual air consumption, and controls the exhaust volume.

1.2. When the gas usage of the permanent magnet variable frequency screw air compressor is low, the air compressor can automatically sleep, greatly reducing energy loss.

1.3. The optimized control strategy of permanent magnet variable frequency screw air compressor can further improve the energy-saving effect.

2、 Better voltage adaptability of AC power supply

2.1. Due to the overmodulation technology adopted by the frequency converter, sufficient torque can be output even when the AC power supply voltage is slightly low, and the voltage of the output motor will not become high when the driving motor operates at a slightly high voltage.

2.2. In the case of self generating electricity, variable frequency drive can display its advantages.

2.3. According to the characteristics of the motor (the variable frequency air compressor is all operating under the rated voltage in the energy-saving state), the efficiency is obvious for sites with low grid voltage.

3、 Low noise

3.1. Most permanent magnet variable frequency screw air compressors are used at speeds lower than the rated speed, resulting in reduced mechanical noise and wear of the host machine, extending maintenance and service life.

3.2. If the fan is also driven by frequency conversion, it can significantly reduce the noise of the permanent magnet frequency conversion screw air compressor during operation.

4、 Barometric stability

4.1. The permanent magnet variable frequency screw air compressor utilizes the stepless speed regulation feature of the frequency converter. Through the controller and the internal PID regulator of the frequency converter, it can be slowly started, and can quickly adjust the response when the air volume changes greatly.

4.2. Compared to the upper and lower limit switch control of operating frequency operation, the air pressure stability is improved to an exponential level.

5、 Start without impact

5.1. The inverter itself includes the function of a soft starter, with a maximum starting current of less than 1.2 times the rated current. Compared to starting at a working frequency that is generally more than 6 times the rated current, the starting impact is small.

5.2. This impact not only on the power grid, but also greatly reduces the impact on the entire mechanical system.

Based on the above analysis, there is a significant difference between permanent magnet variable frequency air compressors and power frequency air compressors. The energy-saving and efficiency advantages of permanent magnet variable frequency air compressors are key to winning the market. Therefore, it is foreseeable that permanent magnet variable frequency air compressors will become the choice of more enterprises.

JOY MACHINERY always adheres to the corporate vision of "building a leading brand of oil-free air compressors in the world", and hopes to provide high-quality, clean and safe air for food, beverage and other production enterprises on the road of oil-free air compressor research and development, production and sales. Source protection, and also contribute a little bit to people's health and safety.

JOY MACHINERY oil-free air compressor series is widely used in the food and beverage processing industry due to its clean air source and continuous and stable gas transmission. If you have any needs, please contact us! JOY Machinery (Shanghai) Co., Ltd. has a professional design team with rich experience and welcomes customization. Diversified products can meet most applications and meet your one-stop shopping needs. The air compressor series includes power frequency screw air compressors, variable frequency screw air compressors, permanent magnet variable frequency screw air compressors, two-stage compression screw air compressors, integrated screw air compressors, laser cutting air compressors, medium and high pressure air compressors. Air compressors, oil-free water-lubricated screw air compressors (special oil-free screw air compressors for the medical industry), diesel-moving screw air compressors, electric-moving screw air compressors and other products.

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