Permanent magnet synchronous air compressor, let s talk about what inverter to use?

Generally, it is the kind of three-phase inverter that is also possible, and you need to look at your own requirements.

Generally, three-phase ones are OK.

However, the synchronous hydraulic press certificate should be able to engage in these variant knowledge, so this can be close to some conditions, and under this condition, why should I follow.

All synchronous air compressors, let's talk about what inverter to use? Magnetic synchronous air compressor to talk about what kind of inverter to use, it depends on all aspects of your own, you should look at his hand instruction manual or consult. He is in after-sales customer service.

In this regard, I suggest that you can choose some high-power, there is no problem at all, and in general, you can choose some high-frequency, relatively speaking, you can achieve good results.

Swimming pool synchronous air compressor, let's talk about what inverter to use, Yongqi synchronous air compressor, he was very well matched by the manufacturer when he left the factory, in addition to his inverter, needless to say, this must be adjustable by frequency conversion.

In this regard, as long as you choose an inverter between 150 watts and 160 watts, you can achieve a good one relatively speaking, and the use effect is relatively good.

Regarding the inverter control of the permanent magnet motor, first of all, you must confirm that the inverter you have at hand can indeed control the permanent magnet motor, you can refer to the selection manual or manual. This kind of load needs special instructions when selecting. Now, after all, the inverter still controls the asynchronous motor more.

If the inverter can control the permanent magnet motor, the parameters need to be set according to the motor nameplate.

Permanent magnet synchronous motors generally cannot be driven by inverters, the driving principle is different, mainly using special drives, and there are many brands, such as domestic Inovance and Sanjing.

What kind of inverter to use? The main consideration is the power of the inverter, as well as the requirements of use, to ensure that the power of the inverter is greater than or equal to the motor power.

For permanent magnet synchronous air compressors, the inverters they use are all domestic inverters.

Permanent magnet synchronous air compressor, let's talk about what deformer to use, what kind of transmission to use, what kind of requirements to use.

Hello In the screw air compressor controlled by frequency conversion, it can be divided into two types: ordinary frequency conversion and permanent magnet frequency conversion. The same is controlled by an inverter, so what is the difference between the two? Which is the higher or lower energy saving effect?

The same frequency converter is used, but the permanent magnet frequency conversion motor does not need reactive power excitation current, which can significantly improve the power factor (can reach 1, and even capacitance), reduce the stator current and stator resistance loss, and there is no rotor copper loss during stable operation, and then the fan can be reduced (the small capacity motor can even remove the fan) and the corresponding wind friction loss, and the efficiency can be increased by 2 8 percentage points compared with the ordinary frequency conversion motor of the same specification. Moreover, the permanent magnet variable frequency motor is made of rare earth permanent magnet materials, and the ordinary variable frequency motor is an ordinary three-phase asynchronous motor, and the permanent magnet variable frequency motor can maintain high efficiency and power factor in the range of 25% 120% rated load, so that the energy-saving effect is more significant during light load operation, and the work efficiency is high, which is 5%-7% higher than the ordinary variable frequency motor of the same power on average, and is more energy-saving than the ordinary variable frequency motor. 1. The life span is different.

From the perspective of the service life of the machine, the permanent magnet variable frequency screw air compressor is better. Due to the use of variable frequency drive, therefore, the air compressor is used in the start of the "soft start", which has a certain protective effect on the motor and reduces the possibility of burning the motor. 2. The parts are different.

From the perspective of parts, the permanent magnet variable frequency air compressor adopts a high-efficiency rare earth permanent magnet motor and a frequency converter. These two components are of great help to the energy saving of the air compressor. 3. The maintenance cost is different.

From the perspective of maintenance costs, permanent magnet motors do not need bearings and grease, eliminating failure points and reducing maintenance costs. In addition, the permanent magnet inverter motor will automatically adjust the frequency to change the motor power according to the change of the user's equipment, which well matches the output power of the motor, and its working efficiency is still maintained at a high level in the case of light load or overload. Maintenance Method:

1. Check the oil level, exhaust temperature and exhaust pressure every day, and check whether there is any abnormal sound; 2. Open the separator blowdown valve to discharge condensate before starting the machine every week, check whether there is leakage everywhere, check the safety valve, and check the wear of the belt (visual inspection); 3. Regularly inspect the air intake control valve, minimum pressure valve, electric control box connection line terminal, safety valve, and cooling fan; 4. Clean and clean the cooler regularly and test the reliability of the safety valve; 5. Regularly replace the oil filter element, oil separator filter element, air intake filter element and lubricating oil.

Permanent magnet variable frequency air compressor in:

1. The rated efficiency of the motor reaches 94-97%, which is 7% less than that of the general inverter air compressor;

2. On the problem of motor efficiency decreasing due to the decrease of motor efficiency with the decrease of motor speed, Sazhen permanent magnet variable frequency air compressor remains unchanged, and the general variable frequency air compressor decreases by 5-10%, so it saves 5-10%;

3. Integrated shaft efficiency: 100% of the permanent magnet variable frequency air compressor, only 97% of the coupling used in the general variable frequency air compressor, so the permanent magnet variable frequency air compressor saves power * 3% per hour (than the coupling);

4. Frequency conversion range: permanent magnet frequency conversion air compressor is 25-100%, and general frequency conversion air compressor is 40-100%, so when the air consumption is less than 40%, general frequency conversion will lose meaning. Finally, to sum up, the Sazhen permanent magnet variable frequency air compressor saves an average of 17% compared with the general variable frequency air compressor.

【Guangzhou Beiyue Machinery】To answer for you: the frequency conversion air compressor is mainly to control the current fluctuation, frequency conversion speed regulation and energy saving, through the installation of frequency converter between the power grid and the motor to change the voltage and motor frequency, to achieve motor speed regulation. The speed of the air compressor is controlled by the inverter to adjust the energy to meet the needs of light-load operation, so that the exhaust volume matches the air consumption.

It has been proved in practice that the use of frequency conversion speed regulation method can improve the work efficiency of the air compressor under light load operation, reduce the energy consumption of the air compressor, and create better economic benefits for the enterprise. The system controls the output pressure, connects the feedback signal to the inverter, and then compares it with the given signal, adjusts it by the PID, sends the comprehensive signal to the input terminal, and adjusts the speed and power of the motor according to the pressure change.

The permanent magnet motor of Mufeng permanent magnet variable frequency screw air compressor produces the maximum gas volume under the minimum energy consumption; When the load factor of the permanent magnet variable frequency screw air compressor is less than 20%, the operating efficiency of up to 95% is always maintained to achieve first-class energy efficiency. Compared with the power frequency screw air compressor, it is more energy-saving; Compared with ordinary inverter air compressor, energy saving is 10%. Moreover, the Mufeng air compressor adopts centrifugal fan, double frequency conversion, more intelligent and more power-saving.

The adjustable range of permanent magnet variable frequency air compressor is larger than that of variable frequency air compressor, and it can be adjusted from 0 to 100%. The permanent magnet inverter air compressor adopts a coaxial integrated design, and the mechanical loss is also a little smaller than that of the elastic coupling transmission of the inverter unit.

Air compressor is the basic product of industrial modernization, and it is often said that electrical and automation has the meaning of full pneumatic; The air compressor is to provide air source power, is the core equipment of the pneumatic system electromechanical air source device in the main body, it is the original mover (usually the motor) of the mechanical energy into gas pressure energy of the device, is the compressed air pressure generation device.

The difference between the variable frequency permanent magnet air compressor and the ordinary screw air compressor is:

Permanent magnet variable frequency synchronous motor and ordinary three-phase asynchronous motor. The drive is not the same.