Everyone is familiar with the permanent magnet frequency conversion motor now, right? It has been appearing very frequently around us now. The main reason is that the permanent magnet frequency conversion motor is an energy-saving motor, energy saving is also a concept that our country has always advocated. Since it is said to be energy saving, why is the permanent magnet inverter motor so energy saving? Today we will talk about the reasons for its energy saving.

The energy-saving reasons of permanent magnet inverter-fed motor are as follows:

1. Air pressure stability: because the permanent magnet inverter motor makes use of the stepless speed regulation characteristic of the frequency converter, through the controller or the PID regulator in the frequency converter, it can realize the fast regulation control to the pressure, compared with the upper and lower limit switch control of power frequency operation, the air pressure stability is improved exponentially; 

2, start-up without impact: because the inverter itself is a soft-start device, start-up current is controlled within the rated current, compared with the power frequency starting current which is 3 -7 times of the rated current, the starting impact is very small. This impact on the power grid and the entire mechanical system are greatly reduced; 

3, low noise, wear and tear: permanent magnet frequency conversion motor because of stable operation frequency is less than power frequency, mechanical noise reduction, less mechanical wear.

Source: internet (for study only, intrusion and deletion)