What is the main application of frequency conversion control of FRP fan!

What is the main application of frequency conversion control of FRP fan! The following can be detailed according to different situations!

The power of the electric motor is selected according to the rated load in the maximum load period, and most of the electric motor can not operate with full load when working. The electric motor operates at full voltage and full speed with very small load, and will also operate with no load for a lot of time. From the motor design and operating characteristics, it can be seen that the electric motor only operates with full load, which is the highest efficiency and the best power factor COS ￠ Electricity saving principle Any production machinery that uses AC induction electric idea as electric drive mode. It is reduced under light load, or even below 0.3 under no load, resulting in a lot of unnecessary power loss.

FRP fan is a universal machine with large application and wide application. The power consumption of the motor supporting the fan accounts for about 20% of the total power generation of the country. Therefore, it is of great significance to promote energy saving technology on blower, induced draft fan and other fan equipment, replace the backward damper or valve current carrying regulation mode, keep the fan in a scientific and economic operation state, and improve the comprehensive economic and social benefits of enterprises.

Its adjustment mode is controlled by baffle, damper, return flow, start stop motor, etc. The traditional fan flow is designed based on the maximum air volume demand. Closed loop control cannot be formed, and the concept of power saving is not considered. The electrical control adopts direct or Y - △ starting, which cannot have the function of soft starting. Its main problems are large mechanical impact, short service life of the transmission system, large shock and noise, large power capacity required, low power factor, etc. According to the principle of fluid mechanics, the fan air volume is related to the speed and motor power. When the air volume decreases and the fan speed decreases, the input power of the electric actuator decreases rapidly. For example, when the air volume is reduced to 80%, the rotating speed is also reduced to 80%, and the shaft power is reduced to 51% of the rated power. If the air volume is reduced to 50%, the shaft power will be reduced to 20% of the rated power. Variable frequency speed regulation is used to change the input frequency of the wind turbine electric idea so as to change the speed of the electric idea and fan. To achieve the purpose of regulating the air flow, it is the best measure not only to meet the requirements of production process changes, but also to save electric energy.

Therefore, to sum up the above information, it is more clear about the application of frequency conversion control of FRP fan!