Prospect of Intelligent Control of Farm Animal Husbandry Fan

Fan EC Motor Permanent Magnet Synchronous Motor Selection Focus Part Fourteen(2) ---Prospect of Intelligent Control of Farm Animal Husbandry Fan

Animal husbandry fan is the main body of harmful substances, oxygen content control and temperature and humidity balance in the breeding house. Based on our understanding of EC motor, what changes and improvements will be made in the field control logic and strategy of animal husbandry fan when the animal husbandry fan is generally matched with EC motor? How will the automation, unmanned and wisdom of the breeding house be improved?

Harmful substances, oxygen content, temperature and humidity in the breeding house change with the changes of animal growth stage, time and season. When the above-mentioned conditions change, the conventional animal husbandry fan will shut down through the large-sized fan, and the small-sized fan will adjust the pressure and air exchange rate in the breeding house at full speed or speed. Regardless of the size of the fan, the noise of the fan running at full speed is the largest, and the energy consumption of the fan running at full speed is the largest. since the conventional fan does not support speed control, it is unable to adjust the air volume and pressure of the fan according to the changes of the breeding site conditions, so this is a passive environmental control strategy.

As we mentioned earlier, "EC motor is a high-performance fan power system with permanent magnet synchronous motor +FOC vector controller, which designs and optimizes the structure, performance and power of the motor system according to the application characteristics of the fan." The system can control the fan at each end. The wind pressure and air volume of the animal husbandry fan will change with the changes of harmful substances, oxygen content, temperature and humidity in the breeding house. According to the information input by the temperature and humidity, ammonia gas and carbon dioxide sensors, the upper system adjusts the air volume and air intake area of the fan, from the original "passive control of environmental control in the breeding site" to "environmental construction in the breeding site".

"The noise of the fan is proportional to the rotating speed of the fan", "The power of the fan is proportional to the third power of the rotating speed ratio". When the animal husbandry fan is matched with the EC motor, the running noise and running energy consumption of the fan will be greatly reduced, the living environment of animals will be obviously improved, a good living environment will promote the growth speed of animals, and the breeding enterprises will reap good returns of feed and meat.

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