KY900E Series V/F Control Air Compressor Dedicated Variable Frequency Drive

V/F Control Air Compressor Dedicated Drive with Variable Frequency Drive is a specialized drive device for air compressors that combines V/F control technology and variable frequency drive technology. It can adjust the motor speed according to actual needs, achieving energy-saving, efficient, and stable operation.

Voltage/Frequency Control is the most fundamental control method for frequency converters, which adjusts the ratio of output voltage to frequency (V/F curve) to control the motor speed.

• Simple and reliable: The control logic is simple, suitable for situations where speed regulation accuracy is not required.
• Lower cost: Compared to vector control or direct torque control, V/F control frequency converters are more affordable in price.
• Widely applicable: Suitable for constant torque or square torque loads such as fans, water pumps, air compressors, etc.

Based on the operating characteristics of air compressors, V/F control dedicated variable frequency drives typically have the following functions:

• Constant pressure gas supply control: Real time monitoring of compressed air pressure through pressure sensors, automatic adjustment of motor speed, and maintenance of pressure stability.
• Energy saving operation: Adjust the motor speed according to actual gas demand to avoid running the motor at rated speed and reduce energy consumption.
• Soft start/soft stop: reduces the impact of starting current and extends the life of motors and equipment.
• Multi speed control: supports multi speed operation under different pressure or flow requirements.
• Protection function: overload, overvoltage, undervoltage, overcurrent, overheating and other protections to ensure the safe operation of the equipment.

• Significant energy-saving effect: Air compressors are usually designed according to maximum demand, and in actual operation, they are mostly in a non full load state. The V/F controlled variable frequency drive can adjust the motor speed according to actual pressure requirements, avoiding frequent loading and unloading and reducing energy waste.
• Extend equipment lifespan: Soft start and soft stop functions reduce mechanical impact, lower equipment wear, and extend the service life of compressors and motors.
• Improve system stability: Through pressure closed-loop control, the output pressure fluctuation is small, the gas supply quality is stable, and the production efficiency is improved.
• Reduce noise: Variable frequency drive reduces the motor speed, reduces mechanical vibration and noise, and improves the working environment.
• Simplified maintenance: Reduce frequent start stop of equipment, lower maintenance costs and failure rates.