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.
Characteristic- 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.
Technical characteristicsBased 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.
Application advantages- 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.
Application scenarios and selection suggestions- Application scenarios:
V/F controlled variable frequency drives are suitable for small and
medium-sized air compressors, especially in applications where
speed regulation accuracy is not high and energy saving is the main
goal, such as factory gas supply systems, textiles, chemicals, food
processing and other industries. - Selection suggestion:
Select the appropriate frequency converter based on the power,
voltage level, and operating environment of the air compressor.
Consider the protection level of the frequency converter (such as
IP20, IP54, etc.) to adapt to different installation environments.
Choose a frequency converter with built-in PID control function to
facilitate constant pressure gas supply control.
Pay attention to the overload capacity and heat dissipation
performance of the frequency converter to ensure long-term stable
operation.
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