KY900E Series Vector Control Air Compressor Dedicated Variable Frequency Drive
Vector Control Air Compressor Dedicated Variable Frequency Drive is a high-performance drive system designed specifically for air compressors. It combines vector control technology and variable frequency drive technology to achieve high-precision control of motors and meet the operational needs of air compressors under different working conditions.
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.
Core Technology
Vector control technology
Vector Control is an advanced motor control technology that achieves independent control of motor torque and flux by decomposing the stator current of the motor into torque and excitation components. Its core advantages include:
- High dynamic response: Quickly adjust motor speed and torque to adapt to load changes.
- High precision control: able to maintain stable operating performance under both low-speed and high-speed conditions.
- Significant energy-saving effect: By optimizing the operating efficiency of the motor, energy consumption is reduced.
Variable frequency drive technology
Variable frequency drives achieve smooth adjustment of motor speed by adjusting the power supply frequency of the motor. Combined with vector control, variable frequency drives can:
- Realize wide range speed regulation: meet the operation of air compressors under different pressure and flow requirements.
- Soft start/soft stop: reduces mechanical impact and extends equipment life.
- Multi motor collaborative control: supports the collaborative operation of multiple compressor units, optimizing system efficiency.
System Advantages
- Efficient and energy-saving
Dynamic speed regulation: Adjust the motor speed according to actual gas demand to avoid no-load operation at rated speed and reduce energy consumption.
Energy recovery: Some high-end variable frequency drives support energy recovery function, which feeds back braking energy to the grid, further improving system efficiency.
- Stable and reliable
Pressure stability: By precise speed control, the compressed air pressure is maintained stable, reducing the impact of pressure fluctuations on production.
Fault protection: Built in overload, overvoltage, undervoltage, overcurrent, overheating and other protection functions ensure the safe operation of the equipment.
- Reduce maintenance costs
Reduce mechanical wear: Soft start and soft stop functions reduce mechanical impact and lower equipment wear.
Extend equipment lifespan: Optimize motor operating efficiency, reduce equipment failure rates, and extend maintenance cycles.
Application
- Industrial manufacturing: In industrial production lines that require stable compressed air supply, such as automotive manufacturing, electronics manufacturing, food processing, etc.
- Energy: Precise control of compressors is achieved in scenarios such as natural gas compression and oil and gas transportation.
- Construction industry: providing stable compressed air for air conditioning systems, pneumatic tools, etc. in large buildings.
- Environmental Protection Engineering: In environmental protection projects such as sewage treatment and exhaust gas treatment, air compressors are driven for gas treatment.
Installation and commissioning precautions
- Installation: Ensure that the installation environment of the frequency converter is well ventilated, avoiding harsh environments such as high temperature, high humidity, and dust. Connect the wires correctly according to the instructions of the frequency converter, especially the laying of motor cables and control cables, to avoid interference.
- Debugging: Set the basic parameters of the frequency converter based on the motor parameters (such as motor rated power, rated voltage, rated frequency, etc.). Perform pressure closed-loop control debugging to ensure that the output pressure remains stable at the set value.
