Drives for Refrigerators

For refrigeration application, drives are generally used to control compressor motors. It is crucial to drive the motors in an energy efficient manner to produce competent refrigerators that possess certifications and comply to market needs. Our drive is that exact one that can be used to produce energy efficient compressors. It is compatible with both Brushless DC and Permanent Magnet Synchronous Motors. To achieve the efficiency, the drive imparts variable speed control and allows compressor to maintain a steady temperature in the refrigerator. By using the speed control, the compressor has the benefits of being unaffected by grid voltage fluctuations and having prolonged life. Our drive replaces the conventional on/off control with Field-Oriented Control (FOC) algorithm. FOC has advantages like reduction of acoustic noise generated from compressor, further improvement of energy efficiency and enhancement of motor life.