Most commonly used industrial and domestic appliances are single phase induction motors (SPIMs). More research is going on to improve further on their drives. Because the SPIMs are readily available, various speed control techniques are being proposed. This paper looks into the use of TRIAC to control the speed of single phase induction motor. This method reduces the periodic nature of the input voltage to the motor and increases the motor efficiency. Especially for a single phase induction motors this method provides an easy speed control and most applicable for variable loads as in pump drives, airconditioners, refrigerators and the like.
No. of Downloads :