Slip frequency controlled inverter-fed single-phase induction motors

Single-phase induction motors are widely used in many applications. Improvements in its performance means a great saving in electrical energy consumption. An inverter-fed variable frequency motor is a typical example of such improvement. In this regard, the paper presents a comprehensive analysis of the performance of the single-phase induction motor when it is fed with an inverter. Dynamic models and analysis of the motor behavior during transient and steady state phases are presented. A speed controller based on slip frequency technique is proposed. The controlled motor exhibited better performance at both staring and steady state.