A Design and Construction of Speed Controlled Inverter for 1 Phase Induction Motor

Abstract

This paper presents the designing of an inverter for controlling a single-phase  induction-motor. The approach of the development exploits the concept that the change of switching frcquency to dropped voltage across motor can be used to control the flow rate of fluid. As the state variables to the rate of controlling, therefore, the use of micro-controller is adequate to handle the controlling. The test results show that the developed inverter has high performance at low switching-frequency which is applicable to improve efficiency of air-conditioner unit or pump motor.