Speed Controller For Single Phase AC Induction Motor Using PWM

Mohamad Rizal, Mohamad Maskum (2005) Speed Controller For Single Phase AC Induction Motor Using PWM. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This project revealed a new kind of method toward controlling the: speed of single phase ac motor automatically; the new method is calling the Pulse Width Modulation (PWM). A single-phase ac induction motor controller is presented and the PWM frequency control part of the operation is verified experimentally. The a1pplication for this ac motor controller is existing single-phase ac induction motors less than ~ hp. The ac motor controller is a VFD (variable frequency drive). The IGBT (Insulated Gate Bipolar Transistor) are configured in a full H-bridge with unipolar voltage switching. A variable frequency output waveform is generated by the inverter to run a motor at variable speeds that is directly proportional to this range of frequencies. In this report, it will state the theoretical result that will be obtained. Despite of that, it will also give the theoretical result through a simulation analysis process through a software program. In fact, this will also explain the operation of the alternating current motor based on the theoretical method, which also include the component that was use to build the hardware.

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