Abstract:
In this project report, the design and implementation of a modified compact frequency drive that
controls two motors at independent properties scheme based on sinusoidal pulse width modulation
(PWM) technique for a single-phase induction motor. Our main aim is to design, implement and
program a circuit drive that controls two motors each with independent commands from the
Programmable Logic Circuit (PLC) to alter the speed, direction and starting time for each motor
unlike the previous designs which control a single motor with some characteristics.
This report is intended to provide a basic understanding about VFD terms, VFD operations, Power
Factor improvement, simulation model of our design and it’s going to be simulated using Proteus
software. This variable frequency drive technique to be implemented is mainly focused in industrial
applications, lifts so as to provide accurate operation of motors with improved power factor to
minimize power usage and maintenance costs.
