PERFORMANCE ANALYSIS OF INDUCTION MOTOR DRIVE USING DIFFERENT CONTROL TECHNIQUES

Abstract

In general speed control is essential in drive system. This involves variable frequency and voltage. Many pulse width modulation techniques are used for obtaining variable frequency and voltage from an inverter. The space vector pulse width modulation method with proportional integral control of induction motor drive is widely used in high performance drive system. It is due to its characteristics like good power factor and high efficiency. In this dissertation the voltage source inverter type space vector pulse width modulation using proportional integral control, ANN control and ANFIS control model design and implementation has been done through MATLAB/Simulink software for the speed control of induction motor. The performance of speed is increased by PI controller, ANN controller and ANFIS controller. The simulation results provide a smooth speed response and high performance under various dynamic operations. Space vector pulse width modulation (SVPWM) is more efficient among all other pulse width modulation (PWM) techniques due to its key characteristics like better DC voltage utilization, switching losses reduction and easiness in digital implementation. The complete mathematical model of the system is described and simulated in MATLAB/Simulink.