T-DOF PI Controller Design for a Speed Control of Induction Motor

This paper presents design and implements the T-DOF PI controller design for a speed control of induction motor. The voltage source inverter type space vector pulse width modulation technique is used the drive system. This scheme leads to be able to adjust the speed of the motor by control the frequency and amplitude of the input voltage. The ratio of input stator voltage to frequency should be kept constant. The T-DOF PI controller design by root locus technique is also introduced to the system for regulates and tracking speed response. The experimental results in testing the 120 watt induction motor from no-load condition to rated condition show the effectiveness of the proposed control scheme.

Authors:

• Tianchai Suksri
• Satean Tunyasrirut

Keywords:

• PI controller
• root locus technique
• space vector pulse width modulation
• induction motor.

References:

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