Abstract
This paper presents the performance comparison of a conventional proportional-integral (PI) controller with a fuzzy logic controller (FLC) based tuned PI controller incorporating an adaptive hysteresis current controller for an interior permanent magnet synchronous motor (IPMSM) drive. For the proposed drive two FLCs are used. One of these is a novel Sugeno type FLC, which is used to tune the PI controller. Thus, the limitations of traditional PI controllers are avoided and the performance of the drive system is improved. Another one is a Mamdani type FLC, which adapts the hysteresis band of the PWM current controller. This adaptation helps to minimize the developed torque ripple. The proposed drive is implemented using DSP board DS1104 for a laboratory 5 hp IPMSM. Comparative simulation and experimental results demonstrate better dynamic response in terms of torque and speed for the proposed drive at different operating conditions.
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