Browsing by Author "Haji Ali"

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    DSP Based fuzzy logic Speed Control of Permanent Magnet Synchronous Motor
    (Addis Ababa University, 2017-12) Haji Ali; Mengesha, Mamo (PhD)
    In this thesis works, fuzzy logic controller is designed for PMSM in order to control the desired reference speed with robustness. Proportional, Integral (PI) controllers are also designed for direct and quadrature components of the current in order to control the flux and torque. The performance of the proposed fuzzy logic controller (FLC) for SMPMSM drive has to be simulated in MATLAB/SIMULINK environment. The FLC operation has been verified by simulation on MATLAB/SIMULINK and the open loop experimental investigation is implemented using Texas Instrument, Piccolo TMS320F28035 control card on general purpose PMSM. From performance comparison simulation results of sudden load change and step change in speed reference, overshoot is improved from 3.5% to 1% and 5% to 3% respectively using proposed FL controller. Using FL speed controller maximum steady state error of 0.04 rad/s at time of 0.1 sec has been achieved. These demonstrate that the performance of proposed controller is better than that of convectional PI controller.