Browsing by Author "Netsanet Abate"

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    Sliding Mode Based Maximum Torque per Ampere and wide speed range Control for Interior Permanent Magnet Synchronous Motor Drive
    (Addis Ababa University, 2025-06) Netsanet Abate; Mengesha Mamo (PhD)
    This thesis presented an Interior Permanent Magnet Synchronous Motor (IPMSM) drive system with a sliding mode-based Maximum Torque per Ampere (MTPA) and wide-speed range (field weakening) control. It developed and analysed an IPMSM motor dynamic model, empowering motor control in both constant-torque (constant flux) and wide-speed range (constant-voltage-ampere) modes. The control performance of the IPMSM varied due to temperature changes and magnetic saturation, so a sliding mode-based MTPA controller with a First-Order Sliding Mode Controller (SMC) was used to address model uncertainty and external disturbances. The scheme eliminated steady-state error using an Integral Sliding Mode Controller (I_SMC). MATLAB simulations were performed to validate the proposed controller