Sliding Mode Based Maximum Torque per Ampere and wide speed range Control for Interior Permanent Magnet Synchronous Motor Drive
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Date
2025-06
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Addis Ababa University
Abstract
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
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Keywords
Interior permanent magnet Synchronous Motor (IPMSM), Maximum Torque Per Ampere (MTPA), Wide speed range control, Field Weakening (FW), Sliding Mode Controller (SMC).