Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/13675
Title: Torque pulsations minimization in PM synchronous motor drive
Authors: QIAN WEIZHE
Keywords: Permanent magnet synchronous motor, torque ripple, iterative learning control, torque control, torque estimator, variable structure control
Issue Date: 22-Mar-2004
Source: QIAN WEIZHE (2004-03-22). Torque pulsations minimization in PM synchronous motor drive. ScholarBank@NUS Repository.
Abstract: PM synchronous motor (PMSM) drives are widely used for high-performance servo applications where torque smoothness is an essential requirement. However, parasitic torque pulsations do exist in PMSM drive. A consequence of these torque ripples is speed oscillations that deteriorate the drive performance at low speeds. In this thesis, learning variable structure control (LVSC) and frequency-domain iterative learning control (FILC) methods are proposed to reduce these torque ripples. As the pulsating torque is periodic in nature, and given the motor parameter uncertainties and non-linearities, learning control is an excellent choice to achieve pulsating torque minimization. Simulation and experimental verifications of the proposed schemes are carried out, and the test results obtained demonstrate the effectiveness of the proposed control schemes in minimizing these torque pulsations.
URI: http://scholarbank.nus.edu.sg/handle/10635/13675
Appears in Collections:Master's Theses (Open)

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