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Please use this identifier to cite or link to this item: http://hdl.handle.net/10651/52856

Title: Comparative Analysis between Three Level NPC Inverter and Dual Inverter Motor Drives for SPM Synchronous Machines
Author(s): Mudalige, Anuradha Sampath
Advisor: Formentini, Andrea
Rovere, Luca
Keywords: SPMSM
three level NPC
dual-inverter motor drive
thermal modelling
Issue date: Aug-2019
Series/Report no.: Máster Erasmus Mundus en Transporte Sostenible y Sistemas Eléctricos de Potencia
Format extent: 122
Abstract: Permanent Magnet Synchronous Machines (PMSM) have gained increasing interest in industrial applications. Selection of the best motor drive topology for an application is a decision that involves consideration of various factors. In this research, a comprehensive comparative analysis is conducted between a Three Level Neutral Point Clamped (NPC) inverter based motor drive and a dual inverter based motor drive for Surface Permanent Magnet Synchronous Machines (SPMSM). Control systems and modulation schemes for the two drive topologies are designed considering a SPMSM available within the facilities of the Power Electronics, Machines and Control Group (PEMC) of the University of Nottingham (UoN). Comparative analysis is conducted via mathematical modelling of the drive topologies and through a series of simulations in Matlab/Simulink for control implementations in conjunction with PLECS Blockset for thermal modelling of power electronic elements. Finally, feasibility of the two drive control philosophies are experimented by coding the controllers in C and implementing them in a laboratory experimental setup.
Description: Many desirable features offered by Permanent Magnet Synchronous Machine (PMSM)s such as high torque density and better efficiency of the machine design, have made them a popular choice in industrial applications. Overall performance of the motor drive application, however, not only depends on the electrical machine, but also on associated control system and most importantly on the motor drive topology that feeds the machine. Therefore, selection of the best motor drive topology for a given industrial application involving a PMSM is an important engineering decision to be made. In this research, performance of two motor drive topologies are comparatively assessed for their suitability in PMSM applications, exclusively focusing on Surface Permanent Magnet Synchronous Machine (SPMSM)s that find widespread industrial applications.
URI: http://hdl.handle.net/10651/52856
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