Clean Energy Capability Portfolio | Empowering Consumers |
Permanent-Magnet Machines for Electric
Vehicles
Strong capabilities in designing and optimising various permanent-magnet ( PM ) machine geometries , and developing advanced control techniques to further improve electric vehicle performance . |
Competitive Advantage • Expertise in PM machine design and control
• One of the world ’ s first to develop mechanical sensorless control for an interior PM ( IPM ) machine , and a fractional-slot concentrated wound IPM machine
• Patented PM machine technologies with wide fluxweakening range – a requirement for traction drives in electric vehicles
• Developing advanced on-line parameter identification techniques
Impact • Electric machines with higher efficiency and better performance for EV-powertrain
• Motors with wider constant power operation for traction applications
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Capabilities and Facilities • Finite-element packages , including Maxwell 2D / 3D , Magsoft and ANSYS , with optimisation tools developed in-house
• Simulation platforms ( Matlab – Simulink , PSIM ), FPGA and DSP systems with high-performance signal acquisition , estimation and switch gate-drive interfaces
• Two and three-level inverters
• Several machine drive set-ups complete with shaft position sensors , torque sensors and highly dynamic loads
• Four-quadrant dynamometer for testing direct-drive wind generators
• High-speed (> 50,000 rpm ) PM machine test bed ( work-in-progress )
Our Collaborators |
Successful Applications • Sensorless control techniques from zero to full speed for PM motor drives
• World ’ s first experimental verification of fractionalslot concentrated wound stator with IPM rotor
• Development of PWM-based sensorless control and high-speed IPM machines
• Patented technologies of fractional-slot IPM machines
• Patent application – Novel multi-objective optimisation techniques for PM machines
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• Conry Tech
• CSIRO
• Wisconsin Electric Machines and Power Electronics ( WEMPEC )
More Information Associate Professor Rukmi Dutta
School of Electrical Engineering and Telecommunications
T : + 61 2 9385 7884
E : rukmi . dutta @ unsw . edu . au
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