Clean Energy Capability Portfolio | Empowering Consumers |
Removing the Need for Sensors in Permanent-
Magnet Synchronous
Machines
The sensorless control of permanent-magnet machines over their full speed range , including zero speed . |
Competitive Advantage • Several techniques that are leading contributors to the sensorless control of permanent-magnet synchronous motors ( PMSM )
• Recently perfected a new current derivative-based sensorless-control technique for PMSM
• The first to develop a fast , online technique for estimating all electrical parameters of PMSM , making it possible to monitor the health of permanent magnets in the machine ’ s rotor , without requiring any sensors in the rotor
Impact • Many modern electric drives require sensorless drive capability to avoid using sensors in the rotor . The estimation of the rotor position and speed without using shaft sensors lowers costs and improves the reliability of variable-speed drive systems .
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Capabilities and Facilities • Simulation platforms ( Matlab – Simulink , PSIM ), FPGA and DSP systems with high-performance signal acquisition , estimation and switch gate-drive interfaces
• 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
Our Collaborators • CSIRO
• Wisconsin Electric Machines and Power Electronics Consortium ( WEMPEC )
• Toshiba
More Information |
Successful Applications • Sensorless control techniques from zero to full speed for PM motor drives
• Development of PWM-based sensorless control and high-speed Interior PM machines
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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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