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Linear Electrical Machine Drive Systems
Linear electrical machines are used in an increasing number of applications , including down-hole pump applications and electrical launch systems . Both a permanent-magnet mover and a line-start linear electrical machine drive system have been designed for linear machine drive systems . Together , they optimise periodic motion and enhance the line-start capability of the permanent-magnet linear synchronous machine . |
Competitive Advantage • Leading-edge rotor technologies developed for specific applications
• Experience in a wide range of conventional and advanced linear machine control techniques ( vector and scalar control , sliding-mode control , modelpredictive control )
• Ability to rapidly develop and prototype controllers
• Custom linear machine design and prototyping
• Expertise in using damping windings for modelling and drive strategy
• Ability to deliver higher tolerance in the estimated position
Impact • Development of linear machine solutions to support a rapidly growing market
• Tuning improvements and robust control techniques improve the tracking and performance of controllers and yield faster responses
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Capabilities and Facilities • Advanced machine control algorithms to improve force control , position and speed tracking
• Linear electrical machine design software
• Prototype controller ready for commercialisation
• Hardware setup for testing linear machines , with two types of mover
• dSPACE 1104 real-time experimental platform
• Complete motion control system
Our Collaborators • Motorica
More Information Professor John Fletcher
School of Electrical Engineering and Telecommunications
T : + 61 2 9385 6007
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• Line-start within all ranges of initial mover position |
E : john . fletcher @ unsw . edu . au |
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• Rapid acceleration to synchronous speeds without the need for accurate position sensor |
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Successful Applications |
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• The development of a down-hole pump for the pumping industry |
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• Up to 6 % reduction in overshoot of the periodic motion |
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• Prototype electromagnetic launch system |
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• General linear machine drive systems |
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