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Regenerating-mode stabilization of the "statically compensated voltage model''

Lennart Harnefors (Institutionen för energi och miljö, Elteknik) ; Rolf Ottersten
Ieee Transactions on Industrial Electronics (0278-0046). Vol. 54 (2007), 2, p. 818-824.
[Artikel, refereegranskad vetenskaplig]

Reversal of rotation under load of sensorless induction motor drives is very challenging, as there is often an unstable region in the low-speed regenerating mode. In this paper, a variant of the classical "voltage model," i.e., the "statically compensated voltage model," is modified for stable regenerating-mode operation with accurate model motor parameters. The mechanisms behind two low-speed instability phenomena are thereafter, explored, and methods for avoiding instability with inaccurate model parameters are developed. Experimental results verify the theory and show adequate performance.

Nyckelord: flux estimation, induction motor (IM), sensorless control, INDUCTION-MOTOR DRIVES, VECTOR CONTROL, SPEED, MACHINES, DESIGN, OBSERVER, OPERATION

Denna post skapades 2008-11-12.
CPL Pubid: 77728


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Institutioner (Chalmers)

Institutionen för energi och miljö, Elteknik


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Chalmers infrastruktur