Passivity based sensorless control of a smooth rotor permanent magnet synchronous motor

Describes a nonlinear control design method for a smooth rotor, permanent magnet synchronous motor (PMSM) that tracks an assigned, slowly varying velocity trajectory and an unknown, slowly varying load torque. The control uses only current measurements and a state observer provides load torque, posi...

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Bibliographic Details
Published inProceedings of the 36th IEEE Conference on Decision and Control Vol. 1; pp. 239 - 244 vol.1
Main Authors Bas, O.Y., Stankovic, A.M., Tadmor, G.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1997
Subjects
Control design
Current measurement
Observers
Permanent magnet motors
Rotors
Sensorless control
State estimation
Torque control
Trajectory
Velocity control
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ISBN0780341872
9780780341876
ISSN0191-2216
DOI10.1109/CDC.1997.650622

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Summary:Describes a nonlinear control design method for a smooth rotor, permanent magnet synchronous motor (PMSM) that tracks an assigned, slowly varying velocity trajectory and an unknown, slowly varying load torque. The control uses only current measurements and a state observer provides load torque, position and velocity estimates. Following a common approach in nonlinear control, a two steps design is used. The primary control is designed in the first step, which balances the estimated load at the desired velocity. An incremental control is added, in the second step, to drive tracking and estimation errors to zero. Passivity considerations are used in both the observer design and in the control of the incremental system to ensure local stability.
ISBN:0780341872
9780780341876
ISSN:0191-2216
DOI:10.1109/CDC.1997.650622