Speed sensorless control of an interior PM synchronous motor

This paper presents an adaptive observer for speed sensorless field-oriented control of interior permanent magnet (IPM) synchronous motors. The observer detects the rotor magnet flux components in the two-phase stationary reference frame using the motor electrical equations. The motor speed is ident...

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Bibliographic Details
Main Authors: Parasiliti, F., Petrella, R., Tursini, M.
Format: Conference Proceeding
Language:English
Subjects:
Adaptive control
Equations
Frequency estimation
Lyapunov method
Magnetic flux
Permanent magnet motors
Programmable control
Rotors
Sensorless control
Synchronous motors
Online Access:Request full text
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Description
Summary:This paper presents an adaptive observer for speed sensorless field-oriented control of interior permanent magnet (IPM) synchronous motors. The observer detects the rotor magnet flux components in the two-phase stationary reference frame using the motor electrical equations. The motor speed is identified by a model reference adaptive scheme using an additional equation obtained by a Lyapunov function. The analytical development of the observer is fully explained. The convergence of the estimates at low speeds and standstill is achieved through the assistance of a high frequency signal injection technique. Realistic simulations accounting for the inaccuracy of an actual digital signal processor (DSP) implementation are presented and discussed.
ISSN:0197-2618
2576-702X
DOI:10.1109/IAS.2002.1044167