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Sensorless control of permanent magnet synchronous motor (PMSM)

Saeed, Farhan (2013). Sensorless control of permanent magnet synchronous motor (PMSM). Master of Engineering Thesis, Charles Darwin University.

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Author Saeed, Farhan
Title Sensorless control of permanent magnet synchronous motor (PMSM)
Institution Charles Darwin University
Publication Date 2013-10
Thesis Type Master of Engineering
Supervisor Yeo, Charles
Abstract Mechanical sensors used for measuring speed and rotor position sustain problems of reduced reliability in extreme conditions like in chemical industry,enhanced complexity due to integration of added signal processing circuitry and high noise.These reasons encourage expansion of research in order to minimize the need for sensors in controlling of motor drives.Sensorless methods limit the need of mechanical sensors by estimating speed and rotor position from voltage and current sensors.Different algorithms have been presented as sensorless methods but Extended Kalman Filter Method,Back-Emf method and Model referene adaptive System were considered for the purose of this research. These sensorless control methods were validated through detailed simulations.Results showed that although all three can potentially replace sensor based control but EKF is most accurate among three while MRAS is most robust.Although EMF –based control method is easy to implement, it is least accurate and least robust among the three chosen methods.
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Created: Thu, 24 Aug 2017, 13:37:55 CST by Jessie Ng