Abstract
This paper presents a simple control method for controlling permanent magnet synchronous motors (PMSM) in a wide speed range without a shaft sensor. An adaptive observer is used for estimation of the rotor position and speed of a permanent magnet synchronous motors (PMSM). The observer compensates for voltage offsets and permanent magnet strength variations. The adaption structure for estimating the strength of the permanent magnet is determined from a Lyapunov stability proof. The control method is made robust at zero and low speed by changing the direct vector current component to a value different from zero. In order to verify the applicability of the method the controller has been implemented and tested on a 800 W motor.
Originalsprog | Dansk |
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Titel | IEEE International Symposium on Industrial Electronics, May 2004, Ajaccio, France. |
Publikationsdato | 2004 |
Status | Udgivet - 2004 |
Begivenhed | Adaptive sensorless field oriented control of PM motors including zero speed - Varighed: 19 maj 2010 → … |
Konference
Konference | Adaptive sensorless field oriented control of PM motors including zero speed |
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Periode | 19/05/2010 → … |