Skip to content Home Contact Mobile MyRMIT Library A-Z
RMIT UniversityResearch Repository
 

A novel hybrid angle tracking observer for resolver to digital conversion

Hoseinnezhad, R and Harding, P 2005, 'A novel hybrid angle tracking observer for resolver to digital conversion', in E.F. Camacho (ed.) Proceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05, New York, United States, 12-15 December 2005, pp. 7020-7025.

Document type: Conference Paper
Collection: Conference Papers

Title A novel hybrid angle tracking observer for resolver to digital conversion
Author(s) Hoseinnezhad, R
Harding, P
Year 2005
Conference name 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05
Conference location New York, United States
Conference dates 12-15 December 2005
Proceedings title Proceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05
Editor(s) E.F. Camacho
Publisher IEEE
Place of publication New York, United States
Start page 7020
End page 7025
Total pages 6
Abstract Resolvers are absolute angle transducers that are usually used for position and speed measurement in permanent magnet motors. An observer that uses the sinusoidal signals of the resolver for this measurement is called an Angle Tracking Observer (ATO). Current designs for such observers are not stable in high acceleration and high-speed applications. This paper introduces a novel hybrid scheme for ATO design, in which a closed-loop LTI observer is combined with a quadrature encoder. Finite gain stability of the proposed design is proven based on the circle theorem in input-output stability theory. Simulation results show that the proposed ATO design is stable in two cases where an LTI observer and an extended Kalman filter are unstable due to high speed and acceleration,. In addition, the tracking accuracy of our hybrid scheme is substantially higher than a single quadrature encoder.
Subjects Mechanical Engineering not elsewhere classified
Copyright notice © 2005 IEEE
ISBN 9780780395688
 
Versions
Version Filter Type
Citation counts: Scopus Citation Count Cited 6 times in Scopus Article | Citations
Access Statistics: 30 Abstract Views  -  Detailed Statistics
Created: Fri, 25 Nov 2011, 12:46:00 EST by Catalyst Administrator