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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/2381
- A novel hybrid angle tracking observer for resolver to digital conversion
- Harding, Peter; Hoseinnezhad, Reza
- 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.
- Publication type
- Conference paper
- Research centre
- Swinburne University of Technology. Faculty of Engineering and Industrial Sciences
- Proceedings of the 44th International Conference on Decision and Control and European Control Conference ECC '05, 12-15 December 2005, Seville, Spain, pp. 7020-7025
- Publication year
- Institute of Electrical and Electronics Engineers
- Publisher URL
- © 2005 IEEE.
- Peer reviewed