This paper presents a high resolution position estimation system for sinusoidal surface PM machines based on a vector-tracking observer and a 90deg resolution encoder. It is shown here that this is the minimum amount of resolution needed for sinusoidal PM drives. The key implementation issues of this system are presented, and stability analysis is performed, leading to the definition of local stability limits, within which the actual position is tracked with bounded estimation error. The effect that non-uniform sector widths have on position estimation is also explored and a straightforward compensation method is proposed. Both simulation and experimental testing illustrate the performance and limitations of the proposed observer topology and of the drive when this observer is used for state feedback.

Sinusoidal Surface-Mounted PM Machine Drive Using a Minimal Resolution Position Encoder / DE DONATO, Giulio; M. C., Harke; GIULII CAPPONI, Fabio; R. D., Lorenz. - STAMPA. - 1:(2008), pp. 104-110. (Intervento presentato al convegno Conference Record of the 2008 IEEE 23rd Applied Power Electronics Conference and Exposition. APEC 2008 tenutosi a Austin (USA) nel 24-28 Febbraio 2008) [10.1109/APEC.2008.4522707].

Sinusoidal Surface-Mounted PM Machine Drive Using a Minimal Resolution Position Encoder

DE DONATO, Giulio;GIULII CAPPONI, Fabio;
2008

Abstract

This paper presents a high resolution position estimation system for sinusoidal surface PM machines based on a vector-tracking observer and a 90deg resolution encoder. It is shown here that this is the minimum amount of resolution needed for sinusoidal PM drives. The key implementation issues of this system are presented, and stability analysis is performed, leading to the definition of local stability limits, within which the actual position is tracked with bounded estimation error. The effect that non-uniform sector widths have on position estimation is also explored and a straightforward compensation method is proposed. Both simulation and experimental testing illustrate the performance and limitations of the proposed observer topology and of the drive when this observer is used for state feedback.
2008
Conference Record of the 2008 IEEE 23rd Applied Power Electronics Conference and Exposition. APEC 2008
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Sinusoidal Surface-Mounted PM Machine Drive Using a Minimal Resolution Position Encoder / DE DONATO, Giulio; M. C., Harke; GIULII CAPPONI, Fabio; R. D., Lorenz. - STAMPA. - 1:(2008), pp. 104-110. (Intervento presentato al convegno Conference Record of the 2008 IEEE 23rd Applied Power Electronics Conference and Exposition. APEC 2008 tenutosi a Austin (USA) nel 24-28 Febbraio 2008) [10.1109/APEC.2008.4522707].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/225010
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