This article proposes a suitable controller for the mechanical flux weakening solution based on a split rotor SPM machine. In this machine configuration, the rotor is split in two independent sections which can rotate one with respect to the other to regulate the amount of permanent magnet flux linkage. The shifting torque to enable the relative rotor motion is generated inside the machine, through the d-axis current, without the use of any external actuator.The machine mathematical model is discussed to describe how the rotors angle affects the electromagnetic model and to introduce the relationship between d-axis current and rotors' shifting angle. A modified version of the standard current controller is proposed, according to the obtained electromagnetic model. In addition, a regulator based on feedback linearization is proposed to control the rotors' shifting angle dynamics. To conclude, a simple model based open loop flux weakening strategy is developed. The theoretical analysis is supported by simulation results.
Control of a split rotor SPM synchronous machine for very wide flux weakening operations / Lelli, Francesco; Marcolini, Federico; GIULII CAPPONI, Fabio; Caricchi, Federico. - (2023), pp. 4797-4804. (Intervento presentato al convegno 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023 tenutosi a Nashville; USA) [10.1109/ECCE53617.2023.10362786].
Control of a split rotor SPM synchronous machine for very wide flux weakening operations
Francesco Lelli;Federico Marcolini;Fabio Giulii Capponi;Federico Caricchi
2023
Abstract
This article proposes a suitable controller for the mechanical flux weakening solution based on a split rotor SPM machine. In this machine configuration, the rotor is split in two independent sections which can rotate one with respect to the other to regulate the amount of permanent magnet flux linkage. The shifting torque to enable the relative rotor motion is generated inside the machine, through the d-axis current, without the use of any external actuator.The machine mathematical model is discussed to describe how the rotors angle affects the electromagnetic model and to introduce the relationship between d-axis current and rotors' shifting angle. A modified version of the standard current controller is proposed, according to the obtained electromagnetic model. In addition, a regulator based on feedback linearization is proposed to control the rotors' shifting angle dynamics. To conclude, a simple model based open loop flux weakening strategy is developed. The theoretical analysis is supported by simulation results.File | Dimensione | Formato | |
---|---|---|---|
Lelli_Control_2023.pdf
solo gestori archivio
Tipologia:
Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza:
Tutti i diritti riservati (All rights reserved)
Dimensione
1.93 MB
Formato
Adobe PDF
|
1.93 MB | Adobe PDF | Contatta l'autore |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.