The development of cost-effective electric vehicles has renewed interest in Wound Field Synchronous Machines (WFSMs) for traction applications. However, low efficiency and frequent maintenance of the brushes prevent a wider adoption of WFSMs. To overcome these challenges, the application of wireless power transfer systems for field excitation has recently been explored. This paper presents an integrated Capacitive Power Transfer (CPT) system for field excitation of WFSMs. The proposed coupling structure for CPT is placed within the air gap of the machine. The CPT coupling plates are made of magnetic material. The novelty of the proposed approach is that the presented design allows power transfer to the rotor without increasing the active volume of the machine. A preliminary feasibility analysis of the system is performed through Finite Element Analysis (FEA) simulations. A prototype with a stator and a Computer Numerical Control (CNC) fabricated replica of a rotor is developed to test the proposed CPT system. Experimental verification of the proposed power transfer system demonstrates an efficiency of 81.3% with a transferred power of 64 W at 2 MHz frequency.

An Integrated Capacitive Power Transfer System for Field Excitation of Wound Field Synchronous Machine / Savio, Stefano; Hassan Gillani, Syed Muhammad; Pratik, Ujjwal; Chattopadhyay, Ritvik; Husain, Iqbal; Pantic, Zeljko. - ELETTRONICO. - (2023), pp. 829-835. (Intervento presentato al convegno 2023 IEEE Applied Power Electronics Conference and Exposition (APEC) tenutosi a Orlando, FL, USA nel 19-23 March 2023) [10.1109/APEC43580.2023.10131173].

An Integrated Capacitive Power Transfer System for Field Excitation of Wound Field Synchronous Machine

Savio, Stefano;
2023

Abstract

The development of cost-effective electric vehicles has renewed interest in Wound Field Synchronous Machines (WFSMs) for traction applications. However, low efficiency and frequent maintenance of the brushes prevent a wider adoption of WFSMs. To overcome these challenges, the application of wireless power transfer systems for field excitation has recently been explored. This paper presents an integrated Capacitive Power Transfer (CPT) system for field excitation of WFSMs. The proposed coupling structure for CPT is placed within the air gap of the machine. The CPT coupling plates are made of magnetic material. The novelty of the proposed approach is that the presented design allows power transfer to the rotor without increasing the active volume of the machine. A preliminary feasibility analysis of the system is performed through Finite Element Analysis (FEA) simulations. A prototype with a stator and a Computer Numerical Control (CNC) fabricated replica of a rotor is developed to test the proposed CPT system. Experimental verification of the proposed power transfer system demonstrates an efficiency of 81.3% with a transferred power of 64 W at 2 MHz frequency.
2023
978-1-6654-7539-6
File in questo prodotto:
File Dimensione Formato  
Conference_paper_CWPT.pdf

accesso aperto

Tipologia: 2. Post-print / Author's Accepted Manuscript
Licenza: PUBBLICO - Tutti i diritti riservati
Dimensione 14.36 MB
Formato Adobe PDF
14.36 MB Adobe PDF Visualizza/Apri
Savio-AnIntegrated.pdf

non disponibili

Tipologia: 2a Post-print versione editoriale / Version of Record
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 2.43 MB
Formato Adobe PDF
2.43 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2979175