Improved Speed Extension for Permanent Magnet Synchronous Generators by Means of Winding Reconfiguration

Xuanyi Zhou, Jiajun Yang (), Giovanni Migliazza, Sandro Guenter, Shuo Wang, Chris Gerada and Giampaolo Buticchi
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Xuanyi Zhou: Key Laboratory of More Electric Aircraft Technology of Zhejiang Province, Department of Electrical and Electronic Engineering, University of Nottingham Ningbo China, Ningbo 315104, China
Jiajun Yang: Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, Ningbo 315104, China
Giovanni Migliazza: The DISMI-Department of Sciences and Methods for Engineering, University of Modena and Reggio Emilia, 42122 Reggio Emilia, Italy
Sandro Guenter: Key Laboratory of More Electric Aircraft Technology of Zhejiang Province, Department of Electrical and Electronic Engineering, University of Nottingham Ningbo China, Ningbo 315104, China
Shuo Wang: Key Laboratory of More Electric Aircraft Technology of Zhejiang Province, Department of Electrical and Electronic Engineering, University of Nottingham Ningbo China, Ningbo 315104, China
Chris Gerada: Power Electronics, Machines and Control Group, University of Nottingham, Nottingham NG7 2RD, UK
Giampaolo Buticchi: Key Laboratory of More Electric Aircraft Technology of Zhejiang Province, Department of Electrical and Electronic Engineering, University of Nottingham Ningbo China, Ningbo 315104, China

Energies, 2023, vol. 16, issue 2, 1-10

Abstract: With the increased development of electrical subsystems onboard modern transportation platforms, e.g., more electric aircrafts or more electric ships, the need for electric generation systems has increased. Since many motors require electric starting capability, the application of the starter/generator has been the focus of several studies. The peculiarity of such a system is its requirement for high torque at low speed (for the starting) as well as an extended operation range during the normal generation operations. This mismatch between maximum torque and speed comes at the expense of the power density of the electronic converter, which needs to be designed for the worst case situation and, due to the electric machine optimization, often requires field weakening operations. A new winding reconfiguration is proposed to achieve speed extension and provide more potentiality for high-speed applications. This work compares different power trains in terms of efficiency current stress for electric machines. Hardware-in-the-loop results are adopted to verify the practical implementation of the control systems.

Keywords: starter/generator; power electronics; more electric aircrafts; winding reconfiguration (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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