Hybrid Magnet - Field Winding Solutions for Exciters of Synchronous Generators

Decuzzi, Giovanni; Nuzzo, Stefano; Bolognesi, Paolo; Giangrande, Paolo; Galea, Michael

Abstract

For power generation purposes, wound-field synchronous generators are often preferred to permanent magnet machines, due to the need of controlling the field winding voltage and current for guaranteeing a constant voltage at the generator's armature terminals. In a traditional generating set, this function is accomplished by a relatively complex feedback control system which typically comprises an excitation system and an automatic voltage regulator. Due to their excellent and proven performance capability, such classical generating sets have seen only strictly incremental improvements in the last 60 years or so. However, today, there is an interest in revamping their design and development, partly due to the even increasing efficiency and reliability requirements and partly due to advances in material and manufacturing techniques. This work investigates the feasibility of a hybrid permanent magnet - field winding excitation for synchronous generators' exciters. This design solution aims at reducing the losses of the exciter and thus of the whole generating system, while also increasing its reliability.

Citation

Decuzzi, G., Nuzzo, S., Bolognesi, P., Giangrande, P., & Galea, M. (2019). Hybrid Magnet - Field Winding Solutions for Exciters of Synchronous Generators. In 2019 IEEE International Electric Machines & Drives Conference (IEMDC) (1458-1463). https://doi.org/10.1109/IEMDC.2019.8785174

• Conference Name: IEEE International Electric Machines & Drives Conference (IEMDC 2019)
• Conference Location: San Diego, CA, USA
• Start Date: May 12, 2019
• End Date: May 15, 2019
• Acceptance Date: Feb 17, 2019
• Online Publication Date: May 15, 2019
• Publication Date: May 1, 2019
• Deposit Date: Mar 5, 2020
• Publicly Available Date: Mar 9, 2020
• Pages: 1458-1463
• Book Title: 2019 IEEE International Electric Machines & Drives Conference (IEMDC)
• ISBN: 978-1-5386-9351-3
• DOI: https://doi.org/10.1109/IEMDC.2019.8785174
• Public URL: https://nottingham-repository.worktribe.com/output/3910750
• Publisher URL: https://ieeexplore.ieee.org/document/8785174
• Additional Information: © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.