Sensitivity analysis for performance and power density improvements in salient-pole synchronous generators

Wang, Yinli; Vakil, Gaurang; Nuzzo, Stefano; Degano, Michele; Galea, Michael; Gerada, Chris; Zhang, He; Brown, Neil

Abstract

Objective of this paper is to provide design recommendations to improve the performance and power density of a 400kVA salient-pole synchronous generator, without exceeding the limitations due to critical parameters such as total harmonic distortion of the no-load voltage. Preliminarily, a finite-element analysis of the considered machine is carried out, aiming at validating the inherent model against experiment measurements. An in-detailed sensitivity analysis of the machine’s design parameters that mostly affect the performance of the platform under investigation is performed. It has been found that the position and the shape of axial ventilation ducts, as well as the stator slot shape do not affect the electromagnetic performance in a significant way and it can be highly beneficial from a thermal point of view, resulting in reduced rotor temperatures. Additionally, the shape of the salient poles and the damper winding arrangement can produce positive effects on the general performance, particularly allowing for an improved voltage THD and power density of the machine being studied in this paper.

Citation

Wang, Y., Vakil, G., Nuzzo, S., Degano, M., Galea, M., Gerada, C., …Brown, N. (2017). Sensitivity analysis for performance and power density improvements in salient-pole synchronous generators. In Proceedings - 2017 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) (163-168). https://doi.org/10.1109/WEMDCD.2017.7947741

• Conference Name: IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) 2017
• Conference Location: Nottingham, UK
• Start Date: Apr 20, 2017
• End Date: Apr 21, 2017
• Acceptance Date: Mar 3, 2017
• Online Publication Date: Jun 15, 2017
• Publication Date: 2017
• Deposit Date: Aug 24, 2017
• Publicly Available Date: Aug 24, 2017
• Peer Reviewed: Peer Reviewed
• Pages: 163-168
• Book Title: Proceedings - 2017 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)
• ISBN: 978-1-5090-5854-9
• DOI: https://doi.org/10.1109/WEMDCD.2017.7947741
• Keywords: Salient-Pole Synchronous Generator, Power Density, Total Harmonic Distortion
• Public URL: https://nottingham-repository.worktribe.com/output/866274
• Publisher URL: http://ieeexplore.ieee.org/document/7947741/
• Related Public URLs: http://w1.icem.cc/wemdcd2017/
• Additional Information: © 2017 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.