Impact of the Field Winding Interturn Short-Circuit Position on Rotor Vibration Properties in Synchronous Generators

Yuan, Xing Hua; He, Yu Ling; Liu, Man Yu; Wang, Hui; Wan, Shu Ting; Vakil, Gaurang

Abstract

This paper investigates the effect of the field winding interturn short-circuit (FWISC) position on the rotor vibration properties in turbo generators. Different from the previous studies which focused on the influence of the short-circuit degree, this work pays much attention to the impact of the short-circuit position on the rotor unbalanced magnetic pull (UMP) properties and vibration characteristics. The theoretical UMP model is firstly deduced based on the analysis of the magnetic flux density (MFD) variation. Then, the finite element analysis (FEA) is performed to calculate the UMP data. Finally, the rotor vibrations are tested on a CS-5 prototype generator which has two poles and a rated capacity of 5 kVA. It is shown that the occurrence of FWISC will greatly increase the UMP as well as the rotor vibration. In addition to the short-circuit degree, the short-circuit position will also affect the UMP and vibration. The nearer the short-circuit position is to the big rotor teeth, the larger the UMP and vibration will be. The proposed study in this paper will be beneficial for the monitoring and diagnosis of FWISC faults.

Citation

Yuan, X. H., He, Y. L., Liu, M. Y., Wang, H., Wan, S. T., & Vakil, G. (2021). Impact of the Field Winding Interturn Short-Circuit Position on Rotor Vibration Properties in Synchronous Generators. Mathematical Problems in Engineering, 2021, Article 9236726. https://doi.org/10.1155/2021/9236726

• Journal Article Type: Article
• Acceptance Date: Nov 22, 2021
• Online Publication Date: Nov 30, 2021
• Publication Date: Nov 30, 2021
• Deposit Date: Nov 19, 2024
• Publicly Available Date: Nov 21, 2024
• Journal: Mathematical Problems in Engineering
• Print ISSN: 1024-123X
• Electronic ISSN: 1563-5147
• Publisher: Hindawi
• Peer Reviewed: Peer Reviewed
• Volume: 2021
• Article Number: 9236726
• DOI: https://doi.org/10.1155/2021/9236726
• Public URL: https://nottingham-repository.worktribe.com/output/35446184
• Publisher URL: https://onlinelibrary.wiley.com/doi/10.1155/2021/9236726