A new air gap flux-based technique to detect loss of field in synchronous generators

IF 1.5 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC Iet Electric Power Applications Pub Date : 2024-01-02 DOI:10.1049/elp2.12410
Mohammad Reza Haseli, Farhad Haghjoo, Abbas Hasani
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Abstract

A new technique is proposed for loss of field (LOF) detection in synchronous generators (SGs). The proposed scheme employs the variations of SG angular velocity ∆ωφ and load angle ∆δφ to reach this goal, while the mentioned parameters are estimated through air gap flux estimation. The proposed scheme performance is evaluated using realistic simulation case studies based on IEEE C. 37. 102 standard compared to the conventional impedance-based one. The obtained results show that the presented scheme excels the conventional scheme from speed and security viewpoints. Moreover, the estimation procedure of ∆ωφ and ∆δφ is experimentally validated by using a 10 kVA SG and the results demonstrate that the proposed technique can be easily set and implemented.

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基于气隙磁通量的同步发电机失磁检测新技术
本文提出了一种用于同步发电机(SG)失场(LOF)检测的新技术。所提方案利用 SG 角速度 ∆ωφ 和负载角 ∆δφ 的变化来实现这一目标,而上述参数则通过气隙通量估计来估算。根据 IEEE C. 37.102 标准,与传统的基于阻抗的方案进行了比较。结果表明,从速度和安全性角度来看,所提出的方案优于传统方案。此外,∆ωφ 和 ∆δφ 的估算程序通过使用 10 kVA SG 进行实验验证,结果表明所提出的技术易于设置和实施。
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来源期刊
Iet Electric Power Applications
Iet Electric Power Applications 工程技术-工程:电子与电气
CiteScore
4.80
自引率
5.90%
发文量
104
审稿时长
3 months
期刊介绍: IET Electric Power Applications publishes papers of a high technical standard with a suitable balance of practice and theory. The scope covers a wide range of applications and apparatus in the power field. In addition to papers focussing on the design and development of electrical equipment, papers relying on analysis are also sought, provided that the arguments are conveyed succinctly and the conclusions are clear. The scope of the journal includes the following: The design and analysis of motors and generators of all sizes Rotating electrical machines Linear machines Actuators Power transformers Railway traction machines and drives Variable speed drives Machines and drives for electrically powered vehicles Industrial and non-industrial applications and processes Current Special Issue. Call for papers: Progress in Electric Machines, Power Converters and their Control for Wave Energy Generation - https://digital-library.theiet.org/files/IET_EPA_CFP_PEMPCCWEG.pdf
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