Mohammad Reza Haseli, Farhad Haghjoo, Abbas Hasani
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引用次数: 0
摘要
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。
A new air gap flux-based technique to detect loss of field in synchronous generators
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.
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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