Analysis on Coordination of Loss of Excitation Protection, Out-of-Step Protection and Out-of-Step Splitting

Gui Lin Liu; Xin Li Song; Wei Song

doi:10.4028/www.scientific.net/AMR.971-973.398

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 971-973Analysis on Coordination of Loss of Excitation...

Analysis on Coordination of Loss of Excitation Protection, Out-of-Step Protection and Out-of-Step Splitting

Abstract:

In units’ grid-related protection, loss of excitation protection and out-of-step protection are very important to ensure the stable running of grid. If both can realize the right coordination when unit occur a phenomenon of low excitation, it can improve the level of power source coordinated with grid. However, there is a problem in the coordination of both. Propose an idea to solve the problem based on power angle. Besides, out-of-step protection and out-of-step splitting exists a coordination relation according to the location of out-of-step oscillation center. In order to prevent the collapse of grid and protect units, it is necessary to cut off out-of-step lines and units correctly. Summarize the reasonable coordination relation between both by theory analysis and research.

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Periodical:

Advanced Materials Research (Volumes 971-973)

Pages:

398-401

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.971-973.398

Citation:

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Online since:

June 2014

Authors:

Gui Lin Liu*, Xin Li Song, Wei Song

Keywords:

Coordination Relation, Grid-Related Protection, Loss of Excitation Protection, Out-of-Step Protection, Out-of-Step Splitting

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* - Corresponding Author

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