Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/jspui/handle/123456789/14580
Title: A new admittance approach applicable to the coordination between the loss-of-excitation protection and the underexcitation limiter.
Authors: Baracho, Francisco Ricardo Abrantes Couy
Coelho, Aurélio Luiz Magalhães
Pereira Filho, Clever Sebastião
Damião, Laerty João dos Santos
Zvietcovich, Wilingthon Guerra
Keywords: Index terms—admittance plane
ANSI 40 protection
Coordination
Hardware-in-the-loop
Underexcitation limiter
Issue Date: 2020
Citation: BARACHO, F. R. A. C. et al. A new admittance approach applicable to the coordination between the loss-of-excitation protection and the underexcitation limiter. IEEE Latin America Transactions, v. 18, n. 10, p. 1732-1742, out. 2020. Disponível em: <https://latamt.ieeer9.org/index.php/transactions/article/view/3389>. Acesso em: 12 set. 2021.
Abstract: The performance of salient-pole synchronous generators protection is of great importance for the stability of power systems, as they are present in large hydropower plants, subject to various abnormal operating conditions such as threephase or two-phase faults, electromechanical disturbances and lossof-excitation. In this context, this work proposes a testing philosophy of salient-pole synchronous generators, in order to define more accurately the setting of the protections and controls of this asset. Thus, in the developed methodology, the admittance plan (G-B) proves applicable to analyze the coordination between the loss-ofexcitation protection and the underexcitation limiter, as an alternative to the power (P-Q) and impedance (R-X) planes, normally employed in literature. In modeling the problem, real data for both the hydrogenerators and the electrical network are used. The simulations were performed in a hardware-in-the loop scheme integrated by a Real Time Digital Simulator and a physical relay. Thus, analyzes are made for situations of stable power swing and partial and total loss-of-excitation. The results are useful to prove, through the monitoring of relevant variables of the hydrogenerators, the feasibility and accuracy of the G-B plane in the coordination between the protection and the control of the synchronous machine
URI: http://www.repositorio.ufop.br/jspui/handle/123456789/14580
metadata.dc.identifier.uri2: https://latamt.ieeer9.org/index.php/transactions/article/view/3389
ISSN: 1548-0992
Appears in Collections:DEELT - Artigos publicados em periódicos

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