Voltage stability analysis in a subtransmission system, using qv-pv curves and modal analysis

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Published: Dec 13, 2021
DOI: https://doi.org/10.29166/ingenio.v4i2.3165
Keywords:
Voltage instability, inductive reactive powers, voltages, angles, PV, QV, participation factors, network collapse

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Rogger Peña
Instituto Superior Tecnológico Simón Bolívar, Guayaquil
Hólger Santillán
Universidad Politécnica Salesiana, Guayaquil
Juan Morales
Universidad Politécnica Salesiana, Guayaquil

Abstract

Voltage instability in a subtransmission electrical system in the Province of Manabí can occur in different ways such as: increased load, maximum machine performance operability, very remote generation points, very high inductive reactive powers, among others. All this generates problems in the sub-transmission of electrical power in the voltages and angles of the nodes of the system, by obtaining the PV curves it was identified that the Chone bar of 69 kV is the most critical and the QV the Manta bar of 69 kV under normal grid conditions using DigSilent software. With the increased load of 0.1 Mvar, the demand projections will be made using the reduced Jacobian matrix to obtain the participation factors, where the most critical of the branches is the Quevedo substation that has 0.8986 and the Daule-Peripa generation that arrives to have a value of 1, where all these operations were performed in Matlab. The need for this study analysis is of great importance, since with these projection values ​​a voltage instability will be created and the network would collapse.

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How to Cite
Peña, R., Santillán, H., & Morales, J. . (2021). Voltage stability analysis in a subtransmission system, using qv-pv curves and modal analysis. INGENIO, 4(2), 4–15. https://doi.org/10.29166/ingenio.v4i2.3165
Issue
Vol. 4 No. 2 (2021): Ingenio Journal, Faculty of Engineering and Applied Sciences
Section
Artículos
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Author Biographies

Rogger Peña, Instituto Superior Tecnológico Simón Bolívar, Guayaquil

Docente, Carrera de Electricidad y Carrera de Electromecánica

Hólger Santillán, Universidad Politécnica Salesiana, Guayaquil

Docente, Carrera de Telecomunicaciones

Juan Morales, Universidad Politécnica Salesiana, Guayaquil

Docente, Carrera de Electricidad

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