Skip to content
Research Article Open access CC BY 4.0

Voltage Stability Evaluation in the Nigeria 44 Bus Grid Network using Modal Analysis

E. N. Aneke, B. E. Ibekwe, J. C. Iyidobi, E. N. C. Okafor

Journal of Engineering Research and Reports · pp. 80–89 · Published 10 Aug 2021

10.9734/jerr/2021/v20i1117411

Abstract

This paper focused on the application of modal analysis method to determine the voltage stability of the Nigeria 44 bus 330kV transmission grid network and to determine the network’s weakest buses. Modal method calculates the smallest eigenvalue and all the associated eigenvectors of the reduced Jacobian matrix, JR using steady state mode. The network model was developed in PSAT-MATLAB and load flow was performed on the network. Results and analysis showed that the Nigeria 44 Bus grid network was found to be unstable as the modal analysis revealed the presence of eigenvalue with a negative real part. Gombe, Damaturu and Yola buses were also discovered to be the vulnerable buses since their voltage profile fell below the IEEE standard voltage level of (0.95-1.05) pu. Yola bus was spotted as the weakest bus based on the analysis of the participating factors.

PSAT MATLAB modal eigenvalue eigenvector V oltage stability participating factors

Cited by 2

ANN Based Voltage Stability Enhancement and Voltage Collapse Reduction in Stressed Multi-Bus Network using Controlled STATCOM

Aneke E. N., Eneh I. I., Iyidobi J. C. · ESP Journal of Engineering & Technology Advancements · 2023

Mitigating Voltage Collapse in the Nigeria 44 Bus 330kV Power Transmission Network during Contingency of Three Phase Fault using ANN Controlled STATCOM

E. Aneke, I. I. Eneh, J. C. Iyidobi · International Journal of Scientific and Research Publications (IJSRP) · 2021

Article metrics

Real usage data collected on this platform.

0

Page views

0

PDF downloads

0

Outbound clicks

2

Citations

Views by country

Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".

No views recorded yet.

Traffic sources

Referring site, by host.

No traffic recorded yet.

Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.