IIARD International Institute of Academic Research and Development

International Journal of Engineering and Modern Technology (IJEMT )

E-ISSN 2504-8848
P-ISSN 2695-2149
VOL. 11 NO. 5 2025
DOI: 10.56201/ijemt.vol.11.no5.2025.pg152.172

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Enhancing Bulk Power Transmission Efficiency in 330 kV Networks Using Thyristor Controlled Series Compensator (TCSC)

Ezekiel Nnamere Aneke, Nnamdi Ahuchaogu

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Abstract

Power transmission efficiency is pivotal to the stability and reliability of any electrical grid. Nigeria’s 330 kV transmission network is plagued by voltage violations and high technical losses exceeding acceptable thresholds. This study investigates the application of a Thyristor Controlled Series Compensator (TCSC) to mitigate these losses and improve operational efficiency. A 41-bus network representing Nigeria’s transmission system was modeled using Power System Analysis Toolbox (PSAT) and MATLAB/Simulink. Load flow analysis was carried out using the Newton- Raphson method, and multiple sensitivity analysis was used to identify optimal placement of the TCSC. Results show a significant reduction in voltage violations—from 15 to 6 buses—and a 33% reduction in active power loss, validating the effectiveness of the TCSC integration. This study provides a cost-effective and scalable solution to power quality issues in the Nigerian grid.

keywords:

TCSC, transmission line, technical losses, PSAT, 330 kV network, FACTS devices, load

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