Voltage Quality Analysis on Power Transmission Networks: A Case  Study of 330kV Power  Transmission Networks in Nigeria

Patrick O. Olabisi; Gbenga Ayeni

doi:10.9734/jerr/2023/v25i4901

Voltage Quality Analysis on Power Transmission Networks: A Case Study of 330kV Power Transmission Networks in Nigeria

Full Article - PDF Review History

Published: 2023-06-20

DOI: 10.9734/jerr/2023/v25i4901

Page: 42-50

Issue: 2023 - Volume 25 [Issue 4]

Patrick O. Olabisi *

Bells University of Technology, Ota, Nigeria.

Gbenga Ayeni

Bells University of Technology, Ota, Nigeria.

*Author to whom correspondence should be addressed.

Abstract

The 330kV power transmission system in Nigeria is associated with numerous problems ranging from voltage instability, ageing network, long and weak transmission lines and insulators, absence of protection schemes on the distribution network, lack of spinning reserve to compensate for power shortages, obsolete substation equipment, and higher power losses which substantially affect the reliability of power supply in Nigeria. This study aimed at analysing this scenario and to propose stability improvement measures in the power Network. Voltage instability is a major factor responsible for several system collapse and blackout experienced in the country. This work used necessary data obtained from the National Control Centre (NCC) of Transmission Company of Nigeria (TCN) for load flow simulation with the help of MATLAB R2021a software. Newton-Raphson iterative technique was used to carry out the load flow analysis due to its ability to converge faster with less iteration than Gauss-seidel and fast decoupled iterative techniques. The simulation results revealed that buses 4 (Akangba), 5 (Jos), 7 (Ikeja-west), 10 (Alagbon), 19 (Damaturu), 23 (Sakette), 28 (Ajah), 33 (Oke-Aro), 34 (Ayede) and 42 (Lekki) violate the acceptable limits as its voltage magnitude falls below the standard limit of 0.95-1.05pu. It was also observed that buses 6 (Kaduna), 13 (Yola), 16 (Gombe), 22 (Kano) and 34 (Ayede) are close to the point of instability as their voltage magnitudes are between 0.95 and 0.96 pu. These buses need urgent compensation if stability improvement in the entire Nigerian transmission system is to be achieved.

Keywords: Transmission systems, disturbance, voltage stability, voltage collapse, fluctuation, stability improvement

How to Cite

Olabisi , P. O., & Ayeni , G. (2023). Voltage Quality Analysis on Power Transmission Networks: A Case Study of 330kV Power Transmission Networks in Nigeria. Journal of Engineering Research and Reports, 25(4), 42–50. https://doi.org/10.9734/jerr/2023/v25i4901

Downloads

Download data is not yet available.

References

Sakthivel S. Reactive power planning for voltage stability limit improvement with FACTS devices in most critical contingency condition. European Journal of Scientific Research. 2011;66:408-420.

Aneke KE, Ngang NB. Improving the efficacy of the Nigeria electric power transmission network using static synchronous compensator (STATCOM). Journal of Information Engineering and Application. 2021;2(2):1-11.

Kundur P. Power System Stability and Control. Mc Graw-Hill, New York; 1994.

Anbarason A, Sanavullah MY. Voltage stability improvement in power system by using STATCOM. International Journal of Engineering and Technology; 2012.

Salama H, Youssef T. Voltage stability of transmission. International Journal of Innovation and Applied Studies. 2018;24(2):439-445.

Anita, Anant. A review of different FACTS Devices used in electrical power systems. International Journal of Engineering Research and Technology (IJERT). 2021;10.

Afolabi O. Abioye, Nkeleme V. Obinna, Alimi T. Adekunle, Shallum T. Abraham. Impact of FACTS devices (STATCOM) on voltage improvement and transmission losses reduction on 132kv Bida power transmission system network. International Journal of Innovative Research in Education, Technology, and Social Studies. 2020;7:44-52.

Pavithren Thannimalai, Raman Raghu Raman, Pratap Nair, Nithiyananthan K. Voltage stability analysis and improvement of power system. International Journal of Electrical and Computer Engineering. 2015;5:189-197.

Adebayo I, Aborishade, Kayode O. Steady state voltage stability enhancements using Static Synchronous Series Compensator (SSSC): A case study of Nigeria 330kv grid system. Research Journal in Engineering and Applied Sciences. 2013:54-61.

Available:https:vanguardngr.com/2021/06/national-grid-collapses-thrice-in-5-months-130-times-in-8-yrs-investigation/amp/

Olaiya BO, Olulope PK. Voltage stability analysis in Nigeria power grid. A detailed literature review. 2019;2:1-10.

Ignatius K. Okakwu, Emmanuel A. Ogujor, Patric A. Oriaifo. (). Load flow assessment of the Nigeria 330kv power system. American Journal of Electrical Electronics Engineering. 2017;5(4):159-165.

Single line diagrams of Nigerian 44 buses, 330kv transmission network. Project Monitoring Unit (PMU) of Transmission Company of Nigeria, Abuja.

Soufiane Lemdani, Habib Benbouhenni. Improving voltage stability of electrical power system by optimal location of FACTS devices using evolutionary method. Tecnaitaliana-Italian Journal of Engineering Sciences. 2021;65(1):108-112.

Okwe GI, Akwukwaegbu IO, Uneze IN, Nnanyereugo C. Voltage stability improvement of power transmission system in Nigeria using TCSC. US open Electrical & Electronics Engineering Journal. 2015;1(1):1-15.

Nilson valentine, Erick Prieto, Mario Chauca. “Voltage stability analysis based on power voltage (P-V) and reactive voltage (Q-V) curves in transmission lines using static VAR compensator (SVC) with power factory program.” Journal of Physics: Conference Series; 2021.

Mbunwe MJ, Ekwue AO. Voltage stability analysis of the nigerian power system using annealing optimization techniques. Nigerian Journal of Technology. 2020;39: 562-571.