E-ISSN 2705-3954 | ISSN 0794-4756
 
2025, Vol: 32, Issue: 1
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Original Research 


Optimal STATCOM Placement for Enhanced Voltage Stability and Power Factor Improvement

Asiimwe Julius, Bwire Godfrey, Abdullahi Bala Kunya, Arinaitwe Robert, Katamba Rogers, Masereka Brain, Migisha Jim, Ndifuna Swalleh, Muhangi Ustus.


Abstract
The diverse and rapidly varying reactive power requirements in power systems pose significant threats to system security and stability. To mitigate these challenges, the Static Synchronous Compensator (STATCOM), a shunt device, is employed for rapid reactive power compensation. However, due to its high cost, deploying a STATCOM at every bus is impractical, necessitating an optimal strategy for its placement and sizing to maximize system performance. This study adopts the Invasive Weed Optimization (IWO) algorithm to determine the optimal size and location of multiple STATCOM units in a medium-voltage distribution network, focusing on enhancing voltage stability and overall power factor. The proposed method is validated on the IEEE 33-bus system, achieving a voltage deviation reduction of 32.60% (from 0.9413pu to 0.6344pu) and an improvement in the average power factor from 0.8147 to 0.9576, representing a 17.54% enhancement. Application of the technique to the Eastern Jinja DN in Uganda demonstrates significant improvements, with the average power factor increasing from 0.8505 to 0.9688 (a 13.91% improvement) and the voltage deviation reduced by 37.97% (from 1.7720pu to 1.0991pu). These results underscore the effectiveness of the proposed optimization approach in achieving improved voltage stability and power factor performance in real-world and analytical systems.

Key words: Distribution Network, Eastern Jinja DN, Invasive Weed Optimization, Power Factor Improvement, STATCOM, Voltage Profile Enhancement


 
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How to Cite this Article
Pubmed Style

Julius A, Godfrey B, Kunya AB, Robert A, Rogers K, Brain M, Jim M, Swalleh N, Ustus M. Optimal STATCOM Placement for Enhanced Voltage Stability and Power Factor Improvement. NJE. 2025; 32(1): 19-26.

Web Style

Julius A, Godfrey B, Kunya AB, Robert A, Rogers K, Brain M, Jim M, Swalleh N, Ustus M. Optimal STATCOM Placement for Enhanced Voltage Stability and Power Factor Improvement. https://www.njeabu.com.ng/?mno=242099 [Access: May 11, 2025].

AMA (American Medical Association) Style

Julius A, Godfrey B, Kunya AB, Robert A, Rogers K, Brain M, Jim M, Swalleh N, Ustus M. Optimal STATCOM Placement for Enhanced Voltage Stability and Power Factor Improvement. NJE. 2025; 32(1): 19-26.


Vancouver/ICMJE Style

Julius A, Godfrey B, Kunya AB, Robert A, Rogers K, Brain M, Jim M, Swalleh N, Ustus M. Optimal STATCOM Placement for Enhanced Voltage Stability and Power Factor Improvement. NJE. (2025), [cited May 11, 2025]; 32(1): 19-26.


Harvard Style

Julius, A., Godfrey, . B., Kunya, . A. B., Robert, . A., Rogers, . K., Brain, . M., Jim, . M., Swalleh, . N. & Ustus, . M. (2025) Optimal STATCOM Placement for Enhanced Voltage Stability and Power Factor Improvement. NJE, 32 (1), 19-26.


Turabian Style

Julius, Asiimwe, Bwire Godfrey, Abdullahi Bala Kunya, Arinaitwe Robert, Katamba Rogers, Masereka Brain, Migisha Jim, Ndifuna Swalleh, and Muhangi Ustus. 2025. Optimal STATCOM Placement for Enhanced Voltage Stability and Power Factor Improvement. Nigerian Journal of Engineering, 32 (1), 19-26.


Chicago Style

Julius, Asiimwe, Bwire Godfrey, Abdullahi Bala Kunya, Arinaitwe Robert, Katamba Rogers, Masereka Brain, Migisha Jim, Ndifuna Swalleh, and Muhangi Ustus. "Optimal STATCOM Placement for Enhanced Voltage Stability and Power Factor Improvement." Nigerian Journal of Engineering 32 (2025), 19-26.


MLA (The Modern Language Association) Style

Julius, Asiimwe, Bwire Godfrey, Abdullahi Bala Kunya, Arinaitwe Robert, Katamba Rogers, Masereka Brain, Migisha Jim, Ndifuna Swalleh, and Muhangi Ustus. "Optimal STATCOM Placement for Enhanced Voltage Stability and Power Factor Improvement." Nigerian Journal of Engineering 32.1 (2025), 19-26. Print.


APA (American Psychological Association) Style

Julius, A., Godfrey, . B., Kunya, . A. B., Robert, . A., Rogers, . K., Brain, . M., Jim, . M., Swalleh, . N. & Ustus, . M. (2025) Optimal STATCOM Placement for Enhanced Voltage Stability and Power Factor Improvement. Nigerian Journal of Engineering, 32 (1), 19-26.


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