Voltage Stability Assessment of a Grid-Connected Wind Turbine on the BEDC Network Using Newton–Raphson Load Flow Analysis

Authors

  • Efetobor Mathew Ufuoma Dieu Engineering ltd
  • Anazia Emmanuel Aninye Deparment of Electrical Engineering, Nnamdi Azikiwe University, Awka.
  • Aghara Jachimma Vincent Deparment of Electrical Engineering, Nnamdi Azikiwe University, Awka.
  • Ibeh Charles Austeen Forensic Science Department, Nnamdi Azikiwe University, Awka.
  • Anionovo Ugochukwu Edebeani Deparment of Electrical Engineering, Nnamdi Azikiwe University, Awka.

Keywords:

Voltage Stability, Wind Energy, BEDC Network, Newton–Raphson Method, PowerWorld Simulator, Renewable Energy Integration, Transient Stability.

Abstract

This study evaluates the voltage stability of a grid-connected wind turbine integrated into the Benin Electricity Distribution Company (BEDC) network using Newton–Raphson load flow and transient simulations in PowerWorld Simulator. The network was analyzed under steady-state and three-phase fault conditions before and after wind turbine integration. A three-phase fault was applied to Feeder II of the Amukpe 132/33 kV substation. Results showed improved voltage stability following wind turbine integration. The minimum voltage increased from 0.2981 p.u. to 0.31153 p.u., while stabilization time decreased from approximately 4.7503 s to 2.191762 s. In addition, the maximum voltage angle reduced from 6.32887° to 2.53556°, with fewer system oscillations observed. These findings indicate that wind energy integration can improve transient voltage response, enhance damping, and strengthen the overall stability and reliability of the BEDC network.

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Published

2026-08-22

Issue

Vol. 6 No. 4 (2026): UNIZIK Journal of Engineering and Applied Sciences (In progress)

Section

Articles