Extreme voltages at the system nodes are one of the primary causes for total and partial collapse of the Nigerian grid. In this paper, we develop a framework to re-dispatch the voltage set-points of committed generators in the grid to improve the voltage profile of the system nodes thus lowering the likelihood of a grid collapse. This framework is an extension of circuit-theoretic formulation that can robustly solve general-purpose grid optimization problems. In the results section, we re-dispatch the voltage setpoints for committed generators in real-life Nigerian grid operation and planning test cases to improve the overall voltage profile of the grid. We further demonstrate that the re-dispatched grid is more resilient and secure than the base case through running contingency analyses.
@article{arxiv.1905.13090,
title = {Improving Voltage Profile of the Nigerian Power Grid},
author = {Amritanshu Pandey and Aayushya Agarwal and Marko Jereminov and Tochi Nwachuku and Barry G. Rawn and Larry Pileggi},
journal= {arXiv preprint arXiv:1905.13090},
year = {2019}
}