Authors : O.S. Onohaebi and S.O. Igbinovia
Abstract: This study carried out an in-depth study and analysis of voltage dips associated with Nigerian 330 kV transmission network. The research methodology involved the power flow analysis of the network and subjecting it to contingency analysis and simulation using Newton-Raphson method in Power World Simulator (PWS) environment. The study revealed that the existing network have voltages as low as 217 kV at some buses. The proposed modifications to the 330 kV transmission network which incorporated some additional lines to form more loops and minimal compensation, meet the acceptable voltage limits of �5%, have positive impact on voltage dips and enhance reliability and security of the transmission grid.
O.S. Onohaebi and S.O. Igbinovia , 2008. Voltage Dips Reduction in the Nigeria 330 kV Transmission Grid. Journal of Engineering and Applied Sciences, 3: 496-503.