Modeling of Existing 330kV and Meshed 330kV Super-grid Transmission Line for the Nigerian Network

Abstract

Line losses in power transmission network establish one of the main problems affecting power generation and distribution systems. Losses have been found to affect the overall efficiency of a system. Therefore, to increase the efficiency of any power system, losses must be minimized and one of the ways of addressing this is through the modelling of Existing 330kV and Meshed 330kV Super-grid Transmission Line for The Nigerian Network. To accomplish this goal, power-flow analysis was carried on existing 330kV and meshed networks using fast decouple techniques via power systems analysis toolbox (PSAT) 2.1.10 in MATLAB 2015a environment. Results from the research work shows an output total loss of 161.372MW/1.757869MW for Existing/meshed 330kV super grid Networks respectively. The results from the study show that the meshed network’s has minimal average line loss of 1.2202MW, less reactive power of 0.034MVAR, additional network stabilities with average loops of 41 lines, increase the current carrying capacities of 4*5800MW, better voltage regulations of average 99.976%, high transmission efficiencies of 99.999%, reduction in the phase shift angles of average 0.03℃ and loss percentage reduction of 98.91% as compared to existing 330kV network of average 10.50℃, also meshed networks has overall average voltages between 0.996pu - 1.000p.u. Enactment of meshed network will lead to astonishing power transmission in the future.

Keywords

• efficiency
• losses
• meshed-network
• modeling
• super-grid