Browsing by Author "Ogunbiyi Olalekan"

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    Effects of Ground Resistivity and Tower Structural Design on Transmission Line Symmetrical Components
    (International Journal of Recent Technology and Engineering (IJRTE), 2020) Lambe Mutalub Adesina, Ademola Abdulkareem; Ogunbiyi Olalekan
    Electric power transmission towers are line support that exists in different structural configurations depending on the design. Parameters in consideration for the design include proposed voltage and current ratings to be carried by the tower, weight of aluminum conductor and the weight of concrete foundation on which the tower would be erected. It is often reported that ground resistivity of the ground on which an electric power transmission tower is erected has significant effects on earth faults and transmission losses on the line. This paper presents an investigation of the effects of ground resistivity and tower structural design on transmission line symmetrical components. Symmetrical component parameters’ evaluation of the transmission lines approach is considered the best option. Ten differently structured transmission towers were selected for the case study. The effects of installing these ten towers on each of the available ground resistivity types were examined. A modern computer software was developed in carrying out this investigation. The results are presented and discussed. It was observed that at each location of a tower, ground resistivity plays a vital role in measuring the performance of tower in an electric power supply stability and reliability.
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    Newton-Raphson Algorithm for Power Flow Solution and Application
    (International Journal of Information Processing and Communication (IJIPC), 2020) Lambe Mutalub Adesina; Ogunbiyi Olalekan; Ganiyu Adedayo Ajenikoko
    Power system insecurity often lead to frequent power system collapse. Experience has shown that power utility companies are generally poor in network argumentation and planning. For example, it is required that any new project must be simulated to ascertain its effects in the network prior to construction. The simulation could be investigating the bus voltage profile, power flow, losses, overvoltage condition etc. Consequently, this paper presents a Newton-Raphson algorithm for power flow solution and the application of the developed Q-basic computer software package to a large power system network. It involves formulation of algorithms and development of flowcharts which were used to determine the steady state operating conditions of buses, generation, branch power flows and circuit system losses of the case study network considered. The results obtained are presented and discussed. The fast convergence of the system at fifth iteration confirmed the effectiveness of the software and accuracy of the results. Having previously tested the software with a known solution network and work fine, suggest the results obtained are accurate and reliable. Transmission lines with high reactive power needs installation of equipment capable of reducing the reactive power. Buses with voltage value a little less than acceptable standard needs improvement.