LOAD FLOW STUDIES ON NIGERIA 330KV NATIONAL GRID SYSTEM, USING NEWTON-RAPHSON’S METHOD (original) (raw)

2014, INTERNATIONAL RESEARCH JOURNAL OF MATHEMATICS, ENGINEERING & IT

Reactive power and voltage control constitute part of the major challenges in power system industry. Compensation in power system is very essential to eradicate the problem of constant power failure and outage in Nigeria power system. In this paper, the Nigerian 330KV, 30-bus system network is considered. Newton-Raphson’s solution method was employed to carry out the analysis because of its sparisty, fast convergence and simplicity attributes compared to other solution methods. Using the relevant data, MATLAB/SIMULINK software was used to carry out the simulation analysis and the results obtained showed that bus voltages outside the statutory limit of 0.95 ≤ Vi ≤ 1.05 p.u are: bus 14 (Jos) with value of 0.9359 p.u, bus 17 (Gombe) 0.9175 p.u, bus 19 (Maiduguri) 0.9106 p.u, bus 22 (Kano) 0.8849 p.u, bus 28 (Berni -Kebbi) -0.734 p.u, bus 3 (Okpai) 1.090 p.u and bus 29 (Kaduna) 0.9880 p.u while bus 30 (Makurdi) gave the value 0.8247 p.u under normal uncompensated condition.

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