TY - JOUR ID - TI - Dynamic Response Assessment of the Nigerian 330kV Transmission System AU - Ignatius Kema Okakwu AU - Akintunde Samson Alayande AU - Olubayo Moses Babatunde AU - Ade-Ikuesan Olanike Olufisayo AU - Olabode Olakunle Elija PY - 2020 VL - 26 IS - 2 SP - 85 EP - 98 JO - Journal of Engineering مجلة الهندسة SN - 17264073 25203339 AB - This paper presents the dynamic responses of generators in a multi-machine power system. The fundamental swing equations for a multi-machine stability analysis are revisited. The swing equations are solved to investigate the influence of a three-phase fault on the network largest load bus. The Nigerian 330kV transmission network was used as a test case for the study. The time domain simulation approach was explored to determine if the system could withstand a 3-phase fault. The stability of the transmission network is estimated considering the dynamic behaviour of the system under various contingency conditions. This study identifies Egbin, Benin, Olorunsogo, Akangba, Sakete, Omotosho and Oshogbo as the key buses within the network, which could provide useful information when a three-phase fault occurs on Ikeja-West (Bus with the largest load). The results obtained also show that the system loses synchronism immediately a three-phase fault was simulated on the largest load bus, considering various contingencies with the generator at Geregu being the most severely disturbed generator.

ER -