Improvement of Power Supply in Distribution Network: A Case Study of Okporo, Rumuodomaya and Woji Substation, Nigeria

Autor: Nwachukwu Kingsley, D.C. Idoniboyeobu, S. L. Braide, T. K. Bala
Jazyk: angličtina
Rok vydání: 2023
Předmět:
DOI: 10.5281/zenodo.8054950
Popis: The study examines the improvement of Power supply in the distribution network of Okporo, Rumuodomaya and Woji of Rivers State, Nigeria. Power supply to the station is via two (2) 132kV transmission station namely Port Harcourt mains duly linked to Afam power station and Omoku power station. Electrical Transient Simulation (ETAP19.1) is used to model the network and its load flow is examined using Newton-Raphson technique. The result obtained from the pre-upgrade network simulation shows that the following buses: Aba Rd (89.41%), Agip (89.41%), Eligbolo (88.46%), FGC (88.46%), Okoh Rd (89.41%), Rukpokwu (88.46%), violate the statutory limit condition of 0.95-1.05p.u. Similarly, over loaded transformers are T8 (104.30%) and T9 (123.30%) with total real and reactive power losses are 284.9kW and 317.4kVAr. However, a cost effective optimization techniques is used to improve the network and the operating values after optimization for the buses and transformers are Aba Rd (98.18%), Agip (98.18%), Eligbolo (98.18%), FGC (98.18%), Okoh Rd (98.18%), Rukpokwu (98.18%), while the transformers are T8 (44.203%) and T9 (51.823%). The total real and reactive power loss after optimization is 224kW and 226kVAr. From the result obtained, it is evident that the proposed optimization techniques impacted significantly in the improvement of the distribution network.
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