Maximum Loadability Assessment of the Nigerian 330kv Transmission Network Using P-V Curve Method
Abstract
System operating limits are usually based upon certain operating criteria though they are not limited to the following: Facility ratings, Voltage stability ratings, Transient stability ratings and System voltage limits. All components in the Nigerian 330KV transmission network operate between predefined limits in normal condition and the technical operational thresholds for power systems involve physical and system theoretical. Newton-Rapson load flow method was used to determine optimal location for static var placement. 5 buses were identified and compensated using NEPLAN Software for the system modeling. P-V curve plot showcased the maximum loading of the system {operating margin). P-V curve comparison for pre-upgrade, post-upgrade and artificial neural network respectively in respect to the 5 buses was plotted. For Gombe bus, the red curve indicates the maximum loadability of the pre-upgrade network at 700MW. The green curve indicates the effect of static var compensation with maximum loadability at 1100MW. Therefore, the improvement achieved is 400MW. Finally, the artificial neural network technique is represented by the blue curve and it validated the improvement achieved as the voltage and real power remain fairly constant with static compensators. For Jalingo bus, the red curve maximum loadability is at 550MW. The green curve maximum loadability is at 1150MW. Finally, the blue curve validated the improvement achieved. For Yola bus, the maximum loadability is at 620MW. The green curve maximum loadability is at 1100MW. Finally, the blue curve validated the improvement achieved. For Maiduguri bus, the red curve maximum loadability is at 600MW. The green curve maximum loadability is at 1120MW. Finally, the blue curve validated the improvement achieved. For Damaturu bus, the red curve maximum loadability is at 450MW while the green curve maximum loadability is at 1150MW meaning about 650MW improvement was achieved.
Citations
IRE Journals:
Chukwuka L. Onita , Christopher O. Ahiakwo , Dikio C. Idoniboyeobu , Sepiribo L. Braide
"Maximum Loadability Assessment of the Nigerian 330kv Transmission Network Using P-V Curve Method" Iconic Research And Engineering Journals Volume 5 Issue 11 2022 Page 231-242
IEEE:
Chukwuka L. Onita , Christopher O. Ahiakwo , Dikio C. Idoniboyeobu , Sepiribo L. Braide
"Maximum Loadability Assessment of the Nigerian 330kv Transmission Network Using P-V Curve Method" Iconic Research And Engineering Journals, 5(11)
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