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Efficient Power Flow on Direct Current Transmission Lines Using the Load and Component Sizing Technique

Igbogidi, O. N., Amadi, H. N.

Abstract


Due to losses, hazards and cost implications inherent in the use of alternating current systems, the benefits surrounding the use of direct current are so large that it is imperative to explore the technology of direct current, especially on transmission lines. The use of direct current has become so attractive with its attendant benefits and that is the reason a 132kV direct current transmission line from Afam power station to Port Harcourt Mains was proposed. A bipolar direct current link was designed between Afam and Port Harcourt Mains with full utilization of load and component sizing mathematical approach embedded in Electrical Transient Analyzer Program (ETAP) 19.0.1 software. Load flow analysis was conducted on the network after design where buses 1, 2, 3 and 4 maintained total loads of 31.557MW, 31.401MW, 31.341MW and 31.123MW with a total generation of 31.431MW and a total load demand of 31.123MW, the line still having the capacity to evacuate more energy. The design has proven to be valid and is sufficiently adequate. Furthermore, it encourages migration from alternating current mode to direct current mode at some point as no significant losses are observed.


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References


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