DEVELOPMENT OF DYNAMIC LOAD ALLOCATION SCHEME UNDER LIMITED GENERATION FOR OPTIMAL POWER SUPPLY OF NIGERIAN 330 kV TRANSMISSION GRID

Abstract

With the progressive growth of load demand, it has become more challenging to manage load system performance over different time horizon via fixed load allocation approach leading to enormous power loss. The reason is that power loss increases with fixed load allocation and active power loss directly impacts system economics. This research work aimed at minimizing power losses in a transmission system thereby improving the quality and reliability of power supply. In this study, a new load allocation model is presented to meet the increasing load demand with minimal active power loss. First, the bulk power network was partitioned into three areas, Western, Southern and Northern area respectively. Specific distribution indices and weighting factors were then assigned to the partitioned bulk power network. The partitioning became necessary to prioritize each partitioned cluster and investigate their performance in relation to one another. The performance of the network was assessed under a determined percentage load increase and generator contingency based on power flow simulation using a proprietary software known as NEPLAN. The effectiveness of the method was validated on the Nigerian 39-bus bulk power network. The selected model resulted to a percentage decrease of up to 59.5% in active power loss on the modelled network