Abstract
This paper presents an alternative approach of Network Structural Characteristics Theory (NSCT) for solving
reactive power allocation problem within a power network. The approach is explored to establish the amount reactive
power each generator is delivering to the loads within the network. The theoretical background of NSCT based on
fundamental circuit theory is presented. The problem is then formulated as a linear combination of the network
parameters and the network topology from the circuit theory point of view. This linear formulation eliminates the
challenges encountered in the traditional approach which is iterative dependent. The effectiveness of the approach is
verified using a simple 3-bus and an equivalent 10-bus of the Southern Indian network. The results obtained are
compared with that obtained from the existing approaches. The approach of NSCT provides solution to the problem
quickly (in a single computational step) without carrying out the repetitive and time-consuming power-flow analysis.
The results obtained show the superiority of NSCT over the existing iterative-based approaches.