Voltage Control in Distribution System with Reactive Power Dispatch

The reactive power has been compensated using the capacitor banks, synchronous condenser, tap changers and voltage regulators etc, in the earlier distribution system. The optimal operation of the distribution network operator is comprised of the better voltage profile at each node, minimum power loss and higher cost of energy saving. The flat voltage profile is therefore expected to distribution system at each node, minimum power loss, the maximum cost of saving and maximum efficiency. One of the operations is to reactive power compensating devices which aims to manage the voltage control and reactive power control for minimisation of power loss.

The power loss has been reduced using the capacitor bank for power factor improvement also [1]. The active and reactive power has been compensated using the distribution generations and capacitor bank [2]. The meta-heuristic techniques are used to solve the reactive power dispatch problems [3]. In this context, the two-archive multi-objective grey wolf optimizer [4], modified differential evolution technique [5], multi-objective strategy [6], a combined swarming algorithm [7], gravitational search algorithm [8], learning based technique [9] etc., have been used for the reactive power dispatch.