Economic Benefits for Reactive Power Compensation as Ancillary Service through Multi Units Based Electrical System

In available studies of multi units based hybrid electrical system, technical and operational issues are well taken by several researchers to describe their benefits over single unit based hybrid electrical system. However, economic issues are almost not attempted in available literature for the same. To be precise, economic investigations about the payment towards hybrid compensation cost as one of the important ancillary service to control the terminal voltage are not focused yet and so, the same are being investigated in this work. For this work, reactive power and compensation cost are being evaluated using hybrid compensation of static and dynamic compensators in wind diesel based hybrid electrical system developed for multi units as well as single unit system. The main contributions of this paper are; (i) optimization of reactive power quantity through fixed capacitor and STATCOM in presence of composite load, (ii) compensation cost estimation for changes in load and input, and (iii) comparison of economic benefits for reactive power compensation as ancillary service through multi units and single units based system of same capacity.