Design of power plant capacity in DC hybrid system and microgrid

Purpose – The purpose of this paper is to present the simulation method of power plants and storage system capacity design.Design/methodology/approach – Owing to solar irradiation, wind speed and water flow are highly and randomly changeable, time variation of the signals needs to be taken into consideration as well as some features of the power plants and storage system. A Matlab/Simulink model of the given system – DC microgrid has been developed. The model allows simulation of a few years static simulations of the power balance. Hence, it can be used to size the plants.Findings – An effective method of the power system design has been developed. It allows sizing the plants taking into consideration resources and load profiles, year changes in profiles and future development of the system. The storage system can be optimized to avoid high power unbalance and power cost increasing.Research limitations/implications – The model describes only static power behaviour of the modelled power system. It does not...