A Collaborative Operation Study of Hybrid New Energy Type Dispersed Power Supply System

Collaborative operations of a hybrid dispersed power supply system using new energies such as photovoltaic power (PV) and wind power (WP), fuel cell (FC) as well as electric double layer capacitor (EDLC) are studied in this paper. FC is used to enable stable collaborative operation of this dispersed power supply in autonomous mode. Since the output of those natural energies is greatly variable, and FC cannot follow the rapid change of the load, then energy storages are required to operate this dispersed power supply in autonomous mode. As the energy storage, EDLC is used to enable rapid and deep charge/discharge operations. The collaborative operation methods were devised to minimize the EDLC capacity for the given FC rating, and the EDLC capacity was investigated by simulations using MATLAB/Simulink software