| Coordinative Control based on Energy Management System (EMS) and Dynamic Pricing (DP) is proposed as a supply-demand control strategy in distributed energy systems in this paper. Each customer can perform economical operation of dispersed generation and storage systems independently from distributed energy systems using EMS. Furthermore, a power company can contribute to an aim of the whole power system such as maintenance of the supply-demand balance by indirect control using DP. Therefore, this strategy has both merits of customers and a power company such as reduction of electric rate and load leveling. The effectiveness of the coordinative control for a distributed energy system, which has load, battery, photovoltaics and fuel cells as composition elements of a customer, is verified. |