| 摘要 |
The present invention relates to a system and a method for operating energy storage systems (ESS) in accordance with changes in a power grid frequency. The system for operating the ESSs in accordance with changes in a power grid frequency is characterized in that an integrated operation server operates the ESSs individually or by each group via Ethernet for each ESS to react to the changes in the power grid frequency so that frequency smoothing can be achieved, and for each ESS to react to demand management in each area so that peak power management and reduction of energy costs in each area can be achieved. According to the present invention, it is possible to manage demands and correspond to changes in frequency by integrating small-scale energy storage systems based on customers. Especially, it is possible to improve stability by operations of the energy storage systems accordance with changes in a power grid frequency and to improve efficiency of a power generating fuel through frequency regulation using the energy storage systems. In addition, an irregular output from new renewable energy sources following increase of the new renewable energy sources can be stabilized to satisfy electric power for the customers by utilizing the energy storage systems. Moreover, the system of the present invention can be used to reduce a waste of electric power caused by connection to a customer′s own power usage management system or UPS, and to perform as a power generation source for the energy storage systems. |
