ENERGY STORAGE SYSTEM FOR BALANCING LOAD OF POWER GRID

摘要

An energy storage system for balancing the load of a power grid (6) comprises: a controller (3), a plurality of energy storage tanks (1) connected in parallel, and a plurality of controllable switches (2) connected to the plurality of energy storage tanks (1) respectively, in which the controller (3) is configured to detect a frequency and a phase of the power grid (6) and thereby to control the controllable switches (2) to charge the energy storage tanks (1) using the power from the power grid (6) or to input the power from the energy storage tanks (1) to the power grid (6) in accordance with the frequency and the phase of the power grid (6) so as to balance the load of the power grid (6). The energy storage system may balance the load of the power grid (6) so that the power consuming demand can be satisfied during the peak time.