| 摘要 |
<p>The invention relates to an energy storage system (1) which comprises one or more local energy storage installations (4, 41, 42, 43) and to a method for operating said energy storage system (1). The local energy storage installations (4, 41, 42, 43) are connected to a non-local power grid (5) and/or each is connected to one or more local power grids (6, 61, 62, 63, 64) and comprise at least one local control unit (41-1, 42-1, 43-1) which is provided at least for controlling the respective energy storage installation (41, 42, 43) for stationary control and system tasks (LRS) for the one or more respective local power grids (6, 61, 62, 63, 64). The energy storage system (1) further comprises a central control unit (2) that is connected to the respective local control units (41-1, 42-1, 43-1) via a communications network (3) and that is provided for controlling (SNL) the intake (En) of energy from the one or more local energy storage installations (4, 41, 42, 43) and the output (Ep) of energy to the non-local power grid (5). The central control unit (2) is equipped to dispose of all components of the local storage capacities (LSKg) and of the local output (LLg) of the one or more energy storage installations (4, 41, 42, 43) for non-stationary control and system tasks (NLRS) in the non-local power grid (5) that were transmitted to the central control unit (2) by the respective local control units (41-1, 42-1, 43-1) via the communications network (3) as not being required for the stationary control and system tasks (LRS). The invention thus provides an effective energy storage system that permits simultaneous improvement of local network quality and non-local positive and negative energy provision.</p> |
