METHOD FOR OPERATING AN ENERGY STORING ENERGY GENERATING PLANT

摘要

The invention relates to a storage power station (S), for example an air storage plant, comprising a compressor unit (V), a turbine unit (T), and a storage volume (100). Said storage power station is operated according to a special mode of operation which enables it to react as quickly as possible to changes in the load requirements. According to the invention, rapid changes in the load requirements are compensated by regulating the power absorption of the compressor unit (V), resulting in a variable net power output at the same time as a constant power output of the turbine unit (T). The power of the compressor unit can be regulated faster than a regulation of the power engine, by approximately one order of magnitude. In extreme cases, the compressor unit can be simply switched off, whereby within seconds the drive power thereof is released for an electricity network. The turbine unit can meanwhile continue to be normally operated and slowly follow the power requirement, reducing the load on the turbine. A storage power station operated according to the invention is outstandingly suitable for frequency support and for covering rapid load ramps in an electricity network.