| 摘要 |
An energy storage and recovery system and method wherein a wind turbine 3 having a generator 40, that may be incompatible with the grid, generates electricity at a predetermined frequency below 45Hz, a gas compressor 45 receives electricity from the wind turbine through a drive motor 43, at the predetermined frequency, to compress a gas that is stored in a pressure vessel 35, the gas being suitable for expansion in an expander 47 to drive generation 49 of electricity at a grid frequency of 50Hz. The predetermined frequency may be below 15Hz, it may be direct current (DC) substantially 0Hz and may correspond to a predetermined rotational frequency of the wind turbine. The pressure vessel 35 may be a buoyancy chamber of an off-shore turbine or an air-tight container located underwater. The expander 47 may include a combustion system or a heat exchanger, the heat exchanger may use sea water or a working fluid stored in a working fluid reserve. |
