Research on energy storage system capacity allocation to improve wind power integration capability

For large-scale wind power access to the grid based on thermal power peaking, the structure of power and peaking capability restrict the accessing of large-scale wind power. Large-scale energy storage system can achieve load space-time translation and improve security and economy of power grid operation. In this paper, considering factors of storage cost, wind power investment cost and wind power revenue, a storage capacity optimal allocation method by using large-scale storage is presented to improve the grid ability of integrating wind power. This method is applied in simulations where a typical power load of a province in 2010 is considered. The results verify the effectiveness and feasibility of the proposed method.