Coordinated operation of wind farm and water desalination plant in energy and auxiliary services market

Both wind farms and reverse osmosis (RO) desalination plants exhibit a degree of controllability, and their coordinated participation in power market has the potential to reduce costs or enhance profits. However, due to their historical independence, the coordinated operation of these facilities in the energy and frequency regulation (FR) markets presents significant challenges. To reduce coordinated operating costs and optimize resource allocation between wind farms and RO desalination plants, a coordinated operation model is proposed for their joint participation in multi-type power markets. Additionally, a new profit distribution approach based on distribution coefficient according to the contributions of both participants is proposed. The wind farm is considered as a partially controllable participant capable of participating in power market. It jointly engages in both energy and FR markets alongside a RO desalination plant. The two are treated as an integrated system that fully accounts for the energy exchange between them. Through a case study, the results convincingly demonstrate the feasibility of their joint market participation, effectively utilizing wind energy to engage in power market while enhancing overall profits. When both participate jointly in the energy market and the frequency regulation ancillary service market, overall revenue can be increased by 41.6%, and curtailed wind power generation can be reduced by 80.14%.