A Multi-objective Optimization Method for Utilizing Seawater Desalination Load to Consume Offshore Wind Power

With the increasing capacity of offshore wind power connected to power grid, it is an urgent problem to consume offshore wind power nearby and reduce the capacity of delivery channel. At the same time, the seawater desalination load with time-varying and continuous regulation is connected with offshore wind power nearby, which becomes an important resource to consume offshore wind power. Therefore, this paper proposes a multi-objective optimization method to consume offshore wind power by utilizing the adjustable characteristics of seawater desalination load. Firstly, the operation traits of offshore wind power and the regulation traits of seawater desalination load are analyzed. Based on this, the mechanism of seawater desalination load to consume offshore wind power is studied, and a multi-objective optimization model with the objective of maximum wind energy absorption and minimum system operating cost is set up. Then, the solution method of the optimization model based on multi-objective difference algorithm is proposed. Finally, the effectiveness of the proposed optimization control method is verified by numerical simulation.