基于海上轻型站的海上风电场电气系统博弈优化

GAME OPTIMIZATION OF ELECTRICAL SYSTEM OF OFFSHORE WIND FARM BASED ON OFFSHORE LIGHT STATION

随着海上风电场规模不断扩大,离岸距离变远,传统的集中式海上变电站面临安装容量过大、建设困难等问题。针对以上问题,引入一种海上轻型变电站,提出基于海上轻型变电站的海上风电场电气系统博弈优化方法。建立基于海上轻型站的电气系统全寿命周期成本模型,提出适用于轻型变电站选址的改进k-medoids聚类方法,对不同电压等级的电气系统进行优化,并基于组合权重法和混合策略对规划方案进行多方博弈评估。以江苏省某海上风电场为例进行分析,结果表明,基于海上轻型站的电气系统博弈优化方案能有效提高海上风电场电气系统的综合性能。

As the scale of offshore wind farms continues to expand and the offshore distance becomes farther,traditional centralized offshore substations are faced with the problems such as large installation capacity and construction difficulties.To solve the above problems,the offshore light substation is introduced,and a game optimization method for offshore wind farm electrical system based on offshore light substation is proposed.A life-cycle cost model of electrical system based on offshore light substation is established,an improved k-medoids clustering method applicable to the siting of light substations is proposed,the electrical system with different voltage levels is optimized,and multi-party game evaluation of the planning scheme is carried out based on combined weight method and mixed strategy.Taking an offshore wind farm in Jiangsu province as an example,the analysis results show that the game optimization scheme based on offshore light substation can effectively improve the comprehensive performance of offshore wind farm electrical system.