基于改进CRITIC熵权组合赋权法的海上风电系统规划综合评价方法

A comprehensive evaluation method for offshore wind system planning based on improved CRITIC entropy weight combination weighting method

海上风电是新能源开发利用的重要方向。海上风电系统的合理规划对系统运行经济性和安全性具有重要影响。现有海上风电系统的规划评价难以兼顾海上风电场侧电能质量与输电系统侧的运行安全,无法综合反映海上风电系统的性能。为此,分析了海上风电系统不同规划方案引起的风电场电能质量与输电系统故障特性差异,建立了海上风电场和输电系统的劣度评价指标,充分考虑指标间的差异性和关联性,进而提出了改进CRITIC熵权组合赋权法的海上风电系统TOPSIS综合评价方法,并结合某海上风电系统前期规划设计进行了应用。结果表明,所提出综合评价方法与实际相符,对于海上风电系统的规划和决策具有参考价值。

Offshore wind power is an important trend for the development and utilization of new energy.The rational planning of offshore wind power systems has an important impact on the operating economy and safety of the system.The planning and evaluation of the existing offshore wind power system is difficult to balance the power quality of the offshore wind farm side and the operational safety of the transmission system side,and cannot comprehensively reflect the performance of the offshore wind power system.Therefore,the differences between the power quality of wind farms and the fault characteristics of transmission systems caused by different planning schemes of offshore wind power systems are analyzed,the inferior evaluation indicators of offshore wind farms and transmission systems are established,and the differences and correlations between the indicators are fully considered,and then a TOPSIS comprehensive evaluation method of offshore wind power system is proposed to improve the CRITIC entropy weight combination weighting method,and is practical in combination with the early planning and design of an offshore wind power system.The results show that the proposed comprehensive evaluation method is consistent with the actual situation,and has reference value for the planning and decision-making of offshore wind power system.