基于改进模糊C-均值聚类的陆上风电场集电线路回路划分与拓扑结构优化OACSTPCD

[Objectives]Driven by the dual carbon goal and the accelerated transformation of China's energy structure,the scale of the wind power industry continues to grow rapidly,and there is an urgent need to reduce costs and increase efficiency to cope with the pressure of grid parity.The cost of collector lines accounts for a relatively large proportion of investment,and there is considerable space for optimization.In order to reduce the investment cost,an improved fuzzy C-means(FCM)clustering algorithm was proposed.[Methods]The improved FCM clustering algorithm was used to divide the collector circuit of onshore wind farm.The algorithm comprehensively considered the azimuth angle and the Euclidean distance to ensure that the lines between the circuits were not crossed,and the adjacent units were gathered to the same circuit.The correction factor of the distance from the machine position to the cluster center was introduced,and the circuit capacity was limited by adjusting the distance correction factor.On the basis of circuit division,the dynamic Prim algorithm was used to optimize the line selection of each circuit.Finally,the effectiveness of the method was verified by an example of an onshore wind farm.[Results]Compared with the clustering method only considering the azimuth angle,the improved FCM algorithm considering azimuth angle and spacing has better optimization effect.The total cost of single-circuit and double-circuit collection lines is reduced by 2.6%and 5.4%,respectively.[Conclusions]The proposed algorithm can effectively reduce the total cost of collector lines,and has certain application value.It can provide a reference for the design of wind farm collector lines.