A techno-economic evaluation method for wind farm renovation based on the combination assignment method

With the continuous emergence of new technologies in wind farms, in order to improve the performance of wind turbines, it is necessary to carry out technological transformation of wind turbines that have been put into operation and are relatively backward in technology. This paper proposes a technical and economic evaluation method of wind farm renovation based on the combination assignment method. Firstly, the evaluation index system of wind power project is designed from the two dimensions of wind turbine operation efficiency and economy, secondly, the combination of hierarchical analysis method and entropy value method is used to determine the weight of each index, and then the renovation program is evaluated based on the comprehensive evaluation model, and finally, the feasibility and validity of the proposed evaluation method is shown through empirical analysis.