Abstract
There are many types of tidal current power generation devices, and it is necessary to make comprehensive evaluation of tidal current power generation devices in order to provide valuable reference for the improvement of their performance indexes. On the basis of the analysis of the tidal current power generation device performance indexes, the hierarchical model for comprehensive evaluation of device performance is given in this paper. By normalizing the membership matrix elements based on fuzzy comprehensive evaluation model, all the values of the matrix elements are restrained in the range of 0.0 to 1.0, hence the complexity of the calculations is reduced. Vector similarity is used to determine the expert weights which reflect the knowledge and experience of the experts. This paper presents an improved method for rank correlation analysis, and calculates the comprehensive weight value and the final evaluation results of tidal current power generation devices. The presented method improves the credibility of the evaluation. In the end, measured data of two units of tidal current power generation devices are evaluated in the paper, and the effectiveness of the presented method is verified.
Highlights
Along with the advancement of science and technology and the development of social industrialization, the problem of energy shortage is becoming more and more serious
The ocean renewable energy project fund has supported a series of projects about offshore testing site construction of wave and tidal current energy utilization, which will carry forward the development of ocean energy generation technology in China [4]
The study on the comprehensive evaluation method for tidal current power generation device considered an important part of offshore testing site construction, offering valuable reference for improving the performance of tidal current power generation device
Summary
Along with the advancement of science and technology and the development of social industrialization, the problem of energy shortage is becoming more and more serious. Grey integrative evaluation describes the strength, magnitude, and sequence of relationship between indexes with grey relational degree It manages to solve the index quantification problem and eliminate the subjective impact, the weight distribution influences the final results directly [9]. It can be seen from the above introduction that simplex comprehensive evaluation method can hardly assure the reliability of the evaluation results. There is few study on comprehensive evaluation method for the performance of tidal current power generation device in China, and the evaluation of the performance indexes is made mainly on the basis of setting parameters, measured data, and expert experience. To improve rank correlation analysis, vector similarity is used to determine the expert weight, the comprehensive weight value with multiple indexes are calculated and the final assessment results are synthesized
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
