State Evaluation of Rotating Parts of Generators of Pumped Storage Unit based on Combined Weighted Cloud Model
In order to effectively evaluate the rotating part of pumped storage unit by using medium and long-term low frequency data,and to overcome the problems of fuzziness and randomness in the process of expert evaluation,a state evaluation method of the rotating part of pumped storage unit based on the combined weighted cloud model was proposed.Firstly,the state evaluation index system of the rotating part of the generator is constructed by the analytic hierarchy process and the index weights of the bottom and middle layers are calculated by the entropy weight method.Secondly,the evaluation cloud is generated by calculating the parameters of the cloud model,and compared with the basic evaluation cloud,the whole evaluation cloud model of the rotating part of the generator is obtained.The results show that the state evaluation method proposed in this paper can effectively reflect the deterioration trend of the underlying indicators,and simply and intuitively evaluate the whole state of the rotating part of the generator,which provides a reference for promoting the pumping and storage unit from planned maintenance to state maintenance.
pumped storagerotating part of the generatorcombined weightcloud modelstate evaluation
NETL
NSTL
万方数据
