Transformer status assessment based on cooperative game and cloud model
Ya Xu · Dianli zidonghua shebei · 2015
Since the fuzziness and randomness of evaluation index for transformer status assessment should be considered,a transformer status assessment method based on the cooperative game method and cloud model is proposed,which establishes an evaluation index system for transformer status assessment,adopts the cooperative game method to obtain the combination weight for each index,uses the variable weights formula to modify the weights,applies the cloud model to obtain the membership degree of quantitative index to each transformer status grade,and uses the hierarchical evaluation method to assess the transformer status.Results of case analysis show its assessment result is closer to the actual transformer status,verifying its correctness and feasibility.