State evaluation of secondary equipment based on combination weighting and cloud model
Jie Zhou, Dongliang Nan, Jinlong Tan, Lu Zhang, Qi Zhao, Xudong Ma · 2020
In view of the complex fault mechanism of secondary device on intelligent substation, and traditional single index was difficult to mine the potential risk of the equipment, according to the data that the secondary equipment can collect, this paper proposes a secondary equipment status assessment method based on combination weighting method and cloud model. Firstly, the comprehensive state assessment indicator set of secondary device is constructed, and then weight of each index will be obtained by using combination weighting method of AHP with anti-entropy theory. Finally, membership function is replaced by cloud model for achieving evaluation of secondary equipment status. The evaluation outcome indicates that this model works well for condition assessment of intelligent substation secondary equipment.