An evaluation strategy for relay protection status based on the cloud model

After the relay protection secondary equipment is put into operation for a period of time, it will be affected by aging, faults, and other factors, resulting in the gradual decline of the health state of the equipment. Therefore, considering the uncertainty of the influencing factors of equipment aging fault, a relay protection state evaluation method based on the cloud model is proposed. The factors affecting the real-time health state of equipment were analysed, the evaluation indexes were selected, and the weights of each index were calculated. Considering the randomness and fuzziness of the influence factors, a comprehensive evaluation model was established based on boundary fuzzy processing and cloud parameter calculation. Finally, an example was given to verify the rationality and effectiveness of the proposed algorithm.