Transformer insulating-paper deterioration evaluation method of considering running temperature influences

The invention relates to the fields of power systems and automation thereof, and particularly to a transformer insulating-paper deterioration evaluation method of considering running temperature influences. Three-dimensional trapezoidal fuzzy sets of transformer running temperature data are constructed; data of paper deterioration feature classes are fuzzified, membership functions are constructed, and three-dimensional trapezoidal fuzzy sets of the paper degradation feature classes are constructed; paper test data are fuzzified, membership functions are constructed, and three-dimensional trapezoidal fuzzy sets of paper test classes are constructed; and similarity functions between the probability fuzzy-sets of the test classes and the feature classes are constructed. According to the method, a theory of the three-dimensional trapezoidal probability fuzzy-sets is adopted for processing and analysis for random and fuzzy uncertainty parameters involved in distribution-transformer insulating-paper deterioration