Generator set equipment health degree index comprehensive evaluation method and system

The invention discloses a comprehensive evaluation method and system for health degree indexes of generator set equipment. According to the technical scheme, historical data of all state variables of the same device serve as input, a clustering method is adopted, the data are classified, and different types of working states of the device are screened out; establishing a rule base for each type of working states obtained by clustering to add or subtract each variable; the number of the variable addition and subtraction scores is judged by judging which working state the data at a certain moment belongs to and judging whether the data exceed the upper and lower boundaries of each rule or not; outputting the importance degree of each variable, and determining the weight of each variable during health degree fusion in combination with a preset health degree weight coefficient; and through the variable scores and in combination with weight weighted summation of each variable during health degree fusion, obtaining