In order to solve the problem of safe operation caused by various types,complex structure,wide distribution and se-rious aging of equipment and facilities in small and medium-sized hydropower plants in China,an improved safety discrimi-nant extension model of key equipment and facilities in small and medium hydropower plants was established based on the set-pair theory and matter-element extension method. The variable weight theory and set-pair analysis were used to determine the membership degree of integrated extension connection of the four types of equipment such as the units and ancillary equip-ment,electrical equipment,auxiliary equipment and management facilities in the hydropower plants. The safety level of key equipment and facilities hydropower plantswas determined by the principle of maximum integrated extension connection mem-bership degree,and the discriminant model was applied to the safety discrimination of key equipment and facilities in a pilot hydropower plant. The results show that the key equipment and facilities in the hydropower plant are running well as a whole,and the safety level is high. Among them,the safety levels of the unit and ancillary equipment,electrical equipment and man-agement facilities are in grade Ⅰ,and the safety level of auxiliary equipment is in grade Ⅱ. The model can optimize the weight of the key components of equipment and facilities,and can also reflect the trend of possible transformation of the safety level of equipment and facilities,which provides a reference for the safety discriminant analysis of the equipment and facilities in the hydropower plants.
small and medium hydropower plantskey equipment and facilitiessafety discriminantset pair-extension cou-pled model
维普
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