Further Design Research of Francis Turbine Wheel Under Multi-energy Complementation Condition
In order to meet the multi-energy complementary requirements of the new power system,this paper takes the multi-energy complementary transformation of the turbine of Lijiaxia Hydropower Station as the research object,carries out a deepening design study on the conventional hydropower station units in the multi-energy complementary system,puts forward the deepening design concept of the turbine transformation,and expounds the calculation method of the unit's operation weighting factor under the requirements of the multi-energy complementary system.The hydraulic design objective of the further design of turbine transformation is put forward,which provides direction for the further design of turbine transformation.According to the hydraulic model test of the turbine after further design,the hydraulic model rated efficiency and weighted average efficiency of the turbine after further design are higher than those of the turbine in the earlier stage(without further design)when cavitation,pressure pulsation and blade stress levels are the same.After further design,the turbine not only meets the requirements of the new power system on the power load regulation capacity of hydropower station,but also the hydraulic performance of the unit has been significantly improved,which can provide reference for the transformation design of similar hydropower stations.
multi-energy complementationfull loadtransformation of Francis turbinefurther designLijiaxia hydroelectric power plant
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