Hydraulic Performance Optimization of Bidirectional Tidal Power Turbine

This paper analyzed the relation between tidal level and reservoir area water-head of Jiangxia experimental tidal power plant,which is a bidirectional station with a reservoir,and then concludes the change pattern of the tidal level and operating parameters.Through 3-D numerical simulation,the hydraulic characteristics of the bidirectional bulb turbine under multiple operating conditions are analyzed.And based on this optimization design of a new bidirectional bulb turbine with the fixed flow passage size,including parameter (diameter ratio of runner to bulb,guide vane angle and guide vane/runner blade shape) redesign,is conducted. Key achievement of model units after model acceptance test is also available.The new type unit in Jiangxia tidal power plant,unit #6,in which the research outcome has been directly utilized, achieved stable operating for both forward and reversed generation,pumping and draw-off. Moreover,comparing with other units equipped,there is an over 6% efficiency increase for both forward and reversed generation.Besides,turbine general performance has also been dramatically improved.
Tidal power plant Bidirectional operation Generation and pumping Hydraulic characteristics Optimization design
WANG Zhengwei YANG Xiaoshen XIAO Yexiang
Department of Thermal Engineering,Tsinghua University,Beijing 100084,China China Longyuan electric power group,China Guodian,Beijing 100036,China
国际会议
哈尔滨
英文
115-123
2009-09-17(万方平台首次上网日期,不代表论文的发表时间)