额定转速428.6 rpm的水泵水轮机模型试验参数对比和分析  

Comparison and Analysis of Model Test Parameters of Pump Turbine with Rated Speed of 428.6rpm

作　　者：田新文 TIAN Xinwen(Pumped Storage Project Development Office of Shenzhen Energy Group Co.,Ltd.,Shenzhen 518048,China)

机构地区：[1]深圳能源集团抽水蓄能项目开发办公室,广东深圳518048

出　　处：《广东水利水电》2025年第4期31-35,共5页Guangdong Water Resources and Hydropower

摘　　要：我国已建和在建了多座400 m水头段的抽水蓄能电站,单机容量多为300 WM,额定转速为428.6 rpm。该文通过对4座抽水蓄能电站水泵水轮机模型试验结果的对比和分析,可认定电站C的各参数指标具有先进性;研究成果表明:为参数匹配更加合理,不宜过度追求额定点效率和无叶区压力脉动指标,不宜提高驼峰余量和S区安全余量指标,满足稳定运行要求即可。文中提出的各指标的招标推荐值对后续采用此转速的项目招标具有参考价值。China has built or under construction a number of pumped storage power stations with water head of 400 meters section,single-unit capacity of 300WM and rated speed of 428.6rpm.In this paper,the pump turbine model test in four pumped storage power stations are compared and analyzed,the result shows that each parameter index of power station C is advanced.In order to make parameter matching more reasonable,it is suggested that it is not appropriate to over-pursue the rated point efficiency and the pressure pulsation index in the leafless zone,and it is not appropriate to raise the hump margin and the safety margin index in the S zone,so as to meet the requirements of stable operation.The recommended bidding parameter of each index proposed in this paper can provide reference for the subsequent similar projects with this speed in bidding.

关 键 词：额定转速 空化系数 压力脉动 安全余量 飞逸转速 最优效率 

分 类 号：TK73[交通运输工程—轮机工程] TV743[动力工程及工程热物理—流体机械及工程]