新疆某水电站调节保证计算  

Regulation Guarantee Calculation of a Hydropower Station in Xinjiang

作　　者：冯小燕 周暄礼 FENG Xiaoyan;ZHOU Xuanli(CAMCE WHU Design & Research Co., Ltd., Wuhan 430000, China)

机构地区：[1]中工武大设计研究有限公司,湖北武汉430000

出　　处：《水电与新能源》2020年第12期63-65,共3页Hydropower and New Energy

摘　　要：根据新疆某水电站设计需要,对选定机组各个过渡过程的主要工况进行调节保证计算,选定优化后的导叶关闭规律及关闭时间计算分析表明,设计均满足规范要求,但隧洞上平段末端最小压力和尾水管进口最小压力均逼近临界值。为留有充足的安全余地,工程实施中可适当降低机组安装高程,改善过渡过程的各项指标,以确保机组投入运行的安全与稳定。According to the design requirements of a hydropower station in Xinjiang,regulation guarantee calculations are carried out for the main working conditions of each transition process of the selected unit,and the optimized guide vane closing law and closing time are determined.The results show that the design meets the specification requirements.However,the minimum pressure at the end of the upper horizontal section of the tunnel and the minimum pressure at the inlet of the draft tube are close to the critical value.To keep sufficient safety margins,the installation elevation of the unit can be appropriately reduced in the practical implementation of the project to improve the indexes of the transition processes and to ensure the operation safety and stability of the unit.

关 键 词：调节保证 导叶关闭 分析 检验 

分 类 号：TM622[电气工程—电力系统及自动化]