降低抽蓄电站闸门井最高涌浪方法的对比分析  

Comparative Analysis of Methods for Reducing the Maximum Surge of Gate Well of Pumped Storage Power Station

作　　者：杜征宇 李进 曾剑辉 DU Zhengyu;LI Jin;ZENG Jianhui(Central Southern China Electric Power Design Institute Co.,Ltd.,Hubei 430071,China)

机构地区：[1]中国电力工程顾问集团中南电力设计院有限公司,湖北武汉430071

出　　处：《电力勘测设计》2023年第S02期210-216,共7页Electric Power Survey & Design

摘　　要：抽水蓄能电站库区到闸门井的距离较长,在机组甩负荷时,闸门井内产生的涌浪高度较大,过高的闸门井会影响闸门井与周围建筑物的美观。本文将结合工程实例,借助一维水锤计算,着重对闸门井向库区偏移和采用溢流式闸门井两种降低闸门井最高涌浪的方法进行计算分析。发现两种方法均能有效降低闸门井最高涌浪高度值,前者对地形地质条件要求较高,后者对工艺要求较大。而相较于闸门井水位的控制标准,采用溢流式闸门井方案时的下降作用更为明显,同时能节省工程投资。The distance from the reservoir area of pumped storage power station to the gate well is long,and the surge height generated in the gate well is large when the unit abandons the load,and too high gate well will affect the beauty of the gate well and the surrounding buildings.This paper will combine the engineering example and calculate by using one-dimensional water hammer.The calculation and analysis of the migration of gate well to reservoir area and the method of using overflow gate well to reduce the maximum surge height of gate well are analyzed,and it is found that both methods can effectively reduce the maximum surge height of gate well.The former has higher requirements for terrain and geological conditions,while the latter has greater requirements for technology.Compared with the control standard of the water level of the gate well,the descending effect of the overflow gate well scheme is more obvious,and the project investment can be saved.

关 键 词：闸门井涌浪 抽水蓄能电站 数值模拟 

分 类 号：TM612[电气工程—电力系统及自动化]