基于长引水明渠水电站水力过渡过程的运行调度研究  

Operation of Hydropower Station with Long Diversion Channel Based on the Calculation of Transient Process

作　　者：崔伟杰 姚右文 吴旭敏 李高会 CUI Wei-jie;YAO You-wen;WU Xu-min;LI Gao-hui(POWERCHINA HUADONG Engineering Corporation Limited,Hangzhou 311122,China)

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,浙江杭州311122

出　　处：《水电能源科学》2021年第10期81-84,147,共5页Water Resources and Power

摘　　要：明渠非恒定流和有压管道水锤差异较大,导致长引水明渠水电站的过渡过程状态较复杂,特别是增负荷工况下,由于压力前池容积有限、长引水明渠波速较慢等原因,易出现前池或明渠低于最低运行水位,影响机组正常运行的情况,因此需要研究长引水明渠水电站的运行调度策略。以某长引水明渠水电站水力过渡过程为例,以增负荷时刻、压力前池水位等参数为基础,对电站的增负荷运行调度规则进行分析和总结,为类似工程提供了参考。It is different between the unsteady flow in open channel and the water hammer in the penstock,which leads to the complicated transition process of hydropower station with long diversion channel.Especially,under the load start-up condition,the water level of the forebay or open channel may be lower than the minimum operating water level because of the limited volume of forebay and the slow wave velocity of long diversion channel,which affects the normal operation of the unit.Therefore,it is necessary to study the operation strategy of these hydropower stations.This paper is based on the time of increasing load and the water level of forebay,the dispatching rules of increasing load operation are analyzed and summarized by using an actual hydropower station parameter,which provides reference for similar projects.

关 键 词：运行调度 明渠 水电站 过渡过程 

分 类 号：TV74[水利工程—水利水电工程]