摘要
某水电站单机容量、总装机规模及引用流量均较大,超长引水式开发且利用水头较高,上游调压室过渡过程工况压差较高,涌浪衰减较慢,水力学条件极为复杂。电站运行方式应遵循长距离引水式电站的水力瞬变规律和"安全、稳妥"的原则,为保障电站水工建筑物及电网安全运行,研究了机组在单机运行甩负荷试验及事故情况下紧急调整负荷等工况下,引发长引水隧洞调压室水位波动的周期特点,提出了根据上游调压室涌浪水位波动情况调整机组负荷的方法。
The unit capacity,total installation machine scale and reference flow of a hydropower are relatively large with ultra long water diversion development,and the utilization water head is relatively high.The pressure difference during the transition process of the upstream surge chamber is relatively high,the surge attenuation is slower,and the hydraulic conditions are extremely complex.The method of operation of the project shall follow the hydraulic transient law of hypropower projects with long distance diversion and the principle of"safety and stability".To ensure the safe operation of hydraulic structures and power grids,this article studies the periodic characteristics of water level fluctuations in the surge chamber of a long diversion tunnel caused by single unit load rejection tests and emergency load adjustment in case of accidents,proposed a method to adjust the unit load based on the fluctuation of surge water level in the upstream surge chamber.
作者
李泉
黄鑫
黄金山
LI Quan;HUANG Xin;HUANG Jinshan(Yalong River Hydropower Development Co.,Ltd.,Chengdu Sichuan 610051)
出处
《四川水力发电》
2025年第1期168-172,共5页
Sichuan Hydropower
关键词
调压室
浪涌
水位波动
Upstream surge chamber
Surge
Water level fluctuation
