人民长江2024，Vol.55Issue(1)：242-246,5.DOI:10.16232/j.cnki.1001-4179.2024.01.034
水头衔接的梯级电站水头分配问题研究
Water-head allocation in cascade hydropower stations with water-head connection
摘要
Abstract
For cascade hydropower stations with water-head connection,raising the water level of the downstream hydropower station in the case of unchanged total water head of two stations may increase the risk of water abandonment,and change the uti-lized head of the two cascade hydropower stations which results in changing their revenue.To research the effect of raising water level of downstream hydropower station on cascade generation revenue,the revenue of cascade stations before and after raising the water level of the downstream station was calculated.The coefficient of water consumption increment(CWI)was proposed.Then considering the loss of water abandonment,the effect of changing head allocation on generation revenue of cascade stations was re-searched.This study presented a criterion that whether changing water-head allocation is beneficial to increasing revenue of cas-cade stations.A case study of the Qingjiang River cascade hydropower stations indicated that due to the differences in electricity prices and comprehensive efficiency coefficients between upstream and downstream hydropower stations,when the criterion is sat-isfied,appropriately increasing the water level of the downstream hydropower station may increase the overall power generation rev-enue of cascades.The research results can provide theoretic guidance for cascade hydropower stations to scientifically control water level,balance risk of water abandonment and water-head benefit,and increase overall power generation revenue.关键词
梯级电站/水头衔接/水头分配/发电用水增量系数/弃水风险/经济运行Key words
cascade hydropower stations/water-head connection/water-head allocation/coefficient of water consumption in-crement/water abandonment risk/economic operation分类
建筑与水利引用本文复制引用
张子平,许江松,黄迪..水头衔接的梯级电站水头分配问题研究[J].人民长江,2024,55(1):242-246,5.基金项目
中国长江三峡集团有限公司科研项目(0704188) （0704188）
国家重点研发计划项目(2022YFC3002702) （2022YFC3002702）
