人民长江2025，Vol.56Issue(4)：206-212,7.DOI:10.16232/j.cnki.1001-4179.2025.04.028
基于三峡-葛洲坝水量平衡的机组发电流量修正
Correction of unit power generation flow based on inflow-outflow water balance of Three Gorges and Gezhouba Reservoirs
摘要
Abstract
The calculated total outflow from Gezhouba Reservoir substantially exceeds the discharge released by Three Gorges Reservoir.This volume discrepancy surpasses the natural inflow contribution from the inter-reservoir reach,necessitating immedi-ate outflow recalibration.To accurately calculate outflow of Gezhouba Reservoir and maintain hydrological equilibrium between the Three Gorges-Gezhouba cascade reservoirs,we employed the SCE-UA optimization algorithm with the inflow-outflow water balance as the calibration criterion.Seasonally varying,head-dependent correction coefficients were developed to rectify turbine-specific discharge allocations.Flood season results demonstrated a reduction in mean absolute discharge deviation(MAD)from 1 720 to 571 m3/s,with monthly volume deviations decreasing from 4.318 to 0.109 billion m3.Corresponding non-flood season improvements showed MAD reduction from 1 650 to 745 m3/s and volume deviation decreased from 452 to 253 million m3.The water balance-based discharge correction framework significantly enhanced outflow quantification accuracy,effectively mitigated systemic water balance errors,and provided reliable hydrologic data for cascade reservoir operations.关键词
发电流量修正/水量平衡/出库流量/SCE-UA算法/水轮机机组特性曲线/三峡水库/葛洲坝水库/梯级水电站Key words
correction of power generation flow/water balance/outflow discharge/SCE-UA algorithm/characteristic curve of water turbine unit/Three Gorges Reservoir/Gezhouba Reservoir/cascade hydropower station分类
建筑与水利引用本文复制引用
张玮,赵辉,刘攀,黄康迪,刘园,鲍一凡..基于三峡-葛洲坝水量平衡的机组发电流量修正[J].人民长江,2025,56(4):206-212,7.基金项目
中国长江电力股份有限公司项目(Z242302048) （Z242302048）
国家重点研发计划项目(2022YFC3202804) （2022YFC3202804）
