Article(id=1207271184450798447, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1207271180105499439, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2025.20241784, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1726675200000, receivedDateStr=2024-09-19, revisedDate=1732032000000, revisedDateStr=2024-11-20, acceptedDate=null, acceptedDateStr=null, onlineDate=1765765480387, onlineDateStr=2025-12-15, pubDate=1758729600000, pubDateStr=2025-09-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1765765480387, onlineIssueDateStr=2025-12-15, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1765765480387, creator=13701087609, updateTime=1765765480387, updator=13701087609, issue=Issue{id=1207271180105499439, tenantId=1146029695717560320, journalId=1205116964453384197, year='2025', volume='43', issue='9', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1765765479351, creator=13701087609, updateTime=1765765681303, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1207272027254247478, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1207271180105499439, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1207272027254247479, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1207271180105499439, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=203, endPage=207, ext={EN=ArticleExt(id=1207271184723428219, articleId=1207271184450798447, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Research on Water Level Prediction of Downstream Giant Hydropower Plant Under Backwater Effect, columnId=null, journalTitle=Water Resources and Power, columnName=null, runingTitle=null, highlight=null, articleAbstract=
The tailwater level of hydropower station is a critical parameter for calculating the unit's output. When influenced by the downstream reservoir's backwater effect, discrepancies often arise between the designed tailwater curve and the actual observed values, leading to increased errors in the output-flow calculations. Utilizing the latest historical observation data, this study explores the relationship between the tailwater level of BHT Hydropower Station, its discharge, and the water level of the downstream XLD Reservoir. A Bayesian optimized long short-term memory (BO-LSTM) prediction model is developed based on multi-scenario analysis. The applied effect is analyzed under conditions of peak load and flood discharge. The results indicate that when the water level of XLD exceeds 585 meters, the tailwater level of BHT Hydropower Station is significantly influenced. Compared to the nonlinear curve fitting method, the BO-LSTM model based multi-scenario analysis demonstrates a substantial improvement in accuracy, with an average absolute error (MMAE) reduced by 68.1%. The BO-LSTM model more accurately captures the fluctuations and changes in water levels under various operating conditions. The research results have important significant for refined operation of hydropower stations.
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水电站的尾水水位是计算机组出力的重要参数,当存在下游水库顶托影响时,电站尾水的设计曲线与实际观测值往往存在较大误差,增加了机组出力—流量的计算误差。为此,根据最新历史观测数据,分析了BHT水电站尾水水位与其出库流量及下游水库XLD顶托水位的关系,建立了基于多情景划分的贝叶斯优化-长短期记忆网络(BO-LSTM)预测模型,并分析了调峰和泄洪工况下模型的应用效果。结果表明,XLD水位高于585 m后对BHT电站的尾水水位有显著的顶托影响。相比于水位—流量曲线和非线性曲线拟合方法,基于多情景划分的BO-LSTM模型在精度上有显著提升,平均绝对误差(MMAE)降低了68.1%。BO-LSTM模型在多种工况下均能更准确地捕捉水位的起伏变化过程。研究结果对水电站精细化调度具有重要意义。
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, authorsList=彭旺, 姚华明, 蒋志强, 曹辉)}, authors=[Author(id=1207271188867399774, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184450798447, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=hz09161997@outlook.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1207271189060337776, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184450798447, authorId=1207271188867399774, language=EN, stringName=Wang PENG, firstName=Wang, middleName=null, lastName=PENG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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1.华中科技大学土木与水利工程学院,湖北 武汉 470074
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彭旺(1997-),男,博士研究生,研究方向为水资源与水电能源优化调度,E-mail:hz09161997@outlook.com
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彭旺(1997-),男,博士研究生,研究方向为水资源与水电能源优化调度,E-mail:hz09161997@outlook.com
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54(2): 147-151., articleTitle=基于机器学习的三峡水库小时尺度坝前水位预测, refAbstract=null)], funds=[Fund(id=1207271194621985244, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184450798447, awardId=52479017, language=CN, fundingSource=国家自然科学基金项目(52479017), fundOrder=null, country=null), Fund(id=1207271194785563107, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184450798447, awardId=Z242302051, language=CN, fundingSource=中国长江电力股份有限公司资助(Z242302051), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1207271188510883907, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184450798447, xref=1., ext=[AuthorCompanyExt(id=1207271188519272517, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184450798447, companyId=1207271188510883907, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Relationship between discharge and downstream water level of BHT Hydropower Station under different water levels of XLD Hydropower Station, figureFileSmall=BfHlr+El1PfJGJaxBF4Z4g==, figureFileBig=u7hd/hdgP7+n/6iosnvw7Q==, tableContent=null), ArticleFig(id=1207271193044926823, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184450798447, language=CN, label=图1, caption=
不同XLD水位下BHT出库流量与下游水位关系, figureFileSmall=BfHlr+El1PfJGJaxBF4Z4g==, figureFileBig=u7hd/hdgP7+n/6iosnvw7Q==, tableContent=null), ArticleFig(id=1207271193288196477, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184450798447, language=EN, label=Fig. 2, caption=
Based on multi-scenario division and BO-LSTM BHT Hydropower Station downstream water level prediction process, figureFileSmall=YgprR4bLrTsZ8zjP15ILxg==, figureFileBig=n3jW/UTLF9djlJLzfh0j7A==, tableContent=null), ArticleFig(id=1207271193447580043, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184450798447, language=CN, label=图2, caption=
基于多情景划分和BO-LSTMBHT水电站下游水位预测流程, figureFileSmall=YgprR4bLrTsZ8zjP15ILxg==, figureFileBig=n3jW/UTLF9djlJLzfh0j7A==, tableContent=null), ArticleFig(id=1207271193560826257, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184450798447, language=EN, label=Fig. 3, caption=
Error sequence and scatter distribution of different prediction models, figureFileSmall=qJxCkuVAKzzcIJJEhgMT+Q==, figureFileBig=MCPSO1x5hLSVR9gKlMMufQ==, tableContent=null), ArticleFig(id=1207271193661489568, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184450798447, language=CN, label=图3, caption=
不同预测模型的误差序列和散点分布, figureFileSmall=qJxCkuVAKzzcIJJEhgMT+Q==, figureFileBig=MCPSO1x5hLSVR9gKlMMufQ==, tableContent=null), ArticleFig(id=1207271193816678826, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184450798447, language=EN, label=Fig. 4, caption=
The forecast results of BHT Hydropower Station under the conditions of flood discharge and peak regulation, figureFileSmall=EJTttM/o6eObVcJTxePWmQ==, figureFileBig=c1825X/v5AMQcYBN2ro/ag==, tableContent=null), ArticleFig(id=1207271193929925043, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184450798447, language=CN, label=图4, caption=
BHT水电站泄洪和调峰工况下的预测结果, figureFileSmall=EJTttM/o6eObVcJTxePWmQ==, figureFileBig=c1825X/v5AMQcYBN2ro/ag==, tableContent=null), ArticleFig(id=1207271194038976954, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184450798447, language=EN, label=Fig. 5, caption=
The average absolute error under different months, figureFileSmall=LK+JekfSPKqiNYngR5Ye8Q==, figureFileBig=+tWsP8yN9GIjpS8h7jd9SQ==, tableContent=null), ArticleFig(id=1207271194127057346, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184450798447, language=CN, label=图5, caption=
不同月份下的平均绝对误差, figureFileSmall=LK+JekfSPKqiNYngR5Ye8Q==, figureFileBig=+tWsP8yN9GIjpS8h7jd9SQ==, tableContent=null), ArticleFig(id=1207271194311606732, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184450798447, language=EN, label=Tab. 1, caption=
Prediction result of water level in the lower reaches of BHT Hydropower Station
, figureFileSmall=null, figureFileBig=null, tableContent=
| 评价指标 | 水位—流量关系曲线 | 非线性曲线 | BO-LSTM |
|---|
| 训练数据 | 测试数据 |
|---|
| 决定系数(R2) | 0.966 | 0.987 | 0.998 | 0.997 |
| 均方根误差RRMSE | 1.550 | 0.950 | 0.410 | 0.420 |
| 平均绝对误差MMAE | 1.330 | 0.720 | 0.220 | 0.240 |
| 标准偏差σ | 0.790 | 0.610 | 0.330 | 0.330 |
), ArticleFig(id=1207271194403881427, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184450798447, language=CN, label=表1, caption=
BHT水电站下游水位预测结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 评价指标 | 水位—流量关系曲线 | 非线性曲线 | BO-LSTM |
|---|
| 训练数据 | 测试数据 |
|---|
| 决定系数(R2) | 0.966 | 0.987 | 0.998 | 0.997 |
| 均方根误差RRMSE | 1.550 | 0.950 | 0.410 | 0.420 |
| 平均绝对误差MMAE | 1.330 | 0.720 | 0.220 | 0.240 |
| 标准偏差σ | 0.790 | 0.610 | 0.330 | 0.330 |
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