Article(id=1207271184765371263, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1207271180105499439, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2025.20250587, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1743436800000, receivedDateStr=2025-04-01, revisedDate=1748361600000, revisedDateStr=2025-05-28, acceptedDate=null, acceptedDateStr=null, onlineDate=1765765480461, onlineDateStr=2025-12-15, pubDate=1758729600000, pubDateStr=2025-09-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1765765480461, onlineIssueDateStr=2025-12-15, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1765765480461, creator=13701087609, updateTime=1765765480461, 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=187, endPage=191, ext={EN=ArticleExt(id=1207271185075749780, articleId=1207271184765371263, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Study on Nonlinear Transient Response Characteristics of Hydropower Station with Super-long Headrace Tunnel Considering Unsteady Friction, columnId=null, journalTitle=Water Resources and Power, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Unsteady friction plays a very complex role in the water hammer phenomenon within pipeline systems. For hydropower station with super-long headrace tunnel (SLHT), it is crucial to consider the effects of unsteady friction adequately. This paper conducts a study on the nonlinear transient response characteristics of hydropower station with SLHT based on unsteady friction. Firstly, a system model of hydropower station with SLHT is established using the method of characteristics, incorporating unsteady friction based on instantaneous acceleration. Then, simulations of this model are performed under load and frequency disturbances. Finally, the stability of the model under frequency disturbances is evaluated using the Bode plot method, and the impact of unsteady friction parameters on system stability is investigated in conjunction with the energy equation. The results show that the unsteady friction in the pipeline primarily affects the rapid response phase of the water turbine in the hydropower station with SLHT. When the impact coefficients of local acceleration (kt) and convective acceleration (kl) increase, the system stability deteriorates. Moreover, changes in kt and kl make the system more sensitive to high-frequency disturbances.
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非恒定摩阻在管道系统的水锤现象中具有非常复杂的作用,对于超长引水隧洞电站,充分考虑非恒定摩阻的影响十分必要。对此,开展考虑基于非恒定摩阻的超长引水隧洞水电站非线性暂态响应特性研究。首先,利用特征线法建立了基于瞬时加速度的非恒定摩阻的超长引水隧洞水电站系统模型,然后进行该模型在负荷及频率扰动下的仿真计算,最后使用伯德图法对该模型在频率扰动下的稳定性进行评估,并结合能量方程研究非恒定摩阻参数对系统稳定性的影响。结果表明,管道的非恒定摩阻主要作用于超长引水隧洞电站水轮机快速响应阶段。局部加速度影响系数(kt)、对流加速度影响系数(kl)增大时,系统稳定性变差。此外,kt、kl的变化对系统在受到高频扰动时表现得更加敏感。
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郭文成(1988-),男,副教授、博导,研究方向为水电能源系统过渡过程与控制,E-mail:wencheng@hust.edu.cn
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42(4): 413-425., articleTitle=Surge damping analysis in pipe systems: Modelling and experiments, refAbstract=null)], funds=[Fund(id=1207271198044537464, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184765371263, awardId=52379089, language=CN, fundingSource=国家自然科学基金项目(52379089), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1207271192520638764, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184765371263, xref=null, ext=[AuthorCompanyExt(id=1207271192529027373, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184765371263, companyId=1207271192520638764, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China), AuthorCompanyExt(id=1207271192541610286, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184765371263, companyId=1207271192520638764, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=华中科技大学土木与水利工程学院,湖北 武汉 430074)])], figs=[ArticleFig(id=1207271195242742280, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184765371263, language=EN, label=Fig. 1, caption=
Time-domain diagram of the transient response of units and surege tank in the hydropower station with SLHT under step power disturbance, figureFileSmall=8LdBBx1erob6rWviV0fVMA==, figureFileBig=9FEJhv6vODG3kZ1P797M7A==, tableContent=null), ArticleFig(id=1207271195364377104, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184765371263, language=CN, label=图1, caption=
超长引水隧洞水电站在负荷扰动突减负荷下机组与调压室暂态响应时域图, figureFileSmall=8LdBBx1erob6rWviV0fVMA==, figureFileBig=9FEJhv6vODG3kZ1P797M7A==, tableContent=null), ArticleFig(id=1207271195678949926, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184765371263, language=EN, label=Fig. 2, caption=
Time-domain diagram of the transient response of units and surege tank in the hydropower station with SLHT under step frequency disturbance, figureFileSmall=2owRjHpyMmAXHELd3Plbdw==, figureFileBig=qapmkfBOEP2ma/1opNVFvg==, tableContent=null), ArticleFig(id=1207271196928852533, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184765371263, language=CN, label=图2, caption=
超长引水隧洞水电站在阶跃频率扰动下水轮机与调压室暂态响应时域图, figureFileSmall=2owRjHpyMmAXHELd3Plbdw==, figureFileBig=qapmkfBOEP2ma/1opNVFvg==, tableContent=null), ArticleFig(id=1207271197058875967, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184765371263, language=EN, label=Fig. 3, caption=
Bode diagram of frequency disturbance in the hydropower station with super long headrace tunnel under the effect of local acceleration coefficient kt, figureFileSmall=jLkKRprkEgOdVyTKm5cw0w==, figureFileBig=+bqnJ58wykgeykgwEMu39g==, tableContent=null), ArticleFig(id=1207271197193093702, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184765371263, language=CN, label=图3, caption=
局部加速度影响系数kt作用下超长引水隧洞水电站频率扰动伯德图, figureFileSmall=jLkKRprkEgOdVyTKm5cw0w==, figureFileBig=+bqnJ58wykgeykgwEMu39g==, tableContent=null), ArticleFig(id=1207271197352477264, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184765371263, language=EN, label=Fig. 4, caption=
Transient response of tunnel energy and surge tank water level in ultra-long diversion tunnel hydropower station under sinusoidal frenquency disturbance with different local acceleration influence coefficients, figureFileSmall=Y1rcsLb0hzJSmyoUnv1jhQ==, figureFileBig=xg/i97x08F6pisVbFcJJnQ==, tableContent=null), ArticleFig(id=1207271197486695000, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184765371263, language=CN, label=图4, caption=
不同局部加速度影响系数时正弦波频率扰动下超长引水隧洞水电站流道能量与调压室水位暂态响应, figureFileSmall=Y1rcsLb0hzJSmyoUnv1jhQ==, figureFileBig=xg/i97x08F6pisVbFcJJnQ==, tableContent=null), ArticleFig(id=1207271197608329826, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184765371263, language=EN, label=Fig. 5, caption=
Bode diagram of frequency disturbance in the hydropower station with super long headrace tunnel under the effect of convective acceleration coefficient kl, figureFileSmall=r4Iyu5nQkMslLPKUlwAe3w==, figureFileBig=LfcOoJsQJG4B5HMaE1ozaw==, tableContent=null), ArticleFig(id=1207271197725770344, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184765371263, language=CN, label=图5, caption=
对流加速度影响系数kl作用下超长引水隧洞水电站频率扰动伯德图, figureFileSmall=r4Iyu5nQkMslLPKUlwAe3w==, figureFileBig=LfcOoJsQJG4B5HMaE1ozaw==, tableContent=null), ArticleFig(id=1207271197822239340, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184765371263, language=EN, label=Fig. 6, caption=
Transient response of tunnel energy and surge tank water level in ultra-long diversion tunnel hydropower station under sinusoidal frenquency disturbance with different convective acceleration influence coefficients, figureFileSmall=s5qn43xYUZc7JFO8WtF7IQ==, figureFileBig=I9PkB4Bp17bEsN0nbBWj0Q==, tableContent=null), ArticleFig(id=1207271197943874162, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1207271184765371263, language=CN, label=图6, caption=
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