Article(id=1203753459670557672, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1203753457208504777, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2401491, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1709568000000, receivedDateStr=2024-03-05, revisedDate=1729699200000, revisedDateStr=2024-10-24, acceptedDate=null, acceptedDateStr=null, onlineDate=1764926789442, onlineDateStr=2025-12-05, pubDate=1737129600000, pubDateStr=2025-01-18, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764926789442, onlineIssueDateStr=2025-12-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764926789442, creator=13701087609, updateTime=1764926789442, updator=13701087609, issue=Issue{id=1203753457208504777, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='2', pageStart='439', pageEnd='878', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1764926788856, creator=13701087609, updateTime=1764928745558, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1203761664261858014, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1203753457208504777, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1203761664261858015, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1203753457208504777, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=598, endPage=609, ext={EN=ArticleExt(id=1203753460131931132, articleId=1203753459670557672, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Probabilistic Power Flow Calculation Based on the Data-Driven Polynomial Chaos Approximation, columnId=1156262733675876713, journalTitle=Science Technology and Engineering, columnName=Papers·Electrical Technology, runingTitle=null, highlight=null, articleAbstract=
In order to analyze the influence of uncertain factors on power system, PCA (polynomial chaos approximation) method, which is both fast and accurate, is widely used in probabilistic power flow calculation. The polynomial chaotic approximation method requires that the probability density function of the random input variable is known, and the random input variable must satisfy the independent condition. A probabilistic power flow method based on DDPCA (data driven polynomial chaos approximation) was proposed for the known random input variables which are historical data. First, DDPCA selects the optimal orthogonal polynomial according to the historical data, and then determines the Gaussian sample considering the nonlinear correlation of random input variables, and then computes the weights with Monte Carlo integral. Then, a small amount of power flow was calculated based on Gaussian samples, and the approximation coefficient was solved according to the power flow results and weights, and then the statistical characteristics of the random output variables were obtained. The proposed method was compared with the point estimation method, and the effectiveness of the proposed method was verified by the results of three examples.
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为了分析不确定性因素对电力系统的影响,兼具快速性和准确性的多项式混沌逼近法(polynomial chaos approximation,PCA)被广泛应用于概率潮流计算中。多项式混沌逼近法要求已知随机输入变量的概率密度函数(probability density function,PDF),同时随机输入变量需要满足独立条件。针对已知随机输入变量为历史数据的情况,提出了一种数据驱动型多项式混沌逼近(data driven polynomial chaos approximation,DDPCA)的概率潮流方法。首先,DDPCA根据历史数据选择最优的正交多项式,进而确定考虑随机输入变量非线性相关性时的高斯样本,然后结合蒙特卡洛积分计算权重。紧接着,基于高斯样本进行少量的潮流计算,并根据潮流结果和权重求解逼近系数,进而求取随机输出变量的统计特征。将所提方法与点估计法进行了比较,在三个算例上的结果验证了所提方法的有效性。
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雷傲宇(1990—),男,汉族,四川仁寿人,博士,高级工程师。研究方向:电力系统风险评估和运行控制。E-mail:leiay@csg.cn。
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1 CSG Power Dispatch Control Center, Guangzhou 510663, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1203787155299611142, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, authorId=1203787155056341483, language=CN, stringName=雷傲宇, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 中国南方电网电力调度控制中心, 广州 510663, bio={"content":"
雷傲宇(1990—),男,汉族,四川仁寿人,博士,高级工程师。研究方向:电力系统风险评估和运行控制。E-mail:leiay@csg.cn。
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雷傲宇(1990—),男,汉族,四川仁寿人,博士,高级工程师。研究方向:电力系统风险评估和运行控制。E-mail:leiay@csg.cn。
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2 School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China
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2 武汉大学电气与自动化学院, 武汉 430072
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2 武汉大学电气与自动化学院, 武汉 430072)]), AuthorCompany(id=1203787154787905998, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, xref=3, ext=[AuthorCompanyExt(id=1203787154796294605, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, companyId=1203787154787905998, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2 School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China
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2 武汉大学电气与自动化学院, 武汉 430072
3 交直流智能配电网湖北省工程中心, 武汉 430072, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1203787154586579383, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, xref=2, ext=[AuthorCompanyExt(id=1203787154590773690, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, companyId=1203787154586579383, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2 武汉大学电气与自动化学院, 武汉 430072)]), AuthorCompany(id=1203787154787905998, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, xref=3, ext=[AuthorCompanyExt(id=1203787154796294605, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, companyId=1203787154787905998, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 Hubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network, Wuhan 430072, China), AuthorCompanyExt(id=1203787154804683214, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, companyId=1203787154787905998, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1 CSG Power Dispatch Control Center, Guangzhou 510663, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1203787156469822087, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, authorId=1203787156201386611, language=CN, stringName=梅勇, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 中国南方电网电力调度控制中心, 广州 510663, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1203787154452361637, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, xref=1, ext=[AuthorCompanyExt(id=1203787154460750246, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, companyId=1203787154452361637, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1 中国南方电网电力调度控制中心, 广州 510663)])]), Author(id=1203787156608234130, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, orderNo=4, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1203787156742451868, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, authorId=1203787156608234130, language=EN, stringName=Yong-jian LUO, firstName=Yong-jian, middleName=null, lastName=LUO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2 School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China
3 Hubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network, Wuhan 430072, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1203787156889252520, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, authorId=1203787156608234130, language=CN, stringName=罗永建, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2 武汉大学电气与自动化学院, 武汉 430072
3 交直流智能配电网湖北省工程中心, 武汉 430072, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1203787154586579383, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, xref=2, ext=[AuthorCompanyExt(id=1203787154590773690, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, companyId=1203787154586579383, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2 武汉大学电气与自动化学院, 武汉 430072)]), AuthorCompany(id=1203787154787905998, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, xref=3, ext=[AuthorCompanyExt(id=1203787154796294605, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, companyId=1203787154787905998, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3 交直流智能配电网湖北省工程中心, 武汉 430072)])]), Author(id=1203787157023470265, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, orderNo=5, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1203787157828776650, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, authorId=1203787157023470265, language=EN, stringName=Hong-yue ZHEN, firstName=Hong-yue, middleName=null, lastName=ZHEN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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4 State Key Laboratory of HVDC, Electric Power Research Institute, CSG, Guangzhou 510663, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1203787157946217172, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, authorId=1203787157023470265, language=CN, stringName=甄鸿越, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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19(1): 676-682., articleTitle=Probabilistic load flow computation using the method of combined cumulants and Gram-Charlier expansion, refAbstract=null)], funds=[Fund(id=1203787169040150785, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, awardId=ZDKJXM20210063, language=CN, fundingSource=中国南方电网有限责任公司科技项目(ZDKJXM20210063), fundOrder=null, country=null), Fund(id=1203787169136619780, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, awardId=2022A1515240033, language=CN, fundingSource=广东省基础与应用基础研究项目(2022A1515240033), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1203787154452361637, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, xref=1, ext=[AuthorCompanyExt(id=1203787154460750246, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, companyId=1203787154452361637, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Probability density function of voltage amplitude at node 9, figureFileSmall=l3iePQR++zdtX5++1/vABA==, figureFileBig=y3VXjFPQVwUDUhYNbF74Lw==, tableContent=null), ArticleFig(id=1203787160106283920, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图1, caption=
节点9电压幅值的概率密度函数, figureFileSmall=l3iePQR++zdtX5++1/vABA==, figureFileBig=y3VXjFPQVwUDUhYNbF74Lw==, tableContent=null), ArticleFig(id=1203787160261473179, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.2, caption=
Cumulative distribution function of voltage amplitude at node 9, figureFileSmall=b+lzC59fuVrzMDWZZ+mCUw==, figureFileBig=hitGqLKAShZXt9j+1l4nOQ==, tableContent=null), ArticleFig(id=1203787160425051044, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图2, caption=
节点9电压幅值的累积分布函数, figureFileSmall=b+lzC59fuVrzMDWZZ+mCUw==, figureFileBig=hitGqLKAShZXt9j+1l4nOQ==, tableContent=null), ArticleFig(id=1203787160609600431, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.3, caption=
Probability density function of voltage angle at node 2, figureFileSmall=yOM+NFRuCel6Xeb4BtFWJg==, figureFileBig=paHLjj5GN6SfZ9jVWBp/LQ==, tableContent=null), ArticleFig(id=1203787160756401078, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图3, caption=
节点2电压相角的概率密度函数, figureFileSmall=yOM+NFRuCel6Xeb4BtFWJg==, figureFileBig=paHLjj5GN6SfZ9jVWBp/LQ==, tableContent=null), ArticleFig(id=1203787160848675776, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.4, caption=
Cumulative distribution function of voltage angle at node 2, figureFileSmall=b27QBIxPGR1VDDdpMwIwCg==, figureFileBig=gLnWg3BBONmZR+WwJGk23A==, tableContent=null), ArticleFig(id=1203787160978699206, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图4, caption=
节点2电压相角的累积分布函数, figureFileSmall=b27QBIxPGR1VDDdpMwIwCg==, figureFileBig=gLnWg3BBONmZR+WwJGk23A==, tableContent=null), ArticleFig(id=1203787161112916940, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.5, caption=
Probability density function of the active power of line 1-2, figureFileSmall=W/1k+2P3KVHIzfJgC60imA==, figureFileBig=VmqT80V/PPF+F9bQTuahVA==, tableContent=null), ArticleFig(id=1203787161251328985, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图5, caption=
线路1-2有功功率的概率密度函数, figureFileSmall=W/1k+2P3KVHIzfJgC60imA==, figureFileBig=VmqT80V/PPF+F9bQTuahVA==, tableContent=null), ArticleFig(id=1203787161339409378, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.6, caption=
Cumulative distribution function of the active power of line 1-2, figureFileSmall=2+3/c25Ocp4q7KWjPtE1ag==, figureFileBig=SA4UztHEv4A+1rupBjqfug==, tableContent=null), ArticleFig(id=1203787161469432813, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图6, caption=
线路1-2有功功率的累积分布函数, figureFileSmall=2+3/c25Ocp4q7KWjPtE1ag==, figureFileBig=SA4UztHEv4A+1rupBjqfug==, tableContent=null), ArticleFig(id=1203787161599456242, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.7, caption=
Probability density function of the reactive power of line 1-2, figureFileSmall=9zbjxTqaUB91ek7xuHyXjQ==, figureFileBig=X6yhY/KZlrdedk84ANPEQg==, tableContent=null), ArticleFig(id=1203787161708508153, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图7, caption=
线路1-2无功功率的概率密度函数, figureFileSmall=9zbjxTqaUB91ek7xuHyXjQ==, figureFileBig=X6yhY/KZlrdedk84ANPEQg==, tableContent=null), ArticleFig(id=1203787161834337281, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.8, caption=
Cumulative distribution function of the reactive power of line 1-2, figureFileSmall=iQXSSMHWAnYk8jsxKfbT3g==, figureFileBig=1l5bO+XPNYYz4y1LUbIsAQ==, tableContent=null), ArticleFig(id=1203787162010497030, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图8, caption=
线路1-2无功功率的累积分布函数, figureFileSmall=iQXSSMHWAnYk8jsxKfbT3g==, figureFileBig=1l5bO+XPNYYz4y1LUbIsAQ==, tableContent=null), ArticleFig(id=1203787162157297678, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.9, caption=
The change of the active power output of the slack node, figureFileSmall=/muvfajNUbDnX0bYAQx+NA==, figureFileBig=Xr+PpELp3JILgvCv6R0xzg==, tableContent=null), ArticleFig(id=1203787162333458460, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图9, caption=
平衡节点有功出力的变化情况, figureFileSmall=/muvfajNUbDnX0bYAQx+NA==, figureFileBig=Xr+PpELp3JILgvCv6R0xzg==, tableContent=null), ArticleFig(id=1203787162497036324, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.10, caption=
Relative error of active power output of the slack node, figureFileSmall=UFcC6d+54ygknGnB6ks9fQ==, figureFileBig=C5b56clxFkzp74LR6BJmYA==, tableContent=null), ArticleFig(id=1203787162631254057, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图10, caption=
DDPCA平衡节点有功出力的相对误差, figureFileSmall=UFcC6d+54ygknGnB6ks9fQ==, figureFileBig=C5b56clxFkzp74LR6BJmYA==, tableContent=null), ArticleFig(id=1203787162778054703, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.11, caption=
Power grid of Hubei Suizhou, figureFileSmall=UEiiFI9CQm9LpGMM5f3vlQ==, figureFileBig=E58I4jwYOyR+DtOXZbhKqw==, tableContent=null), ArticleFig(id=1203787163977625655, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图11, caption=
湖北随州电网, figureFileSmall=UEiiFI9CQm9LpGMM5f3vlQ==, figureFileBig=E58I4jwYOyR+DtOXZbhKqw==, tableContent=null), ArticleFig(id=1203787164107649090, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.12, caption=
Probability density function of voltage amplitude at node 1, figureFileSmall=ZLp9Lros2TEn3mUvK6djSg==, figureFileBig=eFRVd3FVa/hC58/WlP1H1w==, tableContent=null), ArticleFig(id=1203787164229283914, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图12, caption=
节点1电压幅值的概率密度函数, figureFileSmall=ZLp9Lros2TEn3mUvK6djSg==, figureFileBig=eFRVd3FVa/hC58/WlP1H1w==, tableContent=null), ArticleFig(id=1203787164325752917, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.13, caption=
Cumulative distribution function of voltage amplitude at node 1, figureFileSmall=e3jrJKky/aDLriYwd17VLw==, figureFileBig=ZaRWDgnfRUwbQ3DuMIExMg==, tableContent=null), ArticleFig(id=1203787164527079522, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图13, caption=
节点1电压幅值的累积分布函数, figureFileSmall=e3jrJKky/aDLriYwd17VLw==, figureFileBig=ZaRWDgnfRUwbQ3DuMIExMg==, tableContent=null), ArticleFig(id=1203787164644520043, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.14, caption=
Probability density function of voltage angle at node 1, figureFileSmall=RbwwvFjJn6ErMGgZitgOhg==, figureFileBig=YWyIjqq5WExuPiwnl8TpSw==, tableContent=null), ArticleFig(id=1203787164799709299, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图14, caption=
节点1电压相角的概率密度函数, figureFileSmall=RbwwvFjJn6ErMGgZitgOhg==, figureFileBig=YWyIjqq5WExuPiwnl8TpSw==, tableContent=null), ArticleFig(id=1203787164946509944, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.15, caption=
Cumulative distribution function of voltage angle at node 1, figureFileSmall=msGDvJ/h7dGFjZAVRHtJaA==, figureFileBig=zBcCZsugcD6syAprVYHzjQ==, tableContent=null), ArticleFig(id=1203787165055561858, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图15, caption=
节点1电压相角的累积分布函数, figureFileSmall=msGDvJ/h7dGFjZAVRHtJaA==, figureFileBig=zBcCZsugcD6syAprVYHzjQ==, tableContent=null), ArticleFig(id=1203787165168808073, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.16, caption=
Probability density function of the active power of line 1-2, figureFileSmall=4HX5kXPLFsKE/Lyo7qtnEA==, figureFileBig=heGBAmwpg1u4KEDKOPPIgg==, tableContent=null), ArticleFig(id=1203787165311414418, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图16, caption=
线路1-2有功功率的概率密度函数, figureFileSmall=4HX5kXPLFsKE/Lyo7qtnEA==, figureFileBig=heGBAmwpg1u4KEDKOPPIgg==, tableContent=null), ArticleFig(id=1203787165458215063, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.17, caption=
Cumulative distribution function of the active power of line 1-2, figureFileSmall=a0NxtEQNR1zfM2hRje2nJg==, figureFileBig=HSKARSkJr2XXa1fomDEuKg==, tableContent=null), ArticleFig(id=1203787165613404322, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图17, caption=
线路1-2有功功率的累积分布函数, figureFileSmall=a0NxtEQNR1zfM2hRje2nJg==, figureFileBig=HSKARSkJr2XXa1fomDEuKg==, tableContent=null), ArticleFig(id=1203787165739233449, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.18, caption=
Probability density function of the reactive power of line 1-2, figureFileSmall=7FX+Qn95A2X51ibrOt7X8w==, figureFileBig=Umhpk1WYGlcRrDdS+aNBCg==, tableContent=null), ArticleFig(id=1203787165869256875, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图18, caption=
线路1-2无功功率的概率密度函数, figureFileSmall=7FX+Qn95A2X51ibrOt7X8w==, figureFileBig=Umhpk1WYGlcRrDdS+aNBCg==, tableContent=null), ArticleFig(id=1203787165986697390, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.19, caption=
Cumulative distribution function of the reactive power of line 1-2, figureFileSmall=fqwOZDf4RGeIeIbXbHOSKQ==, figureFileBig=WltWC8YrT42BbvIiGEblgw==, tableContent=null), ArticleFig(id=1203787166083166387, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图19, caption=
线路1-2无功功率的累积分布函数, figureFileSmall=fqwOZDf4RGeIeIbXbHOSKQ==, figureFileBig=WltWC8YrT42BbvIiGEblgw==, tableContent=null), ArticleFig(id=1203787166204801209, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.20, caption=
The change of the active power output of the slack node, figureFileSmall=u/IKpfLDHdKDZpDp08umDQ==, figureFileBig=1hobOupv3rs+BUCnXMf3Vg==, tableContent=null), ArticleFig(id=1203787166322241727, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图20, caption=
平衡节点有功出力的变化情况, figureFileSmall=u/IKpfLDHdKDZpDp08umDQ==, figureFileBig=1hobOupv3rs+BUCnXMf3Vg==, tableContent=null), ArticleFig(id=1203787166431293635, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Fig.21, caption=
Relative error of active power output of the slack node, figureFileSmall=japhw8l2IkMzqzwrXyDUSg==, figureFileBig=Yt7P1Eq0tKW2aospwFehSQ==, tableContent=null), ArticleFig(id=1203787166544539847, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=图21, caption=
DDPCA平衡节点有功出力的相对误差, figureFileSmall=japhw8l2IkMzqzwrXyDUSg==, figureFileBig=Yt7P1Eq0tKW2aospwFehSQ==, tableContent=null), ArticleFig(id=1203787166649397456, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Table 1, caption=
The accuracy comparison of the two methods(abnormal distribution)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法 | 均值 | 方差 | 3阶中心矩 | 4阶中心矩 |
| 真实值 | 13 | 8.156 2 | -35.314 9 | 497.945 |
| DDPCA | 13 | 8.156 2 | -35.314 9 | 497.945 |
| 3PEM | 12.995 | 7.152 8 | -16.266 3 | 111.671 4 |
), ArticleFig(id=1203787166745866454, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=表1, caption=
两种方法的精度对比(非正态分布)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法 | 均值 | 方差 | 3阶中心矩 | 4阶中心矩 |
| 真实值 | 13 | 8.156 2 | -35.314 9 | 497.945 |
| DDPCA | 13 | 8.156 2 | -35.314 9 | 497.945 |
| 3PEM | 12.995 | 7.152 8 | -16.266 3 | 111.671 4 |
), ArticleFig(id=1203787166846529754, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Table 2, caption=
The accuracy comparison of the two methods(normal distribution)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法 | 均值 | 方差 | 3阶中心矩 | 4阶中心矩 |
| 真实值 | 18 | 19 | 0 | 1 083 |
| DDPCA | 18 | 19 | 0 | 1 083 |
| 3PEM | 18 | 19 | 3.55×10-14 | 795 |
), ArticleFig(id=1203787166934610141, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=表2, caption=
两种方法的精度对比(正态分布)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法 | 均值 | 方差 | 3阶中心矩 | 4阶中心矩 |
| 真实值 | 18 | 19 | 0 | 1 083 |
| DDPCA | 18 | 19 | 0 | 1 083 |
| 3PEM | 18 | 19 | 3.55×10-14 | 795 |
), ArticleFig(id=1203787167052050662, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Table 3, caption=
Mean relative error of mean and variance
, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 误差指标 | DDPCA | 3PEM |
| V | | 1.65×10-8 | 6.08×10-5 |
| | 1.30×10-3 | 9.96×10-2 |
| θ | | 2.83×10-6 | 8.54×10-2 |
| | 1.00×10-4 | 3.46×10-2 |
| Pline | | 1.76×10-6 | 1.20×10-1 |
| | 5.65×10-4 | 4.25×10-2 |
| Qline | | 7.51×10-6 | 1.03×10-1 |
| | 8.88×10-4 | 5.35×10-2 |
), ArticleFig(id=1203787167177879785, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=表3, caption=
均值和方差的平均相对误差
, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 误差指标 | DDPCA | 3PEM |
| V | | 1.65×10-8 | 6.08×10-5 |
| | 1.30×10-3 | 9.96×10-2 |
| θ | | 2.83×10-6 | 8.54×10-2 |
| | 1.00×10-4 | 3.46×10-2 |
| Pline | | 1.76×10-6 | 1.20×10-1 |
| | 5.65×10-4 | 4.25×10-2 |
| Qline | | 7.51×10-6 | 1.03×10-1 |
| | 8.88×10-4 | 5.35×10-2 |
), ArticleFig(id=1203787167278543087, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Table 4, caption=
Branch data
, figureFileSmall=null, figureFileBig=null, tableContent=
| 支路 | 电阻/p.u. | 电抗/p.u. | 电纳/p.u. |
| 1-2 | 0.001 512 670 | 0.010 627 67 | 0.039 22 |
| 1-5 | 0.002 136 05 | 0.017 798 4 | 0.059 4 |
| 1-5 | 0.002 313 43 | 0.016 954 5 | 0.061 75 |
| 1-7 | 0.001 460 09 | 0.011 601 3 | 0.039 22 |
| 1-10 | 0.002 715 06 | 0.024 333 8 | 0.081 19 |
| 3-9 | 0.013 240 7 | 0.058 463 3 | 0.127 59 |
| 3-10 | 0.000 577 209 | 0.002 685 51 | 0.006 1 |
| 4-5 | 0.003 206 85 | 0.022 530 5 | 0.083 15 |
| 4-6 | 0.003 274 92 | 0.023 008 8 | 0.084 91 |
| 5-9 | 0.002 845 94 | 0.023 151 1 | 0.077 48 |
| 6-8 | 0.000 069 75 | 0.000 572 401 | 0.001 96 |
| 7-9 | 0.084 521 5 | 0.312 144 | 0.001 41 |
| 1-6 | 0.001 702 73 | 0.013 529 | 0.040 2 |
| 1-6 | 0.001 835 65 | 0.015 063 3 | 0.051 58 |
), ArticleFig(id=1203787168436170994, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=表4, caption=
支路数据
, figureFileSmall=null, figureFileBig=null, tableContent=
| 支路 | 电阻/p.u. | 电抗/p.u. | 电纳/p.u. |
| 1-2 | 0.001 512 670 | 0.010 627 67 | 0.039 22 |
| 1-5 | 0.002 136 05 | 0.017 798 4 | 0.059 4 |
| 1-5 | 0.002 313 43 | 0.016 954 5 | 0.061 75 |
| 1-7 | 0.001 460 09 | 0.011 601 3 | 0.039 22 |
| 1-10 | 0.002 715 06 | 0.024 333 8 | 0.081 19 |
| 3-9 | 0.013 240 7 | 0.058 463 3 | 0.127 59 |
| 3-10 | 0.000 577 209 | 0.002 685 51 | 0.006 1 |
| 4-5 | 0.003 206 85 | 0.022 530 5 | 0.083 15 |
| 4-6 | 0.003 274 92 | 0.023 008 8 | 0.084 91 |
| 5-9 | 0.002 845 94 | 0.023 151 1 | 0.077 48 |
| 6-8 | 0.000 069 75 | 0.000 572 401 | 0.001 96 |
| 7-9 | 0.084 521 5 | 0.312 144 | 0.001 41 |
| 1-6 | 0.001 702 73 | 0.013 529 | 0.040 2 |
| 1-6 | 0.001 835 65 | 0.015 063 3 | 0.051 58 |
), ArticleFig(id=1203787168549417203, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Table 5, caption=
Load data
, figureFileSmall=null, figureFileBig=null, tableContent=
| 母线 | 有功功率/MW | 无功功率/Mvar |
| 2 | 40 | 200 |
| 3 | 500 | 300 |
| 6 | 400 | 0 |
| 8 | 83 | 0 |
| 10 | 135 | 0 |
), ArticleFig(id=1203787168675246330, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=表5, caption=
负荷数据
, figureFileSmall=null, figureFileBig=null, tableContent=
| 母线 | 有功功率/MW | 无功功率/Mvar |
| 2 | 40 | 200 |
| 3 | 500 | 300 |
| 6 | 400 | 0 |
| 8 | 83 | 0 |
| 10 | 135 | 0 |
), ArticleFig(id=1203787168771715321, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=EN, label=Table 6, caption=
Mean relative error of mean and variance
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 误差指标 | DDPCA | 3PEM |
| V | | 5.67×10-10 | 3.35×10-5 |
| | 2.20×10-3 | 3.05×10-1 |
| θ | | 2.38×10-8 | 1.53×10-1 |
| | 2.55×10-6 | 2.94×10-2 |
| Pline | | 4.25×10-9 | 1.25×10-1 |
| | 7.10×10-7 | 3.86×10-2 |
| Qline | | 1.02×10-6 | 3.87×10-1 |
| | 1.65×10-4 | 3.76×10-2 |
), ArticleFig(id=1203787168855601404, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753459670557672, language=CN, label=表6, caption=
均值和方差的平均相对误差
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 误差指标 | DDPCA | 3PEM |
| V | | 5.67×10-10 | 3.35×10-5 |
| | 2.20×10-3 | 3.05×10-1 |
| θ | | 2.38×10-8 | 1.53×10-1 |
| | 2.55×10-6 | 2.94×10-2 |
| Pline | | 4.25×10-9 | 1.25×10-1 |
| | 7.10×10-7 | 3.86×10-2 |
| Qline | | 1.02×10-6 | 3.87×10-1 |
| | 1.65×10-4 | 3.76×10-2 |
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