Article(id=1222543591923245451, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1222543587536003358, articleNumber=null, orderNo=null, doi=10.19666/j.rlfd.202303091, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1679587200000, receivedDateStr=2023-03-24, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1769406706076, onlineDateStr=2026-01-26, pubDate=1703433600000, pubDateStr=2023-12-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769406706076, onlineIssueDateStr=2026-01-26, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769406706076, creator=13701087609, updateTime=1769406706076, updator=13701087609, issue=Issue{id=1222543587536003358, tenantId=1146029695717560320, journalId=1210938733613449225, year='2023', volume='52', issue='12', pageStart='1', pageEnd='197', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769406705029, creator=13701087609, updateTime=1773814454114, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241031027209064788, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1222543587536003358, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241031027209064789, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1222543587536003358, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=131, endPage=139, ext={EN=ArticleExt(id=1222543593328337305, articleId=1222543591923245451, tenantId=1146029695717560320, journalId=1210938733613449225, language=EN, title=Research on intelligent fault diagnosis of wind turbine based on WOA-KELM algorithm, columnId=1211002409397129992, journalTitle=Thermal Power Generation, columnName=Power generation technology forum, runingTitle=null, highlight=null, articleAbstract=
The typical faults of wind turbines are summarized. The fault data and non-fault data of converter system, generator system, variable propeller system and auxiliary power system with high fault frequency of wind turbines in a wind farm are selected for fault diagnosis research. The fault diagnosis model is established by ELM, SVM, KELM and WOA-KELM algorithms respectively. At the same time, Laplacian scores are used to sort and select the importance degree of model characteristic variables. WOA-KELM algorithm achieves better diagnostic effect by optimizing the regularization parameter C and kernel parameter γof KELM algorithm. The results show that, the diagnostic accuracy of the four algorithms for non-fault types is 100% under different sample numbers. The average diagnostic accuracy of WOA-KELM algorithm improves from 88.0% to 93.2% after feature screening by using Laplace scores. In the range of 250~500 samples, the diagnostic accuracy of WOA-KELM algorithm reaches the maximum of 96.0% after feature screening. It is proved that this model can effectively realize the fault diagnosis of wind turbine, and provide guidance and reference for field operation and maintenance personnel.
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针对风电机组存在的典型故障进行了归纳,选取某风场风电机组故障频次较高的变流系统、发电机系统、变桨系统、辅助电源系统故障数据和非故障数据进行故障诊断研究,分别采用极限学习机(ELM)、最小二乘支持向量机(SVM)、核极限学习机(KELM)和鲸鱼群优化算法(WOA)的WOA-KELM算法建立了故障诊断模型,同时采用拉普拉斯分数对模型特征变量重要程度进行排序和选取,WOA-KELM算法通过优化KELM算法的正则化参数C与核参数γσ取得了更好的诊断效果。研究表明:不同样本数量下4种算法4对非故障类型的诊断准确率均为100%;采用拉普拉斯分数对WOA-KELM算法进行特征筛选后测试样本的平均诊断准确率从88.0%提高到93.2%;WOA-KELM算法在样本数量为250~500内进行特征筛选后的诊断准确率达到最大值96.0%。这证明该模型可以有效实现风电机组的故障诊断,为现场运维人员提供指导与参考。
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, authorsList=安留明, 沙德生, 张庆, 李芊, 刘潇波, 张鑫赟)}, authors=[Author(id=1240938923074048916, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=lm_an@qny.chng.com.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1240938923178906525, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, authorId=1240938923074048916, language=EN, stringName=Liuming AN, firstName=Liuming, middleName=null, lastName=AN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=China Huaneng Clean Energy Research Institute Co, Ltd, Beijing 102209, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1240938923308929955, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, authorId=1240938923074048916, language=CN, stringName=安留明, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=中国华能集团清洁能源技术研究院有限公司,北京 102209, bio={"content":"
安留明(1995),男,硕士,工程师,主要研究方向为风电机组状态监测与故障诊断,lm_an@qny.chng.com.cn。
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安留明(1995),男,硕士,工程师,主要研究方向为风电机组状态监测与故障诊断,lm_an@qny.chng.com.cn。
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keyword=拉普拉斯分数)], refs=[Reference(id=1240938928606335179, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=徐蔚冰, journalName=中国经济时报, refType=null, unstructuredReference=徐蔚冰.我国可再生能源进入大规模跃升新阶段[N].
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29(5): 1452-1461., articleTitle=Hybrid algorithm of filter and improved grey wolf optimization for fault feature selection of rolling bearing, refAbstract=null)], funds=[Fund(id=1240938928392425668, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, awardId=QNYJJ22-18, language=EN, fundingSource=Research and Development Fund Project of Huaneng Clean Energy Institute(QNYJJ22-18), fundOrder=null, country=null), Fund(id=1240938928472117448, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, awardId=QNYJJ22-18, language=CN, fundingSource=中国华能集团清洁能源技术研究院有限公司研究与开发基金项目(QNYJJ22-18), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1240938922918859658, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, xref=null, ext=[AuthorCompanyExt(id=1240938922927248267, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, companyId=1240938922918859658, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=China Huaneng Clean Energy Research Institute Co, Ltd, Beijing 102209, China), AuthorCompanyExt(id=1240938922948219790, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, companyId=1240938922918859658, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=中国华能集团清洁能源技术研究院有限公司,北京 102209)])], figs=[ArticleFig(id=1240938925963923544, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=EN, label=Fig.1, caption=
Wind turbine composition and working principle diagram, figureFileSmall=uzCAroyNf4sPjYQNgmXTlQ==, figureFileBig=2uTXKLDay3LRFELJVmJ9zA==, tableContent=null), ArticleFig(id=1240938926026838109, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=CN, label=图1, caption=
风电机组组成及工作原理, figureFileSmall=uzCAroyNf4sPjYQNgmXTlQ==, figureFileBig=2uTXKLDay3LRFELJVmJ9zA==, tableContent=null), ArticleFig(id=1240938926211387492, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=EN, label=Fig.2, caption=
Structural diagram of single hidden layer feedforward neural network, figureFileSmall=H6D7L1yN3nP+Jv7QU9uDkQ==, figureFileBig=LLZnDohk+NLEDLLBz+//3g==, tableContent=null), ArticleFig(id=1240938926320439404, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=CN, label=图2, caption=
单隐含层前馈神经网络结构, figureFileSmall=H6D7L1yN3nP+Jv7QU9uDkQ==, figureFileBig=LLZnDohk+NLEDLLBz+//3g==, tableContent=null), ArticleFig(id=1240938926404325488, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=EN, label=Fig.3, caption=
Flow chart of KELM parameters optimized by WOA, figureFileSmall=e+j2FhCc46M4ASRyu2g7QA==, figureFileBig=VlQbsUE+P40rng3VM3Yviw==, tableContent=null), ArticleFig(id=1240938926509183090, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=CN, label=图3, caption=
WOA优化KELM参数的流程, figureFileSmall=e+j2FhCc46M4ASRyu2g7QA==, figureFileBig=VlQbsUE+P40rng3VM3Yviw==, tableContent=null), ArticleFig(id=1240938926605652089, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=EN, label=Fig.4, caption=
Wind turbine fault diagnosis flowchart, figureFileSmall=uNGmNWc593A8r9qCCSu7ug==, figureFileBig=d3fhSTGD43MPDFSqK21FBw==, tableContent=null), ArticleFig(id=1240938926714703996, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=CN, label=图4, caption=
风电机组故障诊断流程, figureFileSmall=uNGmNWc593A8r9qCCSu7ug==, figureFileBig=d3fhSTGD43MPDFSqK21FBw==, tableContent=null), ArticleFig(id=1240938926815367297, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=EN, label=Fig.5, caption=
Diagnosis accuracy of WOA-KELM algorithm with different numbers of features, figureFileSmall=6CaerXeWvtjDFv5E+bh9ZQ==, figureFileBig=v7g+PDM11v2TcKxO+G9+Fg==, tableContent=null), ArticleFig(id=1240938926899253386, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=CN, label=图5, caption=
WOA-KELM算法不同特征数量下的诊断准确率, figureFileSmall=6CaerXeWvtjDFv5E+bh9ZQ==, figureFileBig=v7g+PDM11v2TcKxO+G9+Fg==, tableContent=null), ArticleFig(id=1240938926999916687, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=EN, label=Fig.6, caption=
Fitness iteration curve of WOA-KELM algorithm with feature selection, figureFileSmall=llGy9bSNgKY+h5PRBv2cXQ==, figureFileBig=1kLx6wGwSGIUVpdyzbY/FQ==, tableContent=null), ArticleFig(id=1240938927092191378, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=CN, label=图6, caption=
WOA-KELM算法有特征筛选的适应度迭代曲线, figureFileSmall=llGy9bSNgKY+h5PRBv2cXQ==, figureFileBig=1kLx6wGwSGIUVpdyzbY/FQ==, tableContent=null), ArticleFig(id=1240938927226409115, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=EN, label=Fig.7, caption=
Confusion matrix graph of WOA-KELM algorithms, figureFileSmall=C6jvmDRtrtv4ynK2gK6Mnw==, figureFileBig=L8uQjCavKuDxTnZgmDsAFw==, tableContent=null), ArticleFig(id=1240938927318683805, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=CN, label=图7, caption=
WOA-KELM算法的混淆矩阵, figureFileSmall=C6jvmDRtrtv4ynK2gK6Mnw==, figureFileBig=L8uQjCavKuDxTnZgmDsAFw==, tableContent=null), ArticleFig(id=1240938927423541410, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=EN, label=Tab.1, caption=
Main state parameters of fan SCADA
, figureFileSmall=null, figureFileBig=null, tableContent=
| 风机系统 | 参数 | 单位 |
|---|
| 变流系统 | 机舱变频(电源)柜温度 | ℃ |
| 网(机)侧电抗温度 | ℃ |
| 网(机)侧半导体温度 | ℃ |
| 滤波板温度 | ℃ |
| 有功功率 | kW |
| 无功功率 | kVA |
| 最大故障电流 | A |
| 变桨系统 | 变桨电机温度 | ℃ |
| 变桨电机扭矩 | Nm |
| 叶片角度 | (°) |
| 偏航系统 | 偏航变频器温度 | ℃ |
| 偏航功率 | kW |
| 机舱位置 | (°) |
| 传动系统 | 齿轮箱轴承温度 | ℃ |
| 齿轮箱油池温度 | ℃ |
| 发电机系统 | 驱动端发电机轴承温度 | ℃ |
| 非驱动端发电机轴承温度 | ℃ |
| 最大发电机绕组温度 | ℃ |
| 机舱及塔架系统 | 机舱内温度 | ℃ |
| 机舱电池电压 | V |
| 机舱电池温度 | ℃ |
| 平均风速 | m/s |
| 风向 | (°) |
| 环境温度 | ℃ |
), ArticleFig(id=1240938927553564841, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=CN, label=表1, caption=
风机SCADA主要状态参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 风机系统 | 参数 | 单位 |
|---|
| 变流系统 | 机舱变频(电源)柜温度 | ℃ |
| 网(机)侧电抗温度 | ℃ |
| 网(机)侧半导体温度 | ℃ |
| 滤波板温度 | ℃ |
| 有功功率 | kW |
| 无功功率 | kVA |
| 最大故障电流 | A |
| 变桨系统 | 变桨电机温度 | ℃ |
| 变桨电机扭矩 | Nm |
| 叶片角度 | (°) |
| 偏航系统 | 偏航变频器温度 | ℃ |
| 偏航功率 | kW |
| 机舱位置 | (°) |
| 传动系统 | 齿轮箱轴承温度 | ℃ |
| 齿轮箱油池温度 | ℃ |
| 发电机系统 | 驱动端发电机轴承温度 | ℃ |
| 非驱动端发电机轴承温度 | ℃ |
| 最大发电机绕组温度 | ℃ |
| 机舱及塔架系统 | 机舱内温度 | ℃ |
| 机舱电池电压 | V |
| 机舱电池温度 | ℃ |
| 平均风速 | m/s |
| 风向 | (°) |
| 环境温度 | ℃ |
), ArticleFig(id=1240938927641645228, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=EN, label=Tab.2, caption=
Sample selection for fan fault shutdown
, figureFileSmall=null, figureFileBig=null, tableContent=
| 故障部位 | 故障现象 | 故障原因 | 机组编号 |
|---|
| 变流系统 | 变频器一般性故障 | 线路松动 | 39 |
| 变频器一般性故障 | 线路松动 | 41 |
| 变频器一般性故障 | 线路松动 | 44 |
| 变频器一般性故障 | 线路松动 | 67 |
| 变频器检测脱网 | 接线松动 | 49 |
| 发电机系统 | 发电机无转速 | 发电机编码器损坏 | 24 |
| 变频器一般性故障 | 发电机损坏 | 27 |
| 变频器故障 | 发电机损坏 | 59 |
| 发电机转子B相开路 | 发电机损坏 | 35 |
| 发电机转速过小 | 超速继电器损坏 | 55 |
| 变桨系统 | 叶片1顺桨位置超时 | 轮毂接线松动 | 50 |
| 叶轮转速信号不同 | 滑环编码器接线松动 | 21 |
| 叶片2驱动错误 | 变桨柜接线松动 | 28 |
| 叶片开裂 | 变桨轴承损坏 | 54 |
| 叶轮超速刹车 | 支撑杆松动 | 40 |
| 辅助电源系统 | 400 V电源故障 | PLC误动作 | 32 |
| 箱变400 V电源断开 | 变压器温度过高,超温保护 | 50 |
| 电池电压低 | 电池接线松动 | 65 |
| 400 V电源故障 | 电池馈电 | 47 |
| 400 V电池接触器故障 | PLC误报 | 43 |
), ArticleFig(id=1240938927742308525, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=CN, label=表2, caption=
风机故障停机样本选取
, figureFileSmall=null, figureFileBig=null, tableContent=
| 故障部位 | 故障现象 | 故障原因 | 机组编号 |
|---|
| 变流系统 | 变频器一般性故障 | 线路松动 | 39 |
| 变频器一般性故障 | 线路松动 | 41 |
| 变频器一般性故障 | 线路松动 | 44 |
| 变频器一般性故障 | 线路松动 | 67 |
| 变频器检测脱网 | 接线松动 | 49 |
| 发电机系统 | 发电机无转速 | 发电机编码器损坏 | 24 |
| 变频器一般性故障 | 发电机损坏 | 27 |
| 变频器故障 | 发电机损坏 | 59 |
| 发电机转子B相开路 | 发电机损坏 | 35 |
| 发电机转速过小 | 超速继电器损坏 | 55 |
| 变桨系统 | 叶片1顺桨位置超时 | 轮毂接线松动 | 50 |
| 叶轮转速信号不同 | 滑环编码器接线松动 | 21 |
| 叶片2驱动错误 | 变桨柜接线松动 | 28 |
| 叶片开裂 | 变桨轴承损坏 | 54 |
| 叶轮超速刹车 | 支撑杆松动 | 40 |
| 辅助电源系统 | 400 V电源故障 | PLC误动作 | 32 |
| 箱变400 V电源断开 | 变压器温度过高,超温保护 | 50 |
| 电池电压低 | 电池接线松动 | 65 |
| 400 V电源故障 | 电池馈电 | 47 |
| 400 V电池接触器故障 | PLC误报 | 43 |
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Diagnostic accuracy of each algorithm with different sample numbers
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| 样本数 | 故障类型 | ELM | SVM | KELM | WOA-KELM |
|---|
| 125 | 变流系统故障 | 60 | 100 | 100 | 100 |
| 发电机系统故障 | 60 | 60 | 100 | 100 |
| 变桨系统故障 | 40 | 60 | 60 | 60 |
| 辅助电源系统故障 | 60 | 100 | 60 | 100 |
| 非故障 | 100 | 100 | 100 | 100 |
| 故障诊断准确率 | 64.0 | 84.0 | 84.0 | 92.0 |
| 250 | 变流系统故障 | 100 | 100 | 100 | 80 |
| 发电机系统故障 | 20 | 60 | 90 | 100 |
| 变桨系统故障 | 0 | 60 | 70 | 80 |
| 辅助电源系统故障 | 100 | 100 | 70 | 100 |
| 非故障 | 100 | 100 | 100 | 100 |
| 故障诊断准确率 | 64.0 | 84.0 | 86.0 | 92.0 |
| 375 | 变流系统故障 | 100 | 80 | 80 | 60 |
| 发电机系统故障 | 0 | 67 | 93 | 100 |
| 变桨系统故障 | 87 | 0 | 27 | 80 |
| 辅助电源系统故障 | 73 | 100 | 80 | 100 |
| 非故障 | 100 | 100 | 100 | 100 |
| 故障诊断准确率 | 72.0 | 69.0 | 76.0 | 88.0 |
| 500 | 变流系统故障 | 95 | 90 | 85 | 95 |
| 发电机系统故障 | 95 | 25 | 85 | 100 |
| 变桨系统故障 | 45 | 0 | 15 | 85 |
| 辅助电源系统故障 | 30 | 100 | 90 | 100 |
| 非故障 | 100 | 100 | 100 | 100 |
| 故障诊断准确率 | 73.0 | 63.0 | 75.0 | 96.0 |
| 1 000 | 变流系统故障 | 90 | 100 | 45 | 100 |
| 发电机系统故障 | 0 | 23 | 68 | 35 |
| 变桨系统故障 | 0 | 25 | 33 | 20 |
| 辅助电源系统故障 | 100 | 100 | 100 | 100 |
| 非故障 | 100 | 100 | 100 | 100 |
| 故障诊断准确率 | 58 | 70 | 69 | 71 |
| 不同样本平均故障诊断准确率 | 66.0 | 74.0 | 78.0 | 88.0 |
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各算法不同样本数下的诊断准确率
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| 样本数 | 故障类型 | ELM | SVM | KELM | WOA-KELM |
|---|
| 125 | 变流系统故障 | 60 | 100 | 100 | 100 |
| 发电机系统故障 | 60 | 60 | 100 | 100 |
| 变桨系统故障 | 40 | 60 | 60 | 60 |
| 辅助电源系统故障 | 60 | 100 | 60 | 100 |
| 非故障 | 100 | 100 | 100 | 100 |
| 故障诊断准确率 | 64.0 | 84.0 | 84.0 | 92.0 |
| 250 | 变流系统故障 | 100 | 100 | 100 | 80 |
| 发电机系统故障 | 20 | 60 | 90 | 100 |
| 变桨系统故障 | 0 | 60 | 70 | 80 |
| 辅助电源系统故障 | 100 | 100 | 70 | 100 |
| 非故障 | 100 | 100 | 100 | 100 |
| 故障诊断准确率 | 64.0 | 84.0 | 86.0 | 92.0 |
| 375 | 变流系统故障 | 100 | 80 | 80 | 60 |
| 发电机系统故障 | 0 | 67 | 93 | 100 |
| 变桨系统故障 | 87 | 0 | 27 | 80 |
| 辅助电源系统故障 | 73 | 100 | 80 | 100 |
| 非故障 | 100 | 100 | 100 | 100 |
| 故障诊断准确率 | 72.0 | 69.0 | 76.0 | 88.0 |
| 500 | 变流系统故障 | 95 | 90 | 85 | 95 |
| 发电机系统故障 | 95 | 25 | 85 | 100 |
| 变桨系统故障 | 45 | 0 | 15 | 85 |
| 辅助电源系统故障 | 30 | 100 | 90 | 100 |
| 非故障 | 100 | 100 | 100 | 100 |
| 故障诊断准确率 | 73.0 | 63.0 | 75.0 | 96.0 |
| 1 000 | 变流系统故障 | 90 | 100 | 45 | 100 |
| 发电机系统故障 | 0 | 23 | 68 | 35 |
| 变桨系统故障 | 0 | 25 | 33 | 20 |
| 辅助电源系统故障 | 100 | 100 | 100 | 100 |
| 非故障 | 100 | 100 | 100 | 100 |
| 故障诊断准确率 | 58 | 70 | 69 | 71 |
| 不同样本平均故障诊断准确率 | 66.0 | 74.0 | 78.0 | 88.0 |
), ArticleFig(id=1240938928115601594, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222543591923245451, language=EN, label=Tab.4, caption=
Diagnostic accuracy of WOA-KELM algorithm under different sample numbers
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| 样本数量 | 125 | 250 | 375 | 500 | 1 000 |
|---|
| 变流系统故障/% | 100 | 100 | 100 | 95 | 93 |
| 发电机系统故障/% | 100 | 100 | 100 | 100 | 100 |
| 变桨系统故障/% | 60 | 80 | 80 | 85 | 35 |
| 辅助电源系统故障/% | 100 | 100 | 100 | 100 | 100 |
| 非故障/% | 100 | 100 | 100 | 100 | 100 |
| 平均诊断准确率/% | 92.0 | 96.0 | 96.0 | 96.0 | 86.0 |
| 最佳特征个数 | 24 | 38 | 18 | 24 | 26 |
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不同样本数下WOA-KELM算法的诊断准确率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 样本数量 | 125 | 250 | 375 | 500 | 1 000 |
|---|
| 变流系统故障/% | 100 | 100 | 100 | 95 | 93 |
| 发电机系统故障/% | 100 | 100 | 100 | 100 | 100 |
| 变桨系统故障/% | 60 | 80 | 80 | 85 | 35 |
| 辅助电源系统故障/% | 100 | 100 | 100 | 100 | 100 |
| 非故障/% | 100 | 100 | 100 | 100 | 100 |
| 平均诊断准确率/% | 92.0 | 96.0 | 96.0 | 96.0 | 86.0 |
| 最佳特征个数 | 24 | 38 | 18 | 24 | 26 |
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