Article(id=1154037277324989229, tenantId=1146029695717560320, journalId=1146031654075715584, issueId=1154037268550509325, articleNumber=null, orderNo=null, doi=10.13234/j.issn.2095-2805.2024.4.251, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1640793600000, receivedDateStr=2021-12-30, revisedDate=1646236800000, revisedDateStr=2022-03-03, acceptedDate=1648051200000, acceptedDateStr=2022-03-24, onlineDate=1753073527889, onlineDateStr=2025-07-21, pubDate=1722268800000, pubDateStr=2024-07-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753073527889, onlineIssueDateStr=2025-07-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753073527889, creator=13701087609, updateTime=1753073527889, updator=13701087609, issue=Issue{id=1154037268550509325, tenantId=1146029695717560320, journalId=1146031654075715584, year='2024', volume='22', issue='4', pageStart='1', pageEnd='338', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1753073525798, creator=13701087609, updateTime=1753780979931, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1157004546338804561, tenantId=1146029695717560320, journalId=1146031654075715584, issueId=1154037268550509325, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1157004546338804562, tenantId=1146029695717560320, journalId=1146031654075715584, issueId=1154037268550509325, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=251, endPage=259, ext={EN=ArticleExt(id=1154037277912191793, articleId=1154037277324989229, tenantId=1146029695717560320, journalId=1146031654075715584, language=EN, title=Remaining Useful Life Prediction of Simulation Substation Batteries Based on VMD and Bat-KELM, columnId=1152281491788100462, journalTitle=Journal of Power Supply, columnName=Battery and Energy Storage, runingTitle=null, highlight=null, articleAbstract=
Simulation substation batteries often work under discontinuous operation conditions, which will result in capacity regeneration of batteries during their performance degradation. The degradation of batteries shows nonstationary and random characteristics, leading to a low prediction accuracy for the remaining useful life(RUL). Aimed at the problem of RUL prediction of batteries with capacity regeneration, a prediction method is proposed based on variational mode decomposition(VMD) and bat optimized kernel extreme learning machine(Bat-KELM). First, VMD is employed to decompose the battery state-of-health(SOH) time series into overall degradation components and capacity regeneration components. Then, Bat-KELM is used to construct prediction models of each component, so that the prediction accuracy of component trend is improved. At last, the prediction results of all components are blended together to yield the accurate battery SOH prediction results as well as the RUL results. The proposed method is applied to the analysis of battery degradation instance data, and results show its superiority in terms of prediction accuracy compared with the KELM and VMD-KELM models.
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仿真变电站蓄电池的工作模式呈现间歇非连续性,导致电池性能在退化过程中存在容量再生现象,退化规律具有非平稳性和随机性,增大了蓄电池精确剩余寿命RUL(remaining useful life)的难度。针对存在容量再生现象的蓄电池剩余寿命预测问题,提出了变分模态分解 VMD(variational mode decomposition)和蝙蝠(Bat)优化核极限学习机 KELM(kernel extreme learning machine)组合的预测方法。基于 VMD 将蓄电池健康状态SOH(state of health)时间序列分解为整体退化分量和容量再生分量;利用 Bat优化 KELM构建各分量预测模型,以提高分量趋势预测精度;通过各分量独立预测结果的叠加,得到精确的蓄电池健康状态及剩余寿命预测值。将该方法应用于蓄电池退化数据实例分析中,结果表明该方法相较于KELM模型及VMD-KELM模型,预测精度更高,验证了该方法的优越性。
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 |
任罡(1983-),男,硕士,高级工程师。研究方向:电网稳定运行及调控、智能检测与控制。E-mail:cbs20151216@163.com。 |
季宁(1985-),女,本科,高级讲师。研究方向:电网调控运行与电力系统仿真、智能检测与控制。E-mail: gitanjali1985@163.com。
胡晓丽(1980-),女,硕士,高级讲师。研究方向:电力系统安全监测。E-mail: foxhuxiaoli@163.com。
李世倩(1971-),男,本科,高级讲师。研究方向:电网调控仿真和继电保护仿真。Email: lsq561@sina.com。
张洁华(1989-),女,硕士,中级讲师。研究方向:电力系统储能系统规划与配置技术。E-mail: 88264833@qq.com。
吴祎(1990-),女,中国电源学会会员,通信作者,博士,讲师。研究方向:蓄电池健康监测技术。E-mail: yiw@njupt.edu.cn。
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任罡(1983-),男,硕士,高级工程师。研究方向:电网稳定运行及调控、智能检测与控制。E-mail:cbs20151216@163.com。
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任罡(1983-),男,硕士,高级工程师。研究方向:电网稳定运行及调控、智能检测与控制。E-mail:cbs20151216@163.com。
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季宁(1985-),女,本科,高级讲师。研究方向:电网调控运行与电力系统仿真、智能检测与控制。E-mail: gitanjali1985@163.com。
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季宁(1985-),女,本科,高级讲师。研究方向:电网调控运行与电力系统仿真、智能检测与控制。E-mail: gitanjali1985@163.com。
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胡晓丽(1980-),女,硕士,高级讲师。研究方向:电力系统安全监测。E-mail: foxhuxiaoli@163.com。
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胡晓丽(1980-),女,硕士,高级讲师。研究方向:电力系统安全监测。E-mail: foxhuxiaoli@163.com。
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李世倩(1971-),男,本科,高级讲师。研究方向:电网调控仿真和继电保护仿真。Email: lsq561@sina.com。
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李世倩(1971-),男,本科,高级讲师。研究方向:电网调控仿真和继电保护仿真。Email: lsq561@sina.com。
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张洁华(1989-),女,硕士,中级讲师。研究方向:电力系统储能系统规划与配置技术。E-mail: 88264833@qq.com。
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张洁华(1989-),女,硕士,中级讲师。研究方向:电力系统储能系统规划与配置技术。E-mail: 88264833@qq.com。
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2 College of Automation Nanjing University of Posts and Telecommunications Nanjing 210023 China
3 College of Artificial Intelligence Nanjing University of Posts and Telecommunications Nanjing 210023 China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1154048216988373832, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154037277324989229, authorId=1154048216837378878, language=CN, stringName=吴祎, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2 南京邮电大学 自动化学院 南京 210023
3 南京邮电大学 人工智能学院 南京 210023, bio={"content":"
吴祎(1990-),女,中国电源学会会员,通信作者,博士,讲师。研究方向:蓄电池健康监测技术。E-mail: yiw@njupt.edu.cn。
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吴祎(1990-),女,中国电源学会会员,通信作者,博士,讲师。研究方向:蓄电池健康监测技术。E-mail: yiw@njupt.edu.cn。
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Battery RUL prediction process based on VMD and Bat-KELM, figureFileSmall=v+3fGvDI75e7o7kWxcSOLQ==, figureFileBig=gbXBCOADiFPbq5pdUwhqdQ==, tableContent=null), ArticleFig(id=1154048219492373365, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154037277324989229, language=CN, label=图1, caption=
基于 VMD 和 Bat-KELM 的蓄电池 RUL 预测流程, figureFileSmall=v+3fGvDI75e7o7kWxcSOLQ==, figureFileBig=gbXBCOADiFPbq5pdUwhqdQ==, tableContent=null), ArticleFig(id=1154048219542705014, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154037277324989229, language=EN, label=Fig. 2, caption=
Curves of battery $\mathrm{{SOH}}$ with number of cycles, figureFileSmall=fHoUfgU8JIn1LSdLonVbmg==, figureFileBig=+NFZn/5Nj/t8L4LWWIWMRQ==, tableContent=null), ArticleFig(id=1154048219597230967, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154037277324989229, language=CN, label=图2, caption=
蓄电池 $\mathrm{{SOH}}$ 随循环周期的变化曲线, figureFileSmall=fHoUfgU8JIn1LSdLonVbmg==, figureFileBig=+NFZn/5Nj/t8L4LWWIWMRQ==, tableContent=null), ArticleFig(id=1154048219651756920, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154037277324989229, language=EN, label=Fig. 3, caption=
Battery SOH decomposition curves based on VMD, figureFileSmall=1O2LxKWdeGIXyDMA5CmKcg==, figureFileBig=9nC4PCiQkgz4DxSYUIfqEg==, tableContent=null), ArticleFig(id=1154048219702088569, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154037277324989229, language=CN, label=图3, caption=
基于 $\mathrm{{VMD}}$ 的蓄电池 $\mathrm{{SOH}}$ 分解曲线, figureFileSmall=1O2LxKWdeGIXyDMA5CmKcg==, figureFileBig=9nC4PCiQkgz4DxSYUIfqEg==, tableContent=null), ArticleFig(id=1154048219773391739, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154037277324989229, language=EN, label=Fig. 4, caption=
Battery SOH prediction curves based on three methods, figureFileSmall=x4jjxCX6O00Q6DibCd0kQw==, figureFileBig=V0IwXB3N6YDOZbyswvAKdA==, tableContent=null), ArticleFig(id=1154048219844694909, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154037277324989229, language=CN, label=图4, caption=
基于 3 种方法的蓄电池 $\mathrm{{SOH}}$ 预测曲线, figureFileSmall=x4jjxCX6O00Q6DibCd0kQw==, figureFileBig=V0IwXB3N6YDOZbyswvAKdA==, tableContent=null), ArticleFig(id=1154048219962135423, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154037277324989229, language=EN, label=Fig. 5, caption=
Battery B5 SOH prediction curves based on three methods at different prediction cycles, figureFileSmall=m0C2ZfAzf9AgoX2GQnlbsA==, figureFileBig=a+wQlD6vdUNjPT89ktOT5w==, tableContent=null), ArticleFig(id=1154048220012467073, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154037277324989229, language=CN, label=图5, caption=
不同预测周期点、基于 3 种方法的 B5 蓄电池 $\mathrm{{SOH}}$ 预测曲线, figureFileSmall=m0C2ZfAzf9AgoX2GQnlbsA==, figureFileBig=a+wQlD6vdUNjPT89ktOT5w==, tableContent=null), ArticleFig(id=1154048220062798723, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154037277324989229, language=EN, label=Tab. 1, caption=
Evaluation indexes for battery prediction performance based on three methods, figureFileSmall=null, figureFileBig=null, tableContent=
| 电池 | 预测方法 | RMSE | MAPE | RUL 真实值 | RUL 预测值 | RUL 预测绝对误差 |
| B5 | KELM | 0.0927 | 0.1109 | 55 | 31 | 24 |
| VMD+KELM | 0.0783 | 0.0941 | 55 | 32 | 23 |
| VMD+Bat+KELM | 0.0468 | 0.0553 | 55 | 39 | 16 |
| B6 | KELM | 0.0694 | 0.1002 | 39 | 13 | 26 |
| VMD+KELM | 0.0462 | 0.0659 | 39 | 25 | 14 |
| VMD+Bat+KELM | 0.0176 | 0.0250 | 39 | 46 | 7 |
| B7 | KELM | 0.0688 | 0.0786 | 96 | 48 | 48 |
| VMD+KELM | 0.0353 | 0.0397 | 96 | 66 | 30 |
| VMD+Bat+KELM | 0.0283 | 0.0317 | 96 | 71 | 25 |
| B18 | KELM | 0.0477 | 0.0575 | 27 | 13 | 14 |
| VMD+KELM | 0.0387 | 0.0459 | 27 | 15 | 12 |
| VMD+Bat+KELM | 0.0164 | 0.0203 | 27 | 33 | 6 |
), ArticleFig(id=1154048220159267719, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154037277324989229, language=CN, label=表1, caption=
基于 3 种方法的蓄电池预测性能评价指标, figureFileSmall=null, figureFileBig=null, tableContent=
| 电池 | 预测方法 | RMSE | MAPE | RUL 真实值 | RUL 预测值 | RUL 预测绝对误差 |
| B5 | KELM | 0.0927 | 0.1109 | 55 | 31 | 24 |
| VMD+KELM | 0.0783 | 0.0941 | 55 | 32 | 23 |
| VMD+Bat+KELM | 0.0468 | 0.0553 | 55 | 39 | 16 |
| B6 | KELM | 0.0694 | 0.1002 | 39 | 13 | 26 |
| VMD+KELM | 0.0462 | 0.0659 | 39 | 25 | 14 |
| VMD+Bat+KELM | 0.0176 | 0.0250 | 39 | 46 | 7 |
| B7 | KELM | 0.0688 | 0.0786 | 96 | 48 | 48 |
| VMD+KELM | 0.0353 | 0.0397 | 96 | 66 | 30 |
| VMD+Bat+KELM | 0.0283 | 0.0317 | 96 | 71 | 25 |
| B18 | KELM | 0.0477 | 0.0575 | 27 | 13 | 14 |
| VMD+KELM | 0.0387 | 0.0459 | 27 | 15 | 12 |
| VMD+Bat+KELM | 0.0164 | 0.0203 | 27 | 33 | 6 |
), ArticleFig(id=1154048220217987976, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154037277324989229, language=EN, label=Tab. 2, caption=
Evaluation indexes for battery B5 prediction performance based on three methods at different prediction cycles, figureFileSmall=null, figureFileBig=null, tableContent=
| 预测起始 周期 | 预测方法 | RMSE | MAPE | RUL 真实值 | RUL 预测值 | RUL 预测 绝对误差 |
| 70 | KELM | 0.0927 | 0.1109 | 55 | 31 | 24 |
| VMD+KELM | 0.0783 | 0.0941 | 55 | 32 | 23 |
| VMD+Bat+KELM | 0.0468 | 0.0553 | 55 | 39 | 16 |
| 80 | KELM | 0.0731 | 0.0894 | 45 | 25 | 20 |
| VMD+KELM | 0.0582 | 0.0716 | 45 | 27 | 18 |
| VMD+Bat+KELM | 0.0269 | 0.0347 | 45 | 61 | 16 |
| 90 | KELM | 0.0545 | 0.0678 | 35 | 19 | 16 |
| VMD+KELM | 0.0373 | 0.0466 | 35 | 22 | 13 |
| VMD+Bat+KELM | 0.0147 | 0.0191 | 35 | 40 | 5 |
| 100 | KELM | 0.0337 | 0.0424 | 25 | 14 | 11 |
| VMD+KELM | 0.0223 | 0.0278 | 25 | 17 | 8 |
| VMD+Bat+KELM | 0.0121 | 0.0158 | 25 | 29 | 4 |
), ArticleFig(id=1154048220276708233, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1154037277324989229, language=CN, label=表2, caption=
不同预测周期点, 基于 3 种方法的 B5 蓄电池预测性能评价指标, figureFileSmall=null, figureFileBig=null, tableContent=
| 预测起始 周期 | 预测方法 | RMSE | MAPE | RUL 真实值 | RUL 预测值 | RUL 预测 绝对误差 |
| 70 | KELM | 0.0927 | 0.1109 | 55 | 31 | 24 |
| VMD+KELM | 0.0783 | 0.0941 | 55 | 32 | 23 |
| VMD+Bat+KELM | 0.0468 | 0.0553 | 55 | 39 | 16 |
| 80 | KELM | 0.0731 | 0.0894 | 45 | 25 | 20 |
| VMD+KELM | 0.0582 | 0.0716 | 45 | 27 | 18 |
| VMD+Bat+KELM | 0.0269 | 0.0347 | 45 | 61 | 16 |
| 90 | KELM | 0.0545 | 0.0678 | 35 | 19 | 16 |
| VMD+KELM | 0.0373 | 0.0466 | 35 | 22 | 13 |
| VMD+Bat+KELM | 0.0147 | 0.0191 | 35 | 40 | 5 |
| 100 | KELM | 0.0337 | 0.0424 | 25 | 14 | 11 |
| VMD+KELM | 0.0223 | 0.0278 | 25 | 17 | 8 |
| VMD+Bat+KELM | 0.0121 | 0.0158 | 25 | 29 | 4 |
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