Article(id=1241081034872246913, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1241081025531540408, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2024.04.018, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1716566400000, receivedDateStr=2024-05-25, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773826376883, onlineDateStr=2026-03-18, pubDate=1722441600000, pubDateStr=2024-08-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773826376883, onlineIssueDateStr=2026-03-18, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773826376883, creator=13701087609, updateTime=1773826376883, updator=13701087609, issue=Issue{id=1241081025531540408, tenantId=1146029695717560320, journalId=1235980550691926019, year='2024', volume='44', issue='4', pageStart='1', pageEnd='258', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773826374657, creator=13701087609, updateTime=1773827517159, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241085817590960730, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1241081025531540408, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241085817590960731, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1241081025531540408, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=95, endPage=99, ext={EN=ArticleExt(id=1241081035165848206, articleId=1241081034872246913, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Prediction of Remaining Useful Life of Lithium-Ion Batteries Based on PCA-GWO-GRU, columnId=1241081026567533498, journalTitle=Mining and Metallurgical Engineering, columnName=SPECIAL ISSUE: BATTERY MATERIALS, runingTitle=null, highlight=null, articleAbstract=
In order to improve the accuracy of the GRU neural network model in predicting the remaining useful life (RUL) of lithium-ion batteries, the GRU model was optimized based on PCA-GWO and then applied in the prediction. The results show that compared with the traditional GRU model, the PCA-GWO-GRU model presents higher prediction accuracy. When the starting point of the prediction is 90% of the original data, the prediction accuracy can reach the highest, with the corresponding RMSE of 0.004 9, MAE of 0.003 6, and R2 of 0.986 3.
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为了提高GRU神经网络模型预测锂离子电池剩余使用寿命时的准确性,提出基于PCA-GWO优化的GRU模型,并应用于锂离子电池剩余寿命预测。结果表明,与传统GRU模型相比,经PCA-GWO算法优化的GRU模型具有更高的预测精度。预测起始点为原始数据90%时,预测精度达到最大,对应的均方根误差RMSE为0.0049、平均绝对误差MAE为0.0036、决定系数R2为0.9863。
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李钰(2000—),男,江西宜春人,硕士研究生,主要研究方向为锂离子电池拆解及寿命研究。E-mail:1102597939@qq.com
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李钰(2000—),男,江西宜春人,硕士研究生,主要研究方向为锂离子电池拆解及寿命研究。E-mail:1102597939@qq.com
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电力系统及其自动化学报,
2020,
32(5): 24-29., articleTitle=基于PCA-GPQR的电网负荷短期概率预测, refAbstract=null)], funds=[Fund(id=1241081054396732278, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241081034872246913, awardId=2023GK1070, language=CN, fundingSource=湖南省科技重大专项(2023GK1070), fundOrder=null, country=null), Fund(id=1241081054518367101, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241081034872246913, awardId=2021RC4046, language=CN, fundingSource=湖南省科技创新领军人才(2021RC4046), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1241081046846984651, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241081034872246913, xref=null, ext=[AuthorCompanyExt(id=1241081046855373260, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241081034872246913, companyId=1241081046846984651, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Changsha Research Institute of Mining and Metallurgy Co, Ltd, Changsha 410012, Hunan, China), AuthorCompanyExt(id=1241081046859567565, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241081034872246913, companyId=1241081046846984651, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=长沙矿冶研究院有限责任公司,湖南 长沙 410012)])], figs=[ArticleFig(id=1241081051309724408, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241081034872246913, language=EN, label=null, caption=null, figureFileSmall=v9jV4T28BFL5DQNVl1EHVQ==, figureFileBig=ux8kooWnabXeRMzQymWJjg==, tableContent=null), ArticleFig(id=1241081052773536514, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241081034872246913, language=CN, label=图1, caption=
GRU循环体单元内部结构, figureFileSmall=v9jV4T28BFL5DQNVl1EHVQ==, figureFileBig=ux8kooWnabXeRMzQymWJjg==, tableContent=null), ArticleFig(id=1241081053062943519, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241081034872246913, language=EN, label=null, caption=null, figureFileSmall=NOAdkEmCA+lR6DVRtczVPw==, figureFileBig=q1VWIbMT/NDKGlje+Iipzg==, tableContent=null), ArticleFig(id=1241081053163606826, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241081034872246913, language=CN, label=图2, caption=
灰狼的社会等级制度, figureFileSmall=NOAdkEmCA+lR6DVRtczVPw==, figureFileBig=q1VWIbMT/NDKGlje+Iipzg==, tableContent=null), ArticleFig(id=1241081053276853040, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241081034872246913, language=EN, label=null, caption=null, figureFileSmall=KzPoLIVpPHliInXiY/B8Wg==, figureFileBig=Wx3hcKxQ6iisrLBuxy79Uw==, tableContent=null), ArticleFig(id=1241081053398487864, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241081034872246913, language=CN, label=图3, caption=
b1电池预测效果对比, figureFileSmall=KzPoLIVpPHliInXiY/B8Wg==, figureFileBig=Wx3hcKxQ6iisrLBuxy79Uw==, tableContent=null), ArticleFig(id=1241081053532705597, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241081034872246913, language=EN, label=null, caption=null, figureFileSmall=9j2kVuaiRBp7MIzk8MamOA==, figureFileBig=MD+ZNsMpfEhxFLcCQ8U3lA==, tableContent=null), ArticleFig(id=1241081053679506248, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241081034872246913, language=CN, label=图4, caption=
b2电池不同预测起点的预测曲线(a)60%;(b)70%;(c)80%;(d)90%
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| 电池名称 | 预测方法 | RMSE | MAE | R2 |
|---|
| b1 | LSTM | 0.028 9 | 0.027 1 | 0.863 3 |
| GRU | 0.021 3 | 0.019 4 | 0.926 1 |
| VMD-PSO-GRU | 0.020 2 | 0.019 1 | 0.933 4 |
| PCA-GWO-GRU | 0.015 1 | 0.014 3 | 0.962 9 |
| b2 | LSTM | 0.032 1 | 0.030 3 | 0.835 4 |
| GRU | 0.020 7 | 0.018 9 | 0.931 2 |
| VMD-PSO-GRU | 0.018 4 | 0.017 5 | 0.945 3 |
| PCA-GWO-GRU | 0.012 1 | 0.011 4 | 0.976 4 |
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不同预测方法的预测评价指标
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| 电池名称 | 预测方法 | RMSE | MAE | R2 |
|---|
| b1 | LSTM | 0.028 9 | 0.027 1 | 0.863 3 |
| GRU | 0.021 3 | 0.019 4 | 0.926 1 |
| VMD-PSO-GRU | 0.020 2 | 0.019 1 | 0.933 4 |
| PCA-GWO-GRU | 0.015 1 | 0.014 3 | 0.962 9 |
| b2 | LSTM | 0.032 1 | 0.030 3 | 0.835 4 |
| GRU | 0.020 7 | 0.018 9 | 0.931 2 |
| VMD-PSO-GRU | 0.018 4 | 0.017 5 | 0.945 3 |
| PCA-GWO-GRU | 0.012 1 | 0.011 4 | 0.976 4 |
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| 预测起点/% | RMSE | MAE | R2 |
|---|
| 60 | 0.027 4 | 0.021 8 | 0.974 7 |
| 70 | 0.020 6 | 0.018 7 | 0.974 8 |
| 80 | 0.012 1 | 0.011 4 | 0.976 4 |
| 90 | 0.004 9 | 0.003 6 | 0.986 3 |
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不同预测起点在测试集电池b2上的性能展示
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| 预测起点/% | RMSE | MAE | R2 |
|---|
| 60 | 0.027 4 | 0.021 8 | 0.974 7 |
| 70 | 0.020 6 | 0.018 7 | 0.974 8 |
| 80 | 0.012 1 | 0.011 4 | 0.976 4 |
| 90 | 0.004 9 | 0.003 6 | 0.986 3 |
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