Article(id=1190597295977677602, tenantId=1146029695717560320, journalId=1190306094246359042, issueId=1190594635056689366, articleNumber=null, orderNo=null, doi=10.19595/j.cnki.1000-6753.tces.240706, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1714924800000, receivedDateStr=2024-05-06, revisedDate=1728316800000, revisedDateStr=2024-10-08, acceptedDate=null, acceptedDateStr=null, onlineDate=1761790115589, onlineDateStr=2025-10-30, pubDate=1746806400000, pubDateStr=2025-05-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1761790115589, onlineIssueDateStr=2025-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1761790115589, creator=13701087609, updateTime=1761790115589, updator=13701087609, issue=Issue{id=1190594635056689366, tenantId=1146029695717560320, journalId=1190306094246359042, year='2025', volume='40', issue='9', pageStart='2679', pageEnd='3012', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1761789481176, creator=13701087609, updateTime=1761791537510, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1190603259996946565, tenantId=1146029695717560320, journalId=1190306094246359042, issueId=1190594635056689366, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1190603259996946566, tenantId=1146029695717560320, journalId=1190306094246359042, issueId=1190594635056689366, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=2982, endPage=2995, ext={EN=ArticleExt(id=1190597296174809893, articleId=1190597295977677602, tenantId=1146029695717560320, journalId=1190306094246359042, language=EN, title=Prediction of State of Charge for Energy Storage Lithium-Ion Batteries Based on CNN-LSTM-AM Model, columnId=null, journalTitle=Transactions of China Electrotechnical Society, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Accurate prediction of the battery state of charge (SOC) is of great significance to improve the utilization efficiency and safety performance of the battery, and the monitoring of the battery state of charge is very important to help prevent overcharge and overdischarge accidents. The traditional SOC prediction methods are highly dependent on the mechanism model and statistical model, and have problems such as sensitive outliers and limited practical accuracy. In this study, a CNN-LSTM-AM (convolutional neural network - long short term memory neural network - attention mechanism) model is proposed to predict SOC variation trend through battery measurable variables.
The model first uses a one-dimensional convolutional neural network to extract spatial features of measurable variables, including battery current, voltage, temperature and average voltage, and then sends them to bidirectional long and short time memory for time series analysis. Finally, the attention mechanism is introduced to screen key features, reduce the redundancy of feature data, and improve the accuracy and generalization of the model. In addition, CNN-LSTM-AM model adopts rime optimization algorithm to optimize the hyperparameters in the training process, which effectively improves the training efficiency and reduces the training cost.
The actual evaluation on CALCE (Center for Advanced Life Cycle Engineering) data set of lithium iron phosphate shows that the attention mechanism can effectively improve the training performance of the prediction model, and the rime optimization algorithm adopted can help reduce the model hyperparameters, so as to obtain higher prediction accuracy. The performance of CNN-LSTM-AM model was tested under different temperature conditions, and both RMSE and MAE were less than 1%, which was sufficient to confirm the feasibility of the model to predict SOC. In addition, even if the initial SOC is uncertain, the proposed CNN-LSTM-AM model can still accurately track SOC trend changes, and the overall prediction accuracy reaches RMSE<1.5% and MAE<1.5%. The RMSE and MAE results of the network proposed in this study are smaller than those of CNN-LSTM and CNN-LSTM-AM. It shows strong robustness and generalization ability. Finally, in order to comprehensively compare the performance of different SOC prediction methods, the CNN-LSTM-AM model proposed in this study is compared with other experimental results. It can be seen that the method proposed in this study has significantly lower RMSE compared with AT-CNN-LSTM. At the same time, considering that the proposed method uses less training set data, we can also see the advantages of the designed network. Compared with EI-LSTM-CO(extended input-LSTM-constrained output), it can be found that the error is close. In addition, EI-LSTM-CO performs some post-processing on the predicted SOC, which can also reflect the superiority of the proposed method.
The following conclusions are drawn from the simulation analysis: (1) A CNN-LSTM-AM model is proposed and applied to the SOC prediction task of battery, which can effectively capture important input features and improve the prediction accuracy. (2) Design a rime optimization algorithm, which can automatically search the optimal solution of CNN-LSTM-AM model, effectively reduce the time cost of hyperparameter optimization. (3) The influence of different ambient temperatures and initial SOC values on the prediction accuracy of CNN-LSTM-AM was studied, and the performance of CNN-LSTM-AM was compared with that of traditional prediction models to verify its strong robustness and high generalization ability.
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准确地预测电池荷电状态(SOC)对于提高电池的利用效率及安全性能具有重要意义。传统电池SOC预测方法高度依赖机理模型和统计模型,存在异常值敏感、实践精度受限等问题。该文提出一种卷积神经网络-长短时记忆神经网络-注意力机制(CNN-LSTM-AM)模型,通过电池可测变量预测SOC变化趋势。该模型首先利用一维卷积神经网络(CNN)提取可测变量的空间特征;然后将其送至长短时记忆(LSTM)进行时间序列分析;最后引入注意力机制(AM)筛选关键特征,并降低特征数据冗余程度。此外,CNN-LSTM-AM模型在训练过程中采用雾凇优化算法(RIME)进行超参数寻优,有效地提高训练效率、降低训练成本。在磷酸铁锂公开数据集上开展实践测评,结果表明,基于CNN-LSTM-AM模型的电池SOC预测性能良好,优于传统时间序列预测方法,其方均根误差为0.64%、平均绝对误差为0.52%(25℃)。此外,该模型适用于动态工况下的电池状态预测,具有较高的预测精度和鲁棒性。
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杜 伟 男,1998年生,硕士研究生,研究方向为储能电池的状态估计。E-mail:220210465@seu.edu.cn
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杜 伟 男,1998年生,硕士研究生,研究方向为储能电池的状态估计。E-mail:220210465@seu.edu.cn
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21(2): 1-15., articleTitle=基于注意力机制和CNN-LSTM融合模型的锂电池SOC预测, refAbstract=null), Reference(id=1190723892546253304, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, doi=null, pmid=null, pmcid=null, year=2022, volume=21, issue=2, pageStart=1, pageEnd=15, url=null, language=null, rfNumber=[26], rfOrder=38, authorNames=Zhang Shuaitao, Jiang Pinqun, Song Shuxiang, journalName=Journal of Power Supply, refType=null, unstructuredReference=
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21(2): 1-15., articleTitle=SOC prediction for lithium battery based on fusion model of attention mechanism and CNN-LSTM, refAbstract=null)], funds=[Fund(id=1190723886498066896, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, awardId=2023YFB4102904, language=CN, fundingSource=国家重点研发计划(2023YFB4102904), fundOrder=null, country=null), Fund(id=1190723886581952977, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, awardId=D2022FK080, language=CN, fundingSource=低碳智能燃煤发电与超净排放全国重点实验室开放课题(D2022FK080), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1190723874997285240, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, xref=null, ext=[AuthorCompanyExt(id=1190723875005673849, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, companyId=1190723874997285240, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. School of Energy and Environment Southeast University Nanjing 210096 China), AuthorCompanyExt(id=1190723875014062458, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, companyId=1190723874997285240, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.东南大学能源与环境学院 南京 210096)]), AuthorCompany(id=1190723875110531451, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, xref=null, ext=[AuthorCompanyExt(id=1190723875118920060, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, companyId=1190723875110531451, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2. China Energy Science and Technology Research Institute Co. Ltd Nanjing 210023 China), AuthorCompanyExt(id=1190723875123114365, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, companyId=1190723875110531451, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.国家能源集团科学技术研究院有限公司 南京 210023)]), AuthorCompany(id=1190723875215389055, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, xref=null, ext=[AuthorCompanyExt(id=1190723875223777664, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, companyId=1190723875215389055, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=3. School of Information and Communication Engineering Nanjing Institute of Technology Nanjing 211167 China), AuthorCompanyExt(id=1190723875232166273, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, companyId=1190723875215389055, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=3.南京工程学院信息与通信工程学院 南京 211167)])], figs=[ArticleFig(id=1190723879841706406, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Fig.1, caption=
Technical roadmap of this study, figureFileSmall=vUITpa1sq0CIvx+0ZJNPlA==, figureFileBig=eCZPYFMNVBr9vUDQTExdMg==, tableContent=null), ArticleFig(id=1190723879984312743, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=图1, caption=
本文技术路线, figureFileSmall=vUITpa1sq0CIvx+0ZJNPlA==, figureFileBig=eCZPYFMNVBr9vUDQTExdMg==, tableContent=null), ArticleFig(id=1190723880122724776, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Fig.2, caption=
CNN-LSTM-AM framework, figureFileSmall=iGUJZOv5m5oq+ukt8Hmr+A==, figureFileBig=7otsn3LGm417y2IfvBI4Lg==, tableContent=null), ArticleFig(id=1190723880340828585, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=图2, caption=
CNN-LSTM-AM模型框架, figureFileSmall=iGUJZOv5m5oq+ukt8Hmr+A==, figureFileBig=7otsn3LGm417y2IfvBI4Lg==, tableContent=null), ArticleFig(id=1190723880424714666, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Fig.3, caption=
CNN model structure, figureFileSmall=5klEFRwoDows6/PXIQvj0w==, figureFileBig=6REvv/PfjqGeddLLTMuLhQ==, tableContent=null), ArticleFig(id=1190723880525377963, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=图3, caption=
CNN模型结构, figureFileSmall=5klEFRwoDows6/PXIQvj0w==, figureFileBig=6REvv/PfjqGeddLLTMuLhQ==, tableContent=null), ArticleFig(id=1190723880701538732, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Fig.4, caption=
Structure diagram of LSTM network, figureFileSmall=WG7AhN/0KecfsD4LSHBiDg==, figureFileBig=rJqkITOxW5StNVKbAJA0lQ==, tableContent=null), ArticleFig(id=1190723880802202029, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=图4, caption=
LSTM网络结构, figureFileSmall=WG7AhN/0KecfsD4LSHBiDg==, figureFileBig=rJqkITOxW5StNVKbAJA0lQ==, tableContent=null), ArticleFig(id=1190723880928031150, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Fig.5, caption=
Basic structure of a bidirectional LSTM, figureFileSmall=2kkSuapSOT9faB0EgEuDOw==, figureFileBig=x1Q1t49Y4q2JS4SG+dM4HQ==, tableContent=null), ArticleFig(id=1190723881238409647, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=图5, caption=
双向LSTM的基本结构, figureFileSmall=2kkSuapSOT9faB0EgEuDOw==, figureFileBig=x1Q1t49Y4q2JS4SG+dM4HQ==, tableContent=null), ArticleFig(id=1190723881527816624, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Fig.6, caption=
Attention mechanism structure, figureFileSmall=20iilV0uyc7h7gcRHur+pQ==, figureFileBig=IhMIXy5kJVSmxd2xy7PXXA==, tableContent=null), ArticleFig(id=1190723881603314097, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=图6, caption=
注意力机制结构, figureFileSmall=20iilV0uyc7h7gcRHur+pQ==, figureFileBig=IhMIXy5kJVSmxd2xy7PXXA==, tableContent=null), ArticleFig(id=1190723881766891954, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Fig.7, caption=
RIME overall flow chart, figureFileSmall=JA4ZFxBezfuedkLw0wqdsw==, figureFileBig=+A0Q+CGEd2zMpZI1ZH/aUw==, tableContent=null), ArticleFig(id=1190723881880138163, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=图7, caption=
RIME整体流程, figureFileSmall=JA4ZFxBezfuedkLw0wqdsw==, figureFileBig=+A0Q+CGEd2zMpZI1ZH/aUw==, tableContent=null), ArticleFig(id=1190723881997578676, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Fig.8, caption=
Current,voltage, temperature and average voltage of DST,FUDS and US06 at 25℃, figureFileSmall=3sRAqLigfHPNGWjxt4dzXw==, figureFileBig=xdg0ahIIUba9YABaVSrZrQ==, tableContent=null), ArticleFig(id=1190723882085659061, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=图8, caption=
25℃下DST、FUDS和US06的电流、电压、温度和平均电压, figureFileSmall=3sRAqLigfHPNGWjxt4dzXw==, figureFileBig=xdg0ahIIUba9YABaVSrZrQ==, tableContent=null), ArticleFig(id=1190723882257625526, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Fig.9, caption=
SOC prediction results of the CNN-LSTM for FUDS under different temperature conditions, figureFileSmall=JR4uD+/dFjD+feXjETOZ8w==, figureFileBig=IfcFwKIJGRL685x9YFHrvA==, tableContent=null), ArticleFig(id=1190723882417009079, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=图9, caption=
FUDS的CNN-LSTM在不同温度条件下SOC预测结果, figureFileSmall=JR4uD+/dFjD+feXjETOZ8w==, figureFileBig=IfcFwKIJGRL685x9YFHrvA==, tableContent=null), ArticleFig(id=1190723882526060984, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Fig.10, caption=
SOC prediction results of the CNN-LSTM for US06 under different temperature conditions, figureFileSmall=GfLK0oPY7OYAW7ZS6OrA0w==, figureFileBig=UKAGM1Z/blB8Ueklflqn0A==, tableContent=null), ArticleFig(id=1190723882622529977, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=图10, caption=
US06的CNN-LSTM在不同温度条件下SOC预测结果, figureFileSmall=GfLK0oPY7OYAW7ZS6OrA0w==, figureFileBig=UKAGM1Z/blB8Ueklflqn0A==, tableContent=null), ArticleFig(id=1190723882760942010, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Fig.11, caption=
SOC prediction results of the CNN-LSTM-AM for FUDS under different temperature conditions, figureFileSmall=FYhuyM4JGJqGWSqGjVVTxQ==, figureFileBig=Zc7aUI3YCq+DLexUdkDLgA==, tableContent=null), ArticleFig(id=1190723882874188219, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=图11, caption=
FUDS的CNN-LSTM-AM在不同温度条件下SOC预测结果, figureFileSmall=FYhuyM4JGJqGWSqGjVVTxQ==, figureFileBig=Zc7aUI3YCq+DLexUdkDLgA==, tableContent=null), ArticleFig(id=1190723882987434428, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Fig.12, caption=
SOC prediction results of the CNN-LSTM-AM for US06 under different temperature conditions, figureFileSmall=A25Q8BFu5mIlKwzjztLstQ==, figureFileBig=cUKeLINzhJtaNKDMYNidIA==, tableContent=null), ArticleFig(id=1190723883226509757, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=图12, caption=
US06的CNN-LSTM-AM在不同温度条件下SOC预测结果, figureFileSmall=A25Q8BFu5mIlKwzjztLstQ==, figureFileBig=cUKeLINzhJtaNKDMYNidIA==, tableContent=null), ArticleFig(id=1190723883352338878, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Fig.13, caption=
SOC prediction results of the improved CNN-LSTM-AM for FUDS under different temperature conditions, figureFileSmall=KlyC6AL3OzA64yvnZXu2jg==, figureFileBig=m9JxwHSX7UB8BFsdf1IP4g==, tableContent=null), ArticleFig(id=1190723883671105983, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=图13, caption=
FUDS的改进CNN-LSTM-AM在不同温度条件下SOC预测结果, figureFileSmall=KlyC6AL3OzA64yvnZXu2jg==, figureFileBig=m9JxwHSX7UB8BFsdf1IP4g==, tableContent=null), ArticleFig(id=1190723883788546496, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Fig.14, caption=
SOC prediction results of the improved CNN-LSTM-AM for US06 under different temperature conditions, figureFileSmall=OmhJ+msbrT2j5UQJxWtA/w==, figureFileBig=W3eyKJCwN4dfVoqzhBdPBA==, tableContent=null), ArticleFig(id=1190723883889209793, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=图14, caption=
FUDS的改进CNN-LSTM-AM在不同温度条件下SOC预测结果, figureFileSmall=OmhJ+msbrT2j5UQJxWtA/w==, figureFileBig=W3eyKJCwN4dfVoqzhBdPBA==, tableContent=null), ArticleFig(id=1190723884002456002, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Fig.15, caption=
Model prediction results under different initial SOC conditions, figureFileSmall=su+FVOnVs8T3e2vl6yX6oA==, figureFileBig=1bmmECD2I0AW8kSrCHn4Ag==, tableContent=null), ArticleFig(id=1190723884128285123, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=图15, caption=
不同初始SOC条件下模型预测结果, figureFileSmall=su+FVOnVs8T3e2vl6yX6oA==, figureFileBig=1bmmECD2I0AW8kSrCHn4Ag==, tableContent=null), ArticleFig(id=1190723884358971844, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Fig.16, caption=
Model prediction errors under different initial SOC conditions, figureFileSmall=HX/VDrr71JT/u+n94SF2Og==, figureFileBig=VsKIfexHkhr1stB5ej3LrQ==, tableContent=null), ArticleFig(id=1190723884468023749, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=图16, caption=
不同初始SOC条件下模型预测误差, figureFileSmall=HX/VDrr71JT/u+n94SF2Og==, figureFileBig=VsKIfexHkhr1stB5ej3LrQ==, tableContent=null), ArticleFig(id=1190723884564492742, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Tab.1, caption=
Hyperparameter settings for CNN-LSTM-AM model
, figureFileSmall=null, figureFileBig=null, tableContent=
| 类型 | 超参数 | 数值/名称 |
| 数据结构 | 时间步长 | 30 |
| 滑动窗尺寸 | 30 |
| 数据采样间隔/s | 1 |
| 输入数据归一化的范围 | [-1,1] |
| 输出层的激活函数 | Sigmoid |
| 训练过程 | 初始网络参数 | Random |
| 优化器 | Adam |
| dropout | 0.1 |
| 初始学习率 | 0.01 |
| 小批量尺寸 | 64 |
| 训练轮次 | 50 |
| 损失函数 | RMSE |
), ArticleFig(id=1190723884816150983, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=表1, caption=
CNN-LSTM-AM模型的超参数设置
, figureFileSmall=null, figureFileBig=null, tableContent=
| 类型 | 超参数 | 数值/名称 |
| 数据结构 | 时间步长 | 30 |
| 滑动窗尺寸 | 30 |
| 数据采样间隔/s | 1 |
| 输入数据归一化的范围 | [-1,1] |
| 输出层的激活函数 | Sigmoid |
| 训练过程 | 初始网络参数 | Random |
| 优化器 | Adam |
| dropout | 0.1 |
| 初始学习率 | 0.01 |
| 小批量尺寸 | 64 |
| 训练轮次 | 50 |
| 损失函数 | RMSE |
), ArticleFig(id=1190723884962951624, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Tab.2, caption=
Results of optimizing hyperparameters using the RIME algorithm
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据集 | 温度/℃ | 优化参数 |
| 学习率 | 卷积核大小 | 隐藏神经元数 |
| FUDS | 0 | 0.008 90 | 3 | 57 |
| 25 | 0.009 17 | 3 | 56 |
| 50 | 0.008 61 | 3 | 56 |
| US06 | 0 | 0.007 77 | 3 | 57 |
| 25 | 0.01 | 3 | 56 |
| 50 | 0.008 05 | 3 | 56 |
), ArticleFig(id=1190723885072003529, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=表2, caption=
雾凇算法优化超参数的结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据集 | 温度/℃ | 优化参数 |
| 学习率 | 卷积核大小 | 隐藏神经元数 |
| FUDS | 0 | 0.008 90 | 3 | 57 |
| 25 | 0.009 17 | 3 | 56 |
| 50 | 0.008 61 | 3 | 56 |
| US06 | 0 | 0.007 77 | 3 | 57 |
| 25 | 0.01 | 3 | 56 |
| 50 | 0.008 05 | 3 | 56 |
), ArticleFig(id=1190723885248164298, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=EN, label=Tab.3, caption=
Comparison of battery SOC prediction performance based on different models
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据集 | 温度/℃ | CNN-LSTM | | CNN-LSTM-AM | | 改进CNN-LSTM-AM |
| RMSE(%) | MAE(%) | RMSE(%) | MAE(%) | RMSE(%) | MAE(%) |
| FUDS | 0 | 4.3 | 3.5 | 1.7 | 1.5 | 0.68 | 0.57 |
| 10 | 3.2 | 2.5 | 1.6 | 1.2 | 0.68 | 0.51 |
| 20 | 3.1 | 3.8 | 1.9 | 1.5 | 0.73 | 0.60 |
| 25 | 4.0 | 3.1 | 1.5 | 1.1 | 0.64 | 0.52 |
| 30 | 3.2 | 4.0 | 1.7 | 1.4 | 0.67 | 0.56 |
| 40 | 3.1 | 4.0 | 1.4 | 1.0 | 0.56 | 0.47 |
| 50 | 3.1 | 3.9 | 1.6 | 1.3 | 0.67 | 0.57 |
| US06 | 0 | 3.2 | 2.7 | 1.0 | 0.9 | 0.54 | 0.46 |
| 10 | 3.0 | 2.5 | 1.4 | 1.1 | 0.54 | 0.45 |
| 20 | 2.8 | 3.6 | 1.9 | 1.4 | 0.88 | 0.70 |
| 25 | 4.1 | 3.5 | 2.0 | 1.5 | 0.54 | 0.44 |
| 30 | 3.4 | 4.1 | 1.8 | 1.5 | 0.74 | 0.58 |
| 40 | 3.2 | 3.9 | 1.3 | 1.1 | 0.50 | 0.41 |
), ArticleFig(id=1190723885688566219, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190597295977677602, language=CN, label=表3, caption=
基于不同模型的电池SOC预测性能比较
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据集 | 温度/℃ | CNN-LSTM | | CNN-LSTM-AM | | 改进CNN-LSTM-AM |
| RMSE(%) | MAE(%) | RMSE(%) | MAE(%) | RMSE(%) | MAE(%) |
| FUDS | 0 | 4.3 | 3.5 | 1.7 | 1.5 | 0.68 | 0.57 |
| 10 | 3.2 | 2.5 | 1.6 | 1.2 | 0.68 | 0.51 |
| 20 | 3.1 | 3.8 | 1.9 | 1.5 | 0.73 | 0.60 |
| 25 | 4.0 | 3.1 | 1.5 | 1.1 | 0.64 | 0.52 |
| 30 | 3.2 | 4.0 | 1.7 | 1.4 | 0.67 | 0.56 |
| 40 | 3.1 | 4.0 | 1.4 | 1.0 | 0.56 | 0.47 |
| 50 | 3.1 | 3.9 | 1.6 | 1.3 | 0.67 | 0.57 |
| US06 | 0 | 3.2 | 2.7 | 1.0 | 0.9 | 0.54 | 0.46 |
| 10 | 3.0 | 2.5 | 1.4 | 1.1 | 0.54 | 0.45 |
| 20 | 2.8 | 3.6 | 1.9 | 1.4 | 0.88 | 0.70 |
| 25 | 4.1 | 3.5 | 2.0 | 1.5 | 0.54 | 0.44 |
| 30 | 3.4 | 4.1 | 1.8 | 1.5 | 0.74 | 0.58 |
| 40 | 3.2 | 3.9 | 1.3 | 1.1 | 0.50 | 0.41 |
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Comparison of SOC prediction performance under different initial states
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| 初始SOC(%) | CNN-LSTM | | CNN-LSTM-AM | | 改进CNN-LSTM-AM |
| RMSE(%) | MAE(%) | RMSE(%) | MAE(%) | RMSE(%) | MAE(%) |
| 100 | 3.98 | 2.95 | 1.45 | 1.12 | 0.64 | 0.52 |
| 80 | 2.76 | 2.23 | 1.15 | 1.01 | 0.58 | 0.50 |
| 60 | 2.91 | 2.39 | 0.96 | 0.79 | 0.50 | 0.43 |
| 40 | 3.16 | 2.62 | 0.88 | 0.72 | 0.53 | 0.44 |
| 20 | 3.15 | 2.63 | 0.91 | 0.79 | 0.59 | 0.49 |
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不同初始状态下SOC预测性能比较
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| 初始SOC(%) | CNN-LSTM | | CNN-LSTM-AM | | 改进CNN-LSTM-AM |
| RMSE(%) | MAE(%) | RMSE(%) | MAE(%) | RMSE(%) | MAE(%) |
| 100 | 3.98 | 2.95 | 1.45 | 1.12 | 0.64 | 0.52 |
| 80 | 2.76 | 2.23 | 1.15 | 1.01 | 0.58 | 0.50 |
| 60 | 2.91 | 2.39 | 0.96 | 0.79 | 0.50 | 0.43 |
| 40 | 3.16 | 2.62 | 0.88 | 0.72 | 0.53 | 0.44 |
| 20 | 3.15 | 2.63 | 0.91 | 0.79 | 0.59 | 0.49 |
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Comparison of SOC prediction performance under different temperature conditions
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| 温度/℃ | RMSE(%) |
AT-CNN- LSTM[26] | EI-LSTM- CO[18] | 改进CNN- LSTM-AM |
| 0 | — | 1.5 | 0.57 |
| 10 | 1.18 | 0.8 | 0.68 |
| 20 | — | 0.7 | 0.60 |
| 25 | 1.11 | 0.5 | 0.64 |
| 30 | — | 0.6 | 0.56 |
| 40 | 0.84 | 0.7 | 0.56 |
| 50 | — | 0.8 | 0.57 |
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不同温度条件下SOC预测性能比较
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| 温度/℃ | RMSE(%) |
AT-CNN- LSTM[26] | EI-LSTM- CO[18] | 改进CNN- LSTM-AM |
| 0 | — | 1.5 | 0.57 |
| 10 | 1.18 | 0.8 | 0.68 |
| 20 | — | 0.7 | 0.60 |
| 25 | 1.11 | 0.5 | 0.64 |
| 30 | — | 0.6 | 0.56 |
| 40 | 0.84 | 0.7 | 0.56 |
| 50 | — | 0.8 | 0.57 |
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