Article(id=1202250943137013948, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1202250938762354779, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20220129, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1764568561585, onlineDateStr=2025-12-01, pubDate=1676822400000, pubDateStr=2023-02-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764568561585, onlineIssueDateStr=2025-12-01, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764568561585, creator=13701087609, updateTime=1764568561585, updator=13701087609, issue=Issue{id=1202250938762354779, tenantId=1146029695717560320, journalId=1189873562199433220, year='2023', volume='', issue='2', pageStart='1', pageEnd='71', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1764568560543, creator=13701087609, updateTime=1764576113832, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1202282619619729669, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1202250938762354779, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1202282619619729670, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1202250938762354779, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=63, endPage=71, ext={EN=ArticleExt(id=1202250943443198151, articleId=1202250943137013948, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=Research on Key Technologies of Ultra High Efficiency Electric Drive System for Electric Vehicle, columnId=null, journalTitle=Automobile Technology & Material, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In order to improve the efficiency of the electric drive system for electric vehicles, this article summarized the solutions to improve the efficiency of the electric drive system in motor design, material selection, process assembly and other aspects. In the motor design, motor suitable for the electric vehicle was selected, and the control algorithm was optimized; in terms of materials, copper wires, silicon steel materials and high-frequency materials with high performance were selected; in process assembly, the application of flat wire winding process can improve the torque and efficiency of the motor, the core and stacking process were optimized to reduce the motor iron loss. The efficiency of motor drive system for electric vehicles can be improved by increasing the system output efficiency and reducing various losses.
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为提升电动汽车用电机驱动系统效率,在电机设计、材料选择、工艺装配方面总结出提升电驱系统效率的解决措施。在电机设计方面选择适合电动汽车的电机,优化控制算法;在材料方面,选择性能较高的铜线、硅钢材料和高频材料;在工艺装配方面,应用扁线绕组工艺可以提升电机的转矩和效率,优化铁芯与叠装工艺,从而降低电机铁损。通过增大系统输出效率,降低各项损耗,可以提升电动汽车用电机驱动系统效率。
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暴杰(1985—),男,高级工程师,硕士学位,研究方向为电驱系统设计。
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SiC基器件相比Si基器件开关损耗大幅降低, figureFileSmall=2Gjyya0noxDlggCSVRp5dQ==, figureFileBig=xrelXwC+GS4jOIybRqnjXQ==, tableContent=null), ArticleFig(id=1202312919246663683, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250943137013948, language=EN, label=null, caption=null, figureFileSmall=Ju36mjCHZwg+sjtunAynKA==, figureFileBig=q/pCH/eBDMTl5vmRqqVQ9Q==, tableContent=null), ArticleFig(id=1202312919313772548, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250943137013948, language=CN, label=图13, caption=
全域变载波频率控制示意图, figureFileSmall=Ju36mjCHZwg+sjtunAynKA==, figureFileBig=q/pCH/eBDMTl5vmRqqVQ9Q==, tableContent=null), ArticleFig(id=1202312919376687109, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250943137013948, language=EN, label=null, caption=null, figureFileSmall=PS6btfljrLovEYmTtPZXaA==, figureFileBig=o9SbfkPi8ub3hSMbJqmNxg==, tableContent=null), ArticleFig(id=1202312919443795974, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250943137013948, language=CN, label=图14, caption=
整车工况点分布与电机高效区定向匹配, figureFileSmall=PS6btfljrLovEYmTtPZXaA==, figureFileBig=o9SbfkPi8ub3hSMbJqmNxg==, tableContent=null), ArticleFig(id=1202312919498321927, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250943137013948, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 汽车驱动电机类型 | 永磁同步电机PMSM | 感应电机IM | 电励磁电机ESM | 开关磁阻电机SRM |
| 尺寸/功率密度 | ++ | + | + | o |
| 效率 | ++ | + | + | + |
| 转动惯量 | + | o | o | o |
| 鲁棒性 | o | ++ | - | ++ |
| 温度范围 | o | + | o | + |
| 电机成本 | o | + | + | ++ |
| 高转矩应用 | ++ | -- | -- | + |
| 高转速应用 | ++ | ++ | + | ++ |
| 固有安全性 | -- | ++ | + | + |
| 逆变器成本 | + | o | - | -- |
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主流汽车驱动电机性能对比
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| 汽车驱动电机类型 | 永磁同步电机PMSM | 感应电机IM | 电励磁电机ESM | 开关磁阻电机SRM |
| 尺寸/功率密度 | ++ | + | + | o |
| 效率 | ++ | + | + | + |
| 转动惯量 | + | o | o | o |
| 鲁棒性 | o | ++ | - | ++ |
| 温度范围 | o | + | o | + |
| 电机成本 | o | + | + | ++ |
| 高转矩应用 | ++ | -- | -- | + |
| 高转速应用 | ++ | ++ | + | ++ |
| 固有安全性 | -- | ++ | + | + |
| 逆变器成本 | + | o | - | -- |
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| 编号 | 材料 | 抗拉强度/MPa | 电导率(IACS)/% |
| 1 | 单晶铜 | 200 | 105~108 |
| 2 | 无氧铜 | 200 | 103~104 |
| 3 | 银 | 180 | 106~108 |
| 4 | 超级铜 | 207~211 | 116~118 |
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中车超级铜线性能对比[18]
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| 编号 | 材料 | 抗拉强度/MPa | 电导率(IACS)/% |
| 1 | 单晶铜 | 200 | 105~108 |
| 2 | 无氧铜 | 200 | 103~104 |
| 3 | 银 | 180 | 106~108 |
| 4 | 超级铜 | 207~211 | 116~118 |
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| 材料 | 板厚 /mm | 比电阻 /μΩ·m | DC最大相对磁导率 | 饱和磁化/T | 磁通密度B8/T | 磁通密度B25/T | 磁致伸缩λ10/400/ ×10-6 | 铁损/W·kg-1 |
| W10/50 | W10/400 | W10/1 k | W5/2 k | W2/5 k | W1/10 k | W0.5/20 k |
| JNEX铁芯 | 0.100 | 0.82 | 23 000 | 1.80 | 1.29 | 1.40 | 0.1 | 0.5 | 5.7 | 18.7 | 13.7 | 11.3 | 8.3 | 6.9 |
| 晶粒取向硅钢 | 0.050 0.100 0.230 0.350 | 0.48 | - 24 000 92 000 94 000 | 2.03 | 1.75 1.84 1.92 1.92 | - 1.91 1.96 1.96 | -0.8 | 0.8 0.7 0.3 0.4 | 6.4 6.0 7.8 12.2 | 17.2 22.7 35.0 55.0 | 13.5 22.0 33.0 49.5 | 9.2 20.0 33.0 49.5 | 7.1 18.0 30.0 47.0 | 5.2 14.0 32.0 49.0 |
| 无取向硅钢 | 0.100 0.200 0.350 | 0.57 | 12 500 15 000 18 000 | 2.05 2.03 1.96 | 1.58 1.44 1.45 | - 1.53 1.56 | 7.8 | 0.8 0.7 0.7 | 8.5 11.0 14.4 | 27.1 38.5 62.0 | 22.4 33.2 50.2 | 16.5 26.2 38.0 | 13.3 23.0 33.0 | - - - |
| 铁基非晶合金 | 0.025 | 1.30 | 300 000 | 1.50 | 1.38 | - | 27.0 | 0.1 | 1.5 | 5.5 | 8.1 | 4.0 | 3.6 | 3.3 |
| 铁氧体 | Bulk | - | 3 500 | - | 0.37 | - | 21.0 | - | - | - | - | 2.2 | 2.0 | 1.8 |
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不同材料磁钢性能对比表[24]
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| 材料 | 板厚 /mm | 比电阻 /μΩ·m | DC最大相对磁导率 | 饱和磁化/T | 磁通密度B8/T | 磁通密度B25/T | 磁致伸缩λ10/400/ ×10-6 | 铁损/W·kg-1 |
| W10/50 | W10/400 | W10/1 k | W5/2 k | W2/5 k | W1/10 k | W0.5/20 k |
| JNEX铁芯 | 0.100 | 0.82 | 23 000 | 1.80 | 1.29 | 1.40 | 0.1 | 0.5 | 5.7 | 18.7 | 13.7 | 11.3 | 8.3 | 6.9 |
| 晶粒取向硅钢 | 0.050 0.100 0.230 0.350 | 0.48 | - 24 000 92 000 94 000 | 2.03 | 1.75 1.84 1.92 1.92 | - 1.91 1.96 1.96 | -0.8 | 0.8 0.7 0.3 0.4 | 6.4 6.0 7.8 12.2 | 17.2 22.7 35.0 55.0 | 13.5 22.0 33.0 49.5 | 9.2 20.0 33.0 49.5 | 7.1 18.0 30.0 47.0 | 5.2 14.0 32.0 49.0 |
| 无取向硅钢 | 0.100 0.200 0.350 | 0.57 | 12 500 15 000 18 000 | 2.05 2.03 1.96 | 1.58 1.44 1.45 | - 1.53 1.56 | 7.8 | 0.8 0.7 0.7 | 8.5 11.0 14.4 | 27.1 38.5 62.0 | 22.4 33.2 50.2 | 16.5 26.2 38.0 | 13.3 23.0 33.0 | - - - |
| 铁基非晶合金 | 0.025 | 1.30 | 300 000 | 1.50 | 1.38 | - | 27.0 | 0.1 | 1.5 | 5.5 | 8.1 | 4.0 | 3.6 | 3.3 |
| 铁氧体 | Bulk | - | 3 500 | - | 0.37 | - | 21.0 | - | - | - | - | 2.2 | 2.0 | 1.8 |
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| 加工方案 | 磁性能(磁感)及铁损 | 尺寸精度 | 加工效率 | 成本 | 片间连接强度 |
| 叠片连接工艺 | 氩弧焊 | 差 | 差 | 良 | 良 | 良 |
| 激光焊 | 中 | 良 | 良 | 中 | 良 |
| 叠铆 | 中 | 良 | 优 | 良 | 中 |
| 自黏接 | 良 | 良 | 中 | 差 | 中 |
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铁芯叠装工艺对比
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| 加工方案 | 磁性能(磁感)及铁损 | 尺寸精度 | 加工效率 | 成本 | 片间连接强度 |
| 叠片连接工艺 | 氩弧焊 | 差 | 差 | 良 | 良 | 良 |
| 激光焊 | 中 | 良 | 良 | 中 | 良 |
| 叠铆 | 中 | 良 | 优 | 良 | 中 |
| 自黏接 | 良 | 良 | 中 | 差 | 中 |
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| 调制类型 | 同步调制 | 异步调制 |
| 初始磁动势与调制器相对状态 | 静止 | 运动 |
| 气隙磁场分布 | 规则 | 不规则 |
| 利用有效空间谐波数量 | 一种或无穷 | 有限,至少两种 |
| 励磁源和电枢配合 | 多为完全配合(极对数相同) | 多为近极或远极配合(极对数不相等) |
| 磁场利用率 | 高 | 一般偏低 |
| 功率因数 | 高 | 一般偏低 |
| 转矩密度 | 高 | 一般偏低 |
| 磁阻的作用 | 产生磁阻转矩 | 产生空间谐波 |
| 物理dq轴与功能dq轴的一致性 | 一致 | 不一致 |
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同步调制与异步调制技术对比[26]
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| 调制类型 | 同步调制 | 异步调制 |
| 初始磁动势与调制器相对状态 | 静止 | 运动 |
| 气隙磁场分布 | 规则 | 不规则 |
| 利用有效空间谐波数量 | 一种或无穷 | 有限,至少两种 |
| 励磁源和电枢配合 | 多为完全配合(极对数相同) | 多为近极或远极配合(极对数不相等) |
| 磁场利用率 | 高 | 一般偏低 |
| 功率因数 | 高 | 一般偏低 |
| 转矩密度 | 高 | 一般偏低 |
| 磁阻的作用 | 产生磁阻转矩 | 产生空间谐波 |
| 物理dq轴与功能dq轴的一致性 | 一致 | 不一致 |
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