Article(id=1190413892233867284, tenantId=1146029695717560320, journalId=1190306094246359042, issueId=1190413885736894766, articleNumber=null, orderNo=null, doi=10.19595/j.cnki.1000-6753.tces.240819, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1716048000000, receivedDateStr=2024-05-19, revisedDate=1725811200000, revisedDateStr=2024-09-09, acceptedDate=null, acceptedDateStr=null, onlineDate=1761746388728, onlineDateStr=2025-10-29, pubDate=1750780800000, pubDateStr=2025-06-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1761746388728, onlineIssueDateStr=2025-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1761746388728, creator=13701087609, updateTime=1761746388728, updator=13701087609, issue=Issue{id=1190413885736894766, tenantId=1146029695717560320, journalId=1190306094246359042, year='2025', volume='40', issue='12', pageStart='3691', pageEnd='4016', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1761746387172, creator=13701087609, updateTime=1761785301742, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1190577105311253479, tenantId=1146029695717560320, journalId=1190306094246359042, issueId=1190413885736894766, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1190577105311253480, tenantId=1146029695717560320, journalId=1190306094246359042, issueId=1190413885736894766, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=3842, endPage=3856, ext={EN=ArticleExt(id=1190413892812681241, articleId=1190413892233867284, tenantId=1146029695717560320, journalId=1190306094246359042, language=EN, title=Research on Full-Order Observer Discretization Method of Multi-Phase Induction Motor at Low Switching Frequency, columnId=null, journalTitle=Transactions of China Electrotechnical Society, columnName=null, runingTitle=null, highlight=null, articleAbstract=
The multi-phase open-winding induction motor and its adaptive H-bridge multi-phase inverter system have received extensive attention due to their advantages of small torque ripple, strong fault tolerance, and easy power capacity expansion. This paper analyzes the modeling of the multi-phase open-winding motor system and speed sensorless control technology to achieve high degrees of freedom control and low switching frequency characteristics in a twelve-phase, large-capacity, open-winding motor system. The simulation and experimental verification are conducted to enhance the operating performance of the low-switching-frequency multi-phase open-winding motor system.
The twelve-phase open-winding induction motor system and its equivalent three-phase simplified model are established. The equivalent three-phase full-order observer model and its speed estimation method are presented. The full-order observer used in speed sensorless control has the advantages of low control bandwidth requirements and a wide range of observation speeds. However, the switching frequency of the H-bridge large-capacity inverter supporting the ship’s multi-phase open-winding induction motor is low, which inevitably increases the digital discretization error of the full-order observer. This paper derives the full-order flux observer models based on the forward Euler method, the simplified second-order discretization method, and the proposed Adams fourth-order discretization method. Then, the steady-state error and observer stability are compared using the F-norm and pole diagram. Theoretical analysis reveals that the full-order observer, based on Adams' fourth-order discretization method, achieves the best discrete accuracy and stability of the observation system while minimizing the computational complexity of the digital control system.
A simulation model and a test platform for a twelve-phase, 25 kW open-winding induction motor with speed sensorless control have been developed. The results show that, compared with the forward Euler method and the simplified second-order discretization method, the observation results for speed, current, and flux based on the Adams fourth-order discretization method are almost consistent with the actual values. Through the speed sensorless closed-loop speed regulation test and load mutation test, it is further verified that the full-order observer based on Adams' fourth-order discretization method exhibits good speed regulation and load-carrying capacity, which can achieve better dynamic and steady-state performance under both extremely low and high-speed conditions. The full-order observer discretization method can provide technical support for applying speed sensorless control technology to low switching frequency multi-phase open-winding motor systems.
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全阶观测器因具有控制带宽要求低且观测转速范围宽等优点成为低开关频率电机系统转速估计的优选方案,但与舰船多相开绕组感应电机配套的H桥型大容量变频器开关频率低,不可避免地增加了全阶观测器数字离散化误差。为解决该问题,该文首先结合舰船推进用十二相开绕组感应电机,建立并给出了等效三相全阶观测器模型及其转速估算方法;其次,提出了一种基于四阶Adams方法的全阶观测器离散算法,并利用F范数和极点图对比了全阶观测器不同离散方法的精度及稳定性;最后,搭建十二相/25 kW开绕组感应电机系统仿真模型及试验平台,对全阶观测器转速观测性能予以仿真和试验验证。相比其他离散方法,基于四阶Adams离散方法的全阶观测器电流及转速观测精度明显提高。该文研究结论可为基于全阶观测器的无速度传感器控制技术推广应用于低开关频率多相开绕组感应电机系统提供技术支撑。
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胡亮灯 男,1986年生,博士,副研究员,博士生导师,研究方向为大容量电力电子变换、高压辅助电源设计和数字有源门极驱动技术。E-mail: hldhgd@163.com
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胡亮灯 男,1986年生,博士,副研究员,博士生导师,研究方向为大容量电力电子变换、高压辅助电源设计和数字有源门极驱动技术。E-mail: hldhgd@163.com
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胡亮灯 男,1986年生,博士,副研究员,博士生导师,研究方向为大容量电力电子变换、高压辅助电源设计和数字有源门极驱动技术。E-mail: hldhgd@163.com
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1 电磁能技术全国重点实验室(海军工程大学) 武汉 430033)]), AuthorCompany(id=1190684241001333321, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, xref=2, ext=[AuthorCompanyExt(id=1190684241009721930, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, companyId=1190684241001333321, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 Wuhan Institute of Marine Electric Propulsion Wuhan 430064 China), AuthorCompanyExt(id=1190684241018110539, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, companyId=1190684241001333321, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 武汉船用电力推进装置研究所 武汉 430064)]), AuthorCompany(id=1190684241160716876, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, xref=3, ext=[AuthorCompanyExt(id=1190684241169105485, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, companyId=1190684241160716876, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 College of Electrical and Electronic Engineering Huazhong University of Science and Technology Wuhan 430074 China), AuthorCompanyExt(id=1190684241177494094, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, companyId=1190684241160716876, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 华中科技大学电气与电子工程学院 武汉 430074)])], figs=[ArticleFig(id=1190684245174665836, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.1, caption=
Block diagram of three-level twelve-phase open-winding induction propulsion system, figureFileSmall=VtOsgbXNkLsmkfFNfO4rig==, figureFileBig=WJIb/twau3Kva8i6OUXKSg==, tableContent=null), ArticleFig(id=1190684245279523437, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图1, caption=
三电平十二相开绕组感应推进系统框图, figureFileSmall=VtOsgbXNkLsmkfFNfO4rig==, figureFileBig=WJIb/twau3Kva8i6OUXKSg==, tableContent=null), ArticleFig(id=1190684245409546862, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.2, caption=
Schematic diagram of twelve-phase four-channel propulsion motor winding arrangement, figureFileSmall=7UnBBhpRqiCjzBF4WnyCcg==, figureFileBig=O+7fXfNaThr34z9lZjvhrg==, tableContent=null), ArticleFig(id=1190684245493432943, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图2, caption=
十二相/四通道推进电机绕组布置示意图, figureFileSmall=7UnBBhpRqiCjzBF4WnyCcg==, figureFileBig=O+7fXfNaThr34z9lZjvhrg==, tableContent=null), ArticleFig(id=1190684245594096240, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.3, caption=
Block diagram of the full-order adaptive observer, figureFileSmall=0RAwvDJ4eTiDKRm7CP9W6Q==, figureFileBig=B99D1l14tcPh3VmfVCGtbw==, tableContent=null), ArticleFig(id=1190684245682176625, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图3, caption=
全阶自适应观测器原理框图, figureFileSmall=0RAwvDJ4eTiDKRm7CP9W6Q==, figureFileBig=B99D1l14tcPh3VmfVCGtbw==, tableContent=null), ArticleFig(id=1190684245774451314, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.4, caption=
Comparison of the accuracy of three discretization methods at a step size of 0.5 ms, figureFileSmall=oYkP/4l+aRo9ZiGYbVu+sQ==, figureFileBig=W75LimfJQxzPVH5xEA5Eqg==, tableContent=null), ArticleFig(id=1190684245870920307, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图4, caption=
步长为0.5 ms时三种离散方法精度对比, figureFileSmall=oYkP/4l+aRo9ZiGYbVu+sQ==, figureFileBig=W75LimfJQxzPVH5xEA5Eqg==, tableContent=null), ArticleFig(id=1190684246189687412, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.5, caption=
Discrete error of three discretization methods with ωr at 2 kHz computational frequencies, figureFileSmall=rNA9jX+uttRZofIGY6vh5Q==, figureFileBig=VZsp5RLlKEZord3xroClPQ==, tableContent=null), ArticleFig(id=1190684246533620341, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图5, caption=
2 kHz频率下三种方法随电机转速ωr变化的离散误差, figureFileSmall=rNA9jX+uttRZofIGY6vh5Q==, figureFileBig=VZsp5RLlKEZord3xroClPQ==, tableContent=null), ArticleFig(id=1190684246860776054, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.6, caption=
Stabilization region for forward Euler and simplified second-order discretization methods, figureFileSmall=w9syYo6T//EW00UfH2yz4w==, figureFileBig=rA+xiZUfYKv+E8YwZls92w==, tableContent=null), ArticleFig(id=1190684247095657079, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图6, caption=
前向欧拉法和简化二阶离散方法的稳定区域, figureFileSmall=w9syYo6T//EW00UfH2yz4w==, figureFileBig=rA+xiZUfYKv+E8YwZls92w==, tableContent=null), ArticleFig(id=1190684247225680504, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.7, caption=
Stabilization region for Adams discretization method, figureFileSmall=BLRyDzRI+PdpJC/iH5RQyg==, figureFileBig=yfFCnsE+GSNlH6EIMXxyog==, tableContent=null), ArticleFig(id=1190684247322149497, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图7, caption=
Adams四阶离散方法的稳定区域, figureFileSmall=BLRyDzRI+PdpJC/iH5RQyg==, figureFileBig=yfFCnsE+GSNlH6EIMXxyog==, tableContent=null), ArticleFig(id=1190684247410229882, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.8, caption=
Pole distribution of full-order observer considering the stabilization region of the three discretization methods, figureFileSmall=FLcOZFJ+cEAwNhgdh51ALQ==, figureFileBig=LkAxAYu8jbrQIVa8XF27vQ==, tableContent=null), ArticleFig(id=1190684247603167867, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图8, caption=
考虑三种离散方法稳定区域的全阶观测器极点轨迹, figureFileSmall=FLcOZFJ+cEAwNhgdh51ALQ==, figureFileBig=LkAxAYu8jbrQIVa8XF27vQ==, tableContent=null), ArticleFig(id=1190684247712219772, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig9, caption=
Block diagram of speed sensorless control based full-order observer, figureFileSmall=aTWJmCEFsQaQctcESHHlXg==, figureFileBig=8StCJJOsoP2EyX1k4VAOlQ==, tableContent=null), ArticleFig(id=1190684247804494461, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图9, caption=
基于离散全阶观测器的无速度传感器闭环矢量控制原理实现框图, figureFileSmall=aTWJmCEFsQaQctcESHHlXg==, figureFileBig=8StCJJOsoP2EyX1k4VAOlQ==, tableContent=null), ArticleFig(id=1190684247896769150, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.10, caption=
Simulation results of full-order observer based on forward Euler discretization method, figureFileSmall=kcTyJYA8YGThX58ce+I+Sw==, figureFileBig=RSKY/+AdnFr3UHqvRsbHLw==, tableContent=null), ArticleFig(id=1190684248991482495, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图10, caption=
基于前向欧拉离散法的全阶观测器仿真结果, figureFileSmall=kcTyJYA8YGThX58ce+I+Sw==, figureFileBig=RSKY/+AdnFr3UHqvRsbHLw==, tableContent=null), ArticleFig(id=1190684249163448960, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.11, caption=
Simulation results of full-order observer based on simplified second-order discretization method, figureFileSmall=8HotvZaqDVL/N73bXGW59Q==, figureFileBig=W2i4FtZwavBCFTNG++MSGA==, tableContent=null), ArticleFig(id=1190684249264112257, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图11, caption=
基于简化二阶离散法的全阶观测器仿真结果, figureFileSmall=8HotvZaqDVL/N73bXGW59Q==, figureFileBig=W2i4FtZwavBCFTNG++MSGA==, tableContent=null), ArticleFig(id=1190684249352192642, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.12, caption=
Simulation results of full-order observer based on Adams four-order discretization method, figureFileSmall=RvYPwaNyHyIqUJDLnGeJCw==, figureFileBig=BXUlZh1Vt3o6Ko0sD2lJrg==, tableContent=null), ArticleFig(id=1190684249431884419, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图12, caption=
基于Adams四阶离散法的全阶观测器仿真结果, figureFileSmall=RvYPwaNyHyIqUJDLnGeJCw==, figureFileBig=BXUlZh1Vt3o6Ko0sD2lJrg==, tableContent=null), ArticleFig(id=1190684249570296452, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.13, caption=
Twelve-phase induction motor test platform, figureFileSmall=4ybl3LRIupqcDuCgUflRtg==, figureFileBig=EvqrGGOHLTljlYhiMHwISw==, tableContent=null), ArticleFig(id=1190684249733874309, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图13, caption=
十二相感应电机试验平台, figureFileSmall=4ybl3LRIupqcDuCgUflRtg==, figureFileBig=EvqrGGOHLTljlYhiMHwISw==, tableContent=null), ArticleFig(id=1190684249813566086, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.14, caption=
Twelve-phase/four sets of three-level H-bridge topology propulsion inverter control architecture, figureFileSmall=T5uFLqMVayyskra3XNBapA==, figureFileBig=Zo6RLcaBd5CSV2o0kZVVnw==, tableContent=null), ArticleFig(id=1190684249901646471, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图14, caption=
十二相/四套三电平H桥拓扑推进变频器控制构架, figureFileSmall=T5uFLqMVayyskra3XNBapA==, figureFileBig=Zo6RLcaBd5CSV2o0kZVVnw==, tableContent=null), ArticleFig(id=1190684250023281288, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.15, caption=
Test results of full-order observer based on forward Euler discretization method, figureFileSmall=Gtqlt8a9dzZChzAi+TcCJg==, figureFileBig=J2iaGw6UCp3Z2MmS+Tgx4Q==, tableContent=null), ArticleFig(id=1190684250170081929, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图15, caption=
基于前向欧拉离散法的全阶观测器试验结果, figureFileSmall=Gtqlt8a9dzZChzAi+TcCJg==, figureFileBig=J2iaGw6UCp3Z2MmS+Tgx4Q==, tableContent=null), ArticleFig(id=1190684250530792074, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.16, caption=
Test results of full-order observer based on simplified second-order discretization method, figureFileSmall=U4k8e3mI+uDMk8jZT+hZXg==, figureFileBig=vm1MK1wFI2Qwy7lWswWLPg==, tableContent=null), ArticleFig(id=1190684250807616139, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图16, caption=
基于简化二阶离散法的全阶观测器试验结果, figureFileSmall=U4k8e3mI+uDMk8jZT+hZXg==, figureFileBig=vm1MK1wFI2Qwy7lWswWLPg==, tableContent=null), ArticleFig(id=1190684251214463628, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.17, caption=
Test results of full-order observer based on Adams four-order discretization method, figureFileSmall=NysPEIcsNtoHEVDbKyrQPg==, figureFileBig=QmoGYLetelvzF/hmNH+jmw==, tableContent=null), ArticleFig(id=1190684251369652877, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图17, caption=
基于Adams四阶离散法的全阶观测器试验结果, figureFileSmall=NysPEIcsNtoHEVDbKyrQPg==, figureFileBig=QmoGYLetelvzF/hmNH+jmw==, tableContent=null), ArticleFig(id=1190684251495481998, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.18, caption=
Test results in different speed ranges, figureFileSmall=48t15saKsTS2BhqH1PcKmA==, figureFileBig=JNGbiZ96yBoN/vj2GA0ahw==, tableContent=null), ArticleFig(id=1190684251587756687, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图18, caption=
不同转速范围内调速试验结果, figureFileSmall=48t15saKsTS2BhqH1PcKmA==, figureFileBig=JNGbiZ96yBoN/vj2GA0ahw==, tableContent=null), ArticleFig(id=1190684251688419984, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.19, caption=
Current waveforms during speed dynamic changes, figureFileSmall=lV2iMf4+NH5NqvAn6t+g+w==, figureFileBig=hnlLpVvkIkNmx9Zn/JXKbg==, tableContent=null), ArticleFig(id=1190684251793277585, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图19, caption=
转速动态变化时电流波形, figureFileSmall=lV2iMf4+NH5NqvAn6t+g+w==, figureFileBig=hnlLpVvkIkNmx9Zn/JXKbg==, tableContent=null), ArticleFig(id=1190684251910718098, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.20, caption=
Speed waveforms during dynamic changes in torque, figureFileSmall=MA2UJb1qeg6xpw/mjr24vQ==, figureFileBig=cvPEbdIiLgcadTZlTcEtCw==, tableContent=null), ArticleFig(id=1190684252011381395, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图20, caption=
转矩动态变化时的转速波形, figureFileSmall=MA2UJb1qeg6xpw/mjr24vQ==, figureFileBig=cvPEbdIiLgcadTZlTcEtCw==, tableContent=null), ArticleFig(id=1190684252099461780, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Fig.21, caption=
Current and magnetic chain waveforms during dynamic change of torque during stable operation at 600 r/min, figureFileSmall=w4OVnVcr0r4LaxVMgMbOXQ==, figureFileBig=AVezttdzXw3KNAWZP3a8KA==, tableContent=null), ArticleFig(id=1190684252221096597, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=图21, caption=
600 r/min稳定运行时转矩动态变化时的电流、磁链波形, figureFileSmall=w4OVnVcr0r4LaxVMgMbOXQ==, figureFileBig=AVezttdzXw3KNAWZP3a8KA==, tableContent=null), ArticleFig(id=1190684252296594070, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Tab.1, caption=
Overall comparison of different discretization methods (次)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 离散化方法 | 前向 欧拉法 | 简化 二阶法 | 四阶 龙格-库塔法 | 四阶 Adams法 |
| 计算量 | 加减法 | 14 | 40 | 62 | 56 |
| 乘法 | 20 | 52 | 134 | 88 |
), ArticleFig(id=1190684252380480151, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=表1, caption=
不同离散化方法整体对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 离散化方法 | 前向 欧拉法 | 简化 二阶法 | 四阶 龙格-库塔法 | 四阶 Adams法 |
| 计算量 | 加减法 | 14 | 40 | 62 | 56 |
| 乘法 | 20 | 52 | 134 | 88 |
), ArticleFig(id=1190684253466804888, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Tab.2, caption=
Main parameters of twelve-phase induction motor
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参 数 | 数 值 |
| 母线电压U/V | 220 |
| 开关频率f/Hz | 1 000 |
| 相数m | 12 |
| 极对数np | 2 |
| 额定转速n/(r/min) | 600 |
| 转动惯量J/(kg∙m2) | 4 |
| 等效转子漏感llr1/H | 0.000 948 |
| 基磁电感lm1/H | 0.074 |
| 零序电感ls0/H | 0.015 1 |
| 定子电阻rs/Ω | 0.240 5 |
| 转子电阻rr/Ω | 0.166 7 |
| 等效定子漏感ll1/H | 0.006 5 |
), ArticleFig(id=1190684253575856793, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=表2, caption=
十二相感应电机主要参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参 数 | 数 值 |
| 母线电压U/V | 220 |
| 开关频率f/Hz | 1 000 |
| 相数m | 12 |
| 极对数np | 2 |
| 额定转速n/(r/min) | 600 |
| 转动惯量J/(kg∙m2) | 4 |
| 等效转子漏感llr1/H | 0.000 948 |
| 基磁电感lm1/H | 0.074 |
| 零序电感ls0/H | 0.015 1 |
| 定子电阻rs/Ω | 0.240 5 |
| 转子电阻rr/Ω | 0.166 7 |
| 等效定子漏感ll1/H | 0.006 5 |
), ArticleFig(id=1190684253672325786, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Tab.3, caption=
Comparison of three discretization methods
, figureFileSmall=null, figureFileBig=null, tableContent=
| 离散算法 | 前向欧拉离散法 | 简化二阶离散法 | 四阶Adams法 |
| 定子电流 | 幅值误差/A | 2.2 | 0.8 | 0.1 |
| 相位误差/(°) | 165.5 | 12.2 | 1.4 |
| 转子磁链 | 幅值误差/Wb | 0.03 | 0.02 | 0.002 |
| 相位误差/(°) | 13.7 | 7.8 | 0.5 |
| 转速误差 | 过程峰值/(r/min) | 16 | 15 | 6 |
| 稳态均值/(r/min) | 1.5 | 1 | 0.3 |
), ArticleFig(id=1190684253793960603, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=表3, caption=
三种离散方法仿真性能对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 离散算法 | 前向欧拉离散法 | 简化二阶离散法 | 四阶Adams法 |
| 定子电流 | 幅值误差/A | 2.2 | 0.8 | 0.1 |
| 相位误差/(°) | 165.5 | 12.2 | 1.4 |
| 转子磁链 | 幅值误差/Wb | 0.03 | 0.02 | 0.002 |
| 相位误差/(°) | 13.7 | 7.8 | 0.5 |
| 转速误差 | 过程峰值/(r/min) | 16 | 15 | 6 |
| 稳态均值/(r/min) | 1.5 | 1 | 0.3 |
), ArticleFig(id=1190684253898818204, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=EN, label=Tab.4, caption=
Comparison of three discretization methods
, figureFileSmall=null, figureFileBig=null, tableContent=
| 离散算法 | 前向欧拉离散法 | 简化二阶离散法 | 四阶Adams法 |
| 定子电流 | 幅值误差/A | 2.6 | 1.1 | 0.1 |
| 相位误差/(°) | 175.4 | 16.0 | 1.2 |
| 转子磁链 | 幅值误差/Wb | 0.05 | 0.02 | 0.008 |
| 相位误差/(°) | 15.5 | 9.5 | 1.5 |
| 转速误差 | 过程峰值/(r/min) | 18 | 14 | 3 |
| 稳态均值/(r/min) | 4 | 2 | 0.3 |
), ArticleFig(id=1190684254083367581, tenantId=1146029695717560320, journalId=1190306094246359042, articleId=1190413892233867284, language=CN, label=表4, caption=
三种离散方法试验性能对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 离散算法 | 前向欧拉离散法 | 简化二阶离散法 | 四阶Adams法 |
| 定子电流 | 幅值误差/A | 2.6 | 1.1 | 0.1 |
| 相位误差/(°) | 175.4 | 16.0 | 1.2 |
| 转子磁链 | 幅值误差/Wb | 0.05 | 0.02 | 0.008 |
| 相位误差/(°) | 15.5 | 9.5 | 1.5 |
| 转速误差 | 过程峰值/(r/min) | 18 | 14 | 3 |
| 稳态均值/(r/min) | 4 | 2 | 0.3 |
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