摘要
分段长初级双边直线感应电动机(LP-DSLIM)系统由若干段单元电机串联或并联组成,为准确描述次级运动过程中单元电机的推力等状态变化和过分段时的暂态过程,该文提出了一种新型单元电机数学模型及分段LP-DSLIM系统模型。首先,对分段LP-DSLIM系统的特点进行分析,通过引入虚拟次级板将每段单元电机耦合的次级延长至与初级等长,以使单元电机初级、次级之间始终保持全耦合;然后,结合耦合因数得到实际次级磁链和初级磁链,以此推导得到新型单元电机数学模型,并基于此建立串联供电和并联供电的分段LP-DSLIM系统模型;最后,有限元计算和实验结果验证了提出的新型单元电机数学模型和分段LP-DSLIM系统模型的正确性。
The segmented long primary double-sided linear induction motor(LP-DSLIM)system is composed of several segments of unit motors powered in series or in parallel.To accurately describe the state change of unit motor and the transient process when passing through segments during secondary motion,a new mathematical model of unit motor and a segmented LP-DSLIM system model are proposed in this paper.Firstly,the characteristics of the segmented LP-DSLIM system are analyzed.By introducing the virtual secondary board,the secondary coupling of each unit motor is extended to the same length as the primary,so that the primary and secondary of the unit motor are always fully coupled.Then,the actual secondary flux linkage and primary flux linkage are obtained by combining with the coupling factor.The new unit motor mathematical model is derived,and the segmented LP-DSLIM system model is established.Finally,the proposed new unit motor mathematic model and segmented LPDSLIM system model are verified by FEM calculation and experiments.
作者
张明远
史黎明
郭科宇
杨泽宇
徐飞
Zhang Mingyuan;Shi Liming;Guo Keyu;Yang Zeyu;Xu Fei(Key Laboratory of Power Electronics and Electric Drive Institute of Electrical Engineering Chinese Academy of Sciences,Beijing 100190 China;University of Chinese Academy of Sciences,Beijing 100049 China)
出处
《电工技术学报》
EI
CSCD
北大核心
2021年第11期2344-2354,共11页
Transactions of China Electrotechnical Society
基金
国家重点研发计划资助项目(2016YFB1200602-19)。
关键词
长初级双边直线感应电动机
单元电机
数学模型
虚拟次级
耦合因数
Long primary double-sided linear induction motor
unit motor
mathematical model
virtual secondary board
coupling factor
