Research on braking characteristics of long primary double-sided linear induction motor

被引：0

作者：

Zhang, Zhihua ^{[1
]}

Shi, Liming ^{[1
]}

Cai, Hua ^{[1
]}

Li, Yaohua ^{[1
]}

机构：

[1] Key Laboratory of Power Electronics and Electric Drive (Institute of Electrical Engineering, Chinese Academy of Sciences), Haidian District, Beijing

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2015年 / 35卷 / 11期

关键词：

3D finite element model (FEM); Analysis model; Braking characteristics; Long primary double-sided linear induction motor (DSLIM); Longitudinal dynamic end effect;

D O I：

10.13334/j.0258-8013.pcsee.2015.11.025

中图分类号：

学科分类号：

摘要：

The braking performance of long primary double-sided linear induction motor (DSLIM) is influenced by longitudinal dynamic end effect, which results from the difference of secondary covered and rest air-gap filed. Analysis model of long primary DSLIM was established, formulas for flux density of air-gap and braking force were deduced by considering transverse and longitudinal dynamic end effects. The relations that braking force with slip, G-factor, secondary speed and conductivity, etc were analyzed. Comparative analysis shows that the longitudinal dynamic end effect is waken when slip approximates zero under regenerative braking and is aggravated when force reaches maximum under DC dynamic braking. Increasing secondary covered poles and braking in low slip of motor can restrain longitudinal dynamic end effect. Lastly, 3D finite element model (FEM) of prototype was built to obtain the flux density distribution and DC dynamic braking force. Simulation and experiment results verify the feasibility and effectiveness of the calculation method. ©2015 Chin. Soc. for Elec. Eng.

引用

页码：2854 / 2861

页数：7

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