Analysis of Dynamic Characteristics of Permanent Magnet Contactor With Sensorless Displacement Profile Control

Analysis of Dynamic Characteristics of Permanent Magnet Contactor With Sensorless Displacement Profile Control
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无传感器位移轮廓控制永磁接触器动态特性分析

DOI:
10.1109/tmag.2010.2044753
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发表时间:
2010-05
影响因子:
2.1
通讯作者:
Jin Ping
Jin Ping
中科院分区:
工程技术4区
文献类型:
--
作者:
Wang Xianbing;Lin Heyun;Ho S. L.;Fang Shuhua;Jin Ping

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提出了一种基于脉宽调制(PWM)的新型位移轮廓控制策略,以改善永磁接触器在制造过程中的动态特性,降低接触弹跳。采用磁路模型(MCM)和电路模型(ECM)实现了无传感器位移信号实时检测方法。采用有限元法得到了磁链、位移和离线电流之间的非线性关系。然后将这些信息用于接触器动态特性的后续快速模拟。建立了一套周期互传动态特性方程,并采用四阶龙格-库塔法对永磁接触器的完整制造动态过程进行了仿真。在样机上进行了实验,验证了所提出的控制方法。
A new displacement profile control strategy based on pulse-width-modulation (PWM) for improving the dynamic characteristics and reducing the contact bounce of permanent magnet (PM) contactor during the making process is reported. Sensorless method of real time displacement signal detection is realized using magnetic circuit model (MCM) and electric circuit model (ECM). Finite element method (FEM) is used to obtain the nonlinear relationships among the flux linkage, displacement and current off-line. The information is then used for subsequent fast simulation of the dynamic characteristics of the contactor. A set of periodically inter-transferred dynamic characteristic equations are built and the complete making dynamic process of the PM contactor is simulated using 4th-order Runge-Kutta method. Experiments are carried out to validate the proposed control method on a prototype.
DOI: --
发表时间: 2007
期刊: --
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