电动释放制动器的静磁分析及功率优化

2014 Annual International Conference on Emerging Research Areas: Magnetics, Machines and Drives (AICERA/iCMMD) Pub Date : 2014-07-24 DOI:10.1109/AICERA.2014.6908234

M. Kumbhar, R. Bindu, Abhilash Walavalkar

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引用次数: 2

摘要

本文介绍了一种电动释放制动器，主要用于自动化或过程工业中需要紧急停止的安全目的。有意或意外断电时，刹车处于啮合状态。对于给定的制动器，线圈被设计为获得所需的磁力。由于电枢板与本体之间的摩擦，二者之间的气隙增大。进行了静磁分析，观察了可变气隙的影响，并获得了1mm间隙内足够的磁力。在正常工作状态下，制动器处于脱离状态，但制动线圈通电。采用PWM方法实现了制动线圈的最佳利用率，降低了制动线圈的功耗。此外，制动接合时间减少了使用简单电路与齐纳二极管。

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Magnetostatic analysis and power optimization of electric release brake

This paper presents electric release brake which is mainly used for safety purpose where emergency stop is required in automation or process industry. Brake is in engage condition when power cut occurs intentionally or accidently. For the given brake, coil is designed to get the required magnetic force. Due to friction between armature plate and body, the air gap between them increases. Magnetostatic analysis is carried out to see the effect of variable air gap and to get sufficient magnetic force upto 1 mm gap. During normal working condition brake is in disengage condition but brake coil is energized. Optimum utilization of brake coil is obtained using PWM method and power consumption is reduced. Also brake engagement time is reduced using simple circuit with zener diode.

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来源期刊

2014 Annual International Conference on Emerging Research Areas: Magnetics, Machines and Drives (AICERA/iCMMD)

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