研究接触器电磁动力学的试验装置的发展:初步研究

IF 1.3 4区工程技术 Q4 CHEMISTRY, ANALYTICAL

Instrumentation Science & Technology Pub Date : 2023-10-03 DOI:10.1080/10739149.2023.2259976

Van Tu Duong, Quoc Minh Lam, Ngoc Anh Duy Hoang, Minh Tri Nguyen, Cong Toai Truong, Huy Hung Nguyen, Tan Tien Nguyen

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引用次数: 0

摘要

电磁接触器具有结构简单、使用方便、成本低等优点，在现代机电设备中应用广泛。然而，这些设备也有固有的缺点，包括散热、接触侵蚀和长期运行时的低功耗。这激发了人们对接触式软着陆的兴趣，其目的是减少接触反弹、接触焊接和电弧等问题。本文介绍了一种用于研究接触器或机械继电器电磁动力学的测试装置，旨在开发一种基于开环模型的接触软着陆控制器。在物理定理的基础上，导出了描述电磁线圈在不同因素下的行为的理论方程。此外，利用所提出的测试装置进行了初步研究，以探索散热，流动电流，气隙和将铁磁性材料暴露在电磁线圈周围的磁场中产生的洛伦兹力之间的关系。实验和仿真结果显示拟合效果良好，各种场景的归一化均方根误差在2.5% ~ 4.5%之间。值得注意的是，通过改变驱动MOSFET电导率的脉宽调制信号的占空比，可以控制流经电磁线圈的电流。然而，结果表明，大于5 kHz的调制频率不适合驱动电磁线圈。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Development of testing apparatus for investigating electromagnetic dynamics of contactors: A pilot study

It is easy to find electromagnetic contactors in modern electromechanical devices owing to their advantages, which encompass a simple structure, ease of use, and low cost. However, these devices also have inherent drawbacks, including heat dissipation, contact erosion, and inefficient power consumption during long-term operation. This has sparked interest in contact soft-landing, which aims to reduce issues like contact bounces, contact welding, and arcing. This paper presents the development of a testing apparatus for investigating the electromagnetic dynamics of contactors or mechanical relays, aimed at developing an open-loop model-based controller for contact soft-landing. Theoretical equations based on physical theorems are derived to describe the behavior of the electromagnetic coil under varying factors. Additionally, a pilot study was conducted using the proposed testing apparatus to explore the relationship between heat dissipation, flowing current, air gap, and the Lorentz force produced by exposing ferromagnetic material to the magnetic field surrounding the electromagnetic coil. The experimental and simulation results showed good fitting, with a normalized root mean squared error ranging from 2.5% to 4.5% for various scenarios. Notably, it was found that the flowing current passing through the electromagnetic coil can be controlled by changing the duty cycle of the pulse width modulation signal driving the conductivity of the MOSFET. However, the results suggest that a modulation frequency greater than 5 kHz is not suitable for driving the electromagnetic coil.

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来源期刊

Instrumentation Science & Technology 工程技术-分析化学

CiteScore

3.50

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Instrumentation Science & Technology is an internationally acclaimed forum for fast publication of critical, peer reviewed manuscripts dealing with innovative instrument design and applications in chemistry, physics biotechnology and environmental science. Particular attention is given to state-of-the-art developments and their rapid communication to the scientific community. Emphasis is on modern instrumental concepts, though not exclusively, including detectors, sensors, data acquisition and processing, instrument control, chromatography, electrochemistry, spectroscopy of all types, electrophoresis, radiometry, relaxation methods, thermal analysis, physical property measurements, surface physics, membrane technology, microcomputer design, chip-based processes, and more. Readership includes everyone who uses instrumental techniques to conduct their research and development. They are chemists (organic, inorganic, physical, analytical, nuclear, quality control) biochemists, biotechnologists, engineers, and physicists in all of the instrumental disciplines mentioned above, in both the laboratory and chemical production environments. The journal is an important resource of instrument design and applications data.