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Surge arrester operation investigation in low- and high-current regions using MATLAB GUI: Implementing an educational goal for undergraduate students
Computer Applications in Engineering Education ( IF 2.9 ) Pub Date : 2021-01-13 , DOI: 10.1002/cae.22384
Seyyedmeysam Seyyedbarzegar 1 , Masume Khodsuz 2
Affiliation  

Metal oxide surge arresters (MOSAs) have been widely used as protective devices against switching and lightning overvoltages in power electrical systems. MOSAs have dynamic characteristics in low- and high-current regions. The unique model of MOSA, which is able to evaluate all the possible operating conditions of power systems, would surely be so complicated. Therefore, by the selection of an operating condition, the appropriate model of MOSA has been created. Many parameters affect MOSA performance in low- and high-current regions. As a result, MOSA's performance under different operating conditions has been investigated by using a MATLAB GUI environment. To make a software environment to simulate MOSA performance in a high voltage laboratory, temperature variations influence on leakage current and its harmonic components under power frequency applied voltages and also the efficacy of impulse parameters variations on MOSA's residual voltage have been investigated. The designed graphical environment has been used by 40 electrical engineering students. The results showed that the use of the graphical environment had a great impact on the concepts' understanding of MOSA's performance.

中文翻译:

使用MATLAB GUI在低电流和高电流区域进行避雷器运行调查:实现本科生的教育目标

金属氧化物避雷器 (MOSA) 已广泛用作电力系统中防止开关和雷击过电压的保护装置。MOSA 在低电流和高电流区域具有动态特性。MOSA这个独特的模型,能够评估电力系统所有可能的运行条件,肯定会如此复杂。因此,通过选择操作条件,创建了适当的 MOSA 模型。许多参数会影响低电流和高电流区域的 MOSA 性能。因此,通过使用 MATLAB GUI 环境研究了 MOSA 在不同操作条件下的性能。制作一个在高压实验室模拟MOSA性能的软件环境,已经研究了温度变化对工频施加电压下漏电流及其谐波分量的影响,以及脉冲参数变化对MOSA剩余电压的影响。设计的图形环境已被 40 名电气工程专业的学生使用。结果表明,图形环境的使用对概念对MOSA性能的理解有很大影响。
更新日期:2021-01-13
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