在小尺寸直流固态断路器中改善MOV-MOV-C方法的浪涌电压和功率损耗

IF 4.3 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
Phanit Sok;Sung-Geun Song;Guangxu Zhou;Feel-Soon Kang
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引用次数: 0

摘要

直流固态断路器(SSCB)通常用于保护敏感设备,通过快速切断故障电流来提高系统的稳定性,从而提高整体安全性。双金属氧化物压敏电阻(MOVs)和单电容是以MOV-MOV- c为代表的缓冲电路拓扑结构,通过设计和实验成功地证明了它们可以有效地抑制MOV电容引起的高频振荡,并阻断RC缓冲器引入的低频谐波。然而,先前的研究强调了需要改进的关键领域,特别是在降低主断路器开关的浪涌电压,最大限度地减少正常运行时的功率损失,以及讨论小规模应用中的总体设计成本。本文分析和比较了不同类型半导体开关的功耗,以优化和最小化功耗。浪涌电压也从传统的MOV-MOV- c改进为一种新的MOV,具有更低的直流额定电压和最大箝位电压,旨在优化浪涌电压保护,由Triple-MOV-C缓冲电路代表。还建立了一个关键部件的成本模型,讨论了基于两种缓冲电路的低规模直流SSCB应用的总体设计,并通过图进行了验证。最后,通过小规模实验验证了功率损耗和浪涌电压的改善。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Improving Surge Voltage and Power Loss of the MOV-MOV-C Approach for Low-Scale DC Solid-State Circuit Breaker Applications
The dc solid-state circuit breaker (SSCB) is commonly used to protect sensitive equipment and enhance system stability by quickly interrupting fault currents, thereby increasing overall safety. The double metal oxide varistors (MOVs) and the single capacitors are the snubber circuit topologies represented by MOV-MOV-C that have been successfully demonstrated through design and experimentation, effectively suppressing high-frequency oscillations caused by the capacitance of the MOV and blocking low-frequency harmonics introduced by the RC snubber. However, previous research highlights critical areas for improvement, particularly in reducing surge voltage across the main breaker switch, minimizing power loss in on-state normal operation, and discussing the overall design cost in low-scale applications. This article analyzes and compares power loss between different types of semiconductor switches to optimize and minimize it. The surge voltage also improves from the traditional MOV-MOV-C into a proposed enhancement incorporating a new MOV featuring a lower dc-rated and maximum clamping voltage aimed at optimizing surge voltage protection, represented by a Triple-MOV-C snubber circuit. A cost model for critical components was also developed to discuss the total design based on a low-scale dc SSCB application of both snubber circuits and validated through the graph. Finally, the validation of power loss and surge voltage improvements was conducted through small-scale experiments.
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来源期刊
IEEE Open Journal of the Industrial Electronics Society
IEEE Open Journal of the Industrial Electronics Society ENGINEERING, ELECTRICAL & ELECTRONIC-
CiteScore
10.80
自引率
2.40%
发文量
33
审稿时长
12 weeks
期刊介绍: The IEEE Open Journal of the Industrial Electronics Society is dedicated to advancing information-intensive, knowledge-based automation, and digitalization, aiming to enhance various industrial and infrastructural ecosystems including energy, mobility, health, and home/building infrastructure. Encompassing a range of techniques leveraging data and information acquisition, analysis, manipulation, and distribution, the journal strives to achieve greater flexibility, efficiency, effectiveness, reliability, and security within digitalized and networked environments. Our scope provides a platform for discourse and dissemination of the latest developments in numerous research and innovation areas. These include electrical components and systems, smart grids, industrial cyber-physical systems, motion control, robotics and mechatronics, sensors and actuators, factory and building communication and automation, industrial digitalization, flexible and reconfigurable manufacturing, assistant systems, industrial applications of artificial intelligence and data science, as well as the implementation of machine learning, artificial neural networks, and fuzzy logic. Additionally, we explore human factors in digitalized and networked ecosystems. Join us in exploring and shaping the future of industrial electronics and digitalization.
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