直流微电网的发展趋势:从控制和保护角度看

IF 2.5 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
A. Bidram, Mathew J. Reno, Seyyed Ali Ghorashi Khalil Abadi, Miguel Jimenez Aparicio, Daniel Bauer
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引用次数: 0

摘要

微电网(MGs)正在推动我们建设更具弹性的电网。它们可以独立于上游电网运行,并为客户提供可靠的电力来源。传统上,交流微电网被用来提高电网的可靠性和弹性,或为无法与电网连接的偏远地区提供电力。但最近,直流电动发电机因其诸多优势而备受关注。这些优势包括:与交流系统相比,直流系统的效率和功率传输比更高,控制和操作更简单,因为在直流系统中,只有电压和功率是控制目标;交流系统的无功功率和频率不再是关注的重点。不过,直流 MG 仍面临一些控制挑战,尤其是从电压调节和功率共享的角度来看。此外,直流 MG 的保护也比交流 MG 更具挑战性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Trends in dc Microgrids: From the control and protection perspective
Microgrids (MGs) are driving us toward more resilient power grids. They can operate independently from the upstream power grids and provide a reliable source of power to their customers. Conventionally, ac MGs have been deployed to increase the reliability and resilience of power grids or provide power to remote areas where connection to an electric power grid is not possible. However, more recently, dc MGs have gained much attention due to a number of advantages. These advantages include a higher efficiency and power transfer ratio compared to their ac counterparts as well as simpler control and operation since, in dc systems, only voltage and power are the control objectives; the reactive power and frequency of ac systems are not of concern anymore. However, the dc MG still faces some control challenges, especially from the perspective of voltage regulation and power sharing. Moreover, the protection of dc MGs is more challenging than that of ac ones.
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来源期刊
IEEE Electrification Magazine
IEEE Electrification Magazine ENGINEERING, ELECTRICAL & ELECTRONIC-
CiteScore
5.80
自引率
0.00%
发文量
57
期刊介绍: IEEE Electrification Magazine is dedicated to disseminating information on all matters related to microgrids onboard electric vehicles, ships, trains, planes, and off-grid applications. Microgrids refer to an electric network in a car, a ship, a plane or an electric train, which has a limited number of sources and multiple loads. Off-grid applications include small scale electricity supply in areas away from high voltage power networks. Feature articles focus on advanced concepts, technologies, and practices associated with all aspects of electrification in the transportation and off-grid sectors from a technical perspective in synergy with nontechnical areas such as business, environmental, and social concerns.
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