NDLI: Detection and switching control scheme of unintentional islanding for ‘hand-in-hand’ DC distribution network

Content Provider	IET Digital Library
Author	Song, Weiwei Chen, Yanfeng Wen, An Zhang, Yongjun Wei, Chengzhi
Abstract	With the large-scale access to distributed generation and energy storage (ES), the rapid growth of DC loads, and the development of power electronics technology, the DC distribution network is becoming a new type of high-reliability power supply. Detection and switching control of islanding is important to ensure the stability and robustness of the DC distribution network. In this study, first, for a ‘hand-in-hand’ DC distribution network, an unintentional islanding detection method, which is a combination of the main criterion based on switch status and an auxiliary criterion based on no-current and difference-voltage criteria, is proposed. Second, an unintentional islanding control strategy based on the coordination of the switching strategy of ES controller and DC solid-state transformer is proposed. Finally, the proposed detection and switching control scheme is validated through simulations using the real-time digital simulator platform. Simulation results indicate that the proposed scheme for the DC distribution network can accurately identify an island, and effectively switch control mode to achieve stable islanding control.
Starting Page	1414
Ending Page	1422
Page Count	9
ISSN	17518687
Volume Number	13
e-ISSN	17518695
Issue Number	Issue 8, Apr (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/13/8
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2018.5942
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-01-30
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Control of Electric Power System DC Loads DC Solid-state Transformer Distributed Generation Distributed Power Generation Distribution Network Energy Storage ES Controller Hand-in-hand DC Distribution Network High-reliability Power Supply Power Distribution Fault Power Electronics Power Generation Control Stable Islanding Control Switching Control Scheme Switching Strategy Unintentional Islanding Control Strategy Unintentional Islanding Detection Method
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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