NDLI: Two-degree-of-freedom current regulation of grid-connected inverters in microgrid

Content Provider	IEEE Xplore Digital Library
Author	Gu Herong Wang Deyu Guo Xiaoqiang San Guocheng Zhao Wei Zhang Ying Wu Weiyang
Copyright Year	2010
Description	Author affiliation: Key Lab of Power Electronics for Energy Conservation and Motor Drive of Hebei Province, Department of Electrical Engineering, Yanshan University, Qinhuangdao, 066004, China (Gu Herong; Wang Deyu; Guo Xiaoqiang; San Guocheng; Zhao Wei; Zhang Ying; Wu Weiyang)
Abstract	Microgrid is an effective way to integrate the distributed energy resources into the utility networks. Conventionally, the voltage-source inverters in microgrid with sinusoidal current regulation are used in grid-connected mode. In this paper, a two-degree-of-freedom nonsinusoidal current regulation (NCR) is proposed for both the distributed power generation and power quality enhancement. The equivalent Thevenin-Norton circuit is provided to clarify the concept that NCR with virtual admittance leads to the power quality improvement. It is demonstrated that without any harmonic current sensor or additional compensating device, the harmonics of the voltages at the point of common coupling and currents in microgrid can be mitigated significantly. Time-domain performance evaluation results confirm the concept.
Starting Page	512
Ending Page	515
File Size	376979
Page Count	4
File Format	PDF
ISBN	9781424456697
e-ISBN	9781424456703
DOI	10.1109/PEDG.2010.5545873
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Current control Microgrid Grid-connected inverters Harmonic analysis Inverters Virtual admittance Two-degree-of-freedom control Distributed power generation Admittance Power harmonic filters
Content Type	Text
Resource Type	Article

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