NDLI: PR control based cascaded current and voltage control for seamless transfer of microgrid

Content Provider	IEEE Xplore Digital Library
Author	Kyungbae Lim Jaeho Choi
Copyright Year	2015
Description	Author affiliation: Sch. of Electr. Eng., Chungbuk Nat. Univ., Cheongju, South Korea (Kyungbae Lim; Jaeho Choi)
Abstract	This paper describes the cascaded current and voltage control for seamless transfer of microgrid with harmonic compensation according to load location. DG based microgrid is defined as a current source in the grid-connected mode and a voltage source in the islanded mode, respectively. Hence, it needs a robust control to supply the high quality power under both modes of DG based microgrid. But a connection of non-linear load and/or distorted grid can cause the system power quality degradation due to the produced non-linear current and/or voltage. Therefore, the PR control based cascaded current and voltage control which can be used under both modes simultaneously has been considered with a deliberate control topology in this paper. According to the load location, it can meet both non-linear compensation and seamless transfer between two modes. Also, a simple voltage restoration method has been added to solve the magnitude degradation of output voltage due to the practical PR control limitation and sometimes grid frequency change. Finally, proposed control methods which supply the power to the non-linear load under both grid-connected mode and islanded mode are verified through the PSIM simulation.
Starting Page	1
Ending Page	6
File Size	661790
Page Count	6
File Format	PDF
ISBN	9781479976553
e-ISBN	9781479976577
DOI	10.1109/IFEEC.2015.7361574
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-11-01
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Current control Harmonic compensation PR control Microgrids Harmonic analysis Inverters Seamless transfer Voltage control Power harmonic filters Load modeling
Content Type	Text
Resource Type	Article

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