NDLI: Power flow control and protection in micro-grid

Content Provider	IEEE Xplore Digital Library
Author	Bharathi Kannan, K. Sreeram Kumar, R.
Copyright Year	2013
Description	Author affiliation: Noorul Islam University, Kanyakumari, Tamil Nadu, India (Bharathi Kannan, K) \|\| King Abdulaziz University, Jeddah, Saudi Arabia (Sreeram Kumar, R)
Abstract	In this paper, a micro-grid consists of clusters of load and distributed generators that operate as a single controllable system is explored by means of computer simulations. The interconnection of distributed generator to the utility through power electronics converters has raised concern about safe operation and protection of the equipment. In this work, a method for power flow control between utility and micro-grid through back-to-back converters, which facilitates desired real power flow between utility and micro grid is presented. Controlled power flow between the micro-grid and the utility can be used in case of any contractual arrangement. In the case of a fault in either utility or micro-grid side, the protection system should act not only to clear the fault but also to block the back-to-back converters so that its dc bus voltage does not fall during fault. The converter's internal mechanism prevents it from supplying high current during a fault and this makes the operation of a protection system complicated. To overcome this, an admittance based relay scheme is proposed. The investigation reveals that the proposed protection and control schemes are able to ensure reliable operation of a micro-grid. The model of the power system is simulated in PSCAD.
Sponsorship	IEEE India Council ED Chapter
Starting Page	424
Ending Page	429
File Size	1202705
Page Count	6
File Format	PDF
ISBN	9781467349215
e-ISBN	9781467349222
DOI	10.1109/ICCPCT.2013.6528950
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-03-20
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power measurement Phase measurement Computational modeling Mho Relay Microgrids Micro-grid Educational institutions EMTDC Protection Load modeling Back-to-Back converter Power flow control
Content Type	Text
Resource Type	Article

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