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Excess power circulation in distribution networks containing distributed energy resources

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Authors
Mazumder, S.
Ghosh, A.
Shahnia, Farhad
Ledwich, G.
Zare, F.
Date
2012
Type
Conference Paper

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Mazumder, Sumit and Ghosh, Arindam and Shahnia, Farhad and Zare, Firuz and Ledwich, G. 2012. Excess power circulation in distribution networks containing distributed energy resources, in IEEE Power and Energy Society General Meeting 2012, Jul 22-26 2012, pp. 1-8. San Diego: IEEE Power and Energy Society.
Source Title
Proceeding of IEEE Power and Energy Society General Meeting 2012
Source Conference
IEEE Power and Energy Society General Meeting 2012
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Copyright © 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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Abstract

The presence of large number of single-phase distributed energy resources (DERs) can cause severe power quality problems in distribution networks. The DERs can be installed in random locations. This may cause the generation in a particular phase exceeds the load demand in that phase. Therefore the excess power in that phase will be fed back to the transmission network. To avoid this problem, the paper proposes the use of distribution static compensator (DSTATCOM) that needs to be connected at the first bus following a substation. When operated properly, the DSTATCOM can facilitate a set of balanced current flow from the substation, even when excess power is generated by DERs. The proposals are validated through extensive digital computer simulation studies using PSCAD and MATLAB.