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Energies 2016, 9(11), 929; doi:10.3390/en9110929

New Requirements of the Voltage/VAR Function for Smart Inverter in Distributed Generation Control

Korea Electrotechnology Research Institute, Changwon 51543, Korea
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Author to whom correspondence should be addressed.
Academic Editor: Ying-Yi Hong
Received: 19 July 2016 / Revised: 19 October 2016 / Accepted: 4 November 2016 / Published: 9 November 2016
(This article belongs to the Special Issue Electric Power Systems Research 2017)
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Abstract

International Electronical Committee (IEC) 61850-90-7 is a part of the IEC 61850 series which specifies the advanced functions and object models for power converter based Distributed Energy Resources (DERs). One of its functions, the Voltage/VAR (V/V) control function, is used to enhance the stability and the reliability of the voltage in the distribution system. The conventional V/V function acts mainly for flattening the voltage profile as for a basic grid support function. Currently, other objectives such as the minimization of line loss and the operational costs reduction are coming into the spotlight. In order to attain these objectives, the V/V function and hence the DER units shall actively respond to the change of distribution system conditions. In this paper, the modification of V/V function and new requirements are proposed. To derive new requirements of V/V function, loss minimization is applied to a particle swarm optimization (PSO) algorithm where the condition of voltage constraint is considered not to deteriorate the voltage stability of the distribution system. View Full-Text
Keywords: International Electronical Committee 61850; inverter-interfaced distributed generation; smart inverter; Volt/VAR function International Electronical Committee 61850; inverter-interfaced distributed generation; smart inverter; Volt/VAR function
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Kim, Y.-S.; Kim, G.-H.; Lee, J.-D.; Cho, C. New Requirements of the Voltage/VAR Function for Smart Inverter in Distributed Generation Control. Energies 2016, 9, 929.

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