Decentralized voltage support in a Low Voltage feeder by droop based voltage controlled PVs
Shahnia, Farhad & Ghosh, Arindam (2013) Decentralized voltage support in a Low Voltage feeder by droop based voltage controlled PVs. In Proceedings of the 2013 Australasian Universities Power Engineering Conference (AUPEC), IEEE, Hobart, Tasmania, Australia, pp. 1-6.
Voltage drop at network peak hours is a significant power quality problem in Low Voltage (LV) distribution feeders. Recently, voltage rise due to high penetration of Photovoltaic cells (PVs) has been creating a new power quality problem during noon periods. In this paper, a voltage control strategy is proposed for the household installed PVs to regulate the voltage along the LV feeder. For this purpose, each PV is controlled to exchange reactive power with the grid. A droop control method is utilized to coordinate the reactive power exchange of each PV. The proposed method is a decentralized local voltage support since it is based on only local measurements and does not require any communication with other PVs. The required converter and filter structure and control algorithms are proposed to ensure the dynamic performance of the system. The study focuses on 3-phase PVs. The network is studied at network peak and off-peak periods, separately. The efficacy of the proposed voltage support concept is verified through numerical and dynamic analyses with MATLAB and PSCAD/EMTDC.
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|Item Type:||Conference Paper|
|Keywords:||Distribution feeder, Phtovoltaic, Voltage control, Droop control|
|Divisions:||Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2013 IEEE|
|Deposited On:||18 Mar 2014 01:29|
|Last Modified:||19 Mar 2014 02:35|
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