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Energies 2016, 9(6), 436; doi:10.3390/en9060436

Quantification and Mitigation of Unfairness in Active Power Curtailment of Rooftop Photovoltaic Systems Using Sensitivity Based Coordinated Control

1
Energy Department, Austrian Institute of Technology, Vienna 1210, Austria
2
Institute of Energy Systems and Electrical Drives, Vienna University of Technology, Vienna 1040, Austria
3
Department of Electrical Sustainable Energy, Delft University of Technology, Delft 2628 CD, The Netherlands
*
Author to whom correspondence should be addressed.
Academic Editor: João P. S. Catalão
Received: 7 April 2016 / Revised: 28 May 2016 / Accepted: 31 May 2016 / Published: 4 June 2016
(This article belongs to the Special Issue Distributed Renewable Generation)
View Full-Text   |   Download PDF [5020 KB, uploaded 4 June 2016]   |  

Abstract

With increasing photovoltaic (PV) penetration in low voltage networks (LVNs), voltage regulation is a challenge. Active power curtailment (APC) is one possible solution for mitigating over voltages resulting from active power injection in LVNs. There is an inherent unfairness in the APC scheme. When generation is high and consumption is low, the voltages at the end of the feeder tend to be the highest. This results in high curtailment of active power output of the inverters located at the end of the feeder and low or even no curtailment for the inverts located closer to the transformer. A secondary voltage controller has been implemented to mitigate this unfairness in APC based voltage support schemes. The focus of this work is to quantify this unfairness and develop methods that enable residential PV owners serviced by the same feeder to participate equally in voltage regulation in the LVN. View Full-Text
Keywords: over-voltage; active power curtailment (APC); coordinated control; sensitivity based control over-voltage; active power curtailment (APC); coordinated control; sensitivity based control
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Latif, A.; Gawlik, W.; Palensky, P. Quantification and Mitigation of Unfairness in Active Power Curtailment of Rooftop Photovoltaic Systems Using Sensitivity Based Coordinated Control. Energies 2016, 9, 436.

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