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Impact of active power curtailment on overvoltage prevention and energy production of PV inverters connected to low voltage residential feeders

Title:

Impact of active power curtailment on overvoltage prevention and energy production of PV inverters connected to low voltage residential feeders

Tonkoski, Reinaldo and Lopes, Luiz A.C. (2011) Impact of active power curtailment on overvoltage prevention and energy production of PV inverters connected to low voltage residential feeders. Renewable Energy, 36 (12). pp. 3566-3574. ISSN 09601481

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Official URL: http://dx.doi.org/10.1016/j.renene.2011.05.031

Abstract

As non-controllable power sources, photovoltaics (PV) can create overvoltage in low voltage (LV) distribution feeders during periods of high generation and low load. This is usually prevented passively by limiting the penetration level of PV to very conservative values, even if the critical periods rarely occur. Alternatively, one can use active power curtailment (APC) techniques, reducing the amount of active power injected by the PV inverters, as the voltage at their buses increase above a certain value. In this way, it is possible to increase the installed PV capacity and energy yield while preventing overvoltage. This paper investigates a number of approaches for sizing and controlling the PV power generated by 12 net-zero energy houses equipped with large rooftop PV systems in a typical 240 V/75 kVA Canadian suburban radial distribution feeder. Simulations of a one year period with typical solar irradiance and load profiles are conducted with PSCAD to assess the performance of the different approaches in terms of overvoltage occurrence, sharing of the burden for overvoltage prevention per house and total energy yield of the residential PV feeder.

Divisions:Concordia University > Faculty of Engineering and Computer Science > Electrical and Computer Engineering
Item Type:Article
Refereed:Yes
Authors:Tonkoski, Reinaldo and Lopes, Luiz A.C.
Journal or Publication:Renewable Energy
Date:2011
ID Code:974440
Deposited By:ANDREA MURRAY
Deposited On:03 Jul 2012 14:13
Last Modified:03 Jul 2012 14:13
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