Investigation of voltage sensitivities to photovoltaic power fluctuations in unbalanced distribution networks

Yan, Ruifeng and Saha, Tapan Kumar (2012). Investigation of voltage sensitivities to photovoltaic power fluctuations in unbalanced distribution networks. In: 2012 IEEE Power and Energy Society General Meeting. 2012 IEEE Power and Energy Society General Meeting, San Diego, United States, (1-7). 22-26 July 2012. doi:10.1109/PESGM.2012.6344696

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Author Yan, Ruifeng
Saha, Tapan Kumar
Title of paper Investigation of voltage sensitivities to photovoltaic power fluctuations in unbalanced distribution networks
Conference name 2012 IEEE Power and Energy Society General Meeting
Conference location San Diego, United States
Conference dates 22-26 July 2012
Proceedings title 2012 IEEE Power and Energy Society General Meeting
Journal name IEEE Power and Energy Society General Meeting
Place of Publication Piscataway, NJ United States
Publisher IEEE
Publication Year 2012
Sub-type Fully published paper
DOI 10.1109/PESGM.2012.6344696
ISBN 9781467327275
9781467327282
ISSN 1944-9925
Start page 1
End page 7
Total pages 7
Collection year 2013
Language eng
Abstract/Summary More and more photovoltaic (PV) power is being connected to electricity grid every year. Most PV units are installed at a low-voltage distribution level. According to the current standards for small scale PV integration, PV systems are basically the devices of real power generation and do not generally regulate voltages at the point of common coupling. Moreover, PV generation highly depends on weather conditions, so its power varies all the time throughout a day. Therefore, with increase in PV penetration distribution networks may experience significant PV power fluctuations within a short period of time caused by fast moving clouds. This can result in considerable voltage variations that may lead to undesirable under/over voltages and unacceptable voltage imbalance levels. This paper investigates phase voltage variation sensitivities to PV power fluctuations in an unbalanced distribution network. Asymmetrical line mutual couplings are considered. Mathematical explanations of unbalanced phase voltage variations are reported in this paper.
Keyword Distribution networks
Photovoltaic (PV)
Power fluctuation
unbalanced voltage variation
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Fri, 31 Aug 2012, 15:34:34 EST by Dr Ruifeng Yan on behalf of School of Information Technol and Elec Engineering