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Major technical issues with increased PV penetration on the existing electrical grid

Jadeja, Kalpendrasinh (2012) Major technical issues with increased PV penetration on the existing electrical grid. Masters by Coursework thesis, Murdoch University.

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In the past decade, the installation of rooftop PV (Photovoltaic) systems has substantially increased in many countries. This increase is anticipated due to government incentives like RECs (Renewable Energy Certificates) and feed-in tariff, to counterbalance the carbon emissions and satisfy local energy needs provided to the customers. The existing electrical grid infrastructure was originally designed to supply power from source to load but now due to such increase of distributed PV generation there is the possibility of reverse power flow which presents some technical challenges when the numbers of such systems increase for the utilities. Out of all the technical issues, to analyse the effects of voltage rise on LV (Low Voltage) distribution side of the grid due to such systems is the main objective of this project. This paper considers data that is collected from 7 different grid connected solar PV systems that are installed in different suburbs of Perth, Western Australia and one outside Perth in Bridgetown, Western Australia in order to show that voltage rise on the feeder is a common effect wherever these systems are installed. The Australian Standards for grid connected PV systems are studied and what effects are caused when a number of such systems are increased on the grid. A number of options are suggested in order to lessen or overcome this effect some of which suggest revising the existing old standards for connection. The conclusion derived will be what are the necessary steps need to be taken in order to integrate future penetration of such distributed generation.

Item Type: Thesis (Masters by Coursework)
Murdoch Affiliation: School of Engineering and Energy
Supervisor(s): Pryor, Trevor
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