Degree Name

Master of Philosophy


School of Electrical, Computer and Telecommunications Engineering


The Solar Photovoltaic (PV) generation is one of the fastest growing types of renewable energy sources integrated into distribution systems worldwide and in Australia. Penetration levels of Solar PV systems are increasingly growing with the progressing development in the solar cell technology and the energy storage technology.

The installation of Solar PV at the proper location with its appropriate size is beneficial to the network operator. However, the installation of rooftop solar PV units by residential consumers completely changes the way distribution systems were designed and operated, and therefore it has various impacts on the distribution networks that need to be mitigated. The impact of the rooftop solar PV unit on the voltage profile in the connected distribution feeder is discussed in this thesis. Slow fluctuations (SF) in the voltage profile are caused by the variation of sun irradiation versus load demand. Fast fluctuations (FF) in the voltage profile are caused by the sudden cloud passing.

The rooftop solar PV systems gain the capability to supply electricity during grid outages and to provide ancillary services to the grid, such as voltage control, demand-side management and improvement of the power quality through the integration of energy storages (ES). Consequently, ES increases the capacity of the utility network to host more rooftop solar PV systems.

In this thesis, a low voltage distribution feeder consisting of residential households integrated with rooftop solar PV has been modelled and validated using practical network data...



Unless otherwise indicated, the views expressed in this thesis are those of the author and do not necessarily represent the views of the University of Wollongong.