Power loss reduction and voltage profile improvement via distributed PV site and size selection in smart grids: The case of North Cyprus

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2019-8
Abujubbeh, Mohammad
The increased awareness of communities on climate change, the inefficiencies associated with power-system infrastructure, and the exponential growth in energy demand motivated donors, non-governmental organizations, consumers, firms, and investors to cooperate with governments to establish an efficient and reliable framework that meets all requirements while ensuring user security, known as the Smart Grid (SG). One of the most pivotal enabler-technologies for the transition toward SGs is Distributed Generation (DG) in which power generation is localized through small-scale energy systems that either complement or replace centralized power plants. In the context of SGs, the successful adaptation of DG systems – especially renewable DG systems – helps to eradicate system inefficiencies and all its concomitant challenges such as power quality and reliability, energy security, as well as the detrimental impacts of aging system-infrastructure. However, integrating DG systems into current power systems requires optimal planning in order to extract the maximum benefits of their integration. Therefore, this present thesis aims at proposing a novel method for site and size selection of solar Photovoltaic DG units considering system technical performance. The novelty of this thesis relies on employing Weak Busbar (WBB) and Weighted Integration (WI) approaches for the site and size selection criteria, respectively. Initially, the solar resource potential is assessed considering the solar irradiation in the desired test case, and then the technical performance of the grid, with the presence of PV DG units, is assessed using the proposed approaches. In addition to the potential of minimizing harmful emissions, the technical performance is investigated through system total active power loss, busbar voltage-profile, and system overloading. The work includes a detailed case analysis performed on the Northern Cypriot power system with promising results that validate the proposed method. It is found that using the WI approach helps to reduce active power loss in the network by 36% at 50% penetration level of PV DG units whereas the potential of active power loss reduction is 32% using the NI approach. Similarly, using the WI approach provides better performance relative to the NI approach in terms of busbar voltage-profile improvement in which at 50% penetration level, all voltage magnitudes (in p.u.) are within the rated values.

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Citation Formats
M. Abujubbeh, “Power loss reduction and voltage profile improvement via distributed PV site and size selection in smart grids: The case of North Cyprus,” M.S. - Master of Science, Middle East Technical University, 2019.