Point Estimate for Optimizing Single-Phase PV Placement to Mitigate Voltage Unbalance
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Abstract
Voltage unbalance in distribution networks is a critical issue that can result in equipment malfunctions, reduced efficiency, and increased operational costs. This research explores the use of single-phase photovoltaic (PV) systems to mitigate voltage unbalance, with particular attention to the impact of demand variations. The study utilizes the Point Estimate (PE) method to model demand variation, comparing its performance to that of Monte Carlo Simulation (MCS). The findings reveal that while both methods effectively identify optimal PV system locations, MCS offers a more comprehensive analysis by accounting for a broader range of demand scenarios, leading to recommendations for larger PV system sizes. However, PE proves to be a more computationally efficient alternative. Two case studies, involving the IEEE 34-bus and IEEE 123-bus distribution networks, demonstrate that the proposed method can significantly reduce voltage unbalance, with the optimal solutions involving PV installations at key buses identified through heuristic optimization techniques.
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