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Photovoltaic (PV) power is an environmentally friendly source of energy, which is quite convenient for integration into distribution systems in form of rooftop PV units. However, a high penetration level of PV units is needed to supply required energy for a considerable part of system loads. The impact of this high PV power penetration on the system stability needs to be assessed. Considering the...
Photovoltaic (PV) power is a favorable source of clean energy, which can be easily integrated into distribution systems, next to loads. However, to meet a considerable load portion of the system a high penetration level of PV is required. This high penetration level along with unbalanced connection of single phase rooftop PV units makes it necessary to assess the effect of PV on the voltage of unbalanced...
This paper presents analytical expressions to examine the effect of power injection from rooftop PV units on the static voltage stability of distribution system with theoretical and practical limits. Using an equivalent two-bus system, change in the loadability of the system as a direct measure of static voltage stability by PV power is obtained analytically for various limits. The analytical results...
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