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Power quality in islanded microgrids
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Sähkötekniikan korkeakoulu |
Master's thesis
Electronic archive copy is available via Aalto Thesis Database.
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Mcode
ELEC3048
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Language
en
Pages
12+107
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Abstract
The interest in Microgrids (MGs) has been recently increasing due to their capability to incorporate increasing shares of Distributed Generators (DGs) into the power system. In addition, their islanding capability and the fact that all generators in a MG can be controlled are the main reasons for the popularity of microgrids. However, high shares of energy generation from Renewable Energy Sources (RESs) and the increasing utilization of power electronics can lead to Electric Power Quality (EPQ) issues in islanded MGs. The severity of these issues is linked to the penetration levels of renewable energy generators such as Photovoltaic (PV) systems. This study investigates the effect of PV systems on the voltage flicker severity in islanded MGs considering different converter control strategies. Results indicate potential long-term flicker issues even under constant load considerations.