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Avoiding overvoltage problems in three-phase distributed-generation systems during unbalanced voltage sags

Author
Castilla, M.; Camacho, A.; Miret, J.; Guzman, R.; Garcia de Vicuña, J.
Type of activity
Journal article
Journal
IET power electronics
Date of publication
2020-02-01
DOI
10.1049/iet-pel.2019.1178
Project funding
Control and management of microgrids with electric vehicles and backup batteries
EFITAC
Repository
http://hdl.handle.net/2117/183243 Open in new window
https://www.researchgate.net/publication/339305840_Avoiding_overvoltage_problems_in_three-phase_distributed-generation_systems_during_unbalanced_voltage_sags Open in new window
URL
https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2019.1178;jsessionid=9vt68wue8ugm.x-iet-live-01 Open in new window
Abstract
During voltage sags, distributed generation systems must fulfil specific grid-code requirements for reactive current injection. This ancillary service can produce overvoltage problems in networks operating in unbalanced conditions when the amplitude of one of the phase voltages is higher than the others and a balanced reactive current is injected through large grid impedance. This study proposes a control scheme to avoid these overvoltage problems, thus reducing the risk of cascade disconnection...
Citation
Castilla, M. [et al.]. Avoiding overvoltage problems in three-phase distributed-generation systems during unbalanced voltage sags. "IET power electronics", 1 Febrer 2020.
Keywords
Three-phase inverter, current limiters, distributed power generation, voldtage sags
Group of research
PERC-UPC - Power Electronics Research Centre
SEPIC - Power and Control Electronics Systems

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