AUTHOR=Okedu Kenneth E. 

TITLE=Improving the Performance of PMSG Wind Turbines During Grid Fault Considering Different Strategies of Fault Current Limiters

JOURNAL=Frontiers in Energy Research

VOLUME=Volume 10 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2022.909044

DOI=10.3389/fenrg.2022.909044

ISSN=2296-598X

ABSTRACT=The wind energy conversion technology of Permanent Magnet Synchronous Generator (PMSG) is very promising in renewable power generation. However, the performance of the grid connected PMSGs are greatly affected by grid disturbances because their stator windings are interfaced to the grid directly. There are different Fault Current Limiter (FCL) topologies that are capable of improving the Fault Ride Through (FRT) capability of PMSG wind turbines during short circuit faults.  This paper investigates three types of FCLs connected to the grid side of PMSG wind turbine; Series Dynamic Braking Resistor (SDBR), traditional Bridge Fault Current Limiter (BFCL) and proposed Capacitive Bridge Fault Current Limiter (CBFCL). A complete modeling of the FCLs was derived in order to understand their behaviors accurately during normal condition and fault periods. The performance of the three FCLs in the PMSG wind turbine was analysed and compared using a severe three-phase to ground fault at the terminal of the PMSG with turbine in Power System Computer Design and Electromagnetic Transient Including DC (PSCAD/EMTDC) platform. The same conditions of operation were used in investigating the various FCLs strategies in the PMSG wind turbine considered in this study during grid fault, for effective comparison.