Abstract
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The application of variable speed wind generators in
hybrid remote area power supply (RAPS) systems provides opportunities
for improved voltage and frequency control together
with maximum power point tracking (MPPT), where limited research
outcomes exist. The study presented in this paper covers
two such hybrid systems: 1) permanent magnet synchronous generator
(PMSG) and 2) doubly fed induction generator (DFIG) as
wind turbine technologies together with a battery storage and a
dump load. The battery storage system and dump load are able to
assist in maintaining the active power balance during over and under
generation conditions as well as sudden load changes. Through
simulation studies, it has been demonstrated that both RAPS systems
are able to regulate the load side voltage and frequency within
the acceptable limits while extracting the maximum power from
wind, which is an inherent capability of variable speed generators.
The two RAPS systems and their associated control strategies
have been developed and their performance is investigated using
SimPowerSystems blocksets in MATLAB.