Abstract
With the increase in load demand, the renewable
energy sources (RES) are increasingly connected in the
distribution systems which utilize power electronic converters.
The use of non-linear loads in the power system will lead to
the generation of current and voltage harmonics and which in
turn deteriorates the power quality (PQ) of the power system
as a whole. This paper presents a control strategy for
maximizing the utilization of Three Bridge Four Wire (TBFW)
inverters when installed in 3-phase distribution generation
(DG) systems. The inverter is controlled in such a manner
that it can perform as a conventional inverter as well as an
active power filter (APF). The inverter can thus be utilized as
a power converter injecting power generated from RES to the
grid and as a shunt APF to compensate the power quality
disturbances and the load reactive power demand. This paper
will discuss the simulation results of TBFW inverter with
shunt APF functionality under non-linear load conditions
using MATLAB/Simulink program.
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