ABSTRACT:
This study deals with a three-phase multifunctional grid-connected
inverter interfaced with a wind energy conversion system (WECS) is described.
The studied system consists of a permanent magnet synchronous generator (PMSG)
based wind turbine, a rectifier and a three-phase voltage source inverter connected
to the utility at the point of common coupling. To ensure the multifunctional
feature, we propose a direct power control (DPC) which is applied to eliminate
line current harmonics, compensate reactive power and feeding wind power into
the utility. Simulation results are provided to demonstrate the effectiveness
of the proposed system. The results show that the control algorithm of system
is effective for eliminating harmonic currents, reactive power compensation and
inject the active power available from the PMSG wind turbine into the load and/or
grid, which allowed us to confirm the robustness of the proposed strategy.
KEYWORDS:
1.
Inverter
2.
Wind energy conversion system
3.
Permanent magnet synchronous generator
4.
Rectifier
5.
DPC
SOFTWARE:
MATLAB/SIMULINK
CONCLUSION:
This paper focused on applying direct power
control to a three-phase multifunctional grid-connected inverter interfaced with
a wind energy conversion system. The proposed control scheme is used in order
to achieve harmonics elimination, reactive power compensation, and
simultaneously inject the active power available from the PMSG wind turbine
into the load and/or grid. The analysis of the simulation results obtained has
attested the robustness, the effectiveness and the good performance of proposed
system. The DPC method has very good performance in injection of active power
produced by PMSG wind turbine to the distribution networks and simultaneously
compensating harmonics and reactive power.
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[3] A.Krama, L.Zellouma and B. Rabhi
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[4] M.R. Bengourina, M. Rahli, S.
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