A NOVEL INTERMEDIATE LINE REGULATOR SUITABLE FOR USE AS A CURRENT SOURCE CONVERTER

Document Type : Original Article

Authors

Elecfrical Engineering Deparfmenf, Faculty ofEngineer~ng, Tanta University, Tanta, Egpt

Abstract

In this paper, a novel intermediate lime regulator suitable for use as a current source converter is
proposed. The operation principle of this converter is mainIy based on switched series inductor and
i switched shunt capacitor. Thus, two semiconductor devices only are used for single-phase systems
I
i and six semiconductor devices for three-phase systems. This reduces switching losses and
increases the effciency compared to !hat of previous topologies. The control strategy is built via
i
! pulse width modulation technique accompanied by the control method used. In this study, two
I different control methods, conventional PI and fuzzy logic, are tested and compared to select the
i , preferable one. The simulation results of the proposed converter are presented based on
i MATLABISIMULINK tools. Also, the results of the three-phase arrangement are shown with the
simulated waveforms. In order to validate the converter operation, a laboratory prototype based on
TMS320C31 digital signal processor has been designed and constructed. Experimental results for
I dflerent cases are presented

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