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A contribution for modeling controlled and uncontrolled AC/DC converters in harmonic power flows

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6 Author(s)
J. G. Mayordomo ; ETSI Telecomunicacion, Univ. Politecnica de Madrid, Spain ; L. F. Beites ; R. Asensi ; F. Orzaez
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The main object of this paper is to present a sequential method of adjusting the operating point of power converters within the framework of harmonic power flows. To do this, a unified formulation of previous work in the frequency domain has been developed, resulting in a set of compact and powerful analytical expressions for AC and DC magnitudes. Special attention has been paid to uncontrolled rectifiers. The proposed sequential method offers a more flexible and modular framework where AC and/or DC magnitudes can be used for defining the operating point. Moreover, it provides better convergence properties for iterative harmonic analysis (IHA). Newton's method or Gauss's method can be applied for IHA without special considerations. Finally, the solution obtained has been verified by means of time domain simulation and measurements

Published in:

IEEE Transactions on Power Delivery  (Volume:13 ,  Issue: 4 )