Significance of working point determining line current harmonics in controlled ac/dc converter

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:277508

Groetzbach, M; Bauta, M ^[1]

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1. Univ. of Federal Defence Munich, Neubiberg (Germany)

Determining line current harmonics in controlled ac/dc converters, the actual working point given by the average dc voltage and the dc mean current is of significant importance. For good dc smoothing, the consideration of a sufficient control margin in many applications leads to a distinct reduction evaluating harmonics. To investigate the general case including commutation and dc current ripple, IEEE-Std. 519 as well as the recent FFT-proposal are dealing with approximated angles. This simplification causes the problem of realization of the required dc mean current in cases of higher dc ripple. To avoid this, a modified version of the selection method is proposed and comparing time simulations show that only this procedure determines the line current harmonics with sufficient small errors.

• OSTI ID: 277508
• Report Number(s): CONF-960509--; ISBN 0-7803-3263-6
• Country of Publication: United States
• Language: English

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