Investigation of AC/DC converter harmonics by an analytical based time-discrete approach

By investigating AC/DC converter harmonics in more detail, the interaction of AC and DC side as well as nonideal conditions have to be considered. This paper proposes a time discrete approach, which allows one to calculate analytically the steady state DC currents at the firing points of each thyris...

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Bibliographic Details
Published in:IEEE transactions on power delivery 1997-04, Vol.12 (2), p.874-880
Main Authors: Grotzbach, M., Ried, C.
Format: Article
Language:English
Subjects:
Analog-digital conversion
Applied sciences
DC-DC power converters
Electrical engineering. Electrical power engineering
Exact sciences and technology
Harmonic analysis
Harmonic distortion
IEEE members
Newton method
Power electronics, power supplies
State-space methods
Steady-state
Thyristors
Voltage
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Summary:By investigating AC/DC converter harmonics in more detail, the interaction of AC and DC side as well as nonideal conditions have to be considered. This paper proposes a time discrete approach, which allows one to calculate analytically the steady state DC currents at the firing points of each thyristor, if voltage harmonics or asymmetries disturb the ideal operation conditions. This forms the basis for an effective and accurate evaluation of AC/DC converter harmonics, especially for the investigation of parameter dependencies and for the application in harmonic distortion studies. Selected examples demonstrate particularly the analytical description of the discrete DC currents.
ISSN:0885-8977
1937-4208
DOI:10.1109/61.584407