Assessing the influence of the converter load on current and voltage curve distortions
Authors:
About authors
- Research assistant G.V. Plekhanov Saint Petersburg State Mining Institute
Abstract
The influence of converter load on distortion of current and voltage curves is evaluated. The indicators of electric power quality, on which the higher harmonics of converters have the greatest influence, including current curves for 6- and 12-pulse converters, are considered. The results of their Fourier series decomposition are obtained. The harmonic spectrum of these curves is analyzed. Relations reflecting the dependence of the order of harmonics on the converter pulses and allowing the selection of appropriate filters to reduce the negative influence of the converter harmonics on the operation modes of electric networks are given.
References
- Горбачев Г.Н. Промышленная электроника. М.: Энергоатомиздат, 1988.
- ГОСТ 13109-97. Электрическая энергия. Совместимость технических средств электромагнитная. Нормы качества электрической энергии в системах электроснабжения общего назначения / Госстандарт России. М., 1997.
- Федоров А.А. Основы электроснабжения промышленных предприятий. М.: Энергия, 1979.
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