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A New Mathematical Model to Calculate DC Transmission System’s Operating Parameters
Abstract:
To study the DC transmission system, and control it in real-time, many researchers make models based on the Fourier decomposition method. However, their calculations are not very precise. In this paper, a new mathematical model for the DC transmission system was build, by use of the Fourier formulas to decompose the current on the converter transformer’s valve side. Formulas for the operating parameters of both rectifier station and inverter station were derived, and the effects of the harmonics were considered. Results from theoretical calculations and experimental collection show that waveforms of the operating parameters are very similar. Even the experimental waveforms change a little, the calculation results can reflect the change clearly, which fully prove that the theoretical analysis is correct and the mathematical model is accurate.
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988-995
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Online since:
December 2012
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© 2013 Trans Tech Publications Ltd. All Rights Reserved
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