EMC powerful STATCOMs with unbalanced conditions of electric supply grid

T.R. Khramshin, I.R. Abdulveleev, G.P. Kornilov

Abstract


This paper presents a study of electromagnetic compatibility high power STATCOMs when operating in unbalanced conditions of voltage. The mathematical model is implemented STATCOMs 12-pulses connection diagram of windings of the transformer and the three-level inverter switching angles are calculated based on the method of pulse width modulation with the removal of the selected harmonics. The power circuit comprises interphase reactor, serving to improve the harmonic content of the line current of the inverter. The description of the formation of the control pulses of the inverter. According to the research, the values of the coefficient of total harmonic distortion (THD) of current network diagram when exposed to a powerful STATCOMs different asymmetrical voltage drops from mains.

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References


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DOI: http://dx.doi.org/10.24892/RIJEE/20150207

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