Apparatus and method for controlling delta-connected cascaded multilevel converter

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United States of America Patent

PATENT NO 12113456
APP PUB NO 20220407407A1
SERIAL NO

17753860

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Abstract

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Embodiments of present disclosure relate to an apparatus and a method for controlling a delta-connected cascaded multilevel converter. The apparatus (100) for controlling a delta-connected cascaded multilevel converter (110) comprises: a converter controller (102) configured to: receive current signals indicating phase currents flowing through respective phase arms of the converter (110); determine a harmonic current signal indicating a circulating current of the converter (110) from the current signals; and generate, based on the determined harmonic current signal and a reference current signal, a harmonic voltage signal to cause an amplitude of the circulating current flowing through the phase arms of the converter (110) to be a predetermined amplitude.

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Patent Owner(s)

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ABB SCHWEIZ AG5400 BADEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Huang, Xing Beijing, CN 56 281
Li, Min Beijing, CN 751 7676
Pei, Guangming Beijing, CN 1 1
Wei, Hua Beijing, CN 38 133
Xie, Hailian Beijing, CN 8 9

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