Power conversion system

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United States of America Patent

PATENT NO 11563367
APP PUB NO 20220352805A1
SERIAL NO

17771629

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Ina power conversion system having a fixed pulse pattern modulation unit 2 that is configured to refer to tables storing therein pulse patterns that determine respective command voltage levels corresponding to phase information for each modulation ratio and to generate a gate signal g on the basis of a command modulation ratio d and a control phase θ and driving a power converter 3 on the basis of the gate signal g, the fixed pulse pattern modulation unit 2 is further configured to, when performing a pulse pattern transition, search for a proper post-transition table reference position and make a command voltage level follow a command voltage level of a post-transition pulse pattern. With this, the power conversion system that can perform the pulse pattern transition without current impulse and that can also be applied to a multi-level power converter having four levels or more can be provided.

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Patent Owner(s)

Patent OwnerAddress
MEIDENSHA CORPORATION1-1 OSAKI 2-CHOME SHINAGAWA-KU TOKYO 1416029 ?1416029

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ogawa, Ryuichi Numazu, JP 25 416
Takiguchi, Masashi Fuji, JP 6 11

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