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Title:
POWER CONVERSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/176624
Kind Code:
A1
Abstract:
Provided is a power conversion system in which a converter 10 and an inverter 20 are connected by a DC coupling unit 30 having an inductance component, and which controls the switching operation of at least one among the converter 10 and the inverter 20 such that the switching frequencies of the converter 10 and the inverter 20 which are PWM-controlled are made equal, the switching frequencies are set higher than the resonance frequency of the resonance circuit including a first capacitor Cc, a second capacitor Ci, and a DC coupling unit 30 such as a cable, and predetermined components of voltage pulsations of the capacitors Cc, Ci caused by the switching operations of the converter 10 and the inverter 20 have substantially the same phase.

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Inventors:
TOBA AKIO (JP)
Application Number:
PCT/JP2022/004110
Publication Date:
August 25, 2022
Filing Date:
February 02, 2022
Export Citation:
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Assignee:
FUJI ELECTRIC CO LTD (JP)
International Classes:
H02M7/12; H02M7/48
Foreign References:
JPH1118435A1999-01-22
JP2006288035A2006-10-19
JP2013207962A2013-10-07
JP2008259343A2008-10-23
JP2006067754A2006-03-09
JPH04121065A1992-04-22
JP2017204976A2017-11-16
JP4373040B22009-11-25
JP2021023112A2021-02-22
Other References:
See also references of EP 4175152A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
Download PDF:
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