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Patent Searching and Data


Title:
FLICKER SUPPRESSION DEVICE AND FLICKER SUPPRESSION CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2022/163697
Kind Code:
A1
Abstract:
A frequency detector (120) detects a system frequency (f) from an AC voltage on an AC electrical path (20) to which power conditioners (30) for system-interconnection with distributed power sources (40) are connected. A power converter (110) is configured to inject advance reactive power or delay reactive power (Qc) into the AC electrical path (20). A controller (150) controls reactive power (Qc) outputted from the power converter (110) such that the delay reactive power is outputted in response to an increase of a system frequency (f) whereas the advance reactive power is outputted in response to a decrease of the system frequency (f).

Inventors:
YACHIDA TAKAYUKI (JP)
MORISHIMA NAOKI (JP)
KONDOH KENICHI (JP)
TEGURI AKIHIRO (JP)
TAKAHASHI TATSUYA (JP)
TANI NAOKI (JP)
Application Number:
PCT/JP2022/002885
Publication Date:
August 04, 2022
Filing Date:
January 26, 2022
Export Citation:
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Assignee:
TOSHIBA MITSUBISHI ELEC IND (JP)
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02J3/18
Foreign References:
JP2017147875A2017-08-24
JP2017147785A2017-08-24
JP2016092851A2016-05-23
JP2002101562A2002-04-05
JPH09247863A1997-09-19
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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