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Title:
電力変換装置および電力変換システム
Document Type and Number:
Japanese Patent JP6877640
Kind Code:
B2
Abstract:
A control circuit corrects a reference gain by multiplying the reference gain by a correction value set in association with state-of-charge information of a storage battery, and uses the corrected reference gain as a first gain for controlling a DC/AC inverter, to adjust the slope of frequency drooping characteristic. The correction value is a value that gradually decreases with increase in state-of-charge information of the storage battery, the minimum value of the correction value is N1 which is a real number greater than 0 and corresponding to a first state of charge for stopping charging of the storage battery, and the maximum value of the correction value is N2 which is a real number greater than N1 and corresponding to a second state of charge for stopping discharging of the storage battery.

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Inventors:
Kenji Fujiwara
Tatsuya Okuda
Takahiro Kato
Application Number:
JP2020519485A
Publication Date:
May 26, 2021
Filing Date:
March 18, 2019
Export Citation:
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Assignee:
Mitsubishi Electric Corporation
International Classes:
H02M7/493; H02J3/32; H02J3/38; H02J7/34; H02M7/48
Foreign References:
WO2017179306A1
WO2014103192A1
US20170235322
Attorney, Agent or Firm:
Patent Business Corporation Parumo Patent Office