Title:
POWER CONVERSION DEVICE AND POWER CONVERSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/220763
Kind Code:
A1
Abstract:
According to the present invention, a control circuit (50) performs a correction by multiplying a reference gain by a correction value which is set in association with charge state information about a storage battery (1), and adjusts the inclination of frequency drooping characteristics by using the corrected reference gain as a first gain which controls a DC/AC inverter (20), wherein the correction value is a value which gradually decreases in response to an increase in the charging state information about the storage battery (1), the minimum value of the correction value is N1 which is a real number that is greater than 0 in a first charge state in which the charging of the storage battery (1) is stopped, and the maximum value of the correction value is N2 which is a real number that is greater than N1 in a second charge state in which the discharging of the storage battery (1) is stopped.
Inventors:
FUJIWARA KENJI (JP)
OKUDA TATSUYA (JP)
KATO TAKAHIRO (JP)
OKUDA TATSUYA (JP)
KATO TAKAHIRO (JP)
Application Number:
PCT/JP2019/011072
Publication Date:
November 21, 2019
Filing Date:
March 18, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02M7/493; H02J3/32; H02J3/38; H02M7/48
Domestic Patent References:
| WO2017179306A1 | 2017-10-19 | |||
| WO2014103192A1 | 2014-07-03 |
Foreign References:
| US20170235322A1 | 2017-08-17 |
Attorney, Agent or Firm:
MURAKAMI Keigo et al. (JP)
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