Title:
POWER CONVERSION DEVICE, POWER CONVERSION SYSTEM, AND POWER CONVERSION DEVICE OPERATION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/012725
Kind Code:
A1
Abstract:
In a configuration in which a plurality of power conversion units each equipped with a power converter for performing power conversion between a power supply and a load are multiplexed in parallel, at least one of the plurality of power conversion units is provided with an operation management unit (13) for managing the operation of the power converter (11). The operation management unit (13) changes the proportional gain of a voltage adjustment unit (121) to which a steady deviation that is the difference between a target voltage and a load side voltage is input to perform proportional control, and compares a change in the proportional gain with a change in the steady deviation, thereby determining whether the operation is a stand-alone operation in which no power conversion units other than the relevant power conversion unit are operating.
Inventors:
KAWAI YU (JP)
KATO TAKAHIRO (JP)
KATO TAKAHIRO (JP)
Application Number:
PCT/JP2018/005405
Publication Date:
January 17, 2019
Filing Date:
February 16, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02M3/155; H02M7/12
Foreign References:
| JP2010011567A | 2010-01-14 | |||
| JPH06121534A | 1994-04-28 | |||
| JPH0956067A | 1997-02-25 |
Attorney, Agent or Firm:
OIWA Masuo et al. (JP)
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