Title:
電力変換装置および電力変換システム
Document Type and Number:
Japanese Patent JP6566659
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To solve the problem that, in a power conversion system that is interconnected to a commercial system, a power generation facility of 30 kW can be constructed by using three power conversion devices of which the rating output capacity is 10 kW in parallel or a power generation facility of 100 kW can be constructed by using ten power conversion devices in parallel, automatic re-interconnection in the case of power failure recovery is approved since a system of which the output capacity is less than 50 kW becomes low-voltage interconnection but interconnection standby (manual re-interconnection) is required in the case of power failure recovery since a system of which the output capacity is 50 kW or more becomes high-voltage interconnection, thereby requirements of the high-voltage interconnection are not satisfied even if a power generation facility of 50 kW or more is constructed by using power conversion devices for low-voltage interconnection in parallel.SOLUTION: As a re-interconnecting operation in the case of recovery after a power source generated from the commercial system disappears, based on setting of an automatic interconnection possibility that is stored in storage means beforehand, either automatic re-interconnection or manual re-interconnection can be selected and executed.SELECTED DRAWING: Figure 1
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Inventors:
Hiroshi Ito
Kazuhiko Naito
Kazuhiko Naito
Application Number:
JP2015036334A
Publication Date:
August 28, 2019
Filing Date:
February 26, 2015
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02M7/48; H02J3/38
Domestic Patent References:
| JP11032440A | ||||
| JP9271141A | ||||
| JP2006254537A | ||||
| JP2005057943A | ||||
| JP2003319561A | ||||
| JP2006187196A | ||||
| JP2013240145A |
Foreign References:
| WO2013179357A1 |
Attorney, Agent or Firm:
Jun Takamura