Title:
SYSTEM INTERCONNECTION APPARATUS
Document Type and Number:
Japanese Patent JP2018207638
Kind Code:
A
Abstract:
To increase safety of a system interconnection apparatus.SOLUTION: A system interconnection apparatus comprises: a DC-AC conversion device 22; a first system interconnection relay 13 provided in a first electric wire 11; a second system interconnection relay 14 provided in a second electric wire 12; a filter capacitor 26c which charges and discharges a power from the DC-AC conversion device 22; and a control part 30. When a commercial power system 3 is in a blackout, the control part 30 stops the operation of the DC-AC conversion device 22 so that an input side and an output side of the DC-AC conversion device 22 are electrically insulated after the DC-AC conversion device 22 operates the filter capacitor 26c to be charged. On the basis of a discharge state to each of the system interconnection relays 13 and 14 side from the filter capacitor 26c, the control part executes deposition determination control that determines whether at least any one of the system interconnection relays 13 and 14 is deposed.SELECTED DRAWING: Figure 2
Inventors:
YASUI HIROYUKI
Application Number:
JP2017109488A
Publication Date:
December 27, 2018
Filing Date:
June 01, 2017
Export Citation:
Assignee:
MURATA MANUFACTURING CO
International Classes:
H02M7/48; H02J3/38
Domestic Patent References:
| JP2011135767A | 2011-07-07 | |||
| JP2016086586A | 2016-05-19 |
Foreign References:
| WO2013001820A1 | 2013-01-03 |
Attorney, Agent or Firm:
Koji Fukui