Title:
Electricity supply system
Document Type and Number:
Japanese Patent JP6095407
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a power supply system whose autonomous operation switcher can be simply introduced additionally to an existing dwelling house.SOLUTION: A power supply system supplies power to a load in a dwelling house from natural energy of a photovoltaic power generation unit and electric energy of a power storage unit while interconnecting with a system, and can continuously supply power to a load in the dwelling house being used during system interconnection when the system is interrupted. The power supply system comprises an autonomous operation switcher having one frame which includes: a first terminal to which the system is connected; a second terminal to which a power distribution panel is connected; an earth leakage breaker which receives power from the system through the first terminal; an electromagnetic contactor for disconnecting the second terminal side from the system when interruption of power supply occurs; a first breaker for connecting the photovoltaic power generation unit to the second terminal; a second breaker for connecting a power converter in the power storage unit to the second terminal; and a current transformer for detecting inverse load flow from the power storage unit to the first terminal side.
Inventors:
Makoto Kasugai
Naohide Tsuchimoto
Naohide Tsuchimoto
Application Number:
JP2013030923A
Publication Date:
March 15, 2017
Filing Date:
February 20, 2013
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02J3/38; B60L11/18; H02J3/32; H02J7/00; H02J7/35; H02J9/06
Domestic Patent References:
| JP2008283740A | ||||
| JP2007330083A |
Foreign References:
| WO2012106252A1 |
Attorney, Agent or Firm:
Hiroaki Sakai