Title:
電力監視システム
Document Type and Number:
Japanese Patent JP5675543
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To rapidly detect a reverse power flow.SOLUTION: A power measurement sensor 10 measures electric energy supplied through a power line connecting a power system 200 to an apparatus in a consumer house. A reverse power flow sensor 20 detects a reverse power flow in the power line. A control device 30 connected to the power measurement sensor 10 and the reverse power flow sensor 20 with the same communication line performs serial communication with the power measurement sensor 10 and the reverse power flow sensor 20. Transmission of a measurement data request from the control device 30 to the power measurement sensor 10 and transmission of measurement data, which is a response to the request, from the power measurement sensor 10 to the control device 30 are executed periodically through the communication line. When detecting the reverse power flow in the power line, the reverse power flow sensor 20 executes interrupt processing in the communication line to transmit reverse power flow detection notification to the control device 30.
Inventors:
大熊 利明
萩原 龍蔵
萩原 龍蔵
Application Number:
JP2011209751A
Publication Date:
February 25, 2015
Filing Date:
September 26, 2011
Export Citation:
Assignee:
三洋電機株式会社
International Classes:
H02J3/38; H02J13/00
Attorney, Agent or Firm:
Sakaki Morishita
Satoshi Soda
Satoshi Soda