Title:
エネルギー使用量推定装置及びエネルギー使用量推定方法
Document Type and Number:
Japanese Patent JP5859026
Kind Code:
B2
Abstract:
A power measure calculates, based on a current and a voltage measured at a predetermined location in a power supply line, active power and apparent power for each predetermined time period based on utilization of plural kinds of electric facilities connected to the power supply line. A data memory accumulates and stores data regarding the active power and the apparent power calculated by the power measure in a time-series manner. A variation detector analyzes data regarding the active power by what corresponds to a predetermined time period and stored in the data memory to detect a time slot at which there is an operation change in any one of the electric facilities. A distribution estimator calculates, when the variation detector detects the time slot, a power factor in the time slot, and estimates power consumption for each kind of the electric facilities in the time slot.
Inventors:
Shigenori Nakata
Makoto Katsukura
Masaaki Yabe
Noriyuki Kushiro
Makoto Katsukura
Masaaki Yabe
Noriyuki Kushiro
Application Number:
JP2013551165A
Publication Date:
February 10, 2016
Filing Date:
December 28, 2011
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G01R22/00; H02J13/00
Domestic Patent References:
| JP2001330630A | ||||
| JP2005354794A |
Attorney, Agent or Firm:
Kimura Mitsuru
Koji Yashima
Mie Hideki
Koji Yashima
Mie Hideki
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