Title:
POWER CHARACTERISTIC CALCULATION DEVICE AND POWER CHARACTERISTIC CALCULATION METHOD
Document Type and Number:
Japanese Patent JP2023124586
Kind Code:
A
Abstract:
To accurately calculate load characteristics.SOLUTION: A power characteristic calculation device includes: a first acquisition unit that acquires power flow data measurement values measured sequentially at multiple time points for each branch where a load and a distributed power source are linked with each other; and a calculation unit that calculates a load characteristic of the load at a predetermined time point on the basis of a relationship between active power and reactive power included in the power flow data measurement value. The calculation unit calculates the load characteristic on the basis of a plurality of relationships between active power and reactive power in the vicinity of the predetermined time point. By using the calculated load characteristics and a power factor of the distributed power source, the power flow data measurement value can be separated into the load value and the distributed power source output.SELECTED DRAWING: Figure 6
Inventors:
MIYOSHI HARUKI
Application Number:
JP2022028448A
Publication Date:
September 06, 2023
Filing Date:
February 25, 2022
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H02J3/00; H02J3/38; H02J13/00
Attorney, Agent or Firm:
Patent Attorney Corporation Sunnext International Patent Office