Title:
POWER SYSTEM STATE ESTIMATION DEVICE AND POWER SYSTEM STATE ESTIMATION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/024424
Kind Code:
A1
Abstract:
The present invention aims to take power consumption device changes into consideration and estimate the state of a power system. A power system state estimation device comprises: an input unit into which the active power of a load system is input; a setting unit for setting a PQ relational expression; a state estimation unit for estimating the state of the power system on the basis of the PQ relational expression; and a correction amount estimation unit for estimating a correction amount for correcting the PQ relational expression, on the basis of preset classification information. The state estimation unit: finds the reactive power for the load system on the basis of the PQ relational expression corrected on the basis of the correction amount; and estimates the state of the power system, using the reactive power for the load system.
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Inventors:
TAKAGUCHI YUSUKE (JP)
YASUNAMI KAZUHIRO (JP)
IWAMI SUGURU (JP)
KIBI KAZUHITO (JP)
YASUNAMI KAZUHIRO (JP)
IWAMI SUGURU (JP)
KIBI KAZUHITO (JP)
Application Number:
PCT/JP2019/031165
Publication Date:
February 11, 2021
Filing Date:
August 07, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02J3/00; H02J3/16
Foreign References:
| JP2018152935A | 2018-09-27 | |||
| JP2012175778A | 2012-09-10 | |||
| JP2012191777A | 2012-10-04 | |||
| JPH08228437A | 1996-09-03 |
Attorney, Agent or Firm:
YOSHITAKE Hidetoshi et al. (JP)
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