Statusschätzungsvorrichtung und Statusschätzungsverfahren

Details

Veröffentlichungs-Nr.

EP4060849

Aktenzeichen

EP21193653

Anmeldetag

27. August 2021

Veröffentlichung

2. August 2023

Erteilung

2. August 2023

Rechtsraum

EP

IPC

H02J3/24

Abstract

To enhance the performance of estimation of the state of an electrical power system.A state estimation system 1 that estimates a state of an electrical power system includes: a storage section that stores instantaneous value information D4 which is information of instantaneous values received from the electrical power system, and remote telemetry information D2, and phasor measurement information D3 which are measurement information received from the electrical power system; an instantaneous value processing section 3 that judges, on a basis of the instantaneous value information D4, whether or not effective phase information can be obtained from the instantaneous value information D4, and calculates phase information, and an effective value from the instantaneous value information in a case that it is judged that effective phase information can be obtained from the instantaneous value information, and calculates an effective value without calculating phase information from the instantaneous value information in a case that it is judged that effective phase information cannot be obtained from the instantaneous value information; anda state estimating section 4 that estimates the state of the electrical power system on a basis of: the calculated phase information, and the effective value, or the effective value calculated without calculating the phase information; the remote telemetry information, and the phasor measurement information; and a topology of the electrical power system.

Anmelder

Firma

Hitachi, Ltd.

Land

🇯🇵 Japan

Fachgebiete