Hochspannungs-Gleichstrom-Übertragungssystem mit Schwingungsdämpfung

Details

Veröffentlichungs-Nr.

EP2945253

Aktenzeichen

EP15165646

Anmeldetag

29. April 2015

Veröffentlichung

27. März 2019

Erteilung

27. März 2019

Rechtsraum

EP

IPC

H02J3/36H02M7/483H02M5/40H02M5/458H02M7/757

Abstract

A high voltage direct current (HVDC) transmission system (1) is provided. The high voltage direct current (HVDC) transmission system (1) includes a rectifier (13) converting alternating current (AC) power into DC power; an inverter (21) converting the DC power into the AC power; DC transmission lines (W1 and W2) transmitting the DC power obtained from the rectifier through conversion to the inverter; a first active power measurement unit measuring first active power input to the rectifier (13); a second active power measurement unit measuring second active power output from the inverter (21); and a first control unit (15) controlling the operations of the rectifier and the inverter based on the first active power measured and the second active power measured, wherein the first control unit senses oscillation (S110) generated in the HVDC transmission system (1) and generates a control signal (S150) for damping the sensed oscillation to control one or more of the rectifier (13) and the inverter (21). The damping signal is a power control signal (active or reactive). The frequency of the oscillation is also sensed and a suppression is attempted only if the frequency is in a predetermined range. AC filters and smoothing capacitors are also claimed.

Anmelder

Firma

LSIS Co., Ltd.

Land

🇰🇷 Südkorea

Fachgebiete