Foundation Law Group, LLP
Device and method for extinction angle control of HVDC system
A device for extinction angle control of a high voltage direct current (HVDC) system, includes: a converter reactive power calculator calculating a reactive power variation amount of a converter included in the HVDC system, depending on firing angle control of the converter; an alternating current (AC) system short circuit level calculator calculating a short circuit level of an AC system by applying the reactive power variation amount to a short circuit level formula of the AC system connected to the HVDC system; an extinction angle variation value calculator calculating an extinction angle variation value of the converter, corresponding to the short circuit level; and an extinction angle controller controlling an extinction angle of the converter, depending on an extinction angle control value reflecting the extinction angle variation value.
KOREA ELECTRIC POWER CORPORATION
H Y G Y G H H H G H G
H02M Y02E G01R Y02E G01R H02M H02J H02J G01R H02M G01R
inventional additional additional additional inventional inventional inventional inventional inventional inventional inventional
Soon-Ho Chur-Hee Seong-Doo
Choi Lee Lee