Ar. Wood et al., UNIFIED CONTROL STRATEGY FOR BACK-TO-BACK HVDC CONVERTER STATIONS, IEE proceedings. Part C. Generation, transmission and distribution, 140(2), 1993, pp. 77-86
Control of HVDC back-to-back links is normally maintained with separat
e controllers at each end. This paper proposes a single unified contro
ller for both ends, and assesses its performance. Two new measures of
the difficulty of connecting a DC link to a weak AC system are develop
ed, which take into account the link control strategy. Simulation resu
lts are used to investigate the performance of the unified controller,
and the validity of the proposed measures.