J. Arrillaga et al., SERIES SELF-EXCITED HVDC GENERATION, IEE proceedings. Part C. Generation, transmission and distribution, 140(2), 1993, pp. 141-146
A new concept in HVDC generation simplifies the design of unit-connect
ed generator-convertor plant. The generator exciter winding is connect
ed in series with the output of the HVDC convertor and takes the place
of the conventional smoothing reactor. As the existing steady-state A
C-DC formulation is not directly applicable to the series connection a
new algorithm is developed to simulate its performance. The results o
f the simulation show that series excitation is less efficient at low
power levels but extends the temporary power conversion capability of
the unit connection and permits fast fault clearances.