Title :
An Automatic Control Scheme of HVDC Transmission Using Digital Techniques Part I Principles of Operation
Author :
Reeve, J. ; Sevcenco, J.A.
Author_Institution :
University of Waterloo
Abstract :
The requirements of HVdc converter control are achieved by dicrital techniques with minimisation of circuit complexity. Feed-back control is applied to modification of the counting of clock pulses derived from the ac system by a phase-locked frequency multiplier. Symmetry of the derived firinc, oulses can be retained for all modes of operation with smooth transition from full rectification to full inversion.
Keywords :
Automatic control; Automatic frequency control; Clocks; Counting circuits; Digital modulation; Frequency synchronization; HVDC transmission; Pulse circuits; Steady-state; Valves;
Journal_Title :
Power Apparatus and Systems, IEEE Transactions on
DOI :
10.1109/TPAS.1972.293388
