Abstract

The authors describe the control design of the Santo Tome back-to-back high voltage DC (HVDC) link. The Santo Tome HVDC converter will be the second DC link asynchronously connecting the Argentina and Brazil power systems. The focus is on the design of the reactive power control, automatic power control, load frequency control, and power modulation control automatic frequency control, automatic synchronizing control functions of the 50 MW DC link. Time simulation and frequency domain results are included to illustrate the system response and verify the adequacy of the controllers performance in achieving stable operating conditions. >

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