TI - Study of the applications of hvdc variable speed unit connected generation to hydro developments in the brazilian amazon region PY - 1993 AU - Reis, Lineu Belico dos AU - Ellery, E H AU - Coutinho, C E Oliveira AU - Campos Barros, J G T2 - International Colloquium on Hvdc and Flexible Ac Transmission Systems J2 - Papers Presented PP - Wellington PB - Cigre/Transpower ER -