VARRICCHIO, S.L., FREITAS, F.D., MARTINS, N., VELIZ, F.C., Computation of Dominant Poles and Residue Matrices for Multivariable Transfer Functions of Infinite Power System Models, IEEE Transactions on Power Systems, USA, Vol. 30, Issue:3, p. 1131...
F. D. FREITAS, N. MARTINS, S. L. VARRICCHIO, J. ROMMES, F. C. VELIZ, Reduced-Order Transfer Matrices from RLC Network Descriptor Models of Electric Power Grids. IEEE Transactions on Power Systems, USA, Vol. 26, Issue 4, November 2011, pp. 1905-1916...
GOMES JR, Sérgio; MARTINS, Nelson; PORTELA, Carlos. Sequential Computation of Transfer Function Dominant Poles of s-Domain System Models. IEEE Transactions on Power Systems, USA, Vol. 24, No. 2, p. 776-784, May 2009. Download from IEEE Xplore.
GOMES JR, Sérgio; MARTINS, Nelson; VARRICCHIO, Sergio Luiz; PORTELA, Carlos Manuel de Jesus C. M. Modal Analysis of Electromagnetic Transients in ac Networks Having Long Transmission Lines IEEE Transactions on Power Delivery, USA, Vol. 20, No. 4, p...
CARVALHO, Antonio Ricardo C D; BIANCO, André; AZEVEDO, Rogério M; VARRICCHIO, Sérgio Luis; MARTINS, Nelson; MENZIES, Donald; GRAHAM, John F; UCHOAS, Fabiano. Estudo de Arco Secundário para Aplicação de Religamento Monopolar na Interligação Brasil...