T&D 2002 - Latin America 18 - 22, March 2002 – São Paulo, SP - BRASIL CEPEL CEPEL M M ODAL ODAL A A NALYSIS NALYSIS of I of I NDUSTRIAL NDUSTRIAL S S YSTEM YSTEM H H ARMONICS ARMONICS U U SING SING the S the S - - D D OMAIN OMAIN A A PPROACH PPROACH Sergio L. Varricchio Sergio Gomes Jr Nelson Martins Sergio L. Varricchio Sergio Gomes Jr Nelson Martins