Type 13 Design A Starboard Side; SS Northern Wind

Stamp of "163"; Discontinued stamp JUL 29 1918

Type 13 Design A Port Side; SS Northern Wind

Stamp of "166"; Discontinued stamp JUL 29 1918

Type 13 Design B Starboard Side; SS Northern Wind

Print No 74

Type 13 Design B Port Side; SS Northern Wind

Print No. 71

Type 13 Design D Port Side; SS Northern Wind

Print No:183.; Initials Lower Right: ELW (Everett Longley Warner)

Type 13 Design E Starboard Side; SS Northern Wind

Print No:80

Type 13 Design E Port Side; SS Northern Wind

Print No: 66

Type 13 Design F Starboard Side; SS Northern Wind

Print No: 80; Initials Lower Left: WH; Initials Lower Left: DN; Initials Lower Left: GY

Type 13 Design F Port Side; SS Northern Wind

Print No:66; Initials Lower Left: WH; Initials Lower Left: DN; Initials Lower Left: GY

Type 13 Design G Starboard Side; SS Northern Wind

Print No:67; Initials Lower Left: OL; Initials Lower Left: HD; Initials Lower Left: RN; Initials Lower Right: ELW (Everett Longley Warner)

Type 13 Design G Port Side; SS Northern Wind

Print No:70; Initials Lower Left: OL; Initials Lower Left: HD; Initials Lower Left: RN; Initials Lower Right: ELW (Everett Longley Warner)

Changes in phytoplankton composition in response to tides, wind-induced mixing conditions, and freshwater outflows in an urbanised estuarine complex

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Controlador adaptativo por posicionamento de pólos e estrutura variável aplicado ao controle de geradores eólicos baseados em máquina de indução duplamente alimentada

In the last decade, the renewable energy sources have present a major propulsion in the world due to several factors: political, environmental, financial and others. Within this context, we have in particular the energy obtained through wind, wind energy - that has highlighted with rapid growth in recent years, including in Brazil, mostly in the Northeast, due to it s benefit-cost between the clean energies. In this context, we propose to compare the variable structure adaptive pole placement control (VS-APPC) with a traditional control technique proportional integral controller (PI), applied to set the control of machine side in a conversion system using a wind generator based on Double-Fed Induction Generator (DFIG). Robustness and performance tests were carried out to the uncertainties of the internal parameters of the machine and variations of speed reference.