masterThesis
Estudo térmico da excitatriz estática do gerador da usina hidrelétrica derivação do Rio Jordão usando sensores a fibra ótica
Fecha
2013-12-13Registro en:
BORTOLOTTI, Fernando. Estudo térmico da excitatriz estática do gerador da usina hidrelétrica derivação do Rio Jordão usando sensores a fibra ótica. 2013. 84 f. Dissertação (Mestrado em Engenharia Elétrica) - Universidade Tecnológica Federal do Paraná, Pato Branco, 2013.
Autor
Bortolotti, Fernando
Resumen
This work aims to study the static exciter thermal behavior of the hydroelectric power
plant Rio Jordão (UHEDRJ) using fiber Bragg gratings as temperature sensor. The
components of the static exciter are presented, with a focus on three-phase thyristor controlled bridge rectifier. The calibration allows knowing the errors and uncertainties of the sensors and the greatest uncertainty contributions due to dispersion of the samples and adjusting the curves by the method of minimun squares.
The static exciter instrumentation allows performed the tests in various operating
conditions of the generating unit: starting unit, excitation empty (with the generator
energized but not connected to the grid); excited and synchronized (energized and
synchronized with the power grid), ramp load to rated load and the unit stopped. The tests allow to estimate the thermal behavior of the bridge rectifier, temperature
variations of each thyristor in the panel and how occur the thermal dissipation.