Development and Adaptation of Field Modulated Generator Systems for Wind Energy Applications.

摘要

Two Ward-Leonard Variable-Speed drive systems were set up for use as motoring dynamometers for testing field modulated generators. All the parts required for the dynamometer cradle arrangement were designed and fabricated. A specially designed test machine has been fabricated for the experimental investigation. The stator and rotor are being wound. The solid state inverter required for this system is being assembled in a conveniently transportable rack for testing. Parallel-bridge rectifier system studies were extended to include bridge-input capacitors for the case of resistive loads. Fourier analysis of source current and load current waveforms has been completed,and the results are presented in graphical form for different values of (X sub L/R sub l) and (X sub L/X sub C) ratios. Preliminary literature surveys have been completed in the study of: (1) the variable load band pass filter required at the output of the field modulated generator system;and (2) the snubber and voltage transient divided circuitry associated with the electronics subsystem. The results are summarized in this report.