Contribuição ao estudo e projeto de máquinas síncronas a ímãs permanentes para geração eólica e redução do conteúdo harmônico do fluxo indutor.

Abstract

The process of designing the drive design in electromechanics is essentially based on the best static-peripheral machine-converter association as a solution to a drive problem. This work analyzes and develops permanent magnet devices for operation as a stand-alone generator and as part of a wind farm system. Based on the design process developed and field calculations analysis, consolidation studies on these devices were performed, which led to the configuration of the configuration to interior magnets (IPM), and to the transverse magnetization, as the best suitability for the case. preposition. In order to reduce the harmonic content of the generated voltages and the torque reluctance component due to the opening of the grooves, a technique for minimizing inductor flux ripples for this type of structure has been developed and validated experimentally. In order to give consistency to the required specifications and the design process developed, several prototypes were designed based on the magnetic circuit of this structure (IPM), making a total of nine configurations built and analyzed. According to the prototype characterization and validation results carried out, the importance of the design process and the method of minimizing the developed torque reluctance component, as well as of a parameter determination technique, were verified. equivalent circuits, such as design and sizing elements for this type of configuration.