Avaliação paramétrica de um gerador linear síncrono para motogerador a pistão livre utilizados em veículos híbridos.

Abstract

This course completion work involves the theme related to the improvement of current hybrid car technologies, with a focus on linear generators that harness energy generated by the resonance vibration of a motor. The primary goal of this study is the simulation and parametric evaluation of a synchronous linear generator for a free piston motor-generator used in hybrid vehicle engines. This work presents a review of well-assessed articles and theses in the underexplored technology of the motor-generator system, examining works that employ applications in electric and hybrid cars, free piston engines, and synchronous linear generators. The study prioritizes grounding in mathematical and numerical modeling. Next, after the study, mathematical models meeting the project's objective were selected, i.e., those that could be used as a model of the motor-generator system. Therefore, efforts were made to calculate and model all parameters of the motor-generator system, with influential parameters necessitating the aid of numerical modeling. Thus, through finite element software assistance, the numerical modeling generated information on magnetic flux, electrical voltage, and electrical force based on dimensions and materials present in the generator. Finally, all generator input parameters were analyzed. The analysis observes the behavior of interest results through changes in input parameters, thereby obtaining a more optimized model. Still, in this phase, the objective was to control the variables that the linear generator sends and receives from the free piston engine. The obtained results demonstrate the feasibility of creating linear generator prototype projects to be used in hybrid vehicle projects coupled to the shaft of a free piston engine. In this way, the linear generator can generate energy from the operation of the free piston engine.