Desenvolvimento de um controlador de carga para gerador síncrono de ímãs permanentes acoplado à bicicleta ergométrica

Abstract

In exercise bikes all the energy imposed by the user is tranformed in heat and noise, nothing more. The literature show us the viability of generating energy through exercise bicycles, nevertheless, the procedures adopted altered the conventional operation of the equipment. This work used a trifasic syncronous generator of permanent magnets acopled to a conventional bicycle, and static conversors (retificator and BUCK) to manage the energy that is directioned to a resistive charge. The development of the charge controller came, primarily, from the PDCA method (Plan, Do, Check, Act), with the goal of provide de means to energy generation through ergometric bicycles without affect your standard behavior, in addition to proposing another method of operation that seeks the maximum power point of the user, through the technique of disturbing and observing. Through tests, it is proven that the system reliably replicated the bicycle’s usual operation, and data were obtained regarding the behavior of the generator’s output power according to the input speed and load variation. Likewise, the new mode showed promise based on the results of the tests, repeatedly finding the maximum power point, which demonstrates the correct performance of the search engine. This controller lays the foundations for new methods of operation that are more suited to the user’s wishes, without losing the conventional mode.