Projeto e desenvolvimento de um microgerador brushless de ímãs permanentes de fluxo radial com oito polos

Abstract

This work addresses the microgeneration of electrical energy using an eight-pole radial permanent magnet brushless microgenerator with a power output of 350 W and an efficiency of 86.60%. Data on voltage, current, power, and cogging torque were collected during tests conducted under load and no-load conditions. Two rotor configurations were analyzed: the first with magnets parallel to the stator slots, and the second configuration with a 7.46° inclination. Performance analyses of the brushless microgenerator highlight its advantages in terms of energy efficiency, power output, and robustness. Detailed discussions cover the operating principles, technical aspects, permanent magnet configurations and their effects, as well as the stator winding design. Finally, experimental results demonstrate the feasibility and effectiveness of the microgenerator developed during this thesis work.