Design and Fabrication of a Radial Flux Permanent Magnet Synchronous Generator

Recently, wind power is one of alternative energy source that has the potential to replace fossil energy sources. Wind energy systems basically consist of two core components: wind turbines and electricity generators. The development of generator technology for low speed wind turbine applications has been diverse. Radial flux direction synchronous generators produce greater voltage compared to axial flux direction generators at the same machine radius. This paper presents the design and manufacture of low speed radial PMSG. The PMSG design focuses on the permanent use of magnets to minimize excitation losses. The generator is designed to produce a voltage of 26 volts at a speed of 375 rpm. Finite element method (FEM) based software is used to simulate PMSG performance. The test results show that the generator phase inductance and resistance are balanced. The test results show the no-load voltage and frequency generated according to the plan with an average voltage error of 5.52% and a frequency of 0.67%. When testing load there is a voltage drop of 6.03 volt at a current of 1.13 Ampere.