Open AccessVoltage generation characteristics of an Axial Flux Permanent Magnet (AFPM) generator
Author(s) -
R Rusmana,
Alvera Melkias,
N Nurrohman,
I Made Wiwit Kastawan
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/830/4/042019
Subject(s) - stator , rotor (electric) , magnet , generator (circuit theory) , voltage , electrical engineering , materials science , permanent magnet synchronous generator , shunt generator , mechanics , physics , engineering , power (physics) , thermodynamics
A specially designed low-speed generator was enveloped based on low-speed turbines. The axial flux permanent magnet (AFPM) generator type is chosen to meet these needs. The generator consists of a stator and a rotor. The distance between the stator and rotor was studied to determine the characteristics of the AFPM generator. Besides, the impact of rotational speed on the output voltage also considers - the stator armatures made of copper wire with a diameter of 0.2 mm. The number of turns of a winding was 200 turns, which produced a resistance of 100 ohms. The shape of the armatures adjusted to the shape of the magnet. The rotor discs occupied by 18 magnets arranged symmetrically. The size of the magnet was 50 mm long, 30 mm wide and 13 mm thick. The laboratory test conducted by placing the rotor ranging from 23 mm to 15 mm, with changes in the distance of 2 mm each, from the stator. From the measurement, the linear equation of output voltage versus the rpm curve obtained as well as the output voltage versus the stator-rotor distance equation. The results show that the increase of rpm and the closer the rotor-stator distance, the higher the output voltage.