Aiming at the problem of inconvenient charging for military outdoor activities,a double-stator disc motion rectifier permanent magnet generator(DSMR-PMG)that can be carried in military backpacks is proposed,which is small in axial size and easy to carry,and can realize the collection of human movement energy.A multi-ring equivalent analytical model is established based on the structural characteristics and working principle of the generator,The no-load air-gap magnetic density,back electromotive force(EMF),load output voltage and output power of the generator are analytically calculated by integral method,and the calculated results are compared with the simulated results.Through the analysis of the output powers and efficiencies of the generators with different structural parameters and feed speeds,it is concluded that the output power of the generator is not obviously affected by the polar arc coefficient,is less affected by the thickness of permanent magnet and the length of air gap,and is greatly affected by the number of teeth of disc outer rotor and the gear transmission coefficient.The output power and efficiency of the generator can be effectively improved by increasing the modulus,feed speed and effective armature length.
disc permanent magnet generatormechanical rectificationelectromagnetic characteristicsoutput power