The calculation of the magnetic field of the synchronous magnetoelectric generator

Abstract

The paper considers the solving of the applied task of developing electric machines, particularly, designing of brushless synchronous magneto-electric machine. The need in electric machines, where the electromagnetic field excitation occurs because of using hard permanent magnets, is growing constantly which follows the creation of modern permanent magnets on the basis of neodymium alloys (NdFeB) having high energy response. However, for the generator operational mode the considered type of machines has a disadvantage being highly intense armature reaction, which leads to the rough external response. The main purpose of this paper is to introduce the structure of magneto-electric machine, which provides increasing armature reaction in a generator mode and increase electromotive force (EMF) in windings and, consequently, improving overall machine performance in general. The approaches to the development of magneto-electric machines with U-shaped layer magnetic core with electromagnetic field excitation from permanent magnets located on the machine rotor are considered.