Normal/radial parallel mixed excitation magnetic synchronization motor

Abstract

The invention relates to a tangential / radial parallel hybrid excitation synchronous motor, belonging to hybrid excitation synchronous motors. Wherein, the stator is made up of a stator core and an armature winding, etc, the rotor is made up of a rotor core(3), a permanent magnetism piece(10),an excitation winding(4) and a rotating shaft(9),etc; the tooth of the rotor core is wined with excitation coils which are connected to form the excitation winding(4), the magnetic poles of different tools change alternately, the electric excitation field forms a radial structure, the permanent magnetismpiece(10) is inserted between two adjacent pole terminals(31) of the rotor core(3) ,the permanent magnetism field forms a tangential structure and two adjacent permanent magnetism pieces are parallel, and the polarity of the magnetic field is same as that generated by the excitation coils on the magnetic poles, which two together form the main magnetic field. The magnetic filed of the permanent magnetism and the excitation winding is also parallel, the main magnetic field can adjust easily and has the advantages of high excitation efficiency, great power density, convenient control, etc. Themotor with a simple structure can be a main generator of the device of the airplane, naval vessels, vehicle, etc; be a waterwheel, a steamer, an aerogenerator, etc; and also be a motor.

Description

technical field [0001] The invention relates to a tangential and radial parallel hybrid excitation synchronous motor, which belongs to the field of hybrid excitation synchronous motors. Background technique [0002] Hybrid excitation synchronous motor is a new type of motor structure first proposed by Russian scholars in the 1980s. It is different from the structure of traditional electric excitation synchronous motor and permanent magnet synchronous motor. There are both permanent magnets and field windings in the hybrid excitation synchronous motor, and the two magnetic potential sources exist at the same time. It integrates the advantages of convenient magnetic field adjustment and small magnetic capacity of electric excitation synchronous motor, high efficiency and large torque / mass ratio of permanent magnet synchronous motor, and overcomes the defect of difficult magnetic field adjustment of permanent magnet synchronous motor. Promote application value. [0003] At p...

AI Technical Summary

Problems solved by technology

The hybrid excitation synchronous motor is reliable and stable, and the air gap magnetic density is easy to adjust. It can provide higher torque density and power density than the electric excitation synchronous motor, so it is especially suitable for stable output voltage, large speed range, large torque and high power. At present, hybrid excitation synchronous motors have problems such as complex structure, many additional air gaps in the magnetic circuit, and difficulty in fully adjusting the main magnetic field.

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