Hybrid excitation motor device

Abstract

The invention provides a hybrid excitation motor device, comprising a hybrid excitation working motor on an engine base and a winding type excitation motor, wherein the hybrid excitation working motor comprises a spindle, a working motor stator winding, a stator core, a permanent magnet, an excitation pole core and an exciting winding; the spindle is supported on the engine base; the excitation pole core is sleeved on the spindle; the permanent magnet is arranged in the middle of the excitation pole core in a radial direction; the exciting winding is wound on the excitation pole core; the stator core is arranged outside the excitation pole core; and the stator winding is embedded in the stator core. The winding type excitation motor comprises an excitation motor stator core, an excitation motor stator winding, an excitation motor rotor winding and an excitation motor rotor core, wherein the excitation motor rotor core is sleeved on the spindle; the excitation motor rotor winding is wound on the excitation motor rotor core; the excitation motor stator core is arranged outside the excitation motor rotor core; and the excitation motor stator winding is embedded in a slot of the excitation motor stator core. The hybrid excitation motor device can meet the requirements of low-speed high torque and high revolving speed, improves the efficiency of the motor, and enlarges the range of speed regulation of the motor.

Description

technical field [0001] The invention is a hybrid excitation motor device, which belongs to the modification technology of the hybrid excitation motor device. Background technique [0002] Existing permanent magnet motors have high efficiency, low rotor heat generation, and light moment of inertia. They are widely used in high-speed and light-load fields such as robots and machining centers. In recent years, permanent magnet motors have begun to be used in electric vehicles and some heavy-duty equipment. In order to be able to run at high speeds, it is also required to provide high torque at low speeds. Since the characteristic of the permanent magnet motor is a constant torque characteristic, it is difficult to meet the requirements of large speed range and large torque at the same time. Therefore, people put forward various hybrid excitation assumptions, and invented hybrid excitation motors with various structural forms to solve the problems of low speed, high torque and ...

AI Technical Summary

Problems solved by technology

However, the efficiency of these hybrid excitation motors in permanent magnet motors and the expansion of the speed range of permanent magnet motors need to be improved.

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