Multi-phase permanent magnet fault-tolerant servo motor

Abstract

The invention relates to the technical field of permanent magnet motors, and discloses a multi-phase permanent magnet fault-tolerant servo motor. The motor comprises a modular stator, a special-shapedarray coreless rotor and a casing. The outer circle surface of the modular stator is fixed on the inner circle surface of the casing. The special-shaped array coreless rotor is arranged in the modular stator, a preset air gap is formed between the special-shaped array coreless rotor and the modular stator, the modular stator is provided with Q grooves used for arranging Q stator submodules, and Qis an even number; the special-shaped array coreless rotor comprises a rotating shaft and p-pole permanent magnets, each pole permanent magnet is of a structure of a plurality of special-shaped arraymagnetizing permanent magnets, the p-pole permanent magnets are connected with the rotating shaft in a dovetail groove mode, and p is a positive integer. Therefore, the problems of low reliability, no fault-tolerant capability, slow dynamic response, low power density and the like of a conventional servo motor can be solved.

Description

technical field [0001] The invention relates to the technical field of permanent magnet motors, in particular to a multiphase permanent magnet fault-tolerant servo motor. Background technique [0002] Aerospace vehicles are a new generation of air-to-ground shuttle systems that can achieve horizontal takeoff and landing, and can be reused. They have the characteristics of compact space structure, high maneuverability, and fast flight speed. They have great application value in the military and civilian fields. As the core component of the aerospace vehicle, the performance of the servo system directly determines the dynamic quality and comprehensive efficiency of the aircraft control. When an open circuit or short circuit fault occurs in a conventional servo motor, the motor will not work normally. In severe cases, there is a risk of motor burnout, and the power density of the motor is difficult to increase, which cannot meet the requirements of aerospace vehicles such as hi...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a multi-phase permanent magnet fault-tolerant servo motor, which can solve the problems of conventional servo motors such as low reliability, no fault tolerance, slow dynamic response, and low power density.

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