Modular Fault Tolerant Flux Switching Permanent Magnet Linear Motor Control Method

Abstract

The invention discloses a modularized fault-tolerant magnetic flow switching permanent magnet linear motor and a control method thereof. The motor comprises a primary tooth and secondary tooth. The primary tooth and the secondary tooth are all of a salient pole structure. The primary tooth comprises permanent magnet bodies, armature windings and fault-tolerant type III-shaped magnetism conducting modules. Each III-shaped magnetism conducting module comprises fault-tolerant teeth and magnetism conducting iron cores which are transversely arrayed side by side. The fault-tolerant teeth are arranged in the magnetism conducting iron cores. The permanent magnets magnetize in a tangential alternating mode. Each permanent magnet is embedded between two adjacent III-shaped magnetism conducting modules. The each-phase armature windings are in a centralized winding mode, are arranged in grooves of III-shaped magnetism conducting modules, transversely penetrate through the permanent magnets, and are wound on the primary tooth. The fault-tolerant teeth are arranged between the each-phase armature windings to space the each-phase armature windings. The invention further provides a fault-tolerant control strategy which comprises a fault-tolerant control method and a fault-tolerant topology structure. The modularized fault-tolerant magnetic flow switching permanent magnet linear motor has the advantages of being simple in structure, high in power, low in cost, strong in ability of operating with failures, and the like.

Description

technical field [0001] The invention relates to a control method of a permanent magnet linear motor, in particular to a control method of a modular fault-tolerant magnetic flux switching permanent magnet linear motor. Background technique [0002] With the acceleration of the world's urbanization process, traffic problems have increasingly become a difficult problem for urban development. Urban rail transit vehicles such as subways, light rails, and trams have been applied and developed to varying degrees. Among them, the research and development of the traction motor has become the key to the technical problems of rail transit. [0003] In terms of technology, earlier, the rail transportation system was driven by a rotating motor. It has been used in rail transportation for a long time due to its simple structure, mature technology, and large carrying capacity. However, its physical adhesion limits the acceleration and deceleration performance. , and the disadvantages of ...

AI Technical Summary

Problems solved by technology

For example, for the primary integrated modular structure, alternating magnetic pole windings, adding redundant windings, etc., but because the optimization method of the structure is usually restricted by different types of motor structures, the fault tolerance performance of the body is limited, so the reliability of the system must be improved , on the basis of applying redundancy technology to the structure of the motor body, the focus of research should be on the fault sources other than the motor body, by developing the topological structure of the high-reliability drive circuit, intelligent control methods

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