Independent sinusoidal driving permanent magnet synchronous fault-tolerant linear motor

A technology of permanent magnet synchronous and linear motors, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problem that the structure and concept of permanent magnet synchronous fault-tolerant linear motors are not mentioned, the armature winding does not mention the concentrated winding, and has not yet been obtained. Wide application and other issues, to achieve the effect of simplifying embedded wire production, high energy density, and high fault tolerance

Inactive Publication Date: 2010-08-25
NANTONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, permanent magnet fault-tolerant rotating motors are mainly used in aerospace, military, field mining and other special fields with large-scale investment in the country, but due to the permanent magnets embedded in the motor, it is not easy to dissipate heat, and the digital control system is relatively complex and other unfavorable factors , making it not yet widely used
[0006] At present, patents such as CN1886887, CN1937356A, CN101662256A, and CN101667805 all propose the concept of fault-tolerant motors, but they all apply fault-tolerant motors to rotat...

Method used

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  • Independent sinusoidal driving permanent magnet synchronous fault-tolerant linear motor
  • Independent sinusoidal driving permanent magnet synchronous fault-tolerant linear motor
  • Independent sinusoidal driving permanent magnet synchronous fault-tolerant linear motor

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Embodiment Construction

[0027]Take the four-phase unilateral permanent magnet synchronous fault-tolerant linear motor as an example, see attached drawings 2, 3, 4, and 5. The permanent magnet synchronous fault-tolerant linear motor of the present invention includes a base 3, a flat non-magnetic long back iron 11 fixed at the lowermost position in the center of the base 3, a flat halbach permanent magnet array long stator 12 fixed on the back iron 11, The mover 1 with a flat alveolar structure fixed above the long stator 12 has a small air gap 18 between the stator 12 and the mover 1, the linear guide pairs 5, 22 fixed on both sides of the base 3 and the displacement sensor 6, 20. Stoppers 4 fixed at both ends of the linear guide pair, limit switches 7 fixed at both ends of the displacement sensors 6 and 20, stoppers 21 fixed at both ends of the mover, connected between the mover 1 and the mover 6 of the displacement sensor The connection block 10 between them is connected to the connection block 9 be...

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Abstract

The invention discloses an independent sinusoidal driving permanent magnet synchronous fault-tolerant linear motor. The bottommost of the central position of a base is provided with flat non-magnetic long back iron which is provided with a flat halbach permanent magnet array long stator; a flat alveolar structural rotor is arranged above the flat halbach permanent magnet array long stator; an air gap is arranged between the stator and the rotor; linear guideway pairs are arranged on the base and at both sides of the flat non-magnetic long back iron; displacement sensors are arranged on the base and between the linear guideway pairs and the flat non-magnetic long back iron; the rotor comprises fault-tolerant teeth, armature teeth, concentrated windings twisted on the armature teeth, and a Hall sensor positioned on the lower end of the concentrated windings of an armature; the fault-tolerant teeth and the armature teeth are arranged at intervals; and rotor slots are positioned between the fault-tolerant teeth and the armature teeth. The invention has the advantages of simple structure, good independence among phases, small thrust fluctuation, easy heat radiation, high energy density, high reliability, higher fault-tolerant capability and the like.

Description

Technical field: [0001] The invention relates to the technical fields of electrician, motor and control, and is suitable for the motor drive field with high requirements on the system's trouble-free and continuous operation performance, and has a permanent magnet synchronous fault-tolerant linear motor structure with high reliability and high fault tolerance. Background technique: [0002] Compared with the linear displacement system driven by the rotary motor, the linear motor is a transmission device that directly converts electrical energy into linear motion mechanical energy without any intermediate conversion mechanism. It has large starting thrust, fast dynamic response, high positioning accuracy, speed and With the advantages of large acceleration, low vibration and noise, and unlimited stroke length, it realizes direct drive with simple structure, less nonlinear links and good dynamic response performance. It is a new technology that achieves high precision, high acce...

Claims

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Application Information

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IPC IPC(8): H02K41/03
Inventor 茅靖峰廖萍马苏扬吴国庆吴爱华倪红军易龙芳华亮曹阳
Owner NANTONG UNIVERSITY
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