Novel two-section type seven-phase permanent magnet fault-tolerant motor

A permanent magnet fault-tolerant, motor technology, applied in the direction of electrical components, electromechanical devices, etc., can solve problems such as poor fault isolation capability, affecting system fault tolerance, system redundancy mutual interference, etc., to reduce torque ripple, improve fault tolerance, The effect of good physical isolation

Active Publication Date: 2014-05-14
北京北航天宇长鹰无人机科技有限公司
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of the above-mentioned traditional redundant degree permanent magnet synchronous motors that cause mutual interference between system redundancy, poor fault isolatio

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Novel two-section type seven-phase permanent magnet fault-tolerant motor
  • Novel two-section type seven-phase permanent magnet fault-tolerant motor
  • Novel two-section type seven-phase permanent magnet fault-tolerant motor

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] The present invention will be further described in detail below in conjunction with the drawings and embodiments.

[0023] Such as figure 1 As shown, the novel two-stage seven-phase permanent magnet fault-tolerant motor provided by the present invention adopts a coaxial two-stage structure, including: two stator components, two rotor components, bearing 5, rotating shaft 6, and lining in series. Cover 7, insulating sleeve 8, magnetic isolation plate 9, end cover 10 and casing 11. The stator assembly includes a stator core 1 and a stator winding 2. The rotor assembly includes a permanent magnet 3 and a rotor core 4 in the form of Halbach structure.

[0024] Two stator components and two rotor components are coaxially installed in a co-shell, where the first stator component and the first rotor component constitute a three-phase permanent magnet fault-tolerant motor section, and the second stator component and the second rotor component constitute four Phase permanent magnet...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a novel two-section type seven-phase permanent magnet fault-tolerant motor and belongs to the technical field of permanent-magnet synchronous motors. The motor comprises a motor shell, two rotor assemblies, two stator assemblies, a rotary shaft, a bearing, a bush, an insulating sleeve, a magnet isolating board and an end cover. The two stator assemblies and the two rotor assemblies are coaxially installed on the same shell. The two stator assemblies are a three-phase winding and a four-phase winding respectively and connected with the rotary shaft through the rotor assemblies respectively, so that a three-phase permanent magnet fault-tolerant motor section and a four-phase permanent magnet fault-tolerant motor section are formed. The magnet isolating board is installed between the two motor sections. Phase windings of the stator assemblies are in a concentrated single-layer winding mode and are embedded separately through teeth. Power is supplied to each phase winding through an independent H-bridge driving mode. The novel two-section type seven-phase permanent magnet fault-tolerant motor is good in physical isolation capacity, magnetic field isolation capacity, thermal field isolation capacity and electric isolation capacity and can effectively restrain short circuit currents of the permanent magnet motor, greatly improve the reliability of the permanent magnet motor and satisfy the requirements for primary fault work, secondary fault work and third fault safety.

Description

technical field [0001] The invention belongs to the technical field of permanent magnet synchronous motors, in particular to a highly reliable permanent magnet synchronous motor based on non-similar redundancy and fault tolerance technology. Background technique [0002] With the introduction of the Power-By-Wire (PBW) concept, and the development of high energy product permanent magnet materials and high-power drive devices, electric actuators directly driven by permanent magnet motors are characterized by their light weight and high efficiency. It is widely used in aerospace, electric vehicles, medical equipment, industrial automation and other high-reliability servo actuation fields due to its advantages of high performance, good maintainability, and low life-cycle cost. [0003] As the development direction of high reliability servo actuation system in the future, higher reliability and fault tolerance have become the technical characteristics that new electric actuators...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H02K16/00
Inventor 郭宏徐金全邢伟
Owner 北京北航天宇长鹰无人机科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap