Switching control system and method for permanent-magnet synchronous motor winding

A permanent magnet synchronous and control system technology, which is applied in AC motor control, control system, single motor speed/torque control, etc. question

Inactive Publication Date: 2015-09-23
SHANGHAI DIANJI UNIV
View PDF9 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When the connection mode of the winding remains unchanged, it is difficult for the permanent magnet synchronous motor t

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
  • Switching control system and method for permanent-magnet synchronous motor winding
  • Switching control system and method for permanent-magnet synchronous motor winding
  • Switching control system and method for permanent-magnet synchronous motor winding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] A detailed description will be given below of embodiments of the present invention. Although the present invention will be described and illustrated in conjunction with some specific embodiments, it should be noted that the present invention is not limited to these embodiments. On the contrary, any modification or equivalent replacement made to the present invention shall be included in the scope of the claims of the present invention.

[0020] In addition, in order to better illustrate the present invention, numerous specific details are given in the specific embodiments below. It will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known structures, components and devices are not described in detail so as not to obscure the gist of the present invention.

[0021] figure 1 Shown is a schematic diagram of a permanent magnet synchronous motor winding switching control system...

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 switching control system and method for a permanent-magnet synchronous motor winding. The switching control system at least comprises a three-phase winding and a three-way switch, wherein six wiring terminals of the three-phase winding are respectively connected with an external circuit, the connection mode of the three-phase winding is determined by controlling the state of the three-way switch, the three-way switch can be selectively switched between a first state and a second state, when the three-way switch is at the first state, the three-phase winding is connected in a Y manner, and when the three-way switch is at the second state, the three-phase winding is connected in a Delta manner. By adopting the switching control system and method for the permanent-magnet synchronous motor winding, provided by the invention, the requirements of high torque at a low speed and a wide speed adjustment range of a servo system can be simultaneously met.

Description

technical field [0001] The invention relates to the field of motor control, in particular to a switching control system and method for permanent magnet synchronous motor windings. Background technique [0002] As we all know, the three-phase windings of the three-phase AC motor adopt Y connection or Δ connection. Generally speaking, motors with a capacity above 4Kw use Δ connection, and motors below 4Kw use Y connection. In order to limit the large current during starting, the asynchronous motor with large capacity adopts Y connection in the initial starting stage, and switches to Δ connection after the motor speed reaches a certain value. The pole-changing speed regulation of some asynchronous motors also adopts the switching control of the Y / Δ connection of the winding. Therefore, Y / Δ switching control has been successfully applied to the field of starting and pole-changing speed regulation of asynchronous motors. [0003] Permanent magnet synchronous motors have the ad...

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): H02P6/08H02P25/18
Inventor 王爱元
Owner SHANGHAI DIANJI UNIV
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