Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Permanent magnet synchronous motor power line wiring phase sequence detection method and detection system

A permanent magnet synchronous motor, phase sequence detection technology, applied in electrical winding test, phase sequence/synchronization indication, measurement of electricity and other directions, can solve the problem of inability to detect motor phase sequence, to improve safety and efficiency, high detection efficiency , the effect of simple process

Active Publication Date: 2018-10-23
ZHENGZHOU YUTONG BUS CO LTD
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for detecting the phase sequence of the power line connection of a permanent magnet synchronous motor to solve the problem that the existing detection method cannot detect the phase sequence of the motor in a static state

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
  • Permanent magnet synchronous motor power line wiring phase sequence detection method and detection system
  • Permanent magnet synchronous motor power line wiring phase sequence detection method and detection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Embodiment of the method for detecting the phase sequence of the power line of the permanent magnet synchronous motor

[0027] The phase sequence detection method of the permanent magnet synchronous motor power line wiring provided by the present invention mainly includes two steps, the first step is a data detection step, which is used to detect various parameter data required; the second step is a phase sequence detection step , used to judge the wiring phase sequence.

[0028] For the first step, there are three detected data: the position of the motor rotor, and the relative position between the motor rotor and the motor power line connected to any two phases of the controller power line. These three parameters are detected when the motor is at rest.

[0029] Among them, the rotor position of the motor is denoted as θ R . In this embodiment, the position of the rotor of the motor is detected using a rotary transformer. Of course, as other implementations, the pos...

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 relates to a permanent magnet synchronous motor power line wiring phase sequence detection method and a detection system. The method is characterized by firstly, detecting a motor rotorposition and a relative position between the motor power lines formed through connecting the motor rotor and any two phases of a controller power line; and then, according to actual detected correlation data, using the corresponding relation between the data and a wiring phase sequence to obtain whether a motor power line wiring phase sequence is correct. In the detection method, only a few parameters need to be detected; according to a corresponding relation, phase sequence determination can be performed; the process of the detection method is simple and efficiency is high; and under a motorstatic state, a specific phase sequence error mode can be identified. If a permanent magnet synchronous motor on a vehicle is detected, detection can be performed under the stop state of the vehicle so that the sudden stop or sudden retrograde motion condition of the vehicle during the detection process is not generated, the personal safety of detection personnel and surrounding personnel can notbe harmed, and the safety and the efficiency of motor phase sequence detection are increased.

Description

technical field [0001] The invention relates to a phase sequence detection method and a detection system for a power line connection of a permanent magnet synchronous motor, and belongs to the technical field of phase sequence detection of a permanent magnet synchronous motor. Background technique [0002] New energy buses can effectively reduce carbon emissions. With the advancement of science and technology and the increasing pressure of environmental protection, new energy buses have been widely promoted in China. The motor system is one of the "three electrics" of new energy buses and belongs to the core components of new energy buses. Permanent magnet synchronous motors, such as built-in permanent magnet synchronous motors, the permanent magnets of built-in permanent magnet synchronous motors are located inside the rotor. Lightweight, high efficiency, good torque control performance and other advantages, it is an ideal motor type for new energy buses. Unless otherwise...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/06G01R29/18
CPCG01R29/18G01R31/72
Inventor 纪秉男郑维韩光辉张振宁王志中
Owner ZHENGZHOU YUTONG BUS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com