Unlock instant, AI-driven research and patent intelligence for your innovation.

Motor driving device and motor

A motor drive circuit and motor drive technology, which are used in the control of electromechanical transmissions, motor generators/starters, control generators, etc., can solve problems such as applications that cannot be applied to low-noise starting

Active Publication Date: 2018-06-15
SILERGY SEMICON TECH (HANGZHOU) CO LTD
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, during the starting process of the motor, the noise generated due to the sudden change of the phase current will be introduced, which cannot be applied to the application requiring low noise starting

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
  • Motor driving device and motor
  • Motor driving device and motor
  • Motor driving device and motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] The present invention is described below based on examples, but the present invention is not limited to these examples. In the following detailed description of the invention, some specific details are set forth in detail. The present invention can be fully understood by those skilled in the art without the description of these detailed parts. In order not to obscure the essence of the present invention, well-known methods, procedures, procedures, components and circuits have not been described in detail.

[0063] Additionally, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

[0064]Meanwhile, it should be understood that in the following description, "circuit" refers to a conductive loop formed by at least one element or sub-circuit through electrical connection or electromagnetic connection. When an element or circuit is said to be "connected to" another elemen...

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 discloses a motor driving device and a motor. The motor driving device is used for driving a motor to start and run. A pulse width modulation signal is generated according to a timing control signal to adjust the phase current of a three-phase inverter so that the phase current of the three-phase inverter changes with the pulse width modulation signal, and the initial position of therotor is determined by detecting the time when the phase current of the three-phase inverter rises from zero to a predetermined first threshold in different voltage vector intervals, thus completingsilent starting of the motor.

Description

technical field [0001] The present invention relates to the field of power electronics technology, in particular to the field of motor technology, and more specifically to a motor drive device and a motor. Background technique [0002] Motors are divided into synchronous motors and brushless DC motors according to the air gap magnetomotive force. Synchronous motors are widely used because of their good torque stability and low noise. [0003] Studies have shown that in the drive control of the motor, the smooth drive torque can improve the torque control of the motor well, and can greatly reduce the starting noise. During the starting process of the motor, it is necessary to obtain the initial position information of the rotor by sampling the phase current of the three-phase inverter of the motor, so as to complete the drive control of the motor. However, the phase current of the three-phase inverter rises to a predetermined threshold with different slopes according to the ...

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): H02P27/08H02P21/22H02P21/32
CPCH02P21/22H02P21/32H02P27/08H02P2203/03H02P1/16H02P27/12
Inventor 黄晓冬沈磊
Owner SILERGY SEMICON TECH (HANGZHOU) CO LTD