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

Motor control method and system for determining load operation state

A technology of load operation and motor control, applied in the direction of control system, motor control, vector control system, etc., can solve the problems of not being able to return load information, not being able to determine the reliability of the transmission structure, and not being able to determine whether the connection between the motor and the load is valid, etc., to achieve The effect of improving reliability

Active Publication Date: 2018-11-13
GREE ELECTRIC APPLIANCES INC
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem in the prior art that the motor only returns its own speed information during the operation of the whole machine, but cannot return the load information, so that it is impossible to determine whether the connection between the motor and the load is valid, and thus the reliability of the transmission structure cannot be determined. The present invention provides A motor control method and system that can return load information during the operation of the complete machine, determine the reliability of the transmission structure, identify and locate possible unreliable connections in the motor system, and improve the operational reliability of the complete machine system to realize the judgment of the load operating 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
  • Motor control method and system for determining load operation state
  • Motor control method and system for determining load operation state
  • Motor control method and system for determining load operation state

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] This embodiment provides a motor control method for realizing the judgment of the load running state. A load state feedback pulse reflecting the load running state is added to the motor feedback signal fed back from the motor to the main controller, and the load state feedback pulse is encoded and then fed back to Upper master controller.

[0034] Wherein, the load operating state can be divided into multiple states according to the detection results and actual needs. In this embodiment, the load operating state is divided into the following three situations:

[0035] In the light-load state, the motor operating parameter value under the motor load condition is less than or equal to the first set motor operating parameter value, that is, P 运行 ≤P 设定1 ;

[0036] In the heavy load state, the motor operating parameter value under the condition of motor load is greater than or equal to the second set motor operating parameter value, that is, P 运行 ≥P 设定2 ;

[0037] Semi-...

Embodiment 2

[0049] This embodiment provides a motor control system that realizes the judgment of the load running state, such as figure 1 shown, including:

[0050]The motor unit is equipped with an operating parameter detection module and a drive control and feedback module, and the motor is connected to the load; the drive control and feedback module adds the load to the motor feedback signal according to the load operation state detected by the operation parameter detection module A state feedback pulse is used to encode the load state feedback pulse and then feed it back to the upper main controller unit.

[0051] The main controller unit is used for receiving the motor feedback signal, and outputting the control signal to the motor according to the motor feedback signal.

[0052] The power supply unit is used to supply power to the motor unit and the main controller unit.

[0053] The motor control system in this embodiment can be used in the motor control method in Embodiment 1. ...

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 control method and system for determining a load operation state. A load state feedback pulse reflecting the load operation state is added in a motor feedback signal fed back by a motor to a main controller, the load state feedback pulse is encoded, the load operation state is distinguished by virtue of different codes, so that the load state feedback pulse feeds back the load operation state to the superior main controller in an encoding form. A load determination process is added for the motor with an inner drive to acquire and determine the load information,so that a key position of a motor transmission system can be identified and determined in real time; the motor can feed back the load information to the superior main controller by virtue of a specialencoding way to realize the information stream exchanging; and an application environment requiring the disassembling of the load and the reliability reduction problem of the transmission system caused by long-term use can be detected in real time, and the operation reliability of the system can be improved.

Description

technical field [0001] The invention relates to a motor control method and system, in particular to a motor control method and system capable of realizing load operation state judgment, and belongs to the technical field of motor control. Background technique [0002] The motor is the core component of energy exchange. With the continuous expansion of applications and the continuous improvement of the reliability of the whole system, the application environment where the motor and the load need to be disassembled and the reliability of the whole system will decrease with long-term use. , The motor transmission system puts forward higher requirements for early judgment, identification and positioning of faults. As a transmission actuator, the motor needs to be more intelligent in the future. [0003] For the application environment where the motor and the load need to be disassembled, the motor only returns its own speed information during the operation of the whole machine, ...

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): H02P21/14H02P23/14H02P29/40
CPCH02P21/14H02P23/14H02P29/40
Inventor 王敏孔进亮张志祺吕文林
Owner GREE ELECTRIC APPLIANCES INC