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

Power balance control method and device for multi-motor cluster system

A cluster system, power balancing technology, applied in the direction of motor generator control, control of electromechanical transmission, electronic commutation motor control, etc., to achieve the effect of improving stability and reliability

Pending Publication Date: 2020-04-10
CHAJNA MAJNING DRAJVS EHND AUTOMEHJSHN KO
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the shortcomings of the prior art, this application proposes a power balance control method and device for multi-motor clusters in a drive system to solve the problem of multi-motor coordination

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
  • Power balance control method and device for multi-motor cluster system
  • Power balance control method and device for multi-motor cluster system
  • Power balance control method and device for multi-motor cluster system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0040] figure 1 It is a schematic diagram of rigidly connected multi-motor cluster system. The multi-motor cluster drive system is composed of load 1, transmission device 2, first motor 3, second motor 4, Nth motor 5, and braking device 6. The first motor, the second motor, the third motor, and the Nth motor drive the load through the transmission device. The speed ratio of the transmission device is adjustable, and the ratio of 1:n can be realized, and n is greater than or equal to 1. During operation, there is a problem of cooperation between the first motor and the Nth motor, that is, the problem of multi-motor power distribution and torque distribution.

[0041] figure 2 It is a schematic diagr...

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 power balance control method and device for a multi-motor cluster system, and the method comprises the steps: numbering N motors, setting the motor with the smallest number in working motors as a main motor, and setting the remaining working motors as slave motors; collecting a speed instruction of a driving system and speed information of the main motor, performing PI controller adjustment, and outputting torque instruction information Te; obtaining a torque distribution scale factor Kn of each motor according to the torque amplitude limiting instruction informationTa of the motor; multiplying the torque command information Te by the torque distribution proportion Kn of each motor to obtain torque given information Td of each motor, and controlling each motor tooutput a corresponding current. According to the invention, the power balance control of the multi-motor cluster system is realized.

Description

technical field [0001] The present application relates to the technical field of motor control, in particular to a method and device for controlling the power balance of a multi-motor cluster in a drive system. Background technique [0002] With the development of industrial technology, in order to improve production efficiency, the efficiency of industrial production process is improved by increasing the power of electromechanical equipment. To increase the power of large-scale electromechanical equipment, it is necessary to provide greater driving force. Usually, a high-power motor is used. Due to the power limit of a single motor, industrial occasions often use a mode in which multiple motors work together to provide driving force, such as belt conveyors, Mine hoist, drilling winch, etc. [0003] In the prior art, taking a coal mine belt conveyor as an example, the power distribution between multiple motors depends on the soft connection of the belt, and the power balanc...

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): H02P21/00H02P5/50
CPCH02P21/0003H02P5/50
Inventor 谭国俊杨波耿程飞吴翔叶宗彬盛朗马亮张经纬张玉成
Owner CHAJNA MAJNING DRAJVS EHND AUTOMEHJSHN KO