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

High precision smooth compensation control method for liquid phase pump

A technology of smooth control and compensation control, applied in pump control, control system, motor control, etc., can solve problems such as increased pulsation rate, decreased accuracy of liquid phase pump, and affected the stability of cylinder block operation.

Active Publication Date: 2019-04-16
BEIJING SATELLITE MFG FACTORY
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is: in view of the current prior art, the liquid phase pump control system will have the characteristics of shaking when the high-acceleration motion state is suddenly converted to the 0-acceleration motion state, which seriously affects the operation stability of the cylinder body, resulting in Due to the shortcomings of liquid phase pumps, the final accuracy is reduced and the pulsation rate is increased, a high-precision smooth compensation control method for liquid phase pumps is proposed

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
  • High precision smooth compensation control method for liquid phase pump
  • High precision smooth compensation control method for liquid phase pump
  • High precision smooth compensation control method for liquid phase pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] A high-precision smooth compensation control method for liquid-phase pumps. Through the smoothing algorithm, the No. 1 pump and the No. 2 pump can instantly and smoothly transition to 0-acceleration motion during high-acceleration motion without jittering; The body speed is compensated in real time, so that the total displacement of the pump body remains unchanged, such as figure 1 As shown, the specific steps are as follows:

[0063] (1) The preset motor starts the working process of the motor of the main cylinder of the liquid phase pump. In a single working cycle, the motor speed of the main cylinder of the liquid phase pump is satisfied from uniform acceleration to uniform speed to uniform deceleration. The speed calculation module obtains the motor of the main cylinder of the liquid phase pump Speed ​​change curve with time, and mark the speed change points inflection point 1, inflection point 2, inflection point 3, inflection point 4;

[0064] Inflection point 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 relates to a high precision smooth compensation control method for a liquid phase pump. A smooth motion algorithm of motor speed tracks is proposed, the smooth motion algorithm can ensure the instantaneous smooth transition from high acceleration motion to zero acceleration motion of the liquid phase pump, the pulsation rate of a liquid phase pump group is reduced, and the flow accuracy of the liquid phase pump is improved at the same time; the speed and displacement of a pump body can be compensated in real time, the total displacement of the pump body is kept unchanged, and theinfluence of characteristics of a motor on the running state of the motor speed is reduced; and the flow accuracy of the liquid phase pump in the prior art is improved, and the pulsation rate of theliquid phase pump group in the prior is reduced.

Description

technical field [0001] The invention relates to a high-precision smooth compensation control method for a liquid phase pump, which belongs to the field of electronic engineering. Background technique [0002] The liquid phase pump is a device that outputs two liquids according to a predetermined flow rate and finally mixes them. It is mainly used in the field of liquid chromatography analysis. The two liquids are mixed according to the specified flow rate and enter the chromatographic analysis column, and finally the chromatogram of the substances contained in the liquid can be formed. The flow accuracy of the two liquids and the smoothness of the output (pulsation rate) directly affect the chromatogram formed by the final chromatographic analysis column. If the flow accuracy is low or the pulsation rate is too large, the final chromatogram will be inaccurate or unable to form a chromatogram. Do a proper analysis. The liquid phase pump includes two pumps, No. 1 pump and No...

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): F04B49/06F04B49/20H02P29/00H02P23/20
CPCF04B49/06F04B49/20H02P23/20H02P29/00
Inventor 谭旭王晓阳殷参魏兴亚曾婷张加波吕晶薇
Owner BEIJING SATELLITE MFG FACTORY
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