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

A servo control device

A technology of a servo control device and a controlled object, applied in the field of servo control, can solve the problems of complex parameter setting and high-frequency vibration of speed, and achieve the effects of reducing low-frequency oscillation, improving adaptability and increasing damping.

Active Publication Date: 2020-11-17
NANJING ESTUN AUTOMATION CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its parameter setting is more complicated
In addition, if the actual load inertia J is small (close to the minimum value Jm), the phase lead of the rotational speed ωp will be much larger than the phase lag of the equivalent low-pass filter Lo, which will easily cause high-frequency vibration of the speed

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
  • A servo control device
  • A servo control device
  • A servo control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0048] refer to Figure 5 , a servo control device for performing closed-loop speed control on a controlled object based on a torque command, said servo control device comprising: a first subtractor 3, a speed regulator 4, a second subtractor 7, and a third subtractor 8. Filter 10 , first integrator 5 and disturbance observer 9 . The disturbance observer 9 includes: a fourth subtractor 91 , a third regulator 92 , a first adder 93 and a third integrator 94 .

[0049] In this embodiment, the speed regulator 4 is a PI regulator, and the filter 10 is a low-pass filter, and the transfer functions are respectively:

[0050]

[0051] Among them, KP is the proportional coefficient, KI is the integral coefficient, and Tf is the filter time constant.

[0052] In this embodiment, the third regulator 92 of the disturbance observer is a PI regulator, and the third integrator 94 establishes an integral model with the total inertia of the ideal model as a parameter, and the per unit val...

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 servo control device. A filter and a disturbance observer are added on the basis of an existing typical servo control device. The disturbance observer is capable of observingdisturbances, including varying load torque disturbances and varying load inertia disturbances, in a system, and compensating for the disturbances; output of a speed regulator is used for subtractingthe observation speed of the disturbance observer to be multiplied by KD so as to adjust damping of a speed ring; and a filter is used for filtering a given torque to filter out noises in the given torque. The servo control device is simple in structure and convenient in parameter setting; load torque and inertia do not need to be accurately identified; and varying load inertia and load torque can be rapidly adapted.

Description

technical field [0001] The invention relates to servo control technology, in particular to a servo control device. Background technique [0002] Nowadays, AC servo systems based on vector control technology and digital control technology are widely used in industrial automation, CNC machine tools, industrial robots and other occasions. The AC servo system consists of a servo controller and a servo motor. The servo controller includes an embedded microprocessor, which receives commands from the host computer, manages and controls the electric energy, and the output electric energy is used to drive the servo motor; the servo motor is used as an actuator to drive the load equipment to achieve tracking, positioning and other functions. [0003] Due to the various forms of use, AC servo systems generally support position, speed, and torque control modes. In control, they are realized by nested position loop, speed loop and torque loop respectively. These control loops need to ...

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 Patents(China)
IPC IPC(8): H02P21/00H02P21/13
CPCH02P21/0003H02P21/13
Inventor 范仁凯齐丹丹杨凯峰姚瑱钱巍
Owner NANJING ESTUN AUTOMATION CO LTD
PatSnap Eureka logo

PatSnap Eureka turns technology decisions into work you can execute. Powered by our Innovation Knowledge Graph, it runs expert workflows across engineering, life sciences, materials and intellectual property. Get your review-ready output in minutes.

X (Twitter)LinkedInYouTubeSubstack

© 2026 PatSnap. All rights reserved. 

Terms of Service

 | 

Privacy policy

 | 

Modern Slavery Act Transparency Statement