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

On-line rotational inertia identification device for alternate current permanent magnet servo system and identification method

A moment of inertia and servo system technology, applied in the direction of controlling electromechanical transmission devices, control systems, vector control systems, etc., can solve problems such as adjusting system control parameters

Inactive Publication Date: 2012-02-15
HARBIN INST OF TECH
View PDF7 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the existing identification of the moment of inertia of the motor is to identify the moment of inertia of the load mechanical system in an offline state, and the problem that the system control parameters cannot be adjusted in real time according to the current situation of the system, the present invention provides an online moment of inertia of the AC permanent magnet servo system Identification device and identification method

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
  • On-line rotational inertia identification device for alternate current permanent magnet servo system and identification method
  • On-line rotational inertia identification device for alternate current permanent magnet servo system and identification method
  • On-line rotational inertia identification device for alternate current permanent magnet servo system and identification method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0055] Specific implementation mode one: the following combination figure 1 and figure 2 Describe this embodiment, the online moment of inertia identification device of the AC permanent magnet servo system described in this embodiment, it includes a position controller 1, a speed controller 2, a torque controller 3, a motor and a load unit 4, and a photoelectric encoder 5 , it also includes a differential unit 6, a sinusoidal signal generator 7 and a moment of inertia identification unit 8,

[0056] The sine wave signal output by the sine signal generator 7 is superimposed with the given position signal of the motor to generate a control signal and input it to the control signal input terminal of the position controller 1, and the position control signal output terminal of the position controller 1 is connected to the speed of the speed controller 2 The control signal input terminal, the torque control signal output terminal of the speed controller 2 is connected to the torq...

specific Embodiment approach 2

[0070] Embodiment 2: This embodiment is a further description of Embodiment 1. The moment of inertia identification unit 8 in this embodiment includes a filter.

specific Embodiment approach 3

[0071] Embodiment 3: This embodiment is a further description of Embodiment 2, and the filter described in this embodiment is a double-T network notch filter.

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 an on-line rotational inertia identification device for an alternate current permanent magnet servo system and an identification method, belongs to the technical field of servo motor control, and solves the problem that the conventional identification of rotational inertia of all motors is identification of rotational inertia of load mechanical systems in an off state so as not to adjust system control parameters according to current conditions of a system in real time. The device consists of a position controller, a speed controller, a torque controller, a motor and load unit, a photoelectric encoder, a differential unit, a sinusoidal signal generator and a rotational inertia identification unit; and the method comprises the following steps of: injecting a harmonic command with a lower amplitude value to a given position of a position loop motor during production run of a motor system; and extracting a motor position angle and torque control signal of a corresponding frequency component to realize on-line identification of the rotational inertia. The device and the method are suitable for on-line rotational inertia identification of the alternate current permanent magnet servo system.

Description

technical field [0001] The invention relates to an online moment of inertia identification device and identification method of an AC permanent magnet servo system, belonging to the technical field of servo motor control. Background technique [0002] In recent years, more and more AC permanent magnet servo systems are used in the field of small and medium power servos that require high precision and high performance. Due to its small inertia and high control precision, the change of the moment of inertia of the load mechanism affects the performance of the servo system to a large extent. When the electrical and mechanical parameters of the servo system do not match in actual application, it is necessary to adjust the parameters of the controller according to the actual operating conditions to meet the requirements of the production application for the performance of the servo system. This kind of parameter adjustment often requires technical personnel with certain professio...

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): H02P23/14H02P21/14
Inventor 杨明牛里徐殿国
Owner HARBIN INST OF TECH
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