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

Optimization method of current loop regulator for servo system

A technology of servo system and optimization method, which is applied in the direction of control system, vector control system, control electromechanical brake, etc., can solve the problems of affecting control effect and easy introduction, and meet the requirements of disturbance suppression ability, reduce sensitivity and high stability The effect of margin

Active Publication Date: 2019-01-15
DORNA TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that in this type of current regulation, i d i q There is only one feedback. When the current gain is increased (P / I increases), external noise is easily introduced and affects the control effect

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
  • Optimization method of current loop regulator for servo system
  • Optimization method of current loop regulator for servo system
  • Optimization method of current loop regulator for servo system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Below according to the attached Figure 2 to Figure 5 , give a preferred embodiment of the present invention, and give a detailed description, so that the functions and characteristics of the present invention can be better understood.

[0039] see image 3 and Figure 4 , a method for optimizing a servo system current loop regulator according to an embodiment of the present invention, comprising the steps of:

[0040] S1: collecting an output current analog signal of a motor 2 in real time through a Σ-Δ analog-to-digital converter 1 and converting the output current analog signal into a first current digital signal;

[0041] S2: respectively collect the first current digital signal through a first SINC filter 31 and a second SINC filter 32; in this embodiment, the extraction rate of the first SINC filter 31 is lower than that of the second SINC filter 32 Rate. Specifically, the first SINC filter 31 adopts a fast SINC filter with a low decimation rate; the second SI...

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

A method for optimize current loop regulator of servo system includes collect output current analog signal of motor and converting it to first current digital signal by sigma-delta analog-digital converter in real time, converting that output current analog signal to first current digital signal by sigma-delta analog-digital converter in real time, converting the output current analog signal to first current digital signal by sigma-delta analog-digital converter in real time, converting the output current analog signal to first current digital signal by sigma-delta analog-digital converter inreal time. Collecting a first current digital signal through a first SINC filter and a second SINC filter respectively; Filtering to obtain a second current digital signal and a third current digitalsignal; Clark transform and Park transform are carried out in turn. Obtaining a first regulated output signal by a first PI regulator; Obtaining a second regulated output signal by a second PI regulator; A pulse width modulation control current is obtained by space vector pulse width modulation. The pulse width modulation current is used as the input current of the motor. The invention discloses an optimization method of a current loop regulator of a servo system, which can reduce the sensitivity to noise and improve the control precision of a servo motor while ensuring a fast response of thecurrent loop.

Description

technical field [0001] The invention relates to the technical field of motor drive control, in particular to an optimization method for a current loop regulator of a servo system. Background technique [0002] At present, as an indispensable and important part in the field of automation equipment, servo drives have been widely used in many industries. But most of the market share is currently occupied by foreign brands. The lack of performance of domestic servo drives is mainly due to their control algorithms. Among them, the dynamic characteristics of the current loop are particularly critical. If the characteristics of the current loop are poor, the torque response will be slow, which will affect the speed response and position response of the entire servo system. Therefore, the design of the regulator in the current loop of the servo drive is particularly important. [0003] At present, most servo systems adopt full digital control, and the main control process of the ...

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): H02P21/14H02P21/22
CPCH02P21/14H02P21/22
Inventor 易健
Owner DORNA TECH