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

Method for obtaining robustness controller for piezoelectric steering engine

A robust controller and steering gear technology, applied in general control systems, adaptive control, control/regulation systems, etc., can solve problems such as low control accuracy and poor stability, and achieve high control accuracy, good stability, and tracking. good performance

Inactive Publication Date: 2018-06-01
BEIHANG UNIV
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of poor stability and low control accuracy of the piezoelectric steering gear controller in the above-mentioned prior art, a method for obtaining a robust controller for the piezoelectric steering gear is provided, comprising the steps:

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
  • Method for obtaining robustness controller for piezoelectric steering engine
  • Method for obtaining robustness controller for piezoelectric steering engine
  • Method for obtaining robustness controller for piezoelectric steering engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0038] The invention designs the control system of the piezoelectric steering gear, determines the robust controller of the control system, and obtains the parameters of the overall control system.

[0039] The so-called robust control is to design a controller so that when the system has a certain degree of parameter uncertainty and a certain limit of unmodeled dynamics, the closed-loop system can still maintain stability and maintain a certain dynamic performance quality control. A major defect in the classical feedback control theory based on the transfer f...

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 present invention relates to a method for obtaining a robustness controller for a piezoelectric steering engine. The method comprises the following steps of: constructing an Hammerstein dynamic retardation model according to a piezoelectric steering engine model; connecting in series with an inverse compensator in the Hammerstein dynamic retardation model, adding a feedforward correction link,and performing control feedback, and forming a control system model; and designing a robustness controller according to the model indeterminacy, disturbance and noise. The method for obtaining robustness controller for the piezoelectric steering engine is simple in solution process, good in stability of the obtained robustness controller, good in tracking performance and high in control precision.

Description

technical field [0001] The invention relates to the field of piezoelectric steering gear control, in particular to a method for obtaining a robust controller for piezoelectric steering gear. Background technique [0002] Since the 1980s, with the development of smart materials and smart structures, the research on smart materials and structures has gradually formed a cross-related research field of materials, machinery and control. Smart materials and structures have the characteristics of high precision, small size, high reliability and low power consumption, and are widely used in ultra-precise positioning, precise adjustment of aircraft wings, laser micromachining, and active vibration control of micro-vibration structures. The solution to the micro-displacement positioning and vibration control problems in the fields of medical care, energy, transportation, construction, and aerospace has opened up a new research field, and it is one of the key research fields in my count...

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): G05B13/04
CPCG05B13/042
Inventor 张臻辛峰周克敏
Owner BEIHANG UNIV