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

An Active Control System of Aeroengine Surge Based on Controller Fuzzy Switching

An active control system, aero-engine technology, applied in the direction of machine/engine, pump control, mechanical equipment, etc., can solve the problems of low reliability, insufficient adaptability, small working range, etc., to achieve stable work and expand effective work. range, the effect of improving the success rate

Active Publication Date: 2022-04-12
DALIAN UNIV OF TECH
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of low reliability, insufficient adaptability and small working range in the active control method in the prior art, the present invention provides an aeroengine surge active control system based on controller fuzzy switching

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
  • An Active Control System of Aeroengine Surge Based on Controller Fuzzy Switching
  • An Active Control System of Aeroengine Surge Based on Controller Fuzzy Switching
  • An Active Control System of Aeroengine Surge Based on Controller Fuzzy Switching

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0075] The content of the present invention will be further described below in conjunction with the accompanying drawings and embodiments of the present invention.

[0076] An active control system for aero-engine surge based on controller fuzzy switching. The control system mainly includes three parts: basic controller design module, fuzzy switching module, and control signal fusion module. The design flow chart of the system is as follows: figure 1 shown.

[0077] figure 2 It is a structural schematic diagram of the aero-engine surge active control system based on controller fuzzy switching. It can be seen from the figure that the controller mainly includes three parts: fuzzy switching module, control signal fusion module and basic controller. Among them, the fuzzy switching module also includes three parts: state variable fuzzification, fuzzy rule reasoning, and defuzzification. The fuzzy switching controller generates the controller selection tendency c through the fu...

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

An aero-engine surge active control system based on controller fuzzy switching. The invention is based on the principle of fuzzy switching. According to the working state of the compressor, the most suitable basic controller for the current state is selected for switching control, which can realize large-scale, automatic Adaptive, performance-optimized surge active control. The controller designed in the present invention realizes active control of large-scale surge through fuzzy switching, expands the effective working range of the controller, and improves the reliability of the controller; The active control of surge improves the adaptability of the controller and is closer to the actual working conditions of the engine; adding certain optimization indicators in the design process of the controller can realize the optimal control under the corresponding optimization target; The required control effect can be achieved by making minor changes on the basis of the controller. Compared with the existing intelligent control method, the present invention is simpler and easier to implement.

Description

technical field [0001] The invention belongs to the field of aero-engine modeling and control, and relates to an aero-engine surge active control system based on controller fuzzy switching. Background technique [0002] At present, high-performance aeroengines are developing towards high thrust-to-weight ratio, high speed, high reliability, etc., which also put forward higher requirements for the aerodynamic stability of the compressor. The increase in the thrust-to-weight ratio of high-performance engines leads to an increase in the single-stage pressure ratio of the compressor, and the load on the compressor is getting higher and higher, which makes the aerodynamic stability of the aero-engine more prominent and becomes one of the important factors limiting the development of the engine. In the traditional compressor surge control method, the core idea is to ensure sufficient surge margin at the operating point when designing the operating point of the compressor. In this...

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): F04D27/02F02C9/16
CPCF04D27/02F02C9/16
Inventor 孙希明全福祥孙翀贻马艳华
Owner DALIAN UNIV 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