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Aero-engine distributed control law design and verification method considering time delay

An aero-engine and distributed control technology, which is applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve problems such as high real-time requirements, meet the requirements of multi-variable control, simple design method, and parameter modification convenient effect

Active Publication Date: 2020-07-14
DALIAN UNIV OF TECH
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Problems solved by technology

[0007] At the same time, most of the existing aero-engine modeling and simulation work is carried out on the MATLAB / Simulink platform, but for the distributed control system, only using MATLAB for simulation has certain limitations, because the distributed Real-time requirements are high, and real-time network support is needed to simulate the topology, intelligent nodes and network communication conditions in the actual system

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  • Aero-engine distributed control law design and verification method considering time delay
  • Aero-engine distributed control law design and verification method considering time delay
  • Aero-engine distributed control law design and verification method considering time delay

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Embodiment Construction

[0056] The present invention will be further described below in conjunction with the accompanying drawings.

[0057] A control law design and verification method for an aero-engine distributed control system considering time delay, comprising the following steps:

[0058] S1. Discrete augmented modeling of the state space model of the aero-engine distributed system with time delay, making it a standard discrete model without time delay in form;

[0059] S2. Design an ALQR controller for the augmented aero-engine distributed system model to control the network delay in the distributed system;

[0060] S3. Build an aero-engine distributed control system simulation platform in the Truetime toolbox, and simulate and verify the designed ALQR controller;

[0061] Among them, the steps of discrete augmented modeling for the state space model of the aero-engine distributed system are as follows:

[0062] S1 first considers a certain type of turbofan engine and determines its small d...

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Abstract

The invention belongs to the field of aero-engine control algorithm design, and provides an aero-engine distributed control law design and verification method considering time delay, and the method comprises the following steps: discretization augmentation modeling is performed on a state space model of an aero-engine distributed system with time delay; an ALQR controller is designed, and controlover network time delay in the distributed system is achieved; and an aero-engine distributed control system simulation platform is built in a Truetime tool box, and simulation verification is carriedout on the designed ALQR controller. According to the method, the network time delay in the distributed system can be controlled, and the influence of the time delay on the performance of the engineis reduced; in addition, the control law design method for the distributed system with the time delay has certain universality and can be popularized to other types of distributed time delay problems;meanwhile, parameters of the Truetime simulation platform provided by the invention are convenient to modify, and simulation verification can be carried out on other distributed control systems.

Description

technical field [0001] The invention provides a control law design and verification method of an aero-engine distributed control system considering time delay, and belongs to the field of aero-engine control algorithm design. Background technique [0002] The background of the present invention is the design and verification of the control law for time delay of a distributed control system of a certain type of turbofan engine. [0003] Aero-engine is the heart of the aircraft, and its performance is directly related to the flight safety of the aircraft. With the improvement of people's requirements for aero-engine control, the complexity of its control system design is also increasing, and the traditional centralized control architecture has been difficult to meet the complex control requirements. In order to further improve engine performance, reduce overall engine weight, increase system versatility, and reduce system development and maintenance costs, the current aero-en...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 杜宪王欣悦孙希明马艳华
Owner DALIAN UNIV OF TECH
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