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Method and system for optimal control of aircraft trajectory based on dynamic trigger mechanism

A trigger mechanism and optimal control technology, applied in control/regulation systems, non-electric variable control, three-dimensional position/course control, etc., can solve problems such as aircraft deviation from orbit, achieve high resource utilization, good real-time performance, and reduce wasteful effect

Active Publication Date: 2022-04-12
ANHUI UNIVERSITY
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Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a method based on event triggering and optimal control theory to realize the optimal control of the trajectory of the aircraft, so as to overcome the problem that the control model in the prior art will cause the aircraft to deviate from the track

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  • Method and system for optimal control of aircraft trajectory based on dynamic trigger mechanism
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  • Method and system for optimal control of aircraft trajectory based on dynamic trigger mechanism

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[0082] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0083] Such as figure 1 As shown, the present invention aims to propose a method for closed-loop control of the flight trajectory of the aircraft based on event triggering and optimal control theory. In order to improve the simulation degree of aircraft lateral motion, a new model based on automatic control theory is proposed . The automatic control model achieves the desired trajectory by correcting the error between the current orientation and the target orientation in real time. The core of correcting the orientation is to adjust the roll angle. The roll angle approaches the desired roll angle, so that the orientation also approaches the desired orientation. In this way, even if the trajectory of the aircraft slightl...

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Abstract

The present invention provides an optimal control method for aircraft trajectory based on a dynamic trigger mechanism, comprising: establishing an aircraft trajectory dynamic model, constructing a feedback controller model based on the deviation between the expected state and the actual state; and determining the system state space based on the feedback controller model Model; define the Lyapunov function, solve the parameters of the Lyapunov function based on the optimal control theory of the system state space model; introduce the trigger condition of the feedback controller including internal dynamic variables based on the criterion from input to state stability; when the trigger condition is met, the feedback The controller is triggered to adjust aircraft operating parameters. The advantage of the optimal control method of aircraft trajectory based on the dynamic trigger mechanism provided by the present invention is that the flight trajectory is adjusted based on the deviation between the actual state and the expected state and adding internal dynamic variables, which makes it easier to control and adjust the event trigger strategy of the system, reducing It avoids unnecessary waste of system resources and has better real-time performance.

Description

technical field [0001] The invention relates to the technical field of aircraft trajectory control, in particular to an optimal control method and system for aircraft trajectory based on a dynamic trigger mechanism. Background technique [0002] At present, there are two main methods to study the motion of aircraft, the non-parametric method and the model method. Representative methods of parameter-free methods are based on estimation algorithms such as Kalman filter or neural network. The simplest model method is to split the motion into simple physical motion. This method is easy to implement in engineering, but the degree of simulation is low; BeZie (Bezier curve) and B-spline curve simulation method and Cardinals cubic spline The curve algorithm is more accurate but the algorithm itself is more complicated. In this paper, a motion simulation model based on the principle of automatic control is proposed, which is easy to apply and has a high degree of simulation. The ma...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D1/10
CPCG05D1/101
Inventor 李腾刘硕林刘剑飞张晶晶
Owner ANHUI UNIVERSITY
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