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Optimal pid control method for two-dimensional wing flutter system with dual control surfaces

A control method and dual control technology, applied in control/regulation systems, mechanical oscillation control, non-electric variable control, etc., can solve the problem of falling into local optimal values, disorderly optimization, and difficulty in obtaining the best flutter suppression effect, etc. problem, to achieve the effect of speeding up the convergence speed, avoiding disorderly search, and efficiently optimizing PID control

Active Publication Date: 2020-12-04
YANGZHOU UNIV
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Problems solved by technology

However, the effect of the particle swarm optimization algorithm varies with different optimization application problems. The previous methods are not designed for the complex optimization problem of dual control surface two-dimensional wing flutter suppression in the present invention, so it is easy to lead to disordered optimization and fall into local optimum. figure of merit, making it difficult to obtain optimal flutter suppression

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  • Optimal pid control method for two-dimensional wing flutter system with dual control surfaces
  • Optimal pid control method for two-dimensional wing flutter system with dual control surfaces
  • Optimal pid control method for two-dimensional wing flutter system with dual control surfaces

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Embodiment

[0080] In order to fully understand the characteristics of the present invention and its ability to solve the problem of high-efficiency optimization of dual-loop PID control parameters for the dual-control surface two-dimensional wing flutter system, the present invention is now used to implement the following specific dual-control surface two-dimensional wing flutter system optimal PID control.

[0081] The model parameters of the two-dimensional wing flutter system with dual control surfaces are shown in Table 1.

[0082] Table 1

[0083]

[0084] For the two-dimensional wing flutter system with dual control surfaces, the block diagram of the dual-loop PID control is as follows: figure 1 As shown, two control channels are designed, and a PID controller is designed for each control channel according to the output feedback error. The six control parameters of the two PID controllers are optimized and calculated through an optimization algorithm. In this example, setting...

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Abstract

The invention discloses an optimal PID control method for a two-dimensional wing flutter system with two control surfaces. Firstly, a nonlinear dynamic model of the two-dimensional wing flutter system with two control surfaces is established; according to the nonlinear dynamic model, based on Design a dual-loop PID controller with dual control surfaces; design a new compound gray particle swarm optimization (GNPSO) algorithm by improving the gray particle swarm algorithm combined with the NLJ algorithm, and optimize the parameters of the dual-loop PID controller to obtain the final PID controller . The present invention can realize the efficient optimized PID control of the two-dimensional airfoil flutter system with double control surfaces, and the optimized controller of the present invention can more effectively control the multi-control surfaces of the wing, obtain better flutter suppression effect and shorten the optimization calculation time.

Description

technical field [0001] The control technology of the two-dimensional wing flutter system of the present invention is specifically an optimal PID control method of the two-dimensional wing flutter system with two control surfaces. Background technique [0002] Wing flutter refers to the multi-degree-of-freedom vibration of the wing under the coupling of aerodynamic force, elastic force and inertial force. Wing flutter will produce a limit cycle oscillation when it reaches the flutter speed, which seriously endangers the structural safety of the wing and threatens the safe flight of the aircraft. There are many methods of flutter active suppression, including PID control, linear quadratic control, adaptive control and sliding mode control, etc. Among them, the PID controller has the most practical application due to its simple structure, strong applicability and high robustness. Value of the flutter suppression method. [0003] The dual control surface two-dimensional wing r...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D19/02
CPCG05D19/02
Inventor 李迺璐杨华朱卫军陈东阳
Owner YANGZHOU UNIV
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