Method and system for controlling attitude of space power station on the basis of population distribution status

A technology of attitude control and distribution state, which is applied in the direction of space navigation equipment, space navigation vehicles, and space navigation vehicle guidance devices, etc. It can solve problems such as inability to locate, slow population convergence speed, etc., and achieve reasonable and effective use.

Active Publication Date: 2019-12-13
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology

[0004] The technical problem to be solved by the present invention lies in that, aiming at the defects of the existing technology that the convergence speed of the population slows down in the late stage of evolution, and the optimal solution of the problem can

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  • Method and system for controlling attitude of space power station on the basis of population distribution status
  • Method and system for controlling attitude of space power station on the basis of population distribution status
  • Method and system for controlling attitude of space power station on the basis of population distribution status

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[0043] In order to have a clearer understanding of the technical features, objectives and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0044] Please refer to figure 1 , Which is a flow chart of attitude control of a space power station, the method includes the following steps:

[0045] S1. The PD controller is used to optimize the attitude of the space power station. During the optimization and adjustment, the damping ratio and frequency of the controller are used as the attitude control optimization parameters. After the relevant controller parameters are encoded, the system is obtained Optimize parameter X.

[0046] S2. Obtain the system optimization parameter X according to the code, and set the objective function, where the optimization parameter is set as: In this embodiment, the value range of the parameter is set as: Where ω 0 =7.292e-5, ε represents the dam...

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Abstract

The invention discloses a method and system for controlling an attitude of a space power station on the basis of a population distribution status. The method and system for controlling the attitude ofthe space power station on the basis of the population distribution status adopt a PD controller; by optimizing related parameters of the controller, the attitude control adjustment of the space power station is carried out; in the parameter optimizing process, first, the related controller parameters are used as optimizing parameters of attitude control, and system optimized parameters are obtained after the related controller parameters are encoded; next, according to the system optimized parameters obtained through encoding, setting a target function on the basis of a transient control energy calculation formula, and calculating to obtain multiple target resolutions, wherein one set formed by the multiple target resolutions is used as a population; and on the basis of the population distribution status, evaluating each individual in the population to obtain an optimal system parameter. According to the method and system for controlling the attitude of the space power station on thebasis of the population distribution status, on the basis of a differential evolution algorithm, a strategy based on population distribution status judgement is provided so that the ability of solving the space power station attitude control problem is improved.

Description

technical field [0001] The invention relates to the fields of aerospace and intelligent computing, and more specifically relates to a space power station attitude and a method for continuously optimizing the space power station attitude based on population distribution state. Background technique [0002] The purpose of controlling the attitude of the space power station is to meet the sun / earth pointing requirements during the normal operation of the space power station. Because when the feedback gain is too large, the output torque will be too large, which will cause more severe structural vibration. , therefore, in order to weaken the excitation to the structure as much as possible, the transient control energy needs to be as small as possible. [0003] In the prior art, it is a typical single-objective numerical optimization problem to make the transient control energy as small as possible by optimizing the parameters involved in the attitude control process. Differenti...

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Application Information

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IPC IPC(8): B64G1/24
CPCB64G1/24B64G1/245
Inventor 彭雷戴光明王茂才陈晓宇张燕云余倩倩
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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