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Optimization method for under-actuated configuration of reaction wheel

A technology of reaction wheel and optimization method, applied in motor vehicles, space navigation equipment, space navigation aircraft, etc., can solve problems such as deficiencies, and achieve the effects of saving design costs, clear design steps, and clear physical meaning

Active Publication Date: 2020-10-13
BEIJING INST OF CONTROL ENG
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Problems solved by technology

[0003] At present, the research on the configuration optimization of reaction wheels for underactuated conditions is relatively lacking, and mainly focuses on the underactuated control algorithm

Method used

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  • Optimization method for under-actuated configuration of reaction wheel
  • Optimization method for under-actuated configuration of reaction wheel
  • Optimization method for under-actuated configuration of reaction wheel

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Embodiment Construction

[0041] An optimization method for the underactuated configuration of the reaction wheel, by first determining the corresponding driving Euler surface and underactuated Euler axis of the reaction wheel in the spacecraft control system, and simultaneously calculating the four elements of the attitude control error of the spacecraft, and then according to the obtained The data is used to build an optimization model, and the optimization model is used to determine the optimal installation angle of the two reaction wheels, such as figure 1 As shown, the specific steps are as follows:

[0042] The first step is to determine the driving Euler surfaces and underactuated Euler axes of the two reaction wheels according to the spacecraft dynamics equations where the two reaction wheels are installed;

[0043] Assuming that the angular momentum of the spacecraft control system is zero, the dynamic equation of the spacecraft with two reaction wheels installed can be expressed as:

[0044]...

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Abstract

The invention discloses an optimization method for under-actuated configuration of a reaction wheel. The method comprises the steps: determining a driving Euler surface and an under-actuated Euler axis of the two reaction wheels in a control system according to a spacecraft kinetic equation provided with the two reaction wheels; establishing a reaction wheel under-actuated configuration optimization model through four elements of attitude control errors, an under-actuated Euler axis and the driving Euler surface according to task requirements; and determining an optimal installation angle of the reaction wheel by optimizing the model. A process of the method is clear, an autonomous operation capacity of a spacecraft control system can be effectively improved, and design cost of the spacecraft control system is saved.

Description

technical field [0001] The invention relates to an optimization method for reaction wheel underactuation configuration, which belongs to the technical field of aerospace control. Background technique [0002] The reaction wheel is a commonly used actuator in the spacecraft control system, and it is of great engineering significance to study the underactuated configuration optimization of the reaction wheel. On the one hand, optimizing the underactuation configuration of the reaction wheel can effectively improve the autonomous operation capability of the spacecraft, and can still ensure the normal operation of the spacecraft in the event of a failure. On the other hand, it can also effectively save the design of the spacecraft control system. Cost, the underactuation is specially used for control in the design of the spacecraft control system. [0003] At present, the research on the configuration optimization of reaction wheels for underactuated conditions is relatively la...

Claims

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Application Information

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IPC IPC(8): B64G1/28
CPCB64G1/283
Inventor 冯佳佳王佐伟杨扬刘伟杰崔振王春元严嵘
Owner BEIJING INST OF CONTROL ENG
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