A method and system for collaborative planning of target attitude for multi-level composite control of spacecraft

A target attitude and compound control technology, which is applied in attitude control, space navigation equipment, space navigation aircraft, etc., can solve the periodic error fluctuation of load attitude control, obvious non-smooth characteristics of load target attitude and target angular velocity, and unfavorable load. Ultra-high stability control and other problems, to achieve the effect of simple planning method, satisfying computing power, and high-precision tracking
CN108762285BActive Publication Date: 2021-08-10BEIJING INST OF CONTROL ENG
9 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF CONTROL ENG
Publication Date
2021-08-10

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A target attitude collaborative planning method and system for multi-level composite control of a spacecraft. The designed multi-level composite control system for a spacecraft includes a first-level control system for a star and a second-level control system for a load. The payload and the star are required to track the same target attitude during the large-angle agile maneuvering of the spacecraft. Due to the different control periods of stars, it is necessary to use the interpolation method to calculate the load control period Δt under the condition that the target attitude of the star platform is known. 2 target pose in time. First, the next control cycle Δt is calculated by the star attitude planning algorithm 1 The target pose θ within br . Then, load at a known Δt 1 The target pose θ in time br , using the Newton interpolation method to calculate each Δt 2 The target attitude θ of the load in time pr . In the case that the target attitude of the star and the payload at each time point is known, the spacecraft multi-level composite control system uses the star and payload two-stage PID controllers for attitude control to achieve high stability control of the spacecraft optical load.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of spacecraft attitude control, and relates to a target attitude collaborative planning method and system for realizing multi-level composite control of spacecraft. Background technique

[0002] Spacecraft missions such as space-based astronomical observation and extremely high-resolution earth observation have put forward the "three super" control requirements such as ultra-high-precision pointing, ultra-high stability control, and ultra-agile control of optical loads. Traditional spacecraft are limited by factors such as sensor measurement bandwidth and actuator response bandwidth, and it is difficult to meet the "three super" control requirements of optical loads. To solve this problem, a spacecraft multi-level compound control system based on active pointing ultra-quiet platform came into being. In the multi-level composite control system of the spacecraft, the star and the load are connected through a flexible a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More