To achieve three-axial attitude control in a moderate attitude setting time in a situation where only torque around two axes can be generated.SOLUTION: An attitude control system 500 uses a method of an underactuated driving attitude control law capable of executing three-axial attitude control in a situation where only torque around two axes can be generated. A state quantity vector, a target output vector, and an input vector are associated with one another in a parameter database 109. A first control law calculation part 110 calculates control input approximately from the input vector stored in the parameter database 109. A second control law calculation part 111 calculates the control input by the method of an underactuated driving attitude control law without using the parameter database 109. A control law determination part 108 determines which of the first control law calculation part 110 and the second control law calculation part 111 is to be adopted on the basis of a result of comparison among a present attitude angle and a present attitude angle velocity of a satellite, and a target attitude of the satellite.SELECTED DRAWING: Figure 1
【課題】2軸のまわりのトルクのみ発生可能な状況において、適度な姿勢整定時間で3軸姿勢制御を実現することを目的とする。【解決手段】姿勢制御システム500は、2軸まわりのトルクしか発生しない状況で3軸姿勢制御ができる劣駆動姿勢制御則の手法を用いる。パラメータデータベース109には、状態量ベクトルと目標出力ベクトルと入力ベクトルとが対応付けられている。第1制御則計算部110は、パラメータデータベース109に格納された入力ベクトルから制御入力を近似的に計算する。第2制御則計算部111は、パラメータデータベース109を用いずに、劣駆動姿勢制御則の手法で制御入力を計算する。制御則決定部108は、衛星の現在の姿勢角および姿勢角速度と目標姿勢とを比較した結果に基づいて、第1制御則計算部110と第2制御則計算部111のいずれを採用するか決定する。【選択図】図1
ATTITUDE CONTROL SYSTEM, ATTITUDE CONTROL METHOD, AND ATTITUDE CONTROL PROGRAM
姿勢制御システム、姿勢制御方法、および、姿勢制御プログラム
2023-10-16
Patent
Electronic Resource
Japanese
IPC: | B64G Raumfahrt , COSMONAUTICS |
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