Engine Throttle Factor
Author: Tianjiang Shuo
Website: https://cislunarspace.cn
Definition
A control variable u in [0, 1] for low-thrust engines. u=1 corresponds to full thrust and u=0 to engine-off. In energy-optimal and fuel-optimal control, the throttle factor is determined jointly by co-state variables and homotopy parameters, enabling continuous thrust modulation.
Application Value
在航天器姿态和轨道控制中，该方法用于实现高精度跟踪和稳定保持. 通过设计合适的控制律，可以有效抑制外部扰动的影响，保证航天器在复杂动力学环境中的可靠运行.
Related Concepts
- Hill 模型（Hill Model）
- 惯性坐标系固定编队（Formation Fixed Relative to Inertial Frame）
- 受摄Lambert问题（Perturbational Lambert Problem）
- 探测器定位（Probe Targeting）
References
- Du et al., 2023, Two trajectory configurations for the low-thrust transfer between northern and southern halo orbits