کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1714451 1519948 2015 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Satellite cluster flight using on-off cyclic control
ترجمه فارسی عنوان
پرواز ماهواره ای با استفاده از کنترل غیر فعال
کلمات کلیدی
پرواز خوشه ای، کنترل چرخه، خاموش موتور کنترل کننده سوخت تعادل
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
چکیده انگلیسی


• Developed a new satellite cluster orbit control law.
• Introduced concept of cyclic cluster control with fixed-magnitude thrust.
• Showed that cyclic cluster control law works for long time scales.
• Proven stability properties of the closed-loop system.
• Performed a comprehensive simulation study.

Nano-satellite clusters and disaggregated satellites are new concepts in the realm of distributed satellite systems, which require complex cluster management – mainly regulating the maximal and minimal inter-satellite distances on time scales of years – while utilizing simple on-off propulsion systems. The simple actuators and long time scales require judicious astrodynamical modeling coupled with specialized orbit control. This paper offers a satellite cluster orbit control law which works for long time scales in a perturbed environment while utilizing fixed-magnitude thrusters. The main idea is to design a distributed controller which balances the fuel consumption among the satellites, thus mitigating the effect of differential drag perturbations. The underlying methodology utilizes a cyclic control algorithm based on a mean orbital elements feedback. Stability properties of the closed-loop cyclic control system do not adhere to the classical Lyapunov stability theory, so an effort is made to define and implement a suitable stability theory of noncompact equilibria sets. A state selection scheme is proposed for efficiently establishing a low Earth orbit cluster. Several simulations, including a real mission study, and several comparative investigations, are performed to show the strengths of the proposed control law.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Astronautica - Volume 106, January–February 2015, Pages 1–12
نویسندگان
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