Adaptive sliding mode control for deployment of electro-dynamic tether via limited tension and current

Chen, Shumin; Li, Aijun; Liu, Chenguang

doi:10.1016/j.actaastro.2019.12.025

Cited by 14 publications

(3 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Gilbert's controllability criterion is adopted in this paper, which not only determines the controllability of the system itself but determines what can be controlled and what cannot, the contents are as follows [29]. The criterion which requires the linear transformation y Vy  = to convert the linear system (23)  is a scalar), the controllability criterion requires that none of the components of the column be zero. Besides, Kalman's controllability criterion can also be used to judge the controllability of the system [30].…”

Section: B Controllabilitymentioning

confidence: 99%

“…The study of Zhong shows that the libration dynamics and stability of EDT system is a key issue and regulated electric current in the tether to stable the libration motions [21]. Luo and Chen have developed the libration motions of EDT system by regular the tether current and length during the tether deployment [22], [23]. Li used a high fidelity multiphysics model of the EDT system for libration and transverse motion control of the system [24].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dynamic Analysis and Libration Control of Electrodynamic Tether for Reboost Applications

Tian

2021

IEEE Access

Self Cite

View full text Add to dashboard Cite

Electrodynamic tethers can be employed as an immensely promising propulsion system for boosting the altitude of spacecraft, cite instance space stations, satellites, and the like, which ameliorates the expenditure of fuel and minimizes detrimental spacecraft impacts. This paper analyzes the libration dynamics and stability of reboost spacecraft with insulation electrodynamic tethers. A key aspect of spacecraft reboost with an electrodynamic tether is how to keep the tether aligned with the local vertical and stabilized in the context of external disturbances. It has been shown in the current research that the librational instability results in the tether slackness and swings in long-term motion without effective control. Moreover, electrodynamic force (Ampere force) is regarded as a distributed load acting on the tether causing tether deformations which may be detrimental if severe. Aiming at the problem, an optimal control method and PID are given to stabilize the libration motion by modulating the tether current. The dynamical model of the electrodynamic tether system is established using Lagrange equations of the second kind under considering tether deformation and control laws are proposed based on the model. The effectiveness of libration stability control is validated through numerical results in which a current regulation law with appropriate control parameters is used for the libration motion of electrodynamic tether system.

show abstract

Section: B Controllabilitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamic Analysis and Libration Control of Electrodynamic Tether for Reboost Applications

Tian

2021

IEEE Access

Self Cite

View full text Add to dashboard Cite

show abstract

“…Sliding mode control (SMC) is regarded as one of the widely used methods due to its strong robustness, and has been successfully applied to the deployment of two-body tethered system. An adaptive sliding mode controller was proposed in [22] to deploy an electro-dynamic tether with the consideration of partial unknown parameters. For a more extreme situation, when the nonlinear dynamic model has uncertainty and there exist external disturbances, the terminal sliding mode control (TSMC) approach combined with neural network was employed to deploy a dual-body tethered system [23].…”

Section: Introductionmentioning

confidence: 99%

Deployment of Hub-Spoke Tethered Satellite Formation with Adaptive Sliding Mode Tension Control

Liu

Wang

Kang

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

This paper studies the deployment control of a spinning hub-spoke tethered satellite formation, which is a challenging issue due to the strong nonlinear coupling between the hub and sub-satellites, and the underactuated nature of the system if no thrust is used for control. The mathematical model of the formation system is established based on the assumption of rigid body of the hub, inextensible tether, and lumped masses of the sub-satellites. Two novel formation deployment controllers are proposed based on tension control and hybrid tension-thrust control strategies, where underactuated sliding mode control and nonsingular terminal sliding mode control method are used, respectively. The adaptive control theory is adopted to estimate the unknown upper bound of the gravitational perturbation caused by the rotation of the system around the hub. It can be proven by the Lyapunov theory that the close-loop systems have bounded and asymptotic stability under these two deployment controllers, respectively. Finally, numerical simulations are conducted to validate the effectiveness and robustness of the proposed controllers.

show abstract

Introduction

Sun,

Wu,

et al. 2024

Studies in Systems, Decision and Control

View full text Add to dashboard Cite

Adaptive sliding mode control for deployment of electro-dynamic tether via limited tension and current

Cited by 14 publications

References 24 publications

Dynamic Analysis and Libration Control of Electrodynamic Tether for Reboost Applications

Dynamic Analysis and Libration Control of Electrodynamic Tether for Reboost Applications

Deployment of Hub-Spoke Tethered Satellite Formation with Adaptive Sliding Mode Tension Control

Introduction

Contact Info

Product

Resources

About