TY - JOUR
T1 - Nonlinear State Observer and Control Design for Triangular Tethered Satellite Formation
AU - Su, Bowen
AU - Zhang, Fan
AU - Huang, Panfeng
N1 - Publisher Copyright:
© 1965-2011 IEEE.
PY - 2022/10/1
Y1 - 2022/10/1
N2 - This article researches the control of triangular tethered satellite formation (TTSF) system and nonlinear state observer (NSO) design when velocity vector is unmeasured. First, the stability around the equilibrium of open-loop system is discussed, which is stable around certain equilibrium pairs. To improve the system performance, linear feedback control is designed using Jacobian matrix of original nonlinear system, which is locally stable around linearized point. Besides, nonlinear control is designed subsequently which owns global stability domain. Then in case of the unmeasured velocity states, NSO is designed which contains a nonlinear function of estimation error to regulate the observation bias. With the designed nonlinear control and NSO, the simulation of the deployment of TTSF is made thereafter. Compared with linear feedback control and general observer with linear regulation, the proposed nonlinear control together with NSO has global stability domain and less chattering, which is promising in practical application.
AB - This article researches the control of triangular tethered satellite formation (TTSF) system and nonlinear state observer (NSO) design when velocity vector is unmeasured. First, the stability around the equilibrium of open-loop system is discussed, which is stable around certain equilibrium pairs. To improve the system performance, linear feedback control is designed using Jacobian matrix of original nonlinear system, which is locally stable around linearized point. Besides, nonlinear control is designed subsequently which owns global stability domain. Then in case of the unmeasured velocity states, NSO is designed which contains a nonlinear function of estimation error to regulate the observation bias. With the designed nonlinear control and NSO, the simulation of the deployment of TTSF is made thereafter. Compared with linear feedback control and general observer with linear regulation, the proposed nonlinear control together with NSO has global stability domain and less chattering, which is promising in practical application.
KW - Nonlinear control
KW - nonlinear state observer (NSO)
KW - stability
KW - triangular tethered satellite formation (TTSF)
UR - http://www.scopus.com/inward/record.url?scp=85128688216&partnerID=8YFLogxK
U2 - 10.1109/TAES.2022.3167997
DO - 10.1109/TAES.2022.3167997
M3 - 文章
AN - SCOPUS:85128688216
SN - 0018-9251
VL - 58
SP - 4718
EP - 4728
JO - IEEE Transactions on Aerospace and Electronic Systems
JF - IEEE Transactions on Aerospace and Electronic Systems
IS - 5
ER -