Optimal Fixed-Time Sliding Mode Control for Spacecraft Constrained Reorientation
Bin Li, Tao Guan, Xiaoyi Guan, Kai Zhang, Ka Fai Cedric Yiu
Abstract
A sliding mode controller is proposed for the attitude control of spacecraft reorientation with attitude constraints. By introducing a potential function, a novel sliding function is designed. With the structure of the proposed sliding function, uniqueness of the equilibrium and fixed-time convergence are rigorously proven. Another advantage of the proposed controller is that the feasibility of attitude constraints can be proven not only on the sliding surface but also outside it. Moreover, the singularity issue of the proposed controller is resolved. Effectiveness of the proposed method is demonstrated by carrying out two numerical simulation.
Topics & Concepts
Control theory (sociology)Sliding mode controlUniquenessSpacecraftConvergence (economics)Controller (irrigation)Mode (computer interface)SingularityVariable structure controlFunction (biology)Computer scienceMathematicsEngineeringControl (management)Nonlinear systemPhysicsArtificial intelligenceGeometryMathematical analysisAerospace engineeringOperating systemAgronomyEconomic growthEvolutionary biologyEconomicsQuantum mechanicsBiologyAdaptive Control of Nonlinear SystemsDynamics and Control of Mechanical SystemsControl and Dynamics of Mobile Robots