Research on inertial reference units prescribed performance integral sliding mode angle control. Issue 10 (15th May 2023)

• Record Type: Journal Article
• Authors: Zhao, Ling; He, Minghui; Cao, Xinyue
• Is Part Of: Advances in space research. Volume 71:Issue 10(2023)
• Page Start: 4210
• Page End: 4221
• Publication Date: 2023-05-15
• Subjects: Inertial reference unit (IRU) -- Transient performance -- High-precision -- Tracking differentiator (TD) -- Prescribed performance error transformation -- Integral sliding mode control (ISMC); Space sciences -- Periodicals; Astronautics -- Periodicals; Geophysics -- Periodicals; 500.505
• DOI: 10.1016/j.asr.2023.01.003
• Languages: English
• ISSNs: 0273-1177

Abstract

Abstract: In this paper, a prescribed performance integral sliding mode control (ISMC) algorithm is proposed to realize high precision and rapid response for an inertial reference unit (IRU). To ensure rapid response, a tracking differentiator (TD) is introduced to arrange a transition process for a desired signal. Tracking error is limited within two prescribed performance function (PPF) bounds to improve transient performance of the IRU. By a prescribed performance error transformation, an error transformation system is established to transform the original constrained system into an equivalent unconstrained one for the IRU. A prescribed performance integral sliding mode controller is designed for the error transformation system to ensure stead-state accuracy. Stability of the prescribed performance ISMC algorithm is proved by a Lyapunov method. Comparative experiments are given to verify effectiveness and robustness of the prescribed performance ISMC algorithm for the IRU.