Payload-oriented control scheme for rotating payload satellite considering inertia uncertainties and measurement errors  

作　　者：Yatao ZHAO Cheng WEI Chengfei YUE Xibin CAO 

机构地区：[1]School of Astronautics,Harbin Institute of Technology,Harbin 150001,China

出　　处：《Chinese Journal of Aeronautics》2023年第10期335-352,共18页中国航空学报（英文版）

基　　金：the Open Fund of Heilongjiang Postdoctoral Fund,China(No.LBH-Z21141).

摘　　要：For the remote sensing satellite with an unbalanced rotating payload suspended by an Active Magnetic Bearing(AMB),this paper proposes a payload-oriented control scheme where the high-precision payload attitude control is dominating.Firstly,to suppress the disturbances induced by payload inertia uncertainties and state measurement errors,an integrated framework of parameter identification and nonlinear predictive filtering is proposed to estimate payload inertia parameters and system states from multi-timescale,noise-and drift-contaminated measurement data,breaking the mutual constraint between identification and filter.Secondly,based on the estimation results,the control law and bearing electromagnetic force allocation strategy of the payloadoriented scheme are provided,so that the payload tracks the desired motion and the satellite platform follows payload to prevent the air gap of AMB from exceeding the safety threshold.Finally,the simulations are carried out to verify the advantages of the proposed control scheme in enhancing the payload control precision and isolating the platform vibration.

关 键 词：Attitude control Identification Payload-oriented scheme SATELLITES State estimation 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]