Actuator fault sliding mode observer design with signal quantization
作者单位：South China Robotics Innovation Research Institute Research Center of Satellite TechnologyHarbin Institute of Technology
会议名称：《第36届中国控制会议》
会议届次：36
主办单位：Dalian University of Technology;Systems Engineering Society of China (SESC);Technical Committee on Control Theory (TCCT), Chinese Association of Automation (CAA)
会议日期：2017年
学科分类：08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 080402[工学-测试计量技术及仪器]
基 金：supported by the National Natural Science Foundation of China(91438202,61473096,61333003) the New Century Excellent Talents Program of the Ministry of Education of the Peoples Republic of China(no.NCET-13-0170) the Open Fund of National Defense Key Discipline Laboratory of Micro-Spacecraft Technology(no.HIT.KLOF.MST.201505)
关 键 词：State estimation Signal quantization Sliding mode observer Actuator fault
摘 要：In this paper,the design problem of sliding mode observer is addressed for a class of linear continuous-time systems with actuator faults and limited data communication.A new descriptor sliding mode observer approach is developed to solve this design issue,where a discontinuous input is constructed to reject actuator *** is proved that the lower bound on the density of the quantizer is 1/3,under which the quantization errors could be compensated completely by the switching term of the *** on the proposed observer method,the system state vector can effectively track the state estimator and quantization errors ***,a practical example is provided to show the effectiveness of the presented observer design method.