A Fault-Tolerant Control Technique for Accommodation of Partial Actuator Faults

摘要：

In this paper, a robust adaptive controller for accommodation of partial actuator faults is introduced. The proposed controller is based on the robust adaptive model-reference control scheme with improved dead zone modification. The common problem of steady state error in robust adaptive systems with simple dead zone modification is resolved by tuning a specific parameter inside the dead zone with a different adaptive law. Different types of actuator faults including output offset, loss of efficiency, and output delay are compensated with the proposed method. We behave these faults as uncertainties and disturbances. The proposed technique does not need an extra unit for fault detection and diagnosis. Comparative simulation studies are performed to illustrate the effectiveness of the proposed control technique versus the robust adaptive controller with simple dead zone modification.

关键词： Fault-tolerant control Robust adaptive control Dead zone Uncertainty

作者: Behnam Allahverdi Charandabi Ali Khaki Sedigh Farzad R. Salmasi

作者单位: School of Electrical Engineering, Faculty of Engineering, Tehran University, Tehran, Iran Faculty of Electrical Engineering, Khajeh Nasir Toosi University of Technology, Tehran, Iran

会议类型: 国际会议

会议名称: The 22nd China Control and Decision Conference(2010年中国控制与决策会议)

会议地点: 徐州

会议语种:英文

页码: 3875-3880

在线出版日期: 2010-05-26（万方平台首次上网日期，不代表论文的发表时间）