Sliding mode fault tolerant control dealing with modeling uncertainties and actuator faults

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• 作者：Tao Wang ^{tao_wan@encs.concordia.ca} ; Wenfang Xie ; ^{wfxie@encs.concordia.ca} ; Youmin Zhang ^{ymzhang@encs.concordia.ca}
• 关键词：Sliding mode control (SMC) ; Fault tolerant control (FTC) ; Partial loss fault ; Modeling uncertainty
• 刊名：ISA Transactions
• 出版年：2012
• 期刊代码：95_00190578
• 类别：et
• 出版时间：May, 2012
• 卷：51
• 期：3
• 页码：386-392
• 文件大小：623 K

摘要

In this paper, two sliding mode control algorithms are developed for nonlinear systems with both modeling uncertainties and actuator faults. The first algorithm is developed under an assumption that the uncertainty bounds are known. Different design parameters are utilized to deal with modeling uncertainties and actuator faults, respectively. The second algorithm is an adaptive version of the first one, which is developed to accommodate uncertainties and faults without utilizing exact bounds information. The stability of the overall control systems is proved by using a Lyapunov function. The effectiveness of the developed algorithms have been verified on a nonlinear longitudinal model of Boeing 747-100/200.