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- Type of Document: Ph.D. Dissertation
- Language: Farsi
- Document No: 56888 (06)
- University: Sharif University of Technology
- Department: Chemical and Petroleum Engineering
- Advisor(s): Shahrokhi, Mohammad
- Abstract:
- Switched systems as a subset of hybrid systems have both discrete and continuous behaviors and have attracted a lot of attention during the past decades. A set of subsystems or modes whose sequence is specified by a switching rule makes the switched system. Another category of systems is the fractional order system in which the order of derivatives is not limited to integers. This feature has provided a significant capacity for this type of system. On the other hand, every real system faces a set of limitations that neglecting them may reduce the quality of control or even lead to system instability. The purpose of this research is to model and control the switched system, whose subsystems are fractional order systems subject to a set of limitations. In this regard, in the first control scheme, the controller is designed for the fractional order switched system subject to output constraint, input nonlinearity, unknown system dynamics and unmeasured state variables. Along with the stability proof of the controller, its performance has been investigated through a simulation study. In the second control scheme, the first scheme has been extended to multi-input, multi-output systems using the framework of multi-agent systems. The network communication limitation motivates the use of the event-triggered control strategy. The simulation results indicate the satisfactory performances of both controllers
- Keywords:
- Multiagent System ; Adaptive Control ; Observer ; Input Nonlinearity ; Event-Triggered Control ; Fractional Order Switched Systems ; Constrained Output
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