Control allocation based fault-tolerant strategy for a bio-ethanol processor system integrated to a PEM fuel cell
| Autor: | M. Patrone, Lautaro Braccia, Patricio Alfredo Luppi, David Zumoffen |
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| Rok vydání: | 2019 |
| Předmět: |
Scheme (programming language)
0209 industrial biotechnology Computer science Computation Process (computing) Fault tolerance 02 engineering and technology Fault (power engineering) Industrial and Manufacturing Engineering Computer Science Applications Set (abstract data type) 020901 industrial engineering & automation 020401 chemical engineering Control and Systems Engineering Control theory Modeling and Simulation 0204 chemical engineering Actuator computer computer.programming_language |
| Zdroj: | Journal of Process Control. 81:40-53 |
| ISSN: | 0959-1524 |
| DOI: | 10.1016/j.jprocont.2019.05.021 |
| Popis: | This paper presents a control approach to obtain actuator fault tolerance in a bio-ethanol processor system coupled with a proton exchange membrane fuel cell. The proposed strategy is based on the development of two cascaded modules. First, a high-level controller consisting on single-input single-output conventional proportional-integral control loops is designed for computing virtual actions which represent the overall control effort. Second, a control allocation module is proposed for the on-line redistribution of the virtual commands onto the available healthy actuators. This scheme is able to compensate from actuator position/rate saturations, to severe abnormal events such as loss of effectiveness and lock-in-place actuator faults. Some attractive features of the proposal are: (i) the control structure design is exclusively based on a steady-state model of the process, (ii) different actuator faults can be efficiently handled without the need of reconfiguring the high-level controller, (iii) the control and optimization tasks are efficiently integrated demanding a reduced computation time, (iv) the on-line controller re-allocation allows to manage not predefined actuator faults, (v) a considerable set of disturbances can be rejected with remarkable performance. Dynamic simulations performed on a rigorous nonlinear model of the process show the benefits of the proposed strategy for both fault-free as well as different fault situations comprising partial and total actuator faults. |
| Databáze: | OpenAIRE |
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