A robust fuzzy control design of yeast cultures in continuous bioreactors

研究成果: Conference contribution

摘要

In general, precise control of bioreactors is difficult due to the nonlinear behavior and the variations of parameters, which are always inevitable in the system. Earlier conventional techniques such as PID control, optimal control and so on, worked well for fungi that are with higher tolerance for the variations of the culture environment. However, these techniques are no longer effective in the face of cultivating new generation targets that is sensitive to the variations of the culture environment as mammalian cell, etc. Based on the reason depicted in the above, advanced control theories are highly desirable to apply to this bioreactor design problem that is under the effects of modeling uncertainties to improve its performance. One powerful control law that is combined with feedback linearization, adaptive fuzzy and optimal H control will be developed in this research for the above problem. It is well known the feedback linearization is a powerful technique and been widely applied to treat the tracking problem. These include the control of helicopters, high performance aircraft, industrial robots, and biomedical devices. However, all nonlinear control approaches require accurate knowledge of system dynamics. In practical situation, system dynamics are not always exactly known. Therefore, one method that can approach the unknown systems needed be used. It is famous that unknown systems can be approximated by the fuzzy logic systems that were thought as universal approximator for any nonlinear systems because unknown nonlinear systems can be approximated by fuzzy logic techniques to any desired accuracy. Generally, nonlinear bioreactor systems involve in modeling uncertainties. To handle this kind of system uncertainties, H control techniques have been proposed in recent years. Their applications to aerospace engineering include space station control, missile autopilot design, and spacecraft attitude control. From those applications, results reveal the strong performance robustness properties against system uncertainties and exogenous disturbances. By the combination of feedback linearization, fuzzy logic technique, and H control mentioned in the above, an adaptive fuzzy-based H control law has been successfully developed to treat the robust tracking problem of uncertain bioreactor systems.

原文English
主出版物標題Proceedings of the 2005 Summer Bioengineering Conference, 2005 SBC
頁面1304-1305
頁數2
2005
出版狀態Published - 2005
事件2005 Summer Bioengineering Conference - Vail, CO, United States
持續時間: 2005 六月 222005 六月 26

Other

Other2005 Summer Bioengineering Conference
國家United States
城市Vail, CO
期間05-06-2205-06-26

指紋

Robust control
Fuzzy control
Bioreactors
Yeast
Feedback linearization
Fuzzy logic
Nonlinear systems
Dynamical systems
Aerospace engineering
Industrial robots
Three term control systems
Attitude control
Space stations
Fungi
Control theory
Missiles
Cell culture
Helicopters
Spacecraft
Cells

All Science Journal Classification (ASJC) codes

  • Engineering(all)

引用此文

Chen, Y-Y., Shen, S-C., & Wu, J. F. (2005). A robust fuzzy control design of yeast cultures in continuous bioreactors. 於 Proceedings of the 2005 Summer Bioengineering Conference, 2005 SBC (卷 2005, 頁 1304-1305)
Chen, Yung-Yu ; Shen, Sheng-Chih ; Wu, Jinn Fa. / A robust fuzzy control design of yeast cultures in continuous bioreactors. Proceedings of the 2005 Summer Bioengineering Conference, 2005 SBC. 卷 2005 2005. 頁 1304-1305
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Chen, Y-Y, Shen, S-C & Wu, JF 2005, A robust fuzzy control design of yeast cultures in continuous bioreactors. 於 Proceedings of the 2005 Summer Bioengineering Conference, 2005 SBC. 卷 2005, 頁 1304-1305, 2005 Summer Bioengineering Conference, Vail, CO, United States, 05-06-22.

A robust fuzzy control design of yeast cultures in continuous bioreactors. / Chen, Yung-Yu; Shen, Sheng-Chih; Wu, Jinn Fa.

Proceedings of the 2005 Summer Bioengineering Conference, 2005 SBC. 卷 2005 2005. p. 1304-1305.

研究成果: Conference contribution

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Chen Y-Y, Shen S-C, Wu JF. A robust fuzzy control design of yeast cultures in continuous bioreactors. 於 Proceedings of the 2005 Summer Bioengineering Conference, 2005 SBC. 卷 2005. 2005. p. 1304-1305