کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
699651 | 890784 | 2013 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Nonlinear joint state and parameter estimation: Application to a wastewater treatment plant Nonlinear joint state and parameter estimation: Application to a wastewater treatment plant](/preview/png/699651.png)
• Joint state and parameter estimation for nonlinear time-varying systems.
• A systematic procedure of representation with no loss of information.
• First contribution based on the polytopic approach.
• Application to a wastewater treatment plant.
• Data issued from the European Program Benchmark Cost 624.
A systematic approach to joint state and time-varying parameter estimation for nonlinear systems is proposed in this paper. Applying the sector nonlinearity transformation to both the system nonlinearities and the time-varying parameters, the original system is equivalently rewritten as a Takagi–Sugeno system with unmeasurable premise variables. A joint state and parameter observer whose parameters are designed by solving an LMI optimization problem is then proposed. The target application is a realistic model of an activated sludge wastewater treatment plant, being an uncertain nonlinear system affected by a time-varying parameter.
Journal: Control Engineering Practice - Volume 21, Issue 10, October 2013, Pages 1377–1385