Title
Nonlinear Predictive Control of a Hydropower System Model
Abstract
A six-dimensional nonlinear hydropower system controlled by a nonlinear predictive control method is presented in this paper. In terms of the nonlinear predictive control method; the performance index with terminal penalty function is selected. A simple method to find an appropriate terminal penalty function is introduced and its effectiveness is proved. The input-to-state-stability of the controlled system is proved by using the Lyapunov function. Subsequently a six-dimensional model of the hydropower system is presented in the paper. Different with other hydropower system models; the above model includes the hydro-turbine system; the penstock system; the generator system; and the hydraulic servo system accurately describing the operational process of a hydropower plant. Furthermore, the numerical experiments show that the six-dimensional nonlinear hydropower system controlled by the method is stable. In addition, the numerical experiment also illustrates that the nonlinear predictive control method enjoys great advantages over a traditional control method in nonlinear systems. Finally, a strategy to combine the nonlinear predictive control method with other methods is proposed to further facilitate the application of the nonlinear predictive control method into practice.
Year
DOI
Venue
2015
10.3390/e17096129
ENTROPY
Keywords
Field
DocType
nonlinear predictive control,hydropower system,Lyapunov function,control method,stability
Lyapunov function,Hydropower,Nonlinear system,Control theory,Nonlinear predictive control,Servomechanism,Penstock,System model,Mathematics,Penalty method
Journal
Volume
Issue
ISSN
17
9
1099-4300
Citations 
PageRank 
References 
2
0.38
18
Authors
3
Name
Order
Citations
PageRank
Run-Fan Zhang1392.52
Diyi Chen26610.01
Xiaoyi Ma320439.45