Abstract | ||
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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 |
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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 |
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Run-Fan Zhang | 1 | 39 | 2.52 |
Diyi Chen | 2 | 66 | 10.01 |
Xiaoyi Ma | 3 | 204 | 39.45 |