Fixed-Time Stability of the Hydraulic Turbine Governing System
| Autor: | Jin Xie, Xuezi Zhang, Wenbei Wu, Yongzheng Sun, Chuangzhen Liu, Caoyuan Ma |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Water hammer
Article Subject Settling time Water turbine lcsh:Mathematics 020209 energy General Mathematics Control (management) General Engineering 02 engineering and technology lcsh:QA1-939 Stability (probability) Rate of convergence lcsh:TA1-2040 Fixed time Control theory 0202 electrical engineering electronic engineering information engineering lcsh:Engineering (General). Civil engineering (General) Hydraulic turbines Mathematics |
| Zdroj: | Mathematical Problems in Engineering, Vol 2018 (2018) |
| ISSN: | 1563-5147 1024-123X |
| DOI: | 10.1155/2018/1352725 |
| Popis: | This paper studies the problem of fixed-time stability of hydraulic turbine governing system with the elastic water hammer nonlinear model. To control and improve the quality of hydraulic turbine governing system, a new fixed-time control strategy is proposed, which can stabilize the water turbine governing system within a fixed time. Compared with the finite-time control strategy where the convergence rate depends on the initial state, the settling time of the fixed-time control scheme can be adjusted to the required value regardless of the initial conditions. Finally, we numerically show that the fixed-time control is more effective than and superior to the finite-time control. |
| Databáze: | OpenAIRE |
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