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| LiyingSUN,JunZHAO |
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| (Key Laboratory of Integrated Automation of Process Industry, Ministry of Education, and School of Information Science and Engineering, Northeastern University, Shenyang Liaoning 110004, China) |
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| Received:March 12, 2009Revised:October 08, 2009 |
| 基金项目:This work was supported by the National Natural Science Foundation of China (No.60874024, 90816028), and the Specialized Research Fund for the Doctoral Program of Higher Education of China (No.200801450019). |
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| A novel adaptive backstepping design of turbine main steam valve control |
| Liying SUN,Jun ZHAO |
| (Key Laboratory of Integrated Automation of Process Industry, Ministry of Education, and School of Information Science and Engineering, Northeastern University, Shenyang Liaoning 110004, China) |
| Abstract: |
| The problem of transient stability for a single machine infinite bus system with turbine main steam valve control is addressed by means of a novel adaptive backstepping method in this paper. The recursive design procedure of the proposed controller is much simpler than that of the existing controller based on conventional adaptive backstepping method. In the system, the damping coefficient is measured inaccurately, and the reactance of transmission line also contains a few uncertainties. A nonlinear robust controller and parameter updating laws are obtained simultaneously. The system does not need to be linearized, and the closed-loop error system is guaranteed to be asymptotically stable. The design procedure and simulation results demonstrate the effectiveness of the proposed design. |
| Key words: Novel adaptive backstepping Nonlinear control Parameter uncertainty Steam valve control |
