Global asymptotic stable coordinated control with objective holographic feedbacks for the turbo-generator set

作者：Liu, Hui^*; Wang, Ni; Wei, Hua; Li, Xiao-Cong

来源：Proceedings of the CSEE, 2009, 29(31): 21-26.

• Co-ordinated control
• Energy attenuation
• Global asymptotic stability
• Lyapunov energy functions
• Lyapunov stable theory
• Multi-objective control
• Power system
• Reheat-type turbo-generator set

This paper proposes the global asymptotic stable coordinated control with objective holographic feedbacks to deal with the multi-objective control for the reheat-type turbo-generator set. Lyapunov energy function is used to construct the nonlinear coordinated law rendering the closed-loop system with global asymptotic stability. By the pole arrangement, the total derivative of Lyapunov energy function may be negative definite for any real number except for the equilibrium points. Therefore, the global asymptotic stability of the developed method is achieved. Due to the energy attenuation of Lyapunov function, tracking errors of all control objective variables are eliminated by the feedback coefficients. Meanwhile, it can be seen that nonlinear design is easy even if different control objectives are chosen. Since the nonlinear design process is not seriously affected by the choice of control objectives, the control objectives can be flexibly and completely chosen for the proposal. Simulation results demonstrate the effectiveness of the presented scheme.

• 出版日期2009-11-5
• 单位广西大学