Backstepping-based Nonlinear Adaptive Control for Boiler-turbine Units

摘要：

Adaptive nonlinear backstepping controllers for a typical nonlinear boiler-turbine unit model with several uncertain parameters are presented in this paper. The first step consists in system model processing, which involves adding integral actions to the basic backstepping algorithm to obtain zero static errors. Then, to follow the premise of backstepping, the system is divided into two sub-systems and the controllers are designed separately. During the design process, some virtual variables are introduced to define Control Lyapunov Functions (CLF) based on adaptive backstepping, then the nonlinear control laws of the system and adaptive updating laws of these uncertain parameters are deduced. At last, three simulation tests on a 500 MW boiler- turbine units in different operating conditions are done to prove the dynamic performance, disturbance rejection, and robustness of this system.

关键词： Boiler-turbine Units Coordinated Control Backstepping Nonlinear Adaptive Control

作者: Fang Fang Le Wei

作者单位: School of Control and Computer Engineering, North China Electric Power University, Beijing 102206, C Department of Automation, North China Electric Power University, Baoding 071003, China

会议类型: 国际会议

会议名称: The 22nd China Control and Decision Conference(2010年中国控制与决策会议)

会议地点: 徐州

会议语种:英文

页码: 4139-4143

在线出版日期: 2010-05-26（万方平台首次上网日期，不代表论文的发表时间）