考虑约束的发电机励磁和汽门开度backstepping协调控制器设计  

Backstepping Coordinated Controller Design of Generator's Excitation and Steam Valve

作　　者：贾敏[1] 孙丽颖[1] 

机构地区：[1]辽宁工业大学电气工程学院,辽宁锦州121001

出　　处：《辽宁工业大学学报（自然科学版）》2016年第5期291-295,共5页Journal of Liaoning University of Technology(Natural Science Edition)

基　　金：辽宁省高等学校优秀人才支持计划(辽宁省自然科学基金)(2015020076)

摘　　要：针对电力系统的稳定问题,通过采用back-stepping方法设计了考虑发电机转子角速度存在约束时的励磁与汽门开度协调控制器。采用李雅普诺夫函数理论的直接法设计非线性控制器,不但很好地保留了系统原有的非线性特征,而且保证了系统的稳定性控制。最后通过MATLAB软件对系统进行仿真,仿真结果表明,在系统发生故障时,所设计的控制器保证了发电机的转子角速度始终限制在设定的范围内。The generator＇s excitation and steam valve are designed to solve the stability problem of power system by using the back-stepping method. The nonlinear controller is also designed with the direct method of Lyapunov function theory. It not only can keep well the nonlinear characteristics of the original system, but also can ensure the stability of the control system. Finally, the system is simulated by adopting MATLAB, and the simulation result shows that the designed controller guarantees the generator rotor angular velocity which is restricted within the scope when the system failure occurs.

关 键 词：励磁 汽门 back-stepping方法 LYAPUNOV理论 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]