摘要
结合反演方法和变结构滑模理论设计了自适应阻尼控制器。按照反演设计方法,逐步构造了李亚普诺夫函数,在构造虚拟控制信号时设计了新的滑模面,并给出阻尼系数的自适应律从而得到最终的控制规律,抑制电力系统中的干扰。两区域四机系统仿真结果表明,该自适应阻尼控制器不仅显著改善了系统的阻尼,并对严重故障下产生的持续振荡具有很好的抑制作用。
A new adaptive damping controller is designed by integrating backstepping method with sliding mode control theory. According to the backstepping approach, Lyapunov function is constructed step by step. Constructing a virtual control signal, the adaptive law of damping coefficient is given, and a new sliding surface is designed. The whole control law is obtained by applying backstepping and sliding variable structure theory and the disturbance is attenuated. Simulation of the two-area four-generator system shows that the system damping is improved significantly, and the sustained oscillation is restrained availably in serious fault by the adaptive damping controller
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2011年第24期96-100,共5页
Power System Protection and Control
关键词
反演
变结构控制
自适应控制
阻尼控制器
电力系统
back-stepping
variable structurecontroh adaptive control
damping controller
power system
