电力系统混沌振荡的分数阶自适应滑模控制  

Fractional Order Adaptive Sliding Mode Control for Chaotic Oscillations in Power Systems

作　　者：孙政章 Sun Zhengzhang(School of Electrical Engineering,Northeast Electric Power University,Jilin Jilin 132012,China)

机构地区：[1]东北电力大学电气工程学院,吉林吉林132012

出　　处：《电气自动化》2024年第5期50-52,共3页Electrical Automation

摘　　要：在受系统内部参数变动和外部扰动时,电力系统可能出现混沌振荡现象。对三母线电力系统进行混沌特性分析并设计一种分数阶自适应滑模控制方法;利用分数阶算子特性设计分数阶渐近律抑制控制输入的高频抖振现象;针对系统中的不确定参数设计自适应控制律进行估计;利用Lyapunov理论证明了所设计控制器作用下的稳定性。仿真结果表明,所提方法能够抑制系统中出现的混沌振荡,减轻输入信号的抖振现象,对系统的不确定参数具有较好的适应能力。When subjected to internal parameter changes and external disturbances,the power system may exhibit chaotic oscillation phenomena.The chaotic characteristics of a three-bus power system was analyzed and a fractional order adaptive sliding mode control method was designed.The characteristics of the fractional order operator were utilized to design a fractional order asymptotic law to suppress high-frequency oscillations in the control input.An adaptive control law was designed for estimation of uncertain parameters in the system.The stability of the designed controller was demonstrated using Lyapunov theory.The simulation results show that the proposed method can suppress chaotic oscillations in the system,alleviate the chattering phenomenon of the input signal,and has good adaptability to the uncertain parameters of the system.

关 键 词：分数阶微积分 自适应 混沌振荡 分数阶滑模控制 三母线电力系统 

分 类 号：TM712[电气工程—电力系统及自动化]