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Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

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Related citation:Dawei Ding,Fangfang Liu,Nian Wang,Dong Liang.Stabilization of Uncertain Fractional Memristor Chaotic Time-DelaySystem Based on Fractional Order Sliding Mode Control[J].Journal of Harbin Institute Of Technology(New Series),2020,27(4):74-83.DOI:10.11916/j.issn.1005-9113.18081.
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Stabilization of Uncertain Fractional Memristor Chaotic Time-DelaySystem Based on Fractional Order Sliding Mode Control
Author NameAffiliation
Dawei Ding School of Electronics and Information Engineering, Anhui University, Hefei 230601, China
Key Laboratory of Intelligent Computing and Signal Processing, Ministry of Education, Hefei 230601, China 
Fangfang Liu School of Electronics and Information Engineering, Anhui University, Hefei 230601, China 
Nian Wang School of Electronics and Information Engineering, Anhui University, Hefei 230601, China
Key Laboratory of Intelligent Computing and Signal Processing, Ministry of Education, Hefei 230601, China 
Dong Liang School of Electronics and Information Engineering, Anhui University, Hefei 230601, China
Key Laboratory of Intelligent Computing and Signal Processing, Ministry of Education, Hefei 230601, China 
Abstract:
Based on Lyapunov theorem and sliding mode control scheme, the chaos control of fractional memristor chaotic time-delay system was studied. In order to stabilize the system, a fractional sliding mode control method for fractional time-delay system was proposed. In addition, Lyapunov stability theorem was used to analyze the control scheme theoretically, which guaranteed the stability of commensurate and non-commensurate order systems with or without uncertainties and disturbances. Furthermore, to illustrate the feasibility of controller, the conditions for designing the controller parameters were derived. Finally, the simulation results presented the effectiveness of the designed strategy.
Key words:  fractional order system  time-delay  chaos control  uncertainty  sliding mode control
DOI:10.11916/j.issn.1005-9113.18081
Clc Number:N93
Fund:
Descriptions in Chinese:
  

基于分数阶滑模控制的不确定分数阶时滞忆阻混沌系统的稳定

丁大为,刘芳芳,王年,梁栋

(1.安徽大学,电子信息工程学院,合肥 230601;

2.安徽大学,教育部智能计算与信号处理重点实验室,合肥 230601)

创新点说明:

1)设计一种基于分数阶忆阻器的混沌系统的分数滑模控制策略,该系统具有时滞,使系统状态渐近稳定。2)所提出的控制器使用Lyapunov稳定性定理,该定理保证了同阶和不同阶系统的稳定性,分别讨论了该系统在加干扰和不加干扰四种情况下的稳定情况。 3)为有效地说明所提出的控制方案的有效性,引用了两个反例。

研究目的:

为控制基于分数阶忆阻器的时滞系统的混沌现象,设计一种结合滑模控制技术和分数阶微积分理论的分数阶滑模控制器。

研究方法:

1)利用Lyapunov稳定性理论对控制方案进行理论分析,确保存在或不存在不确定性和干扰的情况下同阶和不同阶系统的稳定性。

2)给出四个例子来证明所提出的控制方法的正确性和有效性。

3)数值模拟基于改进的Adams-Bashforth-Moulton预估算法。

研究结果:

1)同阶系统加上设计的分数阶滑模控制方法后可以达到稳定。

2)非同阶系统加上设计的分数阶滑模控制方法后可以达到稳定。

3)具有不确定性和扰动的同阶系统加上设计的分数阶滑模控制方法后可以达到稳定。

4) 具有不确定性和扰动的非同阶系统加上设计的分数阶滑模控制方法后可达到稳定。

结论:

1)滑模控制具有抗干扰的能力。

2)在Lyapunov稳定性定理的基础上,控制律可以使分数阶时滞忆阻器混沌系统渐近稳定,从理论上证明了设计的控制方案是可行的。

3)该方法也适用于在不确定性和干扰的情况下同阶和非同阶系统。

4)仿真结果表明了提出的滑模控制方法的正确性和有效性。

5)数值仿真说明该控制方法可以使分数阶时滞忆阻器系统在有限时间内达到稳定状态。6)引用两个反例验证了所提出的控制方案的有效性。

关键词:分数阶系统;时滞;混沌控制;不确定性;滑模控制

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