همزمان سازی کلاس خاصی از سیستم‌های آشوبی هم‌ترازمبتنی بر روش کنترل کننده مودلغزشی
محورهای موضوعی : مهندسی برق ( الکترونیک، مخابرات، قدرت، کنترل)
امیرحسین رستم پور
1
,
Assef Zare
2
,
نرگس شفاعی
3
1 -
2 - Department of Electrical Engineering, Gonabad Branch, Islamic Azad University, Gonabad, Iran
3 - دانشگاه آزاد اسلامی
کلید واژه: سیستم‌های آشوبی همتراز, همزمان سازی زمان , کنترل مد لغزشی, کنترل تطبیقی, عدم قطعیت, تاخیر زمانی نامشخص,
چکیده مقاله :
در این مقاله يك مكانيزم كنترلي تطبيقي به منظور همزمان سازی یک کلاس خاص از سیستم‌های آشوبی همتراز داراي تاخيرهاي نامشخص، اغتشاش و عدم قطعیت ارائهشدهاست. تاخیر‌ها و پارامتر‌ها برای دو سیستم آشوبی همتراز پایه وپیرو، مجهول و متفاوت است. سیستمهاي آشوبی همتراز ، با استفاده از نمای لیاپانوف مثبت و جاذبهاي کران دار معرفی شده است. در مكانيزم كنترلي پيشنهادي، برای همزمان سازی از دو كنترل كننده خطی و مود لغزشی تطبيقي استفاده شده است. در رهيافت كنترلي پيشنهادي، با استفاده از شرايط لیپشیتز در سيستمهاي آشوبي، قوانین بروز رسانی پارامتر‌هاي نامعين ارائهشده و با استفاده از تئوري لياپانوف، پايداري سيستم كنترلي پيشنهادي در همزمان سازي مقاوم سيستم هاي مذكور، اثبات شده است. در نهایت همزمان سازی سیستم آشوبی همتراز پایه و پیرو جرک و جنسیوتسیو دارای عدم قطعیت هاي غیرخطی، اغتشاش‌‌های خارجی و همچنین پارامتر‌ها و تاخیرهای زمانی ثابت و نامشخص، با استفاده از مكانيزم كنترلي پيشنهادي انجام و شبيه سازي شده‌است. بررسی نتایج نشان می‌دهد، كنترل كننده پيشنهادي، در زماني اندك، بر اثرهاي اغتشاش خارجی و عدم قطعیت هاي کراندار موجود در سيستم‌ها، غلبه کرده و تخمین پارامتر‌های سیستم اصلی در فرايند همزمان سازي به خوبی صورت گرفته است . است است است
Synchronization of a Class of Neutral Chaotic Systems based on Adaptive Sliding Mode Control Approach Synchronization of a Class of Neutral Chaotic Systems based on Adaptive Sliding Mode Control Approach Synchronization of a Class of Neutral Chaotic Systems based on Adaptive Sliding Mode Control Approach In this paper, adaptive control mechanism for finite time synchronization of a specific class of neutral chaotic systems is considered equal to unknown Delays disturbance and uncertainty. Delays and parameters are considered and different for two neutral chaotic systems equal to the master and the slave. The neutral chaotic system is introduced using a positive Lyapunov exponent and finite Attractor. in the proposed adaptive control mechanism two linear and adaptive sliding mode controllers have been used for synchronization.in the proposed approach control mechanism,the rules for updating the unknown parameters have been introduced by Lipshitz condition in chaotic system and use of Lyapunov function stability proposed control system in robust synchronization mentioned system have been confirmed. Finally, synchronization is performed between the master and slave neutral chaotic system )Jark and Gensiotsio( with nonlinear uncertainty and external disturbance as well as parameters and unknown time delay. Examination of the simulation results shows that the controller overcame the external disturbance and boundary uncertainty in the shortest time. And The estimation of the parameters of the main system is well done, which indicates the accuracy of the theory analysis.
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