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Feedback Interconnection of Dissipative Systems and Accelerated Learning for Adaptive Control
Feedback Interconnection of Dissipative Systems and Accelerated Learning for Adaptive Control
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105521
- ISBN
- 9798263339708
- DDC
- 330
- 저자명
- Somers, Luke.
- 서명/저자
- Feedback Interconnection of Dissipative Systems and Accelerated Learning for Adaptive Control
- 발행사항
- [Sl] : Georgia Institute of Technology, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 216 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-05, Section: A.
- 주기사항
- Advisor: Haddad, Wassim M.
- 학위논문주기
- Thesis (Ph.D.)--Georgia Institute of Technology, 2024.
- 초록/해제
- 요약In this dissertation, we develop partial stability theorems for nonlinear continuous-time and discrete-time dissipative feedback systems. Specifically, by invoking additional structural constraints on the forward loop and feedback loop system storage functions, we develop feedback interconnection partial stability results for dissipative nonlinear dynamical systems. Our results provide extensions of the positivity and small gain theorems for guaranteeing partial stability of feedback interconnected systems.In addition, we introduce the notion of strongly dissipative dynamical systems. In particular, we construct a stronger version of the dissipation inequality that implies system dissipativity and generalizes the notion of strict dissipativity but unlike strict dissipativity, which for a closed dynamical system implies asymptotic stability, the closed dynamical system possesses the property that system trajectories converge to a Lyapunov stable equilibrium state in finite time. The results are then used to derive Kalman-Yakubovich-Popov conditions for characterizing necessary and sufficient conditions for strong dissipativity in terms of the system functions of the dynamical system using continuously differentiable storage functions and quadratic supply rates. Furthermore, using strong dissipativity concepts we present several stability results for nonlinear feedback systems that guarantee finite time stability. For specific supply rates, these results provide generalizations of the feedback passivity and nonexpansivity theorems that additionally guarantee finite time stability.Next, we develop momentum-based adaptive update laws for parameter identification and control to improve parameter estimation error convergence and control system performance for uncertain dynamical systems. Specifically, we introduce two novel continuoustime, momentum-based adaptive estimation and control algorithms and evaluate their effectiveness via several numerical examples. Our proposed adaptive architectures show faster parameter convergence rates as compared to the classical gradient descent and model reference adaptive control methods.Building on our momentum-based adaptive theme, next we develop an online learning algorithm for solving the Bellman equation for affine in the control discrete-time nonlinear uncertain dynamical systems. To ensure accelerated learning of our algorithm in generating optimal control policies, we use an actor-critic structure predicated on higher-order tuner laws. More specifically, we construct a Nesterov-like architecture involving momentum-based learning laws leading to an accelerated convergence of the optimal control policy. The proposed online learning-based optimal control framework guarantees uniform ultimate boundedness of the closed-loop system under the assumption that the system is persistently excited.Finally, using our strong dissipativity framework we develop adaptive controllers using non-Lipschitzian update laws that guarantee finite time stabilization of uncertain dynamical systems. Specifically, we construct a rescaled-integral gradient algorithm and a momentum-based rescaled integral gradient algorithm and use a composite architecture to develop novel adaptive controllers with finite time stability guarantees.
- 일반주제명
- Aircraft
- 일반주제명
- Control algorithms
- 일반주제명
- Dynamic programming
- 일반주제명
- Parameter identification
- 일반주제명
- Closed loop systems
- 일반주제명
- Controllers
- 일반주제명
- Robots
- 일반주제명
- Eigenvalues
- 일반주제명
- Energy
- 일반주제명
- Systems stability
- 일반주제명
- Dynamical systems
- 일반주제명
- Visualization
- 일반주제명
- Distance learning
- 일반주제명
- Parameter estimation
- 일반주제명
- Computer science
- 일반주제명
- Educational technology
- 일반주제명
- Mathematics
- 일반주제명
- Robotics
- 기본자료저록
- Dissertations Abstracts International. 87-05A.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008260126s2024 us c eng d■001000017360411
■00520260202105521
■006m o d
■007cr#unu||||||||
■020 ▼a9798263339708
■035 ▼a(MiAaPQ)AAI32309544
■035 ▼a(MiAaPQ)GeorgiaTech76997
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a330
■1001 ▼aSomers, Luke.
■24510▼aFeedback Interconnection of Dissipative Systems and Accelerated Learning for Adaptive Control
■260 ▼a[Sl]▼bGeorgia Institute of Technology▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a216 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-05, Section: A.
■500 ▼aAdvisor: Haddad, Wassim M.
■5021 ▼aThesis (Ph.D.)--Georgia Institute of Technology, 2024.
■520 ▼aIn this dissertation, we develop partial stability theorems for nonlinear continuous-time and discrete-time dissipative feedback systems. Specifically, by invoking additional structural constraints on the forward loop and feedback loop system storage functions, we develop feedback interconnection partial stability results for dissipative nonlinear dynamical systems. Our results provide extensions of the positivity and small gain theorems for guaranteeing partial stability of feedback interconnected systems.In addition, we introduce the notion of strongly dissipative dynamical systems. In particular, we construct a stronger version of the dissipation inequality that implies system dissipativity and generalizes the notion of strict dissipativity but unlike strict dissipativity, which for a closed dynamical system implies asymptotic stability, the closed dynamical system possesses the property that system trajectories converge to a Lyapunov stable equilibrium state in finite time. The results are then used to derive Kalman-Yakubovich-Popov conditions for characterizing necessary and sufficient conditions for strong dissipativity in terms of the system functions of the dynamical system using continuously differentiable storage functions and quadratic supply rates. Furthermore, using strong dissipativity concepts we present several stability results for nonlinear feedback systems that guarantee finite time stability. For specific supply rates, these results provide generalizations of the feedback passivity and nonexpansivity theorems that additionally guarantee finite time stability.Next, we develop momentum-based adaptive update laws for parameter identification and control to improve parameter estimation error convergence and control system performance for uncertain dynamical systems. Specifically, we introduce two novel continuoustime, momentum-based adaptive estimation and control algorithms and evaluate their effectiveness via several numerical examples. Our proposed adaptive architectures show faster parameter convergence rates as compared to the classical gradient descent and model reference adaptive control methods.Building on our momentum-based adaptive theme, next we develop an online learning algorithm for solving the Bellman equation for affine in the control discrete-time nonlinear uncertain dynamical systems. To ensure accelerated learning of our algorithm in generating optimal control policies, we use an actor-critic structure predicated on higher-order tuner laws. More specifically, we construct a Nesterov-like architecture involving momentum-based learning laws leading to an accelerated convergence of the optimal control policy. The proposed online learning-based optimal control framework guarantees uniform ultimate boundedness of the closed-loop system under the assumption that the system is persistently excited.Finally, using our strong dissipativity framework we develop adaptive controllers using non-Lipschitzian update laws that guarantee finite time stabilization of uncertain dynamical systems. Specifically, we construct a rescaled-integral gradient algorithm and a momentum-based rescaled integral gradient algorithm and use a composite architecture to develop novel adaptive controllers with finite time stability guarantees.
■590 ▼aSchool code: 0078.
■650 4▼aAircraft
■650 4▼aControl algorithms
■650 4▼aDynamic programming
■650 4▼aParameter identification
■650 4▼aClosed loop systems
■650 4▼aControllers
■650 4▼aRobots
■650 4▼aEigenvalues
■650 4▼aEnergy
■650 4▼aSystems stability
■650 4▼aDynamical systems
■650 4▼aVisualization
■650 4▼aDistance learning
■650 4▼aParameter estimation
■650 4▼aComputer science
■650 4▼aEducational technology
■650 4▼aMathematics
■650 4▼aRobotics
■690 ▼a0791
■690 ▼a0800
■690 ▼a0984
■690 ▼a0710
■690 ▼a0405
■690 ▼a0771
■71020▼aGeorgia Institute of Technology.
■7730 ▼tDissertations Abstracts International▼g87-05A.
■790 ▼a0078
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360411▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


