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Optimal Control of State-Dependent Switched Systems
Optimal Control of State-Dependent Switched Systems
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105328
- ISBN
- 9798263328795
- DDC
- 620
- 저자명
- Zhou, Mi.
- 서명/저자
- Optimal Control of State-Dependent Switched Systems
- 발행사항
- [Sl] : Georgia Institute of Technology, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 129 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
- 주기사항
- Advisor: Abdallah, Chaouki;Verriest, Erik.
- 학위논문주기
- Thesis (Ph.D.)--Georgia Institute of Technology, 2025.
- 초록/해제
- 요약This thesis addresses the optimal control of state-dependent switched systems-a class of hybrid dynamical systems characterized by state-triggered transitions across known interfaces. Such systems arise in applications ranging from robotics and chemical process control to electronic circuits, yet the classical Pontryagin Minimum Principle applies only to continuously differentiable dynamics. Moreover, existing numerical toolboxes often lack both ease of use and rigorous error guarantees. To overcome these challenges, this thesis develops new theoretical foundations and efficient computational algorithms.In the first part of the thesis, we propose a generalized Euler-Lagrange Equation (GEL) which clarifies a quantitative property of the co-state's behavior for systems with a timeinvariant switching interface. We derive the optimal control for state-dependent switched systems using the calculus of variations technique. We further extend the theory to systems with time-varying switching interfaces and constant time delays in states. We illustrate our theoretical results through representative simulation examples.In the second part of the thesis, we develop and analyze numerical methods for the optimal control of state-dependent switched systems. First, we propose a model-based gradient descent method grounded in our hybrid optimality conditions and generalized Euler-Lagrange equation. To address its reliance on known switching sequences and its limited scalability, we then propose a model-free approximation method that uses basis functions to approximate the control input and gradient descent to update the parameters of the control approximation. A precise error bound of this approximation is derived under some assumptions. Simulation results are provided to show the power of this model-free method. We next extend this model-free algorithm to systems with fixed terminal states using the augmented Lagrangian method and dual decomposition. We illustrate our approach on a range of examples, including systems with differentiable dynamics, systems with state-dependent switches, systems with time delays, and systems with both switches and time delays. In addition, we offer a user-friendly MATLAB toolbox that implements this model-free method.In the third part of the thesis, we investigate reinforcement learning techniques for hybrid systems. We demonstrate that applying the deterministic policy gradient directly to state-dependent switched systems results in high variance and instability. To remedy this, we propose a piecewise reinforcement learning scheme, analogous to a piecewise control approximation, which achieves lower variance and improved suboptimal control performance.
- 일반주제명
- Robots
- 일반주제명
- Dynamic programming
- 일반주제명
- Dynamical systems
- 일반주제명
- Robotics
- 일반주제명
- Industrial engineering
- 일반주제명
- Mathematics
- 기본자료저록
- Dissertations Abstracts International. 87-05B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■006m o d
■007cr#unu||||||||
■020 ▼a9798263328795
■035 ▼a(MiAaPQ)AAI32307924
■035 ▼a(MiAaPQ)GeorgiaTech78692
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a620
■1001 ▼aZhou, Mi.
■24510▼aOptimal Control of State-Dependent Switched Systems
■260 ▼a[Sl]▼bGeorgia Institute of Technology▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a129 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-05, Section: B.
■500 ▼aAdvisor: Abdallah, Chaouki;Verriest, Erik.
■5021 ▼aThesis (Ph.D.)--Georgia Institute of Technology, 2025.
■520 ▼aThis thesis addresses the optimal control of state-dependent switched systems-a class of hybrid dynamical systems characterized by state-triggered transitions across known interfaces. Such systems arise in applications ranging from robotics and chemical process control to electronic circuits, yet the classical Pontryagin Minimum Principle applies only to continuously differentiable dynamics. Moreover, existing numerical toolboxes often lack both ease of use and rigorous error guarantees. To overcome these challenges, this thesis develops new theoretical foundations and efficient computational algorithms.In the first part of the thesis, we propose a generalized Euler-Lagrange Equation (GEL) which clarifies a quantitative property of the co-state's behavior for systems with a timeinvariant switching interface. We derive the optimal control for state-dependent switched systems using the calculus of variations technique. We further extend the theory to systems with time-varying switching interfaces and constant time delays in states. We illustrate our theoretical results through representative simulation examples.In the second part of the thesis, we develop and analyze numerical methods for the optimal control of state-dependent switched systems. First, we propose a model-based gradient descent method grounded in our hybrid optimality conditions and generalized Euler-Lagrange equation. To address its reliance on known switching sequences and its limited scalability, we then propose a model-free approximation method that uses basis functions to approximate the control input and gradient descent to update the parameters of the control approximation. A precise error bound of this approximation is derived under some assumptions. Simulation results are provided to show the power of this model-free method. We next extend this model-free algorithm to systems with fixed terminal states using the augmented Lagrangian method and dual decomposition. We illustrate our approach on a range of examples, including systems with differentiable dynamics, systems with state-dependent switches, systems with time delays, and systems with both switches and time delays. In addition, we offer a user-friendly MATLAB toolbox that implements this model-free method.In the third part of the thesis, we investigate reinforcement learning techniques for hybrid systems. We demonstrate that applying the deterministic policy gradient directly to state-dependent switched systems results in high variance and instability. To remedy this, we propose a piecewise reinforcement learning scheme, analogous to a piecewise control approximation, which achieves lower variance and improved suboptimal control performance.
■590 ▼aSchool code: 0078.
■650 4▼aRobots
■650 4▼aDynamic programming
■650 4▼aDynamical systems
■650 4▼aOrdinary differential equations
■650 4▼aRobotics
■650 4▼aIndustrial engineering
■650 4▼aMathematics
■690 ▼a0771
■690 ▼a0546
■690 ▼a0405
■71020▼aGeorgia Institute of Technology.
■7730 ▼tDissertations Abstracts International▼g87-05B.
■790 ▼a0078
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360255▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


