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Stochastic Nonlinear Control for Continuous and Discrete Time Systems: Stability, Dissipativity, and Optimality
Stochastic Nonlinear Control for Continuous and Discrete Time Systems: Stability, Dissipativity, and Optimality
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105514
- ISBN
- 9798263337551
- DDC
- 519.93
- 서명/저자
- Stochastic Nonlinear Control for Continuous and Discrete Time Systems: Stability, Dissipativity, and Optimality
- 발행사항
- [Sl] : Georgia Institute of Technology, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 281 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
- 주기사항
- Advisor: Haddad, Wassim M.
- 학위논문주기
- Thesis (Ph.D.)--Georgia Institute of Technology, 2024.
- 초록/해제
- 요약An airplane flying through turbulence, the spread of infectious diseases throughout the world, and the fluctuations in the stock market are just a few examples of systems where uncertainty plays a critical role. Stochastic dynamical systems theory is used to model this class of phenomena and provides insights into the dynamic behavior of systems subject to randomness. By incorporating stochastic elements into the mathematical models that describe reality, it is possible to better understand the probabilistic nature of these phenomena and make predictions that account for the inherent unpredictability. This approach allows for the development of control strategies to mitigate risks, optimize performance, and improve decision-making in various real-world applications.In this dissertation, we provide a unified framework to address the problems of stability, dissipativity, and optimality for stochastic dynamical systems. The inherent probabilistic nature of the problem requires the development of definitions and results whose complexity exceeds the one of deterministic systems. Here, we consider both continuous-time stochastic dynamical systems modeled by stochastic differential equations driven by Brownian motion, and discrete-time stochastic dynamical systems wherein the randomness of the problem is incorporated through a sequence of independent, identically distributed random vectors.For each of this class of systems, we start by using supermartingale theory to develop theorems concerning Lyapunov, asymptotic, and exponential (geometric, in the discrete-time case) stability in probability. We also provide generalizations of the Krasovskii-LaSalle invariant set theorem for stochastic dynamical systems. Furthermore, we derive global asymptotic stability in probability results based on radially unbounded Lyapunov functions.Next, we introduce the concept of stochastic dissipativity through an energetic supermartingale condition. We continue by formulating various necessary and sufficient conditions for stochastic dissipativity. Namely, we show that dissipativity is equivalent to an integrability condition on the maximum energy that can be, on average, extracted from the system. Furthermore, we show an equivalence with respect to an algebraic power balance inequality involving the infinitesimal generator (difference operator, in the discrete-time case) of the system. Additionally, we derive extended Kalman-Yakubovich-Popov conditions and utilize dissipativity principles to establish stability criteria for feedback interconnections of stochastic dynamical systems. Moreover, we investigate applications to thermodynamic models.Finally, we present a unified approach to optimal nonlinear analysis and feedback control within nonlinear stochastic dynamical systems by leveraging the insights on stability and dissipativity previously developed. Our focus lies on offering a framework for stochastic optimal control that emphasizes the interplay between stochastic Lyapunov theory and stochastic Hamilton-Jacobi-Bellman (Bellman, in the discrete-time case) theory. In particular, the solution to the steady-state form of the stochastic Hamilton-Jacobi-Bellman (Bellman, in the discrete-time case) equation serves as a Lyapunov function of the closed-loop system. This guarantees both stochastic stability and optimality. Moreover, we devise optimal feedback controllers for affine nonlinear systems through an inverse optimal control problem. Additionally, we determine stability margins for optimal and inverse optimal stochastic feedback regulators, establishing connections between stochastic dissipativity and the optimality of nonlinear controllers for stochastic dynamical systems.
- 일반주제명
- Control theory
- 일반주제명
- Control algorithms
- 일반주제명
- Controllers
- 일반주제명
- 17th century
- 일반주제명
- Stochastic models
- 일반주제명
- Engineering
- 일반주제명
- Energy
- 일반주제명
- Systems stability
- 일반주제명
- Inequality
- 일반주제명
- Dynamical systems
- 일반주제명
- 19th century
- 일반주제명
- Theorems
- 일반주제명
- Numbers
- 일반주제명
- Entropy
- 일반주제명
- System theory
- 일반주제명
- Mathematics
- 기본자료저록
- Dissertations Abstracts International. 87-05B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798263337551
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■035 ▼a(MiAaPQ)GeorgiaTech75224
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a519.93
■1001 ▼aPrieto, Manuel Lanchares.
■24510▼aStochastic Nonlinear Control for Continuous and Discrete Time Systems: Stability, Dissipativity, and Optimality
■260 ▼a[Sl]▼bGeorgia Institute of Technology▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a281 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-05, Section: B.
■500 ▼aAdvisor: Haddad, Wassim M.
■5021 ▼aThesis (Ph.D.)--Georgia Institute of Technology, 2024.
■520 ▼aAn airplane flying through turbulence, the spread of infectious diseases throughout the world, and the fluctuations in the stock market are just a few examples of systems where uncertainty plays a critical role. Stochastic dynamical systems theory is used to model this class of phenomena and provides insights into the dynamic behavior of systems subject to randomness. By incorporating stochastic elements into the mathematical models that describe reality, it is possible to better understand the probabilistic nature of these phenomena and make predictions that account for the inherent unpredictability. This approach allows for the development of control strategies to mitigate risks, optimize performance, and improve decision-making in various real-world applications.In this dissertation, we provide a unified framework to address the problems of stability, dissipativity, and optimality for stochastic dynamical systems. The inherent probabilistic nature of the problem requires the development of definitions and results whose complexity exceeds the one of deterministic systems. Here, we consider both continuous-time stochastic dynamical systems modeled by stochastic differential equations driven by Brownian motion, and discrete-time stochastic dynamical systems wherein the randomness of the problem is incorporated through a sequence of independent, identically distributed random vectors.For each of this class of systems, we start by using supermartingale theory to develop theorems concerning Lyapunov, asymptotic, and exponential (geometric, in the discrete-time case) stability in probability. We also provide generalizations of the Krasovskii-LaSalle invariant set theorem for stochastic dynamical systems. Furthermore, we derive global asymptotic stability in probability results based on radially unbounded Lyapunov functions.Next, we introduce the concept of stochastic dissipativity through an energetic supermartingale condition. We continue by formulating various necessary and sufficient conditions for stochastic dissipativity. Namely, we show that dissipativity is equivalent to an integrability condition on the maximum energy that can be, on average, extracted from the system. Furthermore, we show an equivalence with respect to an algebraic power balance inequality involving the infinitesimal generator (difference operator, in the discrete-time case) of the system. Additionally, we derive extended Kalman-Yakubovich-Popov conditions and utilize dissipativity principles to establish stability criteria for feedback interconnections of stochastic dynamical systems. Moreover, we investigate applications to thermodynamic models.Finally, we present a unified approach to optimal nonlinear analysis and feedback control within nonlinear stochastic dynamical systems by leveraging the insights on stability and dissipativity previously developed. Our focus lies on offering a framework for stochastic optimal control that emphasizes the interplay between stochastic Lyapunov theory and stochastic Hamilton-Jacobi-Bellman (Bellman, in the discrete-time case) theory. In particular, the solution to the steady-state form of the stochastic Hamilton-Jacobi-Bellman (Bellman, in the discrete-time case) equation serves as a Lyapunov function of the closed-loop system. This guarantees both stochastic stability and optimality. Moreover, we devise optimal feedback controllers for affine nonlinear systems through an inverse optimal control problem. Additionally, we determine stability margins for optimal and inverse optimal stochastic feedback regulators, establishing connections between stochastic dissipativity and the optimality of nonlinear controllers for stochastic dynamical systems.
■590 ▼aSchool code: 0078.
■650 4▼aControl theory
■650 4▼aControl algorithms
■650 4▼aControllers
■650 4▼a17th century
■650 4▼aStochastic models
■650 4▼aEngineering
■650 4▼aEnergy
■650 4▼aSystems stability
■650 4▼aInequality
■650 4▼aDynamical systems
■650 4▼a19th century
■650 4▼aTheorems
■650 4▼aNumbers
■650 4▼aOrdinary differential equations
■650 4▼aEntropy
■650 4▼aSystem theory
■650 4▼aMathematics
■690 ▼a0791
■690 ▼a0537
■690 ▼a0405
■71020▼aGeorgia Institute of Technology.
■7730 ▼tDissertations Abstracts International▼g87-05B.
■790 ▼a0078
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360368▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


