The Numerical Solution of Continuous Time Optimal Control Problems with the Cutting Angle Method

$130.00

Seyedalireza Seyedi
Università di Bologna, Bologna, Italy

Iraj Sadegh Amiri
Ho Chi Minh City, Vietnam

Sara Chaghervand
Islamic Azad University, Hamedan, Iran

Volker J. Sorger
The George Washington University, Washington, D.C., USA

Series: Mathematics Research Developments
BISAC: MAT027000

This book consists of two parts. The first part is on the development of the proposition that “if there exists a type of function, then there exists a functional with the same type” based on the proposition of the inheritance and generalizability properties of a function in a functional. This study presents the abstract convex, increasing positively homogeneous and convex-along-rays functionals via this proposition. The second part concerns the investigation of the use of a global search optimization algorithm called the Cutting Angle Method (CAM) on Optimal Control Problems (OCP). Many algorithms are available for solving OCP, but they are basically local search algorithms. To overcome the problem associated with local searches, most OCP are modeled as Linear Quadratic Regulator (LQR) problems in the hope that the solution found estimates of the true global solution to the original problem. However, in doing so, a lot of information carried by the original problem might be lost in its translation into LQR models.

CAM being a global search algorithm is expected to overcome this problem. It can be used alone or in combination with a local search to find the global solution. CAM has been successfully used on functions, however, OCP are functionals. To do this, a model has been introduced based on inheritance and generalizability properties to demonstrate that the optimization algorithms that are used for functions can also be extended for use in functionals. Based on these properties, the study discovered that with the Unit Vectors Combinations Technique (UVCT) proposed in this research, CAM could successfully work on functionals in general and OCP particularly. To help speed up the convergence of CAM, the literature proposed the use of local searches for the determination of the initial solution. In a case study done in the research, CAM was successfully combined with a local search known as the Dynamic Integrated System Optimization and Parameter Estimation (DISOPE) algorithm. Moreover, the initial solution given by the DISOPE algorithm has been verified as a global influence by CAM.

Table of Contents

Table of Contents

Preface

Chapter 1. Introduction on Cutting Angle Method Inspired By Abstract Convexity for Solving Continuous Time Optimal Control Problems

Chapter 2. A Wide Literature Review on Building the Cutting Angle Method

Chapter 3. The Inheritance and Generalizability Properties Extended From Function Definitions into Functionals

Chapter 4. Study of Some New Type of Functionals Defined Based the Inheritance and Generalizability Properties of Functions

Chapter 5. Capability of Function Optimization Algorithms for Solving Optimal Control Problems With Respect to the Inheritance and Generalizability Properties

Chapter 6. A Generalized Version of Cutting Angle Method for Solving Continuous Time Optimal Control Problems

Chapter 7. A Combination of the Cutting Angle Method and a Local Search on Optimal Control Problems

Index


References

Chapter 1

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Chapter 2

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Chapter 3

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Chapter 4

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Chapter 5

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[2] Seyedi, S., Ahmad, R. & Aziz, M. I. A. (2009). “Inheritance of Function Properties for Functionals”.

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Chapter 6

[1] Singh, M. G. & Titli, A. (1978). Systems: decomposition, optimisation, and control: Pergamon.

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Chapter 7

[1] Bagirov, A. & Rubinov, A. (2000). “Global minimization of increasing positively homogeneous functions over the unit simplex”, Annals of Operations Research, 98(1-4), 171-187.

[2] Bagirov, A. M. & Rubinov, A. M. (2003). “Cutting angle method and a local search”, Journal of Global Optimization, 27(2-3), 193-213.

[3] Roberts, P. (1999). “Stability properties of an iterative optimal control algorithm”, in Proceedings of 14th IFAC World Congress on Automatic Control, 269-274.

[4] Bryson, Jr. A. E. (1996) “Optimal control-1950 to 1985”, Control Systems, IEEE, 16(3), 26-33.

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