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5th International Conference on Recent Developments in control, Automation and Power engineering, RDCAPE 2023

作者： Kumar, Abhik Valluru, Sudarshan K. Rayguru, M.M. Control of Dynamical Systems Computation Laboratory Department of Electrical Engineering Delhi Technological University Delhi India

ISBN: (纸本)9789819600465

The primary objective of this research work is to investigate model-free path planning for reconfigurable robots using value and policy iterations. The focus is on developing and evaluating an autonomous algorithm for robot path planning. Initially, the A-Star algorithm was modified to incorporate model-based learning. Subsequently, model-free reinforced learning was incorporated through value iteration and policy iteration. The experimental validations of modified A-Star algorithm is conducted in python virtual environment. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Reinforcement learning

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dynamical BOUNDARY control OF TWO-DIMENSIONAL WAVE-EQUATIONS - VIBRATING MEMBRANE ON GENERAL DOMAIN

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IEEE TRANSACTIONS ON AUTOMATIC control 1989年第11期34卷 1181-1185页

作者： YOU, YC LEE, EB Department of Electrical Engineering Center of Control Science and Dynamical Systems University of Minnesota Minneapolis MN USA

dynamical boundary control of a vibrating membrane with edge mass and of general shape is mathematically formulated as an abstract evolutionary system. The approximate controllability and the strong stabilization by linear boundary damping feedback are established by an approach based on LaSalle's invariance principle. The mathematical model and the reduced system can be used to investigate some optimization problems.< >

关键词： Partial differential equations Biomembranes control systems Weight control Shape control controllability Force control Linear feedback control systems Damping Gold

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ADAPTIVE ANTENNA systems

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PROCEEDINGS OF THE INSTITUTE OF electrical AND ELECTRONICS ENGINEERS 1967年第12期55卷 2143-+页

作者： WIDROW, B MANTEY, PE GRIFFITHS, LJ GOODE, BB Department of Electrical Engineering University of Stanford Stanford CA USA Control and Dynamical Systems Group IBM San Jose CA USA

A system consisting of an antenna array and an adaptive processor can perform filtering in both the space and the frequency domains, thus reducing the sensitivity of the signal-receiving system to interfering directional noise sources. Variable weights of a signal processor can be automatically adjusted by a simple adaptive technique based on the least-mean-squares (LMS) algorithm. During the adaptive process an injected pilot signal simulates a received signal from a desired "look" direction. This allows the array to be "trained" so that its directivity pattern has a main lobe in the previously specified look direction. At the same time, the array processing system can reject any incident noises, whose directions of propagation are different from the desired look direction, by forming appropriate nulls in the antenna directivity pattern. The array adapts itself to form a main lobe, with its direction and bandwidth determined by the pilot signal, and to reject signals or noises occurring outside the main lobe as well as possible in the minimum mean-square error sense. Several examples illustrate the convergence of the LMS adaptation procedure toward the corresponding Wiener optimum solutions. Rates of adaptation and misadjustments of the solutions are predicted theoretically and checked experimentally. Substantial reductions in noise reception are demonstrated in computer-simulated experiments. The techniques described are applicable to signal-receiving arrays for use over a wide range of frequencies.

关键词： Adaptive systems Adaptive arrays Signal processing Directive antennas Noise reduction Least squares approximation Antenna arrays Adaptive filters Filtering Frequency domain analysis

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SOLUTION OF THE EQUATION A(Z)X(Z)+X(Z)B(Z)=C(Z) AND ITS APPLICATION TO THE STABILITY OF GENERALIZED LINEAR-systems

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INTERNATIONAL JOURNAL OF control 1984年第6期40卷 1065-1075页

作者： BRIERLEY, SD LEE, EB Control Science and Dynamical Systems Center 13 Electrical Engineering University of Minnesota 12 Church Street Southeast Minneapolis Minnesota 55455 U.S.A

An explicit solution is developed of the matrix equation A(z)X(z) + X(z)B(z) = C(z) where z is a parameter. The approach considered is general in that no particular representations are assumed and the solution X(z) is expressed as a simple function of the matrices involved. As an application, the stability of a class of generalized linear systems is discussed, namely systems which depend polynomially on a real parameter and time-delay systems.

关键词： SYSTEM STABILITY

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Chaotic Behavior of DC-DC Boost Converter by using Voltage Mode control 4

Chaotic Behavior of DC-DC Boost Converter by using Voltage M...

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4th International Conference for Emerging Technology, INCET 2023

作者： Ganesh, Sandhu Valluru, Sudarshan K. Control of Dynamical Systems and Computation Laboratory Department of Electrical Engineering Delhi110042 India

ISBN: (纸本)9798350335750

This paper examines the Boost converter's chaotic behavior. A voltage mode controlled technique is being utilized to analyze the discrete-time mapping to determine the properties of the bifurcation that operate in a closed loop. By varying some parameters while holding others constant, the reference voltage and input voltage are used to examine the bifurcation diagram. It has been noted that the system becomes unstable and splits into two time-periodic systems, four time - periodic systems and then chaos takes over the system. These occurrences have been shown in the bifurcation diagram, therefore the converter's safe operating range can be determined and verified by using the time-domain waveforms and phase plots. © 2023 IEEE.

关键词： Boost converter

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Convexification of optimal power flow problem

Convexification of optimal power flow problem

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48th Annual Allerton Conference on Communication, control, and Computing, Allerton 2010

作者： Lavaei, Javad Low, Steven H. Department of Control and Dynamical Systems California Institute of Technology United States Computer Science and Electrical Engineering Departments California Institute of Technology United States

ISBN: (纸本)9781424482146

The optimal power flow (OPF) problem is nonconvex and generally hard to solve. We provide a sufficient condition under which the OPF problem is equivalent to a convex problem and therefore is efficiently solvable. Specifically, we prove that the dual of OPF is a semidefinite program and our sufficient condition guarantees that the duality gap is zero and a globally optimal solution of OPF is recoverable from a dual optimal solution. This sufficient condition is satisfied by standard IEEE benchmark systems with 14, 30, 57, 118 and 300 buses after small resistance (10-5 per unit) is added to every transformer that originally assumes zero resistance. We justify why the condition might hold widely in practice from algebraic and geometric perspectives. The main underlying reason is that physical quantities such as resistance, capacitance and inductance, are all positive. ©2010 IEEE.

关键词： Electric load flow

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Utility functionals associated with available congestion control algorithms

Utility functionals associated with available congestion con...

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IEEE INFOCOM 2010

作者： Lavaei, Javad Doyle, John C. Low, Steven H. Department of Control and Dynamical Systems California Institute of Technology United States Computer Science and Electrical Engineering Departments California Institute of Technology United States

ISBN: (纸本)9781424458363

This paper is concerned with understanding the connection between the existing Internet congestion control algorithms and the optimal control theory. The available resource allocation controllers are mainly devised to derive the state of the system to a desired equilibrium point and, therefore, they are oblivious to the transient behavior of the closed-loop system. To take into account the real-time performance of the system, rather than merely its steady-state performance, the congestion control problem should be solved by maximizing a proper utility functional as opposed to a utility function. For this reason, this work aims to investigate what utility functionals the existing congestion control algorithms maximize. In particular, it is shown that there exist meaningful utility functionals whose maximization leads to the celebrated primal, dual and primal/dual algorithms. An implication of this result is that a real network problem may be solved by regarding it as an optimal control problem on which some practical constraints, such as a real-time link capacity constraint, are imposed. ©2010 IEEE.

关键词： Closed loop systems

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Internet Congestion control

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IEEE control systems 2002年第1期22卷 28-43页

作者： Low, Steven H. Paganini, Fernando Doyle, John C. Departments of Computer Science and Electrical Engineering California Institute of Technology Pasadena CA 91125 United States Department of Electrical Engineering University of California Los Angeles CA 90095 United States Departments of Electrical Engineering and Control and Dynamical Systems California Institute of Technology Pasadena CA 91125 United States

This article reviews the current transmission control protocol (TCP) congestion control protocols and overviews recent advances that have brought analytical tools to this problem. We describe an optimization-based framework that provides an interpretation of various flow control mechanisms, in particular, the utility being optimized by the protocol's equilibrium structure. We also look at the dynamics of TCP and employ linear models to exhibit stability limitations in the predominant TCP versions, despite certain built-in compensations for delay. Finally, we present a new protocol that overcomes these limitations and provides stability in a way that is scalable to arbitrary networks, link capacities, and delays.

关键词： Internet Stability control systems Delay Access protocols Size control IP networks Feedback Analytical models Aggregates

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Bifurcation Analysis of Current-mode controlled CUK converter 2

Bifurcation Analysis of Current-mode controlled CUK converte...

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2nd Asian Conference on Innovation in Technology, ASIANCON 2022

作者： Kumar, Avinash Valluru, Sudarshan K. Delhi Technological University Control of Dynamical Systems and Computation Lab Department of Electrical Engineering Delhi India

ISBN: (数字)9781665468510

ISBN: (纸本)9781665468510

This paper analyses the bifurcation behaviour of the CUK converter operating under continuous conduction mode. Discrete-time mapping is used to analyse the bifurcation parameters operating under a closed loop with a current-controlled scheme. to study the bifurcation diagram parameters like reference current and the Input voltage are varied by keeping others constant. It has been observed that the system loses its stability and bifurcates from 1 time-periodic to 2-time-periodic. The system then enters into chaos. These phenomena have been observed in the bifurcation diagram and hence the maximum range in which the converter can operate safely is known and is validated by time-domain waveforms and phase plots. © 2022 IEEE.

关键词： Bifurcation (mathematics)

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Application of linear quadratic methods to stabilize cart inverted pendulum systems 2

Application of linear quadratic methods to stabilize cart in...

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2nd IEEE International Conference on Power Electronics, Intelligent control and Energy systems, ICPEICES 2018

作者： Valluru, Sudarshan K Singh, Madhusudan Singh, Mayank Delhi Technological University Incubation Center for Control Dynamical Systems Electrical Engineering Delhi110042 India

ISBN: (纸本)9781538666258

This paper presents the application of linear-quadratic methods of optimal control for a class of reference tracking problem. Specifically, linear quadratic regulator and linear-quadratic Gaussian methods are outlined to synthesize a desired closed loop system. Selection criteria of weights for both state weighting matrix, Q, and control weighting matrix, R, is addressed for the LQR design to satisfy the robustness measures for a closed loop system. The design is extended to employ linear quadratic estimator for the LQG design. An unstable linearized model of the cart inverted pendulum is considered to validate the proposed methodology. © 2018 IEEE.

关键词： Closed loop systems

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