Results 41 to 50 of about 17,319 (149)

Adaptive optimal control approach to robust tracking of uncertain linear systems based on policy iteration

open access: yesMeasurement + Control, 2021
In this study, an optimal adaptive control approach is established to solve the robust output tracking problem of a class of continuous time uncertain linear systems based on the policy iteration (PI) in actor-critic algorithm.
Dengguo Xu, Qinglin Wang, Yuan Li
doaj   +1 more source

A Short-Current Control Method for Constant Frequency Current-Fed Wireless Power Transfer Systems

open access: yesEnergies, 2017
Frequency drift is a serious problem in Current-Fed Wireless Power Transfer (WPT) systems. When the operating frequency is drifting from the inherent Zero Voltage Switching (ZVS) frequency of resonant network, large short currents will appear and damage ...
Yanling Li, Qichang Duan, Weiyi Li
doaj   +1 more source

Pole Assignment Based Auxiliary Damping Control for Renewable Generation Integrated into Power System

open access: yesZhongguo dianli, 2021
A large amount of renewable energy has changed the damping characteristics of the power system through the access of power electronic equipment, resulting in the prominent problem of low-frequency oscillation of synchronous generators, posing a threat to
Yi ZHANG   +5 more
doaj   +1 more source

On the Path-Width of Integer Linear Programming [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2014
We consider the feasibility problem of integer linear programming (ILP). We show that solutions of any ILP instance can be naturally represented by an FO-definable class of graphs. For each solution there may be many graphs representing it.
Constantin Enea   +3 more
doaj   +1 more source

A generalization of auxiliary problem principle with applicationsto variational inequalities

open access: yesInternational Journal of Stochastic Analysis, 2002
The author constructs a sequence which converges to a solution of some variational inequality under quite restrictive conditions on the involved nonlinearity.
openaire   +2 more sources

Simultaneous identification of the right-hand side and time-dependent coefficients in a two-dimensional parabolic equation

open access: yesMathematical Modelling and Analysis
This paper investigates the simultaneous identification of time-dependent lowest and source terms in a two-dimensional (2D) parabolic equation from the additional measurements.
Yashar T. Mehraliyev   +2 more
doaj   +1 more source

A Predictor-Corrector Method for Solving Equilibrium Problems

open access: yesAbstract and Applied Analysis, 2014
We suggest and analyze a predictor-corrector method for solving nonsmooth convex equilibrium problems based on the auxiliary problem principle. In the main algorithm each stage of computation requires two proximal steps.
Zong-Ke Bao, Ming Huang, Xi-Qiang Xia
doaj   +1 more source

The Optimal Frequency Control Problem of a Nonlinear Oscillator

open access: yesMathematics
We study a minimum-time (time-optimal) control problem for a nonlinear pendulum-type oscillator, in which the control input is the system’s natural frequency constrained to a prescribed interval.
Victor Ilyutko   +2 more
doaj   +1 more source

Design of auxiliary parking device of mine-used trackless rubber-tyred vehicle

open access: yesGong-kuang zidonghua, 2014
In view of hidden security trouble in astern running for trackless rubber-tyred vehicle, an auxiliary parking device of mine-used trackless rubber-tyred vehicle was designed, and acquisition principle of signals of astern running distance, image, running
CHENG Liusheng   +4 more
doaj   +1 more source

The Structure of Differential Invariants and Differential Cut Elimination [PDF]

open access: yesLogical Methods in Computer Science, 2012
The biggest challenge in hybrid systems verification is the handling of differential equations. Because computable closed-form solutions only exist for very simple differential equations, proof certificates have been proposed for more scalable ...
Andre Platzer
doaj   +1 more source

Home - About - Disclaimer - Privacy