نتایج جستجو برای: adaptive control

تعداد نتایج: 1490742  

Self-tuning adaptive control technique has the advantage of being able to track the system operating conditions so that satisfactory control action can always be produced. Self-tuning algorithms can be implemented easily. Because the power systems are usually time varying non-linear systems and their parameters vary, adaptive controllers are very suitable for power systems. Characteristics of a...

Journal: :iranian journal of fuzzy systems 2014
hongyun yue junmin li

in this paper, an adaptive fuzzy control scheme is proposed for a class of perturbed strict-feedback nonlinear systems with unknown discrete and distributed time-varying delays, and the proposed design method does not require a priori knowledge of the signs of the control gains.based on the backstepping technique, the adaptive fuzzy controller is constructed. the main contributions of the paper...

Journal: :journal of ai and data mining 2016
y. vaghei a. farshidianfar

in recent years, underactuated nonlinear dynamic systems trajectory tracking, such as space robots and manipulators with structural flexibility, has become a major field of interest due to the complexity and high computational load of these systems. hierarchical sliding mode control has been investigated recently for these systems; however, the instability phenomena will possibly occur, especia...

Journal: :مکانیک سازه ها و شاره ها 0
محمد مهدی فاتح استاد کنترل، دانشکده مهندسی برق و رباتیک، دانشگاه شاهرود، شاهرود مجید عابدین زاده شهری کارشناس ارشد رباتیک،دانشکده مهندسی برق، دانشگاه شاهرود، شاهرود

a mobile manipulator robot is known as a complex system due to some properties such as coupling between the manipulator and mobile chassis, holonomic and nonholonomic constraints, multivariable and nonlinear dynamics. the control of robot faces the external disturbance, parametric uncertainty and unmodeled dynamics. therefore, the use of an adaptive fuzzy system is suggested for its capability ...

2014
Jens Förderer Thomas Kude Sebastian Walter Schütz Armin Heinzl

Service platforms emerge as a dominant strategy for generating innovations. In this paper we argue that leveraging innovations on service platforms requires a careful trade-off between stimulating and controlling generativity. In order to gain a richer understanding of this duality we distill literature on generativity across disciplines. Our review yields two mechanisms for controlling generat...

Journal: :the modares journal of electrical engineering 2015
syed hamid hashemipour nastrn vasegh ali khaki sedigh

in this paper, the problem of decentralized model reference adaptive control (mrac) for a class of large scale systems with time varying delay in interconnected term and input and state delays is studied. to compensate the effect of input delay indirectly, a smith predictor built on. to handle the effects of the time delays in input, the adaptive controller part includes two auxiliary dynamic f...

Journal: :amirkabir international journal of modeling, identification, simulation & control 2014
b. karimi h. ghiti sarand

this paper is concerned with the consensus tracking problem of high order mimo nonlinear multi-agent systems. the agents must follow a leader node in presence of unknown dynamics and uncertain external disturbances. the communication network topology of agents is assumed to be a fixed undirected graph. a distributed adaptive control method is proposed to solve the consensus problem utilizing re...

Journal: :iranian journal of fuzzy systems 0
reza ghasemi department of electrical engineering, university of qom, qom, iran mohammad bagher menhaj department of electrical engineering, amirkabir university of technology, tehran, iran, and qiau’s incubator center of technology units (center of cognitive systems), qazvin, iran

in this paper, an observer based fuzzy adaptive controller (fac) is designed fora class of large scale systems with non-canonical non-affine nonlinear subsystems. it isassumed that functions of the subsystems and the interactions among subsystems areunknown. by constructing a new class of state observer for each follower, the proposedconsensus control method solves the problem of unmeasured sta...

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