نتایج جستجو برای: fuzzy switching control

تعداد نتایج: 1459126  

Journal: :amirkabir international journal of modeling, identification, simulation & control 2014
m.h. ranjbar jaferi s.m.a. mohammadi m. mohammadian

based on the problems caused by today conventional vehicles, much attention has been put on the fuel cell vehicles researches. however, using a fuel cell system is not adequate alone in transportation applications, because the load power profile includes transient that is not compatible with the fuel cell dynamic. to resolve this problem, hybridization of the fuel cell and energy storage device...

Journal: :Intelligent Automation & Soft Computing 2009
M. J. Zeini J. M. Eghtesad M. Yaghoubi

In this paper, fuzzy switching control of the complete oil cycle of Shiraz solar power plant is presented. So far, in the literature, only modeling and control of the collectors’ field of a solar power plant, which is a part of the complete oil cycle, have been studied. According to various environmental conditions, input disturbances and design constraints in some components, changes of the oi...

M. Mirsalim, M. M. Rezaei,

Here, a new fuzzy direct torque control algorithm for induction motors is proposed. As in the classical direct torque control, the inverter gate control signals directly come from the optimum switching voltage vector look-up table, the best voltage space vector selection is a key factor to obtain minimum torque and flux ripples. In the proposed approach, the best voltage space vector is sel...

2002
Murat Akgül Ömer Morgül H. Altay Güvenir Aydan Erkmen Mehmet Baray

ANALYSIS AND DESIGN OF SWITCHING AND FUZZY SYSTEMS Murat Akgül Ph.D. in Department of Electrical and Electronics Engineering Supervisor: Prof. Dr. Ömer Morgül September 2002 In this thesis we consider the controller design problems for switching and fuzzy systems. In switching systems, the system dynamics and/or control input take different forms in different parts of the underlying state space...

2008
Yi Liu Georgi M. Dimirovski Jun Zhao

The problem of robust output-feedback control for a class of uncertain switching fuzzy control systems is investigated. Asymptotic stability of the observer, based on the error equation, is obtained by using the switching technique and the common Lyapunov function method. Switching laws are also designed via using single Lyapunov function method for observer equation such that the closed-loop s...

2009
Guang-Hong Yang Jiuxiang Dong

This paper studies the problem of dynamic output feedback H∞ control for nonlinear systems, which are described by Takagi–Sugeno fuzzy parts with measurable premise variables and uncertainty parts. The uncertainties are parameter dependent, unknown, and time varying but bounded. A switching fuzzy dynamic output feedback control scheme is proposed, which depends on the measurable premise variabl...

2015
T. VIGNESH V. THANGARASU K. PRASANTH R. KAVI SELVAN

Vector control is one of the standard techniques used for the control of a permanent magnet synchronous motor (PMSM). The outer speed loop in vector controlled PMSM drive greatly affects the drive performance. In order to combine the advantages of proportional plus integral (PI) and fuzzy controllers, hybrid fuzzy-PI controllers are used in which the output can either be the outputs of the two,...

2011
Shun-Hung Chen Jyh-Ching Juang

This paper presents a switch methodology together with a sum of squares (SOS) techniques to synthesize a nonlinear controller for a polynomial Takagi-Sugeno (TS) fuzzy model. A polynomial T-S fuzzy model adopts a polynomial representation of the nonlinear dynamics in its consequent part, which make it less susceptible to linearization errors. With respect to polynomial T-S fuzzy models, a fuzzy...

Journal: :IEEE Trans. Industrial Electronics 2001
Quang Phuc Ha Q. H. Nguyen David C. Rye Hugh F. Durrant-Whyte

This paper concerns the design of robust control systems using sliding-mode control that incorporates a fuzzy tuning technique. The control law superposes equivalent control, switching control, and fuzzy control. An equivalent control law is first designed using pole placement. Switching control is then added to guarantee that the state reaches the sliding mode in the presence of parameter and ...

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