نتایج جستجو برای: fuzzy optimal control

تعداد نتایج: 1702883  

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...

2005
Nikos Tsourveloudis Lefteris Doitsidis Stratos Ioannidis

An Evolutionary Algorithm (EA) strategy for the optimization of generic Work-In-Process (WIP) scheduling fuzzy controllers is presented. The EA is used to tune a set of fuzzy control modules which are used for distributed and supervisory WIP scheduling. The distributed controllers objective is to control the rate in each production stage so that satisfies the demand for final products while red...

2012
ZHENG XIAOLIANG HU YELIN ZHU LONGJI CHEN ZHAOQUAN SHA CHENG

The intelligent control technology with the traditional control theory formats intelligent compound controller in order to learn from each other and improve the overall advantage of complementary features. Fuzzy PID control neuron PID control, fuzzy sliding mode control, and optimal control of the neural network. This paper discusses the current situation and development of smart composite cont...

Journal: :اقتصاد و توسعه کشاورزی 0
حسین زاد حسین زاد جوادی جوادی حیاتی حیاتی پیش بهار پیش بهار دشتی دشتی

abstract the use of water sources has increased due to extend of agricultural activity for answering food needs of increasing population. while because of exploitation and consumption of water, the use of this restricted resource is not appropriate. consequently in many districts of country the head level of ground water aquifers have been fallen and water level is negative. so, application of ...

Journal: :اقتصاد و توسعه کشاورزی 0
فاطمه برادران سیرجانی محمدرضا کهنسال محمود صبوحی

optimal allocation of water resources is an essential service in agriculture that must be considered by farmers. one of the most significant factors in optimal allocation of water resources in agriculture is to define optimal farm cropping pattern. in this study, in order to determine optimal cropping pattern and water resources allocation in central district of mashhad city (toos village), the...

2011
C. Boeri F. Neto da Silva J. Ferreira M. Soares dos Santos

The contribution of this paper is to provide a nonlinear MIMO scheme for a drying process, composed by four fuzzy controllers: Fuzzy Dehumidifier Controller (FDC-PD), Fuzzy Humidifier Controller (FHRC-PD), Fuzzy Electrical Resistance controller (FERC-PD) and Fuzzy Blower Controller (FBC-FD) and compare with results obtained previously with PID control scheme. The main aim is to allow the resear...

The main objective of this paper is to model and optimize the parallel and relatively complex FuzzyP+FuzzyI+FuzzyD (FP+FI+FD) controller for simultaneous control of the voltage and frequency of a micro-grid in the islanded mode. The FP+FI+FD controller has three parallel branches, each of which has a specific task. Finally, as its name suggests, the final output of the controller is derived fro...

2011
Kumaresan Nallasamy Kuru Ratnavelu Bernardine R. Wong

In this paper, the unsteady Navier-Stokes Takagi-Sugeno (T-S) fuzzy equations (UNSTSFEs) are represented as a differential algebraic system of strangeness index one by applying any spatial discretization. Since such differential algebraic systems have a difficulty to solve in their original form, most approaches use some kind of index reduction. While processing this index reduction, it is impo...

2007
Seyed A. Shahrestani David J. Hill

{ A multilevel nonlinear control scheme with capability of operating over wide ranges is proposed. The rst control level connnes the system operation to some reference segments in its state space. On each reference segment, the required control actions are identiied through structural analysis of the (nonlinear) system which helps in exploitation of its qualitative behavior. The exploitation of...

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