نتایج جستجو برای: adaptive control system

تعداد نتایج: 3377092  

Ghazanfar Shahgholian, Javad Faiz Mojtaba Maghsoodi

This paper presents fuzzy and conventional performance of model reference adaptive control(MRAC) to control a DC drive. The aims of this work are achieving better match of motor speed with reference speed, decrease of noises under load changes and disturbances, and increase of system stability. The operation of nonadaptive control and the model reference of fuzzy and conventional adaptive contr...

Static Synchronous Compensator (STATCOM) is a FACTS device whose structure is based on a voltage source converter and is installed in parallel to control the voltage of the transmission line in the power system. In this paper, a flat adaptive control system for STATCOM output voltage control is simulated. By linearizing the nonlinear dynamics and changing the system state variables, the control...

Journal: :journal of physical & theoretical chemistry 2015
jalal javadi moghaddam mostafa mirzaei masood madani mohammadreza norouzi atena khodarahmi

in this paper, an adaptive neuro fuzzy sliding mode based genetic algorithm (anfsga) controlsystem is proposed for a ph neutralization system. in ph reactors, determination and control of ph isa common problem concerning chemical-based industrial processes due to the non-linearity observedin the titration curve. an anfsga control system is designed to overcome the complexity of precisecontrol o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند 1388

a significant problem in multicarrier communication systems is the necessity to reduce the value of papr (peak-to-average power ratio) of transmitting signal. in this thesis we study the effect of the system parameters such as coding and modulation types on papr and ultimate ber in a mc-cdma system. in this study we consider fading channel as well as the nonlinearity of transmitter’s amplifier ...

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...

Journal: :International Journal of Engineering Applied Sciences and Technology 2020

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی برق 1380

در این رساله به روش تحلیلی، طراحی کنترل کننده تطبیقی به کمک شبکه های عصبی برای سیستمهای ابعاد وسیع نامتمرکز دارای زیر سیستمهای غیر خطی غیر فاین با درجه نسبی کامل انجام شده است. طراحی کنترل کننده به کونه ای است که پایداری زیر سیستمهای حلقه بسته، کل سیستم و همگرایی خطای بین هر زیر سیستم و مدل مرجع آن به سمت صفر، تضمین می شود.رویکرد این رساله به شبکه های عصبی، رویکرد جدیدی است که در چند سال اخیر ب...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تحصیلات تکمیلی صنعتی کرمان - پژوهشکده برق و کامپیوتر 1390

a phase-locked loop (pll) based frequency synthesizer is an important circuit that is used in many applications, especially in communication systems such as ethernet receivers, disk drive read/write channels, digital mobile receivers, high-speed memory interfaces, system clock recovery and wireless communication system. other than requiring good signal purity such as low phase noise and low spu...

Journal: :international journal of automotive engineering 0
m. tehrani mechanical engineering department, university of tehran, tehran, iran r. hairi-yazdi mechanical engineering department, university of tehran, tehran, iran ba. haghpanah-jahromi mechanical and industrial engineering department, northeastern university, boston, massachusetts, usa v. esfahanian mechanical engineering department, university of tehran, tehran, iran m. amiri mechanical engineering department, university of tehran, tehran, iran r. jafari mechanical engineering department, university of tehran, tehran, iran

in this paper, an adaptive rule based controller for an anti-lock regenerative braking system (arbs) of a series hybrid electric bus (sheb) has been proposed. the proposed controller integrates the regenerative braking and wheel anti-lock functions by controlling the electric motor of the hybrid vehicle, without using any conventional mechanical anti-lock braking system. the performance of the ...

This paper presents a novel indirect adaptive Power System Stabilizer (PSS) via a developed synergetic control methodology and fuzzy systems. Fuzzy system is utilized in an adaptive scheme to estimate the system using a nonlinear model. The synergetic control guarantees robustness of the controller and makes the controller easy to implement because of using a chatter free continuous control law...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید