نتایج جستجو برای: multi area power system

تعداد نتایج: 3331176  

Journal: :energy equipment and systems 0
alireza noorpoor graduate faculty of environment, university of tehran, tehran, iran parisa heidarnejad graduate faculty of environment, university of tehran, tehran, iran nasim hashemian graduate faculty of environment, university of tehran, tehran, iran amir ghasemi graduate faculty of environment, university of tehran, tehran, iran

integrated energy systems utilizing renewable sources are sustainable and environmentally substitutes for conventional fossil-fired energy systems. a new multigeneration plant with two inputs, such as biomass and solar energy, and four useful outputs, such as cooling, heating, power, and distilled water, is presented and investigated in this paper. the proposed system includes evacuated tube so...

2007
HASSAN BEVRANI TAKASHI HIYAMA YASUNORI MITANI KIICHIRO TSUJI

Automatic Generation Control (AGC) problem has been one of the major subjects in electric power system design/operation and is becoming much more significant today in accordance with increasing size, changing structure and complexity of interconnected power systems. In practice, AGC systems use simple proportional-integral (PI) controllers. However, since the PI controller parameters are usuall...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده مهندسی شیمی 1389

on this project we try to calculated power of hydrogen on dycarbonil compound in different ways ; the first way is shoster way , for sain power of hydrogen notice the different power between central conforms on it and main conform that’s didn’t have hydrogen joint . or in other way different of energy between open and close form. second way, is average way? this is for way that studied conf...

Hatefi Kia, Masoud ,

Abstract: Distribution economic burden in power system is one of the important and essential issues in power plant production planning. This thesis presents the economic burden for generating power plants with smooth and uneven functions and considering the constraints of the power plant (steam valve, forbidden areas, with and without transmission losses) in a multi-generator power system. The ...

Journal: :journal of advances in computer research 0
mohammad sadegh payam young researchers and elite club, boroujen branch, islamic azad university, boroujen, iran ehsan bijami young researchers and elite club, boroujen branch, islamic azad university, boroujen, iran

this paper presents a new damping controller design based on fuzzy wavelet neural network (fwnn) to damp the multi-machine power system low frequency oscillations. the error between the desired system output and the output of control object is directly utilized to tune the network parameters. the orthogonal least square (ols) algorithm is used to purify the wavelets for each rule and determine ...

2013
Mehdi Derafshian Maram Nima Amjady Abbas Rezaey

The requirement for minimized cost whilst preserving power system reliability necessitates the development of both efficient system security assessment approaches and appropriate emergency remedial actions. Load shedding is a type of corrective actions that is applied to save power system stability against severe disturbances. This paper proposes an optimal load shedding policy that takes into ...

2010
Mahdiyeh Eslami Hussain Shareef Azah Mohamed

This study proposed a novel algorithm to tune and coordinate power system stabilizers (PSSs) in multi-machine power systems. For a multi-machine power system, the coordination of the PSS parameters is generally formulated as an objective function with constraints including the damping ratio and damping factor. A novel hybrid particle swarm optimization (PSO) with the passive congregation algori...

2016
H. Shayeghi A. Molaee A. Ghasemi

This paper addresses optimal design and performance analysis of the Social Spider Optimization (SSO) algorithm based Fractional Order Proportional Integral Derivative (FOPID) controller for load frequency control (LFC) in an interconnected multi-source power system. Since this controller has more adjusted parameters than classical proportional-integral-derivative (PID) controller, thus it provi...

2000
Badrul H. Chowdhury Bogdan M. Wilamowski Wing-Choi Ma

A quantized controller is a model-free controller which can provide a nonlinear control. This paper conduct a preliminary study on using the quantized controller in the Static VAR Compensators (SVC) control to enhance the damping of the power-swing. The test system used is a two area multi-machine system. A severe disturbance is introduced into the power system and the quantized controller cont...

2004
Chun Liu Ryuichi Yokoyama Kaoru Koyanagi Kwang Y. Lee

In Japan, low-frequency oscillations have been observed on trunk transmission systems, and have been the subject for studies in fields of operation, control, and devices by many power system utilities. Power system stabilizers (PSS) are very effective controllers in enhancing the damping of low-frequency oscillations, since the controllers can increase damping torque for inter area modes by int...

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