Filters








66 Hits in 1.4 sec

Nonlinear dynamic analysis and chaos control for third order sub-harmonic in a ferroresonant circuit

Yanping Wu
2012 International Journal of Physical Sciences  
Furthermore, a sliding mode controller of the system is designed and both theory analysis and numerical simulation are presented, which shows the effectiveness and potentials of the proposed techniques  ...  In this paper, the nonlinear dynamics of a non-autonomous system model for third order sub-harmonic in a basic ferroresonant circuit are analyzed in details, including phase trajectory, Poincaré map, bifurcation  ...  Some authors who attempt to study ferroresonance were reported in and Saravanaselvan and Ramanujam (2011) .  ... 
doi:10.5897/ijps11.1746 fatcat:gkifyqv4ojcxhiypxlsdubgena

Effect of New Suggested Ferroresonance Limiter on the Stability Domain of Chaotic Ferroresonance in the Power Transformer with Linear Core Model

Hamid Radmanesh, Hamid Fathi, Mehrdad Rostami
2011 Energy and Power Engineering  
Significant effect on occurring chaotic ferroresonance, the range of parameter values that may lead to overvoltage and magnitude of ferroresonance overvoltage is obtained, showed and tabulated.  ...  It is expected that this limiter generally can control the ferroresonance. For studying these phenomena, at first ferroresonance is introduced and a general modeling approach is given.  ...  q/E 1 2 3 4 5 6 7 8 7 P1 P3 P5 chaos chaos chaos chaos chaos 11 P1 P1 chaos chaos P3 P3 chaos chaos P: period. Table 3 . 3 Power system parameters and per unit values.  ... 
doi:10.4236/epe.2011.34058 fatcat:om263ev2j5as7ovjdlhbwsyt7a

Analysis of Chaotic Ferroresonance Phenomena in Unloaded Transformers Including MOV

Ataollah Abbasi, Mehrdad Rostami, Ahmad Gholami, Hamid R. Abbasi
2011 Energy and Power Engineering  
Significant effect on the onset of chaos, the range of parameter values that may lead to chaos and magnitude of ferroresonant voltages is obtained, shown and tabulated.  ...  We study the effect of a parallel metal oxide surge arrester on the ferroresonance oscillations of transformers. It is expected that the arresters generally cause ferroresonance drop out.  ...  [5] [6] [7] [8] are among the early investigations in applying theory of bifurcation and chaos to ferroresonance.  ... 
doi:10.4236/epe.2011.34057 fatcat:3j245ww7nrh5xpmssmrwqcuel4

Ferroresonance in Voltage Transformer ConsideringLinear and Nonlinear Core Losses Effect

Hamid Radmanesh, Mehrdad Rostami, Jafar Khalilpour
2012 International Journal of Computer and Electrical Engineering  
Significant effect on the onset of chaos, the range of parameter values that may lead to chaos along with ferroresonance voltages has been obtained and presented.  ...  Ferroresonance is a complex electrical phenomenon, which can cause overvoltages in the electrical power system and endangers the system reliability and continuous safe operating.  ...  Ali Nasrabadi of the Shahed University, Tehran, Iran, for providing MATLAB data files for the time domain simulations, and Mrs. Leila Kharazmi for her English editing.  ... 
doi:10.7763/ijcee.2012.v4.606 fatcat:er7tdyxtmzdanieb6zl7guqnk4

Circuit Breaker Shunt Resistance Effect on Ferroresonancein Voltage Transformer Including Nonlinear Core Losses

Hamid Radmanesh, Matin Nademi, Maryam Nademi
2012 International Journal of Computer and Electrical Engineering  
Ali Nasrabadi of the Shahed University, Tehran, Iran, for providing MATLAB data files for the time domain simulations, and Mrs. Leila Kharazmi for her English editing.  ...  Significant effect on the onset of chaos, the range of parameter values that may lead to chaos along with ferroresonance overvoltages has been obtained and presented.  ...  Application of nonlinear dynamics and chaos to ferroresonance in the distribution systems can be found in [6] .  ... 
doi:10.7763/ijcee.2012.v4.597 fatcat:2jxyrhtkk5bw7ilxs7kv2d3d24

Ferroresonance suppression in power transformers using chaos theory

Hamid Radmanesh, G.B. Gharehpetian
2013 International Journal of Electrical Power & Energy Systems  
The main goal of this paper is the determination of the effect of the metal oxide varistor (MOV) on various ferroresonance modes including fundamental resonance, subharmonic and chaos mode which are generated  ...  Chaos theory is used for analyzing this effect. Also, the bifurcation, phase plan diagram and time domain simulation are used for this purpose.  ...  Usually, the ferroresonance contains a nonlinear inductance and capacitances.  ... 
doi:10.1016/j.ijepes.2012.08.028 fatcat:hkb4anumsbhdzizk5zojoaaxhm

Studying Effect of Magnetizing Curve Nonlinearity Index on the Occurring Chaotic Ferroresonance Oscillation in Autotransformers

Hamid Radmanesh, Mehrdad Rostami, Jafar Khalilpour
2011 Energy and Power Engineering  
This paper investigates the effect of iron core saturation characteristic degree on the onset of chaotic ferroresonance and duration of transient chaos in an autotransformer.  ...  Simulation results are derived by using MATLAB software and nonlinear dynamics tool such as bifurcation and phase plan diagrams.  ...  In [5, 6] is among the early investigations in applying theory of bifurcation and chaos to ferroresonance.  ... 
doi:10.4236/epe.2011.32011 fatcat:2l6bh7knqbdhvktj6oavua4ocy

Stabilizing Ferroresonance Oscillations in Voltage Transformers Using Limiter Circuit

Hamid Radmanesh, Seyed Hamid Fathi
2012 Electronics  
Bifurcation (HB) and chaos.  ...  This paper employs the multiple scales method and chaos theory for analyzing chaotic behavior of the voltage transformer (VT) with linear core loss model.  ...  Ferroresonance generates overvoltages, overcurrents and finally chaos with different frequencies in power system.  ... 
doi:10.7251/els1216145r fatcat:ukkgldjxefhzrbldwsfgcudozq

Effect of metal oxide arrester on the chaotic oscillations in the voltage transformer with nonlinear core loss model using chaos theory

Hamid Reza Abbasi, Ahmad Gholami, Seyyed Hamid Fathi, Ataollah Abbasi
2014 Chinese Physics B  
Therefore, the chaos is created and increased in the system.  ...  In this paper, controlling chaos when chaotic ferroresonant oscillations occur in a voltage transformer with nonlinear core loss model is performed.  ...  [6] [7] [8] [9] [10] The ferroresonance circuits consist of a linear capacitance and a nonlinear inductance and can lead to overvoltages, overcurrents, and chaos in a power system in wide frequency  ... 
doi:10.1088/1674-1056/23/1/018201 fatcat:gr7feregenf2hhsjesgckmticu

Ferroresonance Phenomena in Unloaded TransformersApplying MOV

Hamid Radmanesh, Matin Nademi, Maryam Nademi
2012 International Journal of Computer and Electrical Engineering  
Ali Nasrabadi of the Shahed University, Tehran, Iran, for providing MATLAB data files for the time domain simulations, and Mrs. Leila Kharazmi for her English editing.  ...  Significant effect on the onset of chaos, the range of parameter values that may lead to chaos and magnitude of ferroresonant voltages has been obtained, showed and tabulated.  ...  Fundamental theory of nonlinear dynamics and chaos can be found in [12] , [14] .  ... 
doi:10.7763/ijcee.2012.v4.599 fatcat:ubxtc2dqdbfonehseduvyralru

Analyzing Ferroresonance Phenomena in Power Transformers Including Zinc Oxide Arrester and Neutral Resistance Effect

Hamid Radmanesh, Fathi Seyed Hamid
2012 Applied Computational Intelligence and Soft Computing  
Because of the temperature dissipation of ZnO, it can withstand against overvoltage in a short period and after that ferroresonance causes ZnO failure.  ...  and periodic oscillation.  ...  The simulation results confirm that system goes to chaos and bifurcation occurs in the proposed power system. The presence of the neutral resistance causes to clamp the ferroresonance overvoltage.  ... 
doi:10.1155/2012/525494 fatcat:blrgbogjxbfnrkipvdjuw4ddjm

Effect of Metal Oxide Surge Arrester on Ferroresonance inVoltage Transformer Including Nonlinear Core Losses

Hamid Radmanesh, Mehrdad Rostami, Jafar Khalilpour
2012 International Journal of Computer and Electrical Engineering  
Significant effect on the onset of chaos, the range of parameter values that may lead to chaos along with ferroresonance overvoltages has been obtained and presented.  ...  His research interests include design and modeling of power electronic converters, drives, transient and chaos in power system apparatus.  ...  Ali Nasrabadi of the Shahed University, Tehran, Iran, for providing MATLAB data files for the time domain simulations, and Mrs. Leila Kharazmi for her English editing.  ... 
doi:10.7763/ijcee.2012.v4.598 fatcat:5w23o7tvqvf77pefanmou647mi

Effect of Metal Oxide Arrester on Chaotic Behavior of Power Transformers

Ataollah Abbasi, Mehrdad Rostami, Seyyed Hamid Fathi, Hamid R. Abbasi, Hamid Abdollahi
2010 Energy and Power Engineering  
The results reveal that the presence of the arrester has a mitigating effect on ferroresonant chaotic overvoltages. resulted bifurcation diagrams and phase plane diagrams have also been delivered.  ...  In part (1) : effect of nonlinear core on the onset of chaotic ferroresonance in a power transformer is evaluated.  ...  [7] [8] [9] are among the early investigations in applying theory of bifurcation and chaos to ferroresonance.  ... 
doi:10.4236/epe.2010.24037 fatcat:exqlxy5nibfedioaiyld6jpkuq

Chaotic ferroresonance in power transformers

S. Mozaffari
1995 IEE Proceedings - Generation Transmission and Distribution  
The newly developed techniques for analysis of nonlinear dynamical systems and chaos should now be evaluated for use with ferroresonance.  ...  The concept of transient chaos as compared with steady-state chaos is also discussed. The solution of the ferroresonant circuit is shown to be dependent on the value of its initial conditions.  ...  This thesis uses the theories of nonlinear dynamics and chaos to analyze, understand, and control ferroresonance.  ... 
doi:10.1049/ip-gtd:19951749 fatcat:3x5en6yy7zd6bdw6jpydrpslfq

Dynamic Behavior of Wind Turbine Generator Configurations during Ferroresonant Conditions

Ajibola Akinrinde, Andrew Swanson, Remy Tiako
2019 Energies  
It was observed that for most of the wind turbine configurations, a chaotic mode of ferroresonance exists for both energization and de-energization scenarios.  ...  permanent magnet synchronous generator (PMSG) under ferroresonant conditions of energization and de-energization was investigated using Simulink/MATLAB (version 2017B, MathWorks, Natick, MA, USA).  ...  chaos.  ... 
doi:10.3390/en12040639 fatcat:j3v2tds2vnhyto6tjyk3fnufum
« Previous Showing results 1 — 15 out of 66 results