ANALYSIS OF WOUND STATOR MAGNETIC GEAR USING THREE SEGMENT HALBACH ARRAY

Mohammad Amin Moqadasi; Mahmood Hoseini Ali Abadi; Hamid Radmanesh

Volume 1, Issue 1 , January 2021, , Pages 1-5

https://doi.org/10.30503/eecs.2021.96296

Abstract
  The present study discusses a new structure of single layer magnetic gear (SL-MG) with Halbach array in external rotor, which is named single layer magnetic gear with Halbach array (HSL-MG). The key point in this design is using three segment Halbach array instead of the conventional permanent magnets ...  Read More

STRUCTURES FOR HIGH TEMPERATURE SUPERCONDUCTING MAGNETIC BEARINGS

Hamed Hekmati; Mohammad Siamaki; Arsalan Hekmati

Volume 1, Issue 1 , January 2021, , Pages 6-18

https://doi.org/10.30503/eecs.2021.96297

Abstract
  As a technology, superconductivity has had a great contribution to the advancement of medical science, electronics, astronomy and transportation. With the improvements in the field of superconductivity, the discovery of new materials with better properties, commercialization of these materials, and regarding ...  Read More

PROVIDING A METHOD FOR IMPROVING THE STARTUP CONDITIONS OF INDUCTION MOTORS BASED ON CHANGING THE LOAD CHARACTERISTICS

E. Dehjoo; R. Haghmaram; A. Mosallnejad

Volume 1, Issue 1 , January 2021, , Pages 19-27

https://doi.org/10.30503/eecs.2021.96298

Abstract
  In this paper, the problem of starting an induction motor is investigated and a solution is presented. The large current and considerable torque pulsation of the starting can damage the motor and other consumers connected to the feed line, and increasing the startup time will cause more heat and damage ...  Read More

TORQUE RIPPLE REDUCTION OF NON-IDEAL PERMANENT MAGNET BRUSHLESS MOTOR BASED ON SELECTIVE TORQUE HARMONIC ELIMINATION USING ONE CYCLE CONTROL STRATEGY

Abolfazl Halvaei Niasar; Yahya Abdollahi

Volume 1, Issue 1 , January 2021, , Pages 28-37

https://doi.org/10.30503/eecs.2021.96299

Abstract
  Due to some inevitable restrictions during fabrication of permanent magnet brushless (PMBL) motors, some of them have neither sinusoidal nor trapezoidal back-EMF voltages, that we name them as non-ideal PMBL motors. Employing conventional control strategies of permanent magnet synchronous motors (PMSMs) ...  Read More

MISCONCEPTION OF TOTAL HARMONIC DISTORTION IN RESOLVERS

R. Alipour-Sarabi; Z. Nasiri-Gheidari; H. Oraee

Volume 1, Issue 1 , January 2021, , Pages 38-43

https://doi.org/10.30503/eecs.2021.96300

Abstract
  Resolvers, as magnetic position sensors, are increasingly used in motion-control systems. Due to electro-magnetic structure, they preserve more accurate and reliable operation than optical encoders in stressful conditions. Usually, to evaluate the performance of a resolver, total harmonic distortion ...  Read More

AN OBSERVER BASED BLADE-PITCH CONTROLLER FOR WIND USING FINITE SLIDING MODE IN HIGH WIND SPEED

Ali Khaksari; A. Rezazadeh; Majid Ebadifard

Volume 1, Issue 1 , January 2021, , Pages 44-50

https://doi.org/10.30503/eecs.2021.96301

Abstract
  This paper deals with the problem of designing a robust dynamic output feedback controller for the wind machine. This paper for the first time exploits the designing controller problem of the wind turbines in the presence of time varying delay and uncertain parameters. In this paper, a novel algorithm ...  Read More

High-Frequency Physics-Based Analytical Modeling of Permanent Magnet Synchronous Motor

Alireza Rahimi; Khalil Kanzi

Volume 1, Issue 2 , April 2021, , Pages 1-10

https://doi.org/10.30503/eecs.2019.110966

Abstract
  In this paper, a physics-based analytical method is proposed in order to model the frequency behavior of laminated iron-core permanent magnet synchronous motor (PMSM). The proposed model consists of frequency-dependent lumped circuit parameters representing two parts; Iron-core and stator winding. These ...  Read More

Multiple Robot motion Planning Considering shortest and safest trajectory

Zhanna Gabbassova; Davoud Sedighizadeh; Alireza Sheikhi Fini; Mostafa Seddighizadeh

Volume 1, Issue 3 , July 2021, , Pages 1-6

https://doi.org/10.30503/eecs.2020.251161.1013

Abstract
  Extending multiple robot motion planning in unknown workspaces is a interesting scope in the Robot motion planning that in this paper is considered. It is used from radiation robots sensors in order to detect their surroundings and positions of the other robots. In this article a new approach considering ...  Read More

Fast Response Units Scheduling to Provide Power System Required Flexibility under High Penetration of Wind Power Generation

hosein salmani; ali reza rezazadeh

Volume 1, Issue 4 , October 2021, , Pages 1-8

https://doi.org/10.30503/eecs.2021.255127.1020

Abstract
  In recent years, increasing of the non-dispatchable resources has posed serious challenges to day-ahead generation scheduling of the power system. Since these resources are random in nature, the issue of flexibility to cover the uncertainty and variability of those has become an important research topic. ...  Read More

Modeling, analysis and design of electromechanical systems
ON PERFORMANCE ANALYSIS OF CORELESS PERMANENT MAGNET MACHINE

Amirhossein Koushki; Zahra Nasiri Gheidari

Volume 2, Issue 2 , April 2022, , Pages 1-6

https://doi.org/10.30503/eecs.2023.397587.1039

Abstract
  Coreless Permanent Magnet (CPM) machines are increasingly used in many industrial applications, such as automotive and aerospace applications, wind turbines, medical equipment, robotics, servo drives, and so on. In coreless permanent magnet DC machines, the rotor has a coreless winding structure and ...  Read More

Modeling, analysis and design of electromechanical systems
A Robust Approach for FE-based Analysis of Electromagnetic Systems with Hysteretic Materials

Hamed Tahanian; Ahmad Darabi

Volume 2, Issue 1 , January 2022, , Pages 1-8

https://doi.org/10.30503/eecs.2023.378259.1031

Abstract
  Magnetic hysteresis affects the performance of electromagnetic devices, e.g., motors, generators, and transformers. However, due to complex, non-linear, and multi-valued nature of this phenomenon, its accurate coupling to Finite Element Analysis (FEA) of these devices has been always a challenging task. ...  Read More

Modeling, analysis and design of electromechanical systems
Flux Switching Machines Topologies - State of The Art

Hamid Ebrahimi; Hossein Torkaman; Hamid Javadi

Articles in Press, Accepted Manuscript, Available Online from 11 December 2023

https://doi.org/10.30503/eecs.2023.408541.1043

Abstract
  The flux-switching machine (FSM) stands as an innovative form of brushless doubly salient permanent magnet machinery characterized by a stator flux possessing bipolar attributes. Distinguished by excitation and concentric windings nestled within the stator and a rotor design reminiscent of switched reluctance ...  Read More

A Novel Energy Storage System Usage Based on Ultra-capacitor in Variable Speed Wind Turbines (VSWT) for Power Improvement

Mohsen Atash Ab-Parvar; Hamed Hekmati; Alireza Siadatan; Mehdi Bigdeli; Arsalan Hekmati; Mehdi Bagheri

Volume 1, Issue 3 , July 2021, , Pages 7-17

https://doi.org/10.30503/eecs.2020.252285.1017

Abstract
  Wind power as a renewable energy has the potential to become a clean energy source in almost all countries of the world but, there are lots of technical challenges that need to be addressed in advance. Wind speed variation (WSV) is one of the most important issues. Separate from its mechanical effects ...  Read More

Control of Electromechanical systems
Electric Drive Command for Green Resource Adopting AC Microgrids

Ali Abdul Razzaq Altahir

Volume 2, Issue 2 , April 2022, , Pages 7-15

https://doi.org/10.30503/eecs.2023.404121.1041

Abstract
  An electric drive controller for AC microgrids with renewable energy sources is a system that controls the flow of electricity in an alternating current (AC) microgrid. The role of distributed generation in the electricity industry has been expanding in recent years. Distributed (DGs) are small, scalable ...  Read More

Aging Comparison of the RTV and nano RTV insulator coatings due to thermal and electrical stress

monire taghvaei; nasim nayebpashaee

Volume 1, Issue 4 , October 2021, , Pages 9-16

https://doi.org/10.30503/eecs.2021.302849.1022

Abstract
  RTV silicone rubber offers excellent high and low temperature resistance as well as UV and weathering resistance and has a bright future in the aerospace and electronics industries. On the other hand, the thermal decomposition behavior of polymeric materials significantly affects their aging process ...  Read More

Modeling, analysis and design of electromechanical systems
Review of End Winding Forces Estimation in Synchronous Generators

Mehdi Aliahmadi; Alireza Ghaempanah; Javad Faiz

Volume 2, Issue 1 , January 2022, , Pages 9-28

https://doi.org/10.30503/eecs.2023.376522.1030

Abstract
  Increasing loading without comparable change in the size of synchronous generators, causes end-winding force estimation become important. Therefore, design of an appropriate support to protect windings deterioration and damages by the above mentioned forces is critical. In slot-embedded portion of coils, ...  Read More

Topological and structural review of EV fast chargers

Ali Asghar Sarabadani; reza latifi; ali reza rezazadeh

Volume 1, Issue 2 , April 2021, , Pages 11-20

https://doi.org/10.30503/eecs.2019.110971

Abstract
  The increasing growth of the technology and industry of electric propulsion, and consequently the growth of the industry of electric energy storage systems, including batteries, have raised challenges such as optimizing the charging process and storage of electric energy. One of the important factors ...  Read More

Modeling, analysis and design of electromechanical systems
Finite Element Analysis of Electrical Machines: Recent Trends and Developments

Amin Nobahari; Antti Lehikoinen

Volume 2, Issue 2 , April 2022, , Pages 16-25

https://doi.org/10.30503/eecs.2023.398206.1040

Abstract
  Finite element (FE) method, is the most popular numerical approach to low-frequency electromagnetic modeling, especially in the field of electrical machines. Although FE method is nowadays widely used by experts, still it can find widespread efforts toward additional developments that make it more applicable ...  Read More

implementing the manufacture plan and use of high-efficiency permanent magnet electric motors in evaporative coolers

Hassan Ebrahimirad

Volume 1, Issue 4 , October 2021, , Pages 17-20

https://doi.org/10.30503/eecs.2021.304616.1024

Abstract
  Nowadays, increasing energy efficiency is the economical and fastest way to generate electricity in the world. Therefore, the importance of energy saving has been considered for many years in Iran, but the allocation of subsidies to energy production sector has led to the lack of a logical and specific ...  Read More

AN ANALYTICAL PREDICTION FOR MAGNETIC FIELD DISTRIBUTION IN ONE SMPMSM BASED ON SUBDOMAIN MODEL

Seyed Reza Mortezaeei; Mahmood Hosseini Aliabadi; Shahram Javadi

Volume 1, Issue 3 , July 2021, , Pages 18-26

https://doi.org/10.30503/eecs.2020.251236.1016

Abstract
  The purpose of this paper is to present an Analytical Predict the Electromagnetic Field Density in surface mounted permanent magnet synchronous motors based on a subdomain field model. In this paper, which is one of a series of four, a 2-d analytical method for predicting field distribution in one SMPMSM ...  Read More

Position Sensor Error Analysis for PMa-SynR Motor Drive system

Hossein Azizi Moghadam; Masood Saeidi; Abolfazl Vahedi; omid Rezaei; Shervin Salehirad

Volume 1, Issue 2 , April 2021, , Pages 21-28

https://doi.org/10.30503/eecs.2020.110968

Abstract
  synchronous reluctance motors are among the most popular electric motors today, due to their relatively good features, but the important thing to consider about these motors is to calculate and estimate their rotor position, and failure to do so may cause damage in their control system. Therefore, many ...  Read More

Designing the technical specifications of the propulsion system suitable for electric bus of Tehran and selecting the pilot route

iman sadeghi

Volume 1, Issue 4 , October 2021, , Pages 21-30

https://doi.org/10.30503/eecs.2021.304806.1025

Abstract
  This paper contains an investigation about using electric buses alternatively in a BRT line in Tehran. In order to reach this purpose driving cycle of electric bus for different bus routes are simulated and studied. Also with the aim to choose the pilot route, several criteria such as, air and noise ...  Read More

Control of Electromechanical systems
CORRECTION OF FLUX ERROR IN LOW SPEED RANGE OF DTC DRIVES OF INDUCTION MACHINES

Mohsen Dashtbani; Majid Hasanzadeh; Reza Roshanfekr

Volume 2, Issue 2 , April 2022, , Pages 26-33

https://doi.org/10.30503/eecs.2023.396796.1038

Abstract
  The conventional direct torque control (DTC) method suffers a flux drop at low speeds, which is due to the long selection of zero (neutral) voltage vectors in these speed areas. Past studies with the continuous switch of direct and reverse active vectors to achieve proper flux adjustment, this procedure ...  Read More

Estimation of the dynamic parameters of a battery model under the hysteresis effect employing a hybrid algorithm of particle swarm optimization and grey wolf optimizer

Hasan Mashayekh; Alireza Rezazadeh

Volume 1, Issue 3 , July 2021, , Pages 27-33

https://doi.org/10.30503/eecs.2020.251679.1014

Abstract
  An accurate estimation of battery model parameters is essential for dynamic simulation of electric vehicles. Generally, parameterizing battery models are difficult and complex. Therefore it requires powerful estimation algorithms to overcome time-consuming and computational costs. In this paper, the ...  Read More

Research on Effective Parameters on Overvoltage and Inrush Current During Starting-up of VSC-HVDC System

Mahmudreza Changizian; abbas Shoulaie

Volume 1, Issue 2 , April 2021, , Pages 29-40

https://doi.org/10.30503/eecs.2019.110965

Abstract
  Abstract—The starting-up strategy is an important issue for voltage source convert-high voltage direct current (VSC-HVDC) system. If a VSC-HVDC system starts up without any auxiliary system or improved control system, overvoltage and inrush current will occur. This large overvoltage can cause serious ...  Read More