Research Articles Control
Designing Indirect Adaptive Multiple Controller for LTI Systems with Large Time Varying and Unknown Delay in Control Input Based on Online Estimation of Delay by Kalman filtering

hadi chahkandi nejad; Mohsen Farshad; Ramazan Havangi

Volume 4, Issue 1 , January 2021, Pages 1-11

https://doi.org/10.22111/ieco.2020.32975.1242

Abstract
  In this study, an adaptive controller for LTI systems with unknown and time varying input time delay is presented with the purpose of tracking. Due to the large area considered for time delay variations, the structure of the proposed controller is considered to be in form of Multiple Model Adaptive Control ...  Read More

Research Articles Control
Adaptive Robust Tracking Control Based on Backstepping Method for Uncertain Robotic Manipulators Including Motor Dynamics

javad keighobadi; Mohammad mehdi Fateh

Volume 4, Issue 1 , January 2021, Pages 13-22

https://doi.org/10.22111/ieco.2020.31792.1213

Abstract
  Recent research on the backstepping control of robotic systems has motivated us to design a robust backstepping voltage-based controller with computational simplicity and ease of implementation. In this paper, an adaptive robust tracking controller based on backstepping method (ARTB) is presented for ...  Read More

Research Articles Control
Analyzing the Advantage of Combination of Density Forecasts in Tehran Stock Exchange

S.Raheleh Shahrokhi; Hamid Khaloozadeh; HamidReza Momeni

Volume 4, Issue 1 , January 2021, Pages 23-31

https://doi.org/10.22111/ieco.2020.32870.1237

Abstract
  Today, stock market plays a key role in the economy of any country and is considered as one of the growth indicators of any economy. Gaining the skills of gathering and analyzing data simultaneously, as well as using this knowledge in economic investigations, make time and precision factors to be the ...  Read More

Research Articles Control
Multi-objective optimization and online control of switched reluctance generator for wind power application

Hojjat Hajiabadi; Mohsen Farshad; MohammadAli Shamsinejad

Volume 4, Issue 1 , January 2021, Pages 33-45

https://doi.org/10.22111/ieco.2020.32687.1234

Abstract
  Fossil fuel combustion in power plants is the world’s most significant threat to people’s health and the environment. Recently, wind power, as a clean, sustainable and renewable source of energy, has attracted many researchers. The present paper studies how to maximize the extraction of wind ...  Read More

Research Articles Power systems
A New Method for Power Quality Events Detection and Classification using Discrete Wavelet Transform and Correlation Coefficients

Navid Ghaffarzadeh

Volume 4, Issue 1 , January 2021, Pages 47-57

https://doi.org/10.22111/ieco.2020.33660.1257

Abstract
  In this paper a novel and simple approach for detection and classification of wide variety range of power quality(PQ) events based on discrete wavelet transform (DWT) and correlation coefficient is presented. For this purpose, two new indices is proposed and by comparing the values of the correlation ...  Read More

Research Articles Communication
RF Power Harvester Using a Broadband Monopole Antenna and a Quad-Band Rectifier

Fatemeh Geran; Nasim Mirzababaee; Shahram Mohanna

Volume 4, Issue 1 , January 2021, Pages 59-65

https://doi.org/10.22111/ieco.2020.34558.1280

Abstract
  An RF energy harvester (rectenna) consists of a broadband monopole antenna and a quad-band rectifying circuit is designed to harvest EM wave energy in the frequency range of 1.412 GHz to 8.56 GHz, which covers GSM-1800, LTE-band, Wimax, Wi-Fi, and WLAN. The initial component of the rectenna is an antenna ...  Read More

Research Articles Industrial Electronics
Dynamic Improvement of DC Microgrids with CPLs Using Virtual Inertia Concept

Mehran Jami; Qobad Shafiee; Hassan Bevrani

Volume 4, Issue 1 , January 2021, Pages 67-76

https://doi.org/10.22111/ieco.2020.33152.1245

Abstract
  In this paper, a virtual inertia control strategy based on linear feedback is presented that improves dynamic behavior of islanded dc microgrids interfaced with constant power loads (CPLs). In order to solve the stability challenges caused by low inertia and CPLs, the proposed control scheme is composed ...  Read More

Research Articles Industrial Electronics
Design and Analysis of a New Topology of Rotor Magnets in Brushless DC Motors to Reduce Cogging Torque

Seyed Reza Mousavi-Aghdam; Amin Kholosi

Volume 4, Issue 1 , January 2021, Pages 77-86

https://doi.org/10.22111/ieco.2020.34565.1282

Abstract
  This paper presents a novel topology of permanent magnet brushless DC motors. Brushless DC motors usually experience torque ripple mainly caused by cogging torque. In the proposed motor, the whole structure of the rotor’spermanent magnets hasbeen changed so that the cogging torque is considerably ...  Read More

Research Articles Control
Cooperative distributed constrained model predictive control for uncertain nonlinear large scale systems

Ahmad Mirzaei; amin ramezani

Volume 4, Issue 1 , January 2021, Pages 87-98

https://doi.org/10.22111/ieco.2020.34092.1270

Abstract
  In this paper two linear constrained cooperative distributed extended dynamic matrix control (CDEDMC) and adaptive generalized predictive control (CDGPC) are proposed to control the uncertain nonlinear large-scale systems. In these approaches, a proposed cooperative optimization is employed which improves ...  Read More

Research Articles Industrial Electronics
A Controllable Bidirectional Rectifier for EV Home Charging Station with G2H/G2VH/V2H/V2G Functions

Homayon Soltani Gohari; Karim Abbaszadeh; Jafar Gholami Gorji

Volume 4, Issue 1 , January 2021, Pages 99-113

https://doi.org/10.22111/ieco.2020.34645.1284

Abstract
  Finding effective solutions to enhance the process of electric vehicles’ charging is the main subject of numerous studies. In this paper, a novel bidirectional multiport rectifier has been presented which can be used as a wall-box converter that is installed in the parking lot of smart buildings ...  Read More

Research Articles Power systems
An Investigation of a New Method to Detect Lossess of Excitation of Synchronous Generators

Milad Niaz Azari; Reza Fathi shoob

Volume 4, Issue 1 , January 2021, Pages 115-126

https://doi.org/10.22111/ieco.2020.34337.1276

Abstract
  Synchronous generators are one of the most important components of power systems. Problems a generator may face are internal faults, system disturbances, or operational hazards. The operation of a generator may easily be affected by faults within the machine itself as opposed to external disturbances ...  Read More

Research Articles Optimization
Coordinated operation of Wind Farms, Cascaded Hydro, Photo-voltaic and Pump-storage Units by WT-ANN-ICA Prediction Method

Ehsan Jafari

Volume 4, Issue 1 , January 2021, Pages 127-139

https://doi.org/10.22111/ieco.2020.31109.1198

Abstract
  a new algorithm is presented to reduce the uncertainty effects of wind farms power generation (WFPG) and photo-voltaic generation (PVG) in both day-ahead energy and ancillary services markets. Firstly, this research tries to predict the uncertainty of short-term WFPG with acceptable accuracy. Indeed, ...  Read More