Research Articles Control
Two-Degree-of-Freedom Control Scheme for Robust Centralized PI/PID Controller Design Using Constrained Optimization

Saeed Tavakoli; Amir Afroomand

Volume 1, Issue 1 , June 2018, Pages 1-8

https://doi.org/10.22111/ieco.2018.24006.1007

Abstract
  For a two-input two-output distillation column with heavy interactions and long dead times, a two-by-two PI/PID controller is designed. The design objectives are good setpoint regulation and appropriate load disturbance rejection. The constraints are on degree of robust stability, control effort as well ...  Read More

Research Articles Power systems
Risk-Averse Pre-Extreme Weather Events Self-Scheduling of a Wind Power Plant: A Hybrid Possibilistic-Scenario Model

Hooman Khaloie; Amir Abdollahi; Masoud Rashidinejad

Volume 1, Issue 1 , June 2018, Pages 9-18

https://doi.org/10.22111/ieco.2018.24149.1010

Abstract
  This paper develops a new possibilistic-scenario model for a wind power plant to determine its optimal self-scheduling (SS) in the presence of high-impact low-probability events uncertainty. Nowadays, in the context of the power system, examining the effects of extreme weather events in the category ...  Read More

Research Articles Power systems
Optimal Planning of Energy Storage Systems using Symbiotic Organisms Search Algorithm

Reza Safipour; Mahmoud Oukati Sadegh

Volume 1, Issue 1 , June 2018, Pages 19-26

https://doi.org/10.22111/ieco.2018.23950.1004

Abstract
  Energy storage systems, along with many capabilities in the grid, are costly technologies. Therefore, their economic issues should be also considered while they are used in the grid. In this paper, a method has been proposed that can be used to determine the location, power, and capacity of the energy ...  Read More

Research Articles Optimization
Simultaneous Optimal placement and sizing of distributed generation resources and shunt capacitors in radial distribution systems using Crow Search Algorithm

Hassan Barati; Mohsen Shahsavari

Volume 1, Issue 1 , June 2018, Pages 27-40

https://doi.org/10.22111/ieco.2018.24426.1028

Abstract
  The application of distributed generation resources and capacitor banks is increasing due to the distribution networks extension and also power demand growth. Determining the installation location and the capacity are two important and effective factors on the network power loss and the network performance ...  Read More

Research Articles Power systems
Optimal allocation and sizing of dynamic VAR support to improve short-term voltage stability considering wind farm and dynamic load model

Parnian Fakhrooeian; mehrdad Abedi; peyman karimyan

Volume 1, Issue 1 , June 2018, Pages 41-51

https://doi.org/10.22111/ieco.2018.24388.1024

Abstract
  Nowadays short-term voltage instability is a major threat for power system reliability and stability owing to the increasing proportion of renewable energy sources such as solar and wind power, induction motor loads, HVDC links and etc. The aim of this paper is to determine the optimal location and size ...  Read More

Research Articles Power systems
Optimal Control of Islanded Micro grid Using Particle Swarm Optimization Algorithm

Mehrdad Ahmadi Kamarposhti

Volume 1, Issue 1 , June 2018, Pages 53-60

https://doi.org/10.22111/ieco.2018.24354.1022

Abstract
  Microgrid is defined as a controllable unit which consists of Distributed Generations (DG), loads, energy storages and control devices. Microgrid has two operation modes including grid connected mode and islanding mode. In grid connected mode, voltage and frequency of microgrid is controlled by main ...  Read More

Research Articles Industrial Electronics
Adaptive Gain Scheduling Control of Doubly Fed Induction Generator Based Wind Turbines to Improve Fault Ride Through Performance

Ahmad Khajeh; Zahra Shabani

Volume 1, Issue 1 , June 2018, Pages 61-70

https://doi.org/10.22111/ieco.2018.24173.1012

Abstract
  The Doubly-Fed Induction Generators (DFIG) based Wind Turbines (WT) are widely used in WTs connected to power systems. Traditionally the back-to-back converters are used in order to control the DFIG. In this paper, an Indirect Matrix Converter (IMC) is utilized. Compared with back-to-back converters, ...  Read More

Research Articles Industrial Electronics
Torque Ripple Minimization in SRM Based on Advanced Torque Sharing Function Modified by Genetic Algorithm Combined with Fuzzy PSO

Hassan Moradi CheshmehBeigi; Alireza Mohamadi

Volume 1, Issue 1 , June 2018, Pages 71-80

https://doi.org/10.22111/ieco.2018.24302.1016

Abstract
  This paper presents a new and improved Torque Sharing Function (TSF) to minimize torque ripple of Switched Reluctance Motor (SRM). This approach combined of three steps. At first step, Genetic Algorithm has been used to define the best Turn-on and Turn-off angel of phase current. At second step, a fuzzy ...  Read More