Control
Robust Sliding Mode-based UPQC for Transient Conditions in Weak/ Islanded Networks

Omid Moradi; Saeed Abazari; Nima Mahdian

Volume 4, Issue 3 , August 2021, , Pages 267-276

http://dx.doi.org/10.22111/ieco.2020.35963.1308

Abstract
  This paper proposes a nonlinear model by an optimal stabilizing controller for weak/islanded grids using a unified power quality conditioner (UPQC). The UPQC can be employed to stabilize a grid-tie inverter (GTI) or a synchronous generator (SG) with minimum control effort. The idea that GTI behavior ...  Read More

Power systems
Dynamic Stability Improvement of Power System with Simultaneous and Coordinated Control of DFIG and UPFC using LMI

Masoud Maleki Rizi; Saeed Abazari; Nima Mahdian

Volume 4, Issue 3 , August 2021, , Pages 341-353

http://dx.doi.org/10.22111/ieco.2021.37604.1340

Abstract
  This paper presents enhancement of power system dynamic stability while equipped with both unified power flow controller and doubly fed induction generator by using LMI technique. We have used all UPFC (Unified Power Flow Controller) main basic PI controllers and its POD (Power Oscillation Damping) supplementary ...  Read More