Title :
A novel and simple technique for compensation of single-phase voltage disturbances
Author :
Mirabbasi, D. ; Heidari, Mortaza
Author_Institution :
Islamic Azad Univ., Ardebil, Iran
Abstract :
In the modern industrial world, many electronic and electrical control devices are designed with the use of modern power electronics, are characterized by an extreme sensitivity on power quality variations. Voltage sag, swell or interruption in one phase of a three-phase system due to LG fault, capacitor switching or any other reason is to be mitigated immediately for proper functioning of all the equipments. A three-phase transformer connected in zigzag connected winding across a star connected three-phase load may compensate the voltage disturbances at any one phase of the load. The effect of proposed scheme investigated for two types of balanced connected in star load (RL load and motor load) is supplied by a three-phase four-wire, Dyn, 20K/380V transformer. Simulation performed by MATLAB/SIMULINK verified the validity of the proposed scheme.
Keywords :
capacitor switching; compensation; power electronics; power supply quality; transformer windings; LG fault; Matlab-Simulink; RL load; capacitor switching; electrical control devices; motor load; power electronics; power quality variations; single-phase voltage disturbance compensation; star connected three-phase load; star load; temperature 20 K; three-phase four-wire; three-phase system; three-phase transformer; voltage 380 V; voltage interruption; voltage sag; voltage swell; zigzag connected winding;
Conference_Titel :
Electrical Machines and Power Electronics and 2011 Electromotion Joint Conference (ACEMP), 2011 International Aegean Conference on
Conference_Location :
Istanbul
Print_ISBN :
978-1-4673-5004-4
Electronic_ISBN :
978-1-4673-5002-0
DOI :
10.1109/ACEMP.2011.6490648
