Title :
Active front-end of electric drive under unbalanced voltage supply
Author :
Chomat, M. ; Schreier, L. ; Bendl, J.
Author_Institution :
Inst. of Thermomech., ASCR, v.v.i., Czech Republic
Abstract :
Voltage-unbalance conditions that can arise in the power network may affect operation of electric drives in a negative way. The cause of the unbalance may be a failure in the network or presence of an unbalanced load in the vicinity of the affected drive. Unsymmetrical system of voltages at the input of a voltage source inverter gives rise to the pulsations in the DC link voltage when no suitable countermeasures are taken. The effect of the unbalanced voltage supply on the system has been investigated. The influence of some circuit parameters on operation of the system was also dealt with.
Keywords :
AC-DC power convertors; electric drives; power supply quality; rectifying circuits; voltage control; DC link voltage; circuit parameters; electric drive; network failure; power network; unbalanced voltage supply; unsymmetrical system; voltage source inverter; Automation; Circuits; DC-DC power converters; Numerical simulation; Power electronics; Pulse modulation; Pulse width modulation inverters; Space vector pulse width modulation; Thermomechanical processes; Voltage; DC-link voltage pulsations; Pulse-width modulation; Unbalanced voltage supply;
Conference_Titel :
Power Electronics Electrical Drives Automation and Motion (SPEEDAM), 2010 International Symposium on
Conference_Location :
Pisa
Print_ISBN :
978-1-4244-4986-6
Electronic_ISBN :
978-1-4244-7919-1
DOI :
10.1109/SPEEDAM.2010.5545072
