On power quality control center for providing unbundled power quality services

Abstract

Using Power Quality Control Center (PQCC) to provide unbundled power quality services is investigated in this thesis. It begins with a detailed analysis of the PQCC by developing its mathematical model. Then using the PQCC to mitigate upstream voltage sag effects on sensitive loads is examined. Next, a more realistic scheme of the PQCC is proposed under both steady-state and upstream voltage-sag state. Finally, the PQCC voltage sag ride-through capability is further improved by introducing a Series Compensator (SC).