DocumentCode :
1122825
Title :
A New Control Philosophy for a Unified Power Quality Conditioner (UPQC) to Coordinate Load-Reactive Power Demand Between Shunt and Series Inverters
Author :
Khadkikar, Vinod ; Chandra, Ambrish
Author_Institution :
Dept. of Electr. Eng., Ecole de Technol. Super., Montreal, QC
Volume :
23
Issue :
4
fYear :
2008
Firstpage :
2522
Lastpage :
2534
Abstract :
This paper presents a novel philosophy to compensate the load-reactive power demand through a three-phase unified power quality conditioner (UPQC). Most of the UPQC-based applications show the dependency on shunt inverter for load-reactive power compensation, whereas the series inverter is always looked as controlled voltage source to handle all voltage-related problems. This paper proposes a new functionality of UPQC in which both the shunt and series APFs supply the load-reactive power demand. This feature not only helps to share the load-reactive power demand, but also helps to reduce the shunt APF rating, and hence, the overall cost of UPQC. This results in better utilization of the existing series inverter. The theory and complete mathematical analysis termed as ldquopower angle control (PAC)rdquo is presented. The simulation results based on MATLAB/Simulink are discussed in detail to support the concept developed in the paper. The proposed approach is also validated through experimental study.
Keywords :
invertors; power supply quality; power system control; reactive power control; Matlab; Simulink; active power filter; control philosophy; load-reactive power demand; power angle control; series inverter; shunt inverter; unified power quality conditioner; Active power filter (APF); power angle control; power quality; reactive power compensation; unified power quality conditioner (UPQC);
fLanguage :
English
Journal_Title :
Power Delivery, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8977
Type :
jour
DOI :
10.1109/TPWRD.2008.921146
Filename :
4483694
Link To Document :
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