Paper Info
Title
Effect of Phase-Shift Angle on Delta-Connected Autotransformer Applied to 12-Pulse Rectifier
Abstract
The delta-connected autotransformer with π/6 phase-shift angle is widely used in the multipulse rectifier when the output voltage of the autotransformer is approximately equal to its input voltage. If its output voltage is slightly greater than its input voltage, the equivalent kilovoltampere (kVA) rating of the autotransformer increases rapidly, and each core limb of the autotransformer has five windings. The increase in winding number will increase the asymmetry and manufacture difficulty of the autotransformer. Therefore, the autotransformer with π/6 phase-shift angle is not suitable in the boost voltage application. This paper analyzes the effect of phase-shift angle of the autotransformer with three windings in each core limb on the input line current, output voltage, and equivalent kVA rating and proposes a new phase-shift angle. The equivalent kVA rating of the delta-connected autotransformer with the new phase-shift angle is slightly greater than that of the autotransformer with π/6 phase-shift angle under the same turn ratio, but the autotransformer with the new phase-shift angle has three windings in each core limb and is propitious to design and manufacture. Some simulation and experiment are carried out to verify the theoretical analysis.
Year
DOI
Venue
2015
10.1109/TIE.2015.2405058
Industrial Electronics, IEEE Transactions  
Keywords
Field
DocType
12-pulse rectifier,Delta-connected autotransformer,THD,equivalent kVA rating,phase-shift angle,ripple coefficient
Rectifier,Control theory,Voltage,Autotransformer,Pulse (signal processing),Electromagnetic coil,Harmonic analysis,Engineering,Electricity generation,Phase (waves)
Journal
Volume
Issue
ISSN
PP
99
0278-0046
Citations 
PageRank 
References 
2
0.40
8
Authors
4
Name
Order
Citations
PageRank
Fangang Meng141.81
Gao, L.220.74
Simon X. Yang31029124.34
Yang, W.431.43