Name
Title | ||
|---|---|---|
Digital Implementation of Selective Harmonic Elimination Techniques in Modular Current Source Rectifiers |
Abstract | ||
|---|---|---|
Modular current source converters (MCSCs) have been proposed as an alternative method for increasing the power range of medium voltage PWM AC drives. MCSCs are built by stacking parallel current source converters. Two advantages that make MCSCs attractive are: (a) extended current/voltage ratings beyond the device ratings and (b) simplicity in balancing the DC link current in each module. This can be accomplished using two optimized modulating patterns that have been proposed for such topologies: (a) multilevel selective harmonic elimination (MSHE) and (b) displaced selective harmonic elimination (DSHE). Both techniques are based on SHE patterns but there are slight differences in their digital implementation due to the way they generate the harmonic cancellation. Furthermore, when these techniques are used in the rectifier stage, it is reported that MSHE and DSHE do not eliminate all the unwanted harmonics due to practical issues such as changes in the modulating indexes to control the DC link currents. This work compares the operation of DSHE and MSHE when used in rectifiers of an MCSC in terms of execution time, robustness to poor sampling frequency, and quality of harmonic profiles on AC input currents under different operating conditions. Experimental results are presented to validate the theoretical considerations. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1109/TII.2012.2210232 | Industrial Informatics, IEEE Transactions |
Keywords | Field | DocType |
AC motor drives,harmonics,power convertors,rectifiers,DC link current,DC link currents,DSHE,MCSC,MSHE,digital implementation,displaced selective harmonic elimination,extended current-voltage ratings,harmonic cancellation,medium voltage PWM AC drives,modular current source converters,modular current source rectifiers,modulating patterns,multilevel selective harmonic elimination,parallel current source converters,rectifier stage,sampling frequency,selective harmonic elimination techniques,AC drives,PWM,digital control,selective harmonic elimination | Rectifier,Current source,Computer science,Voltage,Sampling (signal processing),Pulse-width modulation,Harmonic,Electronic engineering,Control engineering,Robustness (computer science),Harmonics | Journal |
Volume | Issue | ISSN |
9 | 2 | 1551-3203 |
Citations | PageRank | References |
10 | 0.74 | 6 |
Authors | ||
7 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Johan I. Guzman | 1 | 32 | 6.56 |
| Pedro E. Melin | 2 | 32 | 3.35 |
| José R. Espinoza | 3 | 508 | 69.98 |
| Luis Moran | 4 | 118 | 46.64 |
| Carlos R. Baier | 5 | 45 | 9.77 |
| Javier A. Muñoz | 6 | 62 | 14.45 |
| Gonzalo A. Guinez | 7 | 10 | 0.74 |