TY - JOUR
T1 - High Order Voltage and Current Harmonic Mitigation Using the Modular Multilevel Converter STATCOM
AU - Kontos, Epameinondas
AU - Tsolaridis, Georgios
AU - Teodorescu, Remus
AU - Bauer, Pavol
PY - 2017
Y1 - 2017
N2 - Due to the increase of power electronic-based loads, the maintenance of high power quality poses a challenge in modern power systems. To limit the total harmonic distortion in the line voltage and currents at the point of the common coupling (PCC), active power filters are commonly employed. This paper investigates the use of the multilevel modular converter (MMC) for harmonics mitigation due to its high bandwidth compared with conventional converters. A selective harmonics detection method and a harmonics controller are implemented, while the output current controller of the MMC is tuned to selectively inject the necessary harmonic currents. Unlike previous studies, focus is laid on the experimental verification of the active filtering capability of the MMC. For this reason an MMC-based double-star STATCOM is developed and tested for two representative case studies, i.e., for grid currents and PCC voltage harmonics. The results verify the capability of the MMC to mitigate harmonics up to the thirteenth order, while maintaining a low effective switching frequency and thus, low switching losses.
AB - Due to the increase of power electronic-based loads, the maintenance of high power quality poses a challenge in modern power systems. To limit the total harmonic distortion in the line voltage and currents at the point of the common coupling (PCC), active power filters are commonly employed. This paper investigates the use of the multilevel modular converter (MMC) for harmonics mitigation due to its high bandwidth compared with conventional converters. A selective harmonics detection method and a harmonics controller are implemented, while the output current controller of the MMC is tuned to selectively inject the necessary harmonic currents. Unlike previous studies, focus is laid on the experimental verification of the active filtering capability of the MMC. For this reason an MMC-based double-star STATCOM is developed and tested for two representative case studies, i.e., for grid currents and PCC voltage harmonics. The results verify the capability of the MMC to mitigate harmonics up to the thirteenth order, while maintaining a low effective switching frequency and thus, low switching losses.
KW - Active power filters
KW - harmonics
KW - MMC
KW - STATCOM
UR - http://resolver.tudelft.nl/uuid:0e8b96fd-d80b-4ba3-b669-f12d09d59815
UR - http://www.scopus.com/inward/record.url?scp=85029188260&partnerID=8YFLogxK
U2 - 10.1109/ACCESS.2017.2749119
DO - 10.1109/ACCESS.2017.2749119
M3 - Article
AN - SCOPUS:85029188260
SN - 2169-3536
VL - 5
SP - 16684
EP - 16692
JO - IEEE Access
JF - IEEE Access
M1 - 8025588
ER -