TY - GEN
T1 - High level performance models of double-star MMC converters
AU - Pereira, Heverton A.
AU - Kontos, Epameinondas
AU - Teodorescu, Remus
PY - 2017/7/7
Y1 - 2017/7/7
N2 - The development of Modular Multilevel Converter (MMC) technology is a breakthrough in the field of High and Medium Voltage applications. In general, simulations are needed to study a new application and to analyze the impact of a new converter in power systems. Thus, accurate models able to represent the dynamics present in the converter are required. This work aims to compare two MMC average models and one average model with three modulation strategies in order to propose high level models, able to represent the MMC dynamics, such as the injected active and reactive power, and the SMs capacitor voltages, without the necessity of switching models. A case study is presented considering a Double Star (DS) MMC, connected in a distribution system during an unbalanced voltage sag. The results shows that considering MMC average models only the steady state can be represented. On the other hand, when the modulation techniques are considered together with the MMC average models, it is possible to represent the capacitor voltage ripples and the grid current ripples increasing slightly the necessary processing time.
AB - The development of Modular Multilevel Converter (MMC) technology is a breakthrough in the field of High and Medium Voltage applications. In general, simulations are needed to study a new application and to analyze the impact of a new converter in power systems. Thus, accurate models able to represent the dynamics present in the converter are required. This work aims to compare two MMC average models and one average model with three modulation strategies in order to propose high level models, able to represent the MMC dynamics, such as the injected active and reactive power, and the SMs capacitor voltages, without the necessity of switching models. A case study is presented considering a Double Star (DS) MMC, connected in a distribution system during an unbalanced voltage sag. The results shows that considering MMC average models only the steady state can be represented. On the other hand, when the modulation techniques are considered together with the MMC average models, it is possible to represent the capacitor voltage ripples and the grid current ripples increasing slightly the necessary processing time.
UR - http://www.scopus.com/inward/record.url?scp=85027878758&partnerID=8YFLogxK
U2 - 10.1109/PEDG.2017.7972559
DO - 10.1109/PEDG.2017.7972559
M3 - Article in proceeding
AN - SCOPUS:85027878758
T3 - IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG)
BT - 2017 IEEE 8th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2017
PB - IEEE
T2 - 8th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2017
Y2 - 17 April 2017 through 20 April 2017
ER -