Abstract
Language | English |
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Pages | 618–629 |
Number of pages | 12 |
Journal | International Journal of Electrical Power and Energy Systems |
Volume | 99 |
Early online date | 20 Feb 2018 |
DOIs | |
Publication status | Published - 31 Jul 2018 |
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Keywords
- HVDC
- power losses
- power quality
- converter modelling
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Steady-state performance of state-of-the-art modular multilevel and alternate arm converters with DC fault-blocking capability. / Vozikis, D.; Adam, G.P.; Rault, P.; Tzelepis, D.; Holliday, D.; Finney, S.
In: International Journal of Electrical Power and Energy Systems, Vol. 99, 31.07.2018, p. 618–629.Research output: Contribution to journal › Article
TY - JOUR
T1 - Steady-state performance of state-of-the-art modular multilevel and alternate arm converters with DC fault-blocking capability
AU - Vozikis, D.
AU - Adam, G.P.
AU - Rault, P.
AU - Tzelepis, D.
AU - Holliday, D.
AU - Finney, S.
PY - 2018/7/31
Y1 - 2018/7/31
N2 - This paper presents a comparison of the steady-state behaviour of four state-of-the-art HVDC converters with DC fault-blocking capability, based on the modular multilevel and alternate arm converter topologies. AC and DC power quality, and semiconductor losses are compared, whilst considering different operating conditions and design parameters, such as the number of cells and component sizing. Such comparative studies have been performed using high-fidelity converter models which include detailed representation of the control systems, and of the converter thermal circuit. The main findings of this comprehensive comparison reveal that, the mixed cell modular converter offers the best design trade-off in terms of power losses and quality, and control range. Moreover, it has been established that the modular converter with a reduced number of cells per arm and with each cell rated at high voltage (i.e. 10-20 kV), tends to exhibit higher switching losses and relatively poor power quality at the DC side.
AB - This paper presents a comparison of the steady-state behaviour of four state-of-the-art HVDC converters with DC fault-blocking capability, based on the modular multilevel and alternate arm converter topologies. AC and DC power quality, and semiconductor losses are compared, whilst considering different operating conditions and design parameters, such as the number of cells and component sizing. Such comparative studies have been performed using high-fidelity converter models which include detailed representation of the control systems, and of the converter thermal circuit. The main findings of this comprehensive comparison reveal that, the mixed cell modular converter offers the best design trade-off in terms of power losses and quality, and control range. Moreover, it has been established that the modular converter with a reduced number of cells per arm and with each cell rated at high voltage (i.e. 10-20 kV), tends to exhibit higher switching losses and relatively poor power quality at the DC side.
KW - HVDC
KW - power losses
KW - power quality
KW - converter modelling
UR - https://www.sciencedirect.com/science/article/pii/S0142061517312024
U2 - 10.1016/j.ijepes.2018.01.054
DO - 10.1016/j.ijepes.2018.01.054
M3 - Article
VL - 99
SP - 618
EP - 629
JO - Electrical Power and Energy Systems
T2 - Electrical Power and Energy Systems
JF - Electrical Power and Energy Systems
SN - 0142-0615
ER -