Transient analysis of a modular multilevel converter with coupled arm inductors
Résumé
The influence of the coupling of the arm inductors of a modular multilevel converter has been investigated through transient simulations. In particular, positive, negative and zero coupling coefficient were considered for both steady-state and transient operating conditions. The effect of the coupling on the transient response, the capacitor voltage ripple, the circulating current, the DC short-circuit current and the switch power losses has been closely examined. The possibility to reduce either the circulating current or the DC short-circuit current has been demonstrated, opening the door to improved performances of modular multilevel converter with only minor modifications
Mots clés
transient analysis
modular multilevel converter
coupled arm inductors
transient simulations
positive coupling coefficient
negative coupling coefficient
zero coupling coefficient
transient operating conditions
transient response
circulating current
DC short-circuit current
steady-state conditions
switch power losses
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Transient_analysis_MMC_coupled_arm_inductors_APEC18_DZONLAGA_20171122.pdf (2.58 Mo)
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