A new modular multilevel converter for medium voltage high power oil & gas motor drive applications

This paper presents the first commercially available water-cooled MV motor drive based on the Modular Multilevel Topology (M2C). The motor drive specific features and HW are described. Measurement results from a 12 MW back-to-back test is included, e.g. operation at low motor frequencies down to zero speed at high torque.

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