Modular Multilevel Converter Machine Drive using current source H-bridges

This paper proposes a Machine Drive based on a Modular Multilevel Converter. The proposed converter uses current source cells with asymmetrical IGCTs as switching devices. A control scheme to manage the input and output current and, additionally, reduce the oscillations in the inductors currents is also proposed. The resulting machine drive will exhibit high power and high dynamical performance as shown in the simulation results.