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High-speed models of facilities with AC generators and modular multilevel converters have been developed by using the methodology of system modeling by interconnected subsystems. The method of facility separation on parts by introducing in circuits virtual voltage sources has been implemented. Analysis of operation modes of considered systems was completed. Fast response of models was validated.
Models of the modular multilevel voltage inverter (MMI) were developed. A quantity of series half-bridge transistor cells with capacitors in each arm is arbitrary. Modeling was implemented in MatLab and in the environment of in-house design ComSim. In ComSim the model was developed by the methodology of system modeling by interconnected subsystems, which allowed small machine time losses for calculations.
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