A modular multi-level converter and method of controlling a voltage balancing in the modular multi-level converter

摘要

The voltage balancing control method of the modular multi-level converter receives status information for each of the n submodules included in the arm module, groups the n submodules into m submodule groups, and Receive first status information of each submodule included in the first submodule group among the m submodule groups in the status information, and receive the first status information of the n submodules prestored in the memory. Receive second state information for each submodule not included, control switching of the submodule using the first state information and the second state information, and update the first state information to the memory.