低频交流输电系统中模块化多电平变换器的工作点优化控制策略

For the internal control of MMC topologies, degrees of freedom (DOF) that can influence both the transient and steady-state performance are used. Several operation modes, each with a specific selection of DOF, can be used to reduce either the branch energy variation, as an indicator of the required module capacitance, or the branch current RMS value, as an indicator of the branch losses. In this a...