MODULAR MULTI-LEVEL FLEXIBLE DIRECT-CURRENT TOPOLOGY CIRCUIT SUITABLE FOR FAULT RIDE-THROUGH

摘要

A modular multi-level flexible direct-current topology circuit suitable for fault ride-through, comprising a module cascading circuit, a voltage conversion circuit and a compensation circuit, wherein after being connected to the voltage conversion circuit in parallel, the module cascading circuit is connected to the compensation circuit in series. The direct-current topology circuit can achieve alternating-current and direct-current fault ride-through simply and effectively, thereby being suitable for application in the field of high-voltage high-capacity direct-current overhead lines.