Research Article
A Hybrid MMC Topology with dc Fault Ride-Through Capability for MTDC Transmission System
Table 2
Switching mode of SMs under different output states.
| | Number of SMs switched | Number of HBSMs switched in MCSM | Output voltage | | Upper bridge | Lower bridge | Upper bridge | Lower bridge |
| | 2 | 2 | 1 | 1 | 0 | | 2 | 2 | 0 | 2 | | | 1 | 3 | 2 | 0 | | | 1 | 3 | 1 | 1 | | | 1 | 3 | 0 | 2 | | | 0 | 4 | 2 | 0 | | | 0 | 4 | 1 | 1 | | | 0 | 4 | 0 | 2 | |
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