Fault Handling Methods and Comparison for Different DC Breaker Topologies and MMC Topologies of the HVDC System

Table 1

Number of semiconductor devices in different HVDC breaker topologies.

	All-solid HVDC breaker		Resonant HVDC breaker		Hybrid HVDC breaker
	1st type	2nd type	1st type	2nd type
IGBTs	300	0	0	1200	300
Diodes	300	600	1200	600	0
Thyristor	0	600	300	600	0