Table 4 The comparison between different types of HCBs
From: Circuit breakers in HVDC systems: state-of-the-art review and future trends
Method | Main advantages | Main disadvantages | Refs. |
|---|---|---|---|
HCB based on natural commutation | Lower conduction losses Simple and low complexity Low cost Mature technology | Not suitable for high voltages Arcing hazard Commutation failure in higher voltages | |
HCB based on LCS | Arcless commutation Suitable for high voltages applications High reliability Fast in reclosing | High equipment cost, especially in bidirectional scheme Higher conduction losses Liquid cooling system is required High system complexity Full-controlled semiconductor devices is required | |
HCB based on CCDC | Low cost Low operation losses Free maintenance Suitable for higher voltages Low pre-charged voltage of capacitor | Arcing hazard Weak in reclosing action Has high constraints in designing the auxiliary circuit Difficulty in breaking low currents |