Back to Back HVDC is practically used to achieve which of the below mentioned objectives:
- Interconnect two asynchronous AC systems
- Stabilization of AC systems
- For reducing short circuit currents
- All of these
Correct answer: 4. All of these
Back to Back HVDC is practically used for interconnecting two asynchronous AC systems. The essential feature of an HVDC back-to-back station is that there are no overhead lines or cables that are separating the rectifier and the inverter. Thus in turn enables the transmission electrical losses on the DC side to be neglected.