Question

Drawback of the individual phase control scheme used for firing angle control in a hvdc link

Answer 1

The drawbacks of the individual phase control scheme used for firing angle control in a hvdc link are as follows:-

• The individual phase control scheme has a very  less output voltage .
• The phase control scheme has a very less control power and the power of output is also too low.
• There is a lot of problem caused  such as the harmonic  instability.
• There are also problems caused such as the  voltage instability.