Question

In HVDC transmission lines

(a) both the stations operate as an inverter

(b) both the stations operate as a converter

(c) one acts as a converter and other as an inverter

(d) depends upon the type of the load

The question was posed to me in an international level competition.

Question is from Applications of Power Electronics-2 in section Applications, Cycloconverters and  Miscellaneous of Power Electronics

Answer 1

Right choice is (c) one acts as a converter and other as an inverter

For explanation I would say: The supply side station is the converting station, power is transmitted in dc then again converted back to ac at the inverting or receiving station further which it is distributed in ac to houses.