Base station power conversion to direct current

How is the active power flowing through AC and DC substations determined?

The active power flowing via AC and DC substations in the HVDC system is determined using Eqs. (14) and (15) correspondingly. The HVDC system, seen in Fig. 1, consists of an AC substation at the start of the DC transmission line and a DC substation at the conclusion of the line.

What is the difference between AC and DC substation?

The AC substation is equipped with an AC to DC converter, whereas the DC substation has a DC to AC converter. Thus, the active power of each substation can be determined by utilizing the active power flowing over the DC transmission line, as expressed in Eqs. (14) and (15).

Are AC and DC substations a decision-making or independent variable?

The paper considers the reactive power of AC and DC substations in the HVDC system as a decision-making or independent variable. However, their active power is a dependent variable determined by relations (14) and (15). The Eq. (25) is true for several types of production units 16, 17.

What is a 3G base station converter?

In a 3G Base Station application, two converters are used to provide the +27V distribution bus voltage during normal conditions and power outages.