This International Standard applies to all line-commutated high-voltage direct current (HVDC) converter
stations used for power exchange in utility systems. This standard presumes the use of 12-pulse thyristor
converters but can, with due care, also be used for 6-pulse thyristor converters.
In some applications, synchronous compensators or static var compensators (SVC) may be connected to the
a.c. bus of the HVDC converter station. The loss determination procedures for such equipment are not
included in this standard.
This standard presents a set of standard procedures for determining the total losses of an HVDC converter
station. Typical HVDC equipment is shown in Figure 1. The procedures cover all parts, except as noted
above, and address no-load operation and operating losses together with their methods of calculation which
use, wherever possible, measured parameters.
Converter station designs employing novel components or circuit configurations compared to the typical
design assumed in this standard, or designs equipped with unusual auxiliary circuits that could affect the
losses, shall be assessed on their own merits.
BS EN 61803:1999+A1:2010 history
2016BS EN 61803:1999+A2:2016 Determination of power losses in high-voltage direct current (HVDC) converter stations line-commutated converters
1999BS EN 61803:1999+A1:2010 Determination of power losses in high-voltage direct current (HVDC) converter stations with line-commutated converters