IEC 62751-1:2014 PDF

Scope: This part of IEC 62751 sets out the general principles for calculating the power losses in the converter valves of a voltage sourced converter (VSC) for high-voltage direct current (HVDC) applications@ independent of the converter topology. Clauses 6 and 8 and subclauses 9.1@ 9.2 and A.2.12 of the standard can also be used for calculating the power losses in the dynamic braking valves (where used) and as guidance for calculating the power losses of the valves for a STATCOM installation. Power losses in other items of equipment in the HVDC substation@ apart from the converter valves@ are excluded from the scope of this standard. Power losses in most equipment in a VSC substation can be calculated using similar procedures to those prescribed for HVDC systems with line-commutated converters (LCC) in IEC 61803. Annex A presents the main differences between LCC and VSC HVDC substations in so far as they influence the method for determining power losses of other equipment. This standard does not apply to converter valves for line-commutated converter HVDC systems.

IEC 62751-1:2014 Referenced Document

IEC 60633:1998 Terminology for high-voltage direct current (HVDC) transmission
IEC 60747-2:2000 Semiconductor devices - Discrete devices and integrated circuits - Part 2: Rectifier diodes
IEC 60747-9:2007 Semiconductor devices - Discrete devices - Part 9: Insulated-gate bipolar transistors (IGBTs)
IEC 62747:2014 Terminology for voltage-sourced converters (VSC) for high-voltage direct current (HVDC) systems

2022 IEC 62751-1:2014/AMD2:2022 Amendment 2 - Power losses in voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) systems - Part 1: General requirements
2018 IEC 62751-1:2014/AMD1:2018 Amendment 1 - Power losses in voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) systems - Part 1: General requirements
2018 IEC 62751-1:2018 Power losses in voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) systems - Part 1: General requirements
2014 IEC 62751-1:2014 Determination of power losses in voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) systems - Part 1: General requirements