IEC 62751-2:2019 PDF

Scope: Full Description IEC 62751-2:2019 gives the detailed method to be adopted for calculating the power losses in the valves for an HVDC system based on the \"modular multi-level converter\", where each valve in the converter consists of a number of self-contained, two-terminal controllable voltage sources connected in series. It is applicable both for the cases where each modular cell uses only a single turn-off semiconductor device in each switch position, and the case where each switch position consists of a number of turn-off semiconductor devices in series (topology also referred to as \"cascaded two-level converter\"). The main formulae are given for the two-level \"half-bridge\" configuration but guidance is also given as to how to extend the results to certain other types of MMC building block configuration.

IEC 62751-2:2019 history

2023 IEC 62751-2:2014/AMD2:2023 Amendment 2 - Power losses in voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) systems - Part 2: Modular multilevel converters
1970 IEC 62751-2:2023 Determination of power losses in voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) systems - Part 2: Modular multilevel converters
2019 IEC 62751-2:2014/AMD1:2019 Amendment 1 - Power losses in voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) systems - Part 2: Modular multilevel converters
2019 IEC 62751-2:2019 Power losses in voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) systems - Part 2: Modular multilevel converters CONSOLIDATED EDITION
2014 IEC 62751-2:2014 Determination of power losses in voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) systems - Part 2: Modular multilevel converters