European Committee for Electrotechnical Standardization（CENELEC）
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EN 62747:2014
Scope
IEC 62747:2014 defines terms for the subject of self-commutated voltage-sourced converters used for transmission of power by high voltage direct current (HVDC). The standard is written mainly for the case of application of insulated gate bipolar transistors (IGBTs) in voltage sourced converters (VSC) but may also be used for guidance in the event that other types of semiconductor devices which can both be turned on and turned off by control action are used. Line-commutated and current-sourced converters for high-voltage direct current (HVDC) power transmission systems are specifically excluded from this standard.
EN 62747:2014 history
2014EN 62747:2014 Terminology for voltage-sourced converters (VSC) for high-voltage direct current (HVDC) systems