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B4-75 Feasibility Study for assessment of lab losses measurement of VSC valves

Presently, the losses of VSC valves are determined based on calculation methods of IEC 62751-1 and -2. The calculation method requires detailed information such as the parameters of semiconductor devices, VSC valve design characteristics and operating modes, which usually are not directly available for HVDC system purchaser/user who consequently finds it difficult to evaluate the calculated losses results.

The purpose of this WG is to perform a feasibility study to assess laboratory loss measurement methods on VSC valves for loss calculation evaluation purposes and to make recommendations considering the pros & cons of such measurements versus methods in IEC 62751. A similar approach was established on loss measurements during factory acceptance tests for converter transformers long ago and eventually became part of IEC 61378-2.

The scope of this WG will be limited to the assessment of losses measurement on VSC valves / modules under operational test in laboratory environment.

Terms of Reference (pdf, 134kB)

WG members:

NAMEGIVEN NAMECOUNTRY CODE
RathkeChristianDE
FuYannyNL
DornJörgDE
ShengBaoliangSE
Chataignere Fabienne SE
Dev Daljit CA
Howell Steven CA
LiQiangCN
Ying HuangCN
Srinivasa RaoMaredipudiIN
Drouet d’Aubigny Armand FR
LuoYuCN
OnishiRyotaJP
DavidsonColin CharnockUK