International Standards and Conformity Assessment for all electrical, electronic and related technologies

TC 88

Wind energy generation systems

 
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WG 26 Convenor & Members

Convenor
National

Committee
Mr Robert W Sherwin
 US
Member
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National

Committee
Mr Jan Munksgård BaggesenDK
Mr Pavel BezroukikhRU
Mr Werner BohlenDE
Mr Harald DeckerDE
Mr Wallace EbnerUS
Mr Ion Etxarri SangüesaES
Mr Nicolas GirardFR
Mr Eugenio Gómez SantiagoES
Mr Keir HarmanGB
Mr Roger R HillUS
Ms Anja HovgaardDK
Mr Knud JohansenDK
Mr Sookrae KimKR
Mr seokwoo kimKR
Mr Namho KyongKR
Mr Peng LICN
Mr Zhiyong LiCN
Mr Takatoshi MatsushitaJP
Ms Karen Meyer-TruelsenDE
Mr Crescent MushwanaZA
Mr Peter NachbaurAT
Mr Ryan O'ConnorUS
Mr shingo OnoJP
Mr Frank Joseph PribilUS
Mr Niels RabenDK
Mr Jörn RassowDE
Mr Donald RogersUS
Mr Michael RüterDE
Mr Gregory SimmonsSE
Mr Riaan SmitZA
Mr Mark SpringGB
Mr Jialin SunCN
Mr Hao TangCN
Mr Yukinobu UchidaJP
Mrs Jiayu WangCN
Mr Michael wilkinsonGB

Title & Task

WG 26

Availability and reliability for wind turbines and wind turbine plants

 

The documents for availability define generic terms of wind turbine systems and environmental constraints in describing system and component availability, lifetime expectancy, repairs and criteria for determining overhaul intervals. Ideally the documents shall define terminology and generic terms for reporting wind power based generating unit reliability as well as availability measurement.

A generating unit includes all equipment up to the termination point defined in the distribution code (grid code) agreed between the generation party and the distribution / transmission party. Reliability encompasses measurement of the ability of the wind turbines to perform their intended function. Availability measurements are concerned with fractions of time a unit is capable of providing service, taking environmental aspects into account. Environmental aspects would be wind and other weather conditions, as well as grid and substation conditions.

The technical specification for reliability defines information categories from which reliability metrics can be identified and reported. These definitions shall apply to an individual wind turbine (WTGS) as well as to a Wind Power Station (WPS). The technical specification expands on the information model in the availability documents recognizing that availability and reliability are interrelated.