Vestas Wind Systems A/s

Nicolaj Olesen

Peter Mongeau

Lars Brink Christensen

Marek Swies

An electrical power generating assembly for a wind turbine. The electrical power generating assembly comprises a gearbox comprising a gearbox output shaft, a generator comprising a rotor that is coupled to the gearbox output shaft; and a current measuring module located between the gearbox and the generator. The current measuring module comprises: an electrical pickup mounted to the electrical power generating assembly, wherein the electrical pickup includes an electrical contact that engages with a slip ring associated with the rotor. The current measuring module further comprises: a first current measuring device mounted with respect to the electrical pickup to detect current flowing at least through the electrical pickup; and a second current measuring device mounted with respect to the electrical pickup to detect current flowing through at least a component associated with the gearbox output shaft.

Stray current detection in wind turbine generators

An electrical power generating assembly () for a wind turbine (). The electrical power generating assembly comprises a gearbox () comprising a gearbox output shaft, a generator () comprising a rotor () that is coupled to the gearbox output shaft; and a current measuring module () located between the gearbox () and the generator (). The current measuring module () comprises: an electrical pickup () mounted to the electrical power generating assembly (), wherein the electrical pickup () includes an electrical contact () that engages with a slip ring () associated with the rotor (). The current measuring module further comprises: a first current measuring device () mounted with respect to the electrical pickup () to detect current flowing at least through the electrical pickup; and a second current measuring device () mounted with respect to the electrical pickup () to detect current flowing through at least a component associated with the gearbox output shaft.

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Nørresundby, Denmark

Nicolaj Olesen