S97 Operation Data

Question 1

What is the average CUT IN wind speed for an S97?

Answer 1

3.5 m/s

Question 2

What is the gust (three second average) CUT OUT wind speed for an S97?

Answer 2

30-34 m/s

Question 3

What is the sustained (10 minute average) CUT OUT wind speed for an S97?

Answer 3

20-25 m/s

Question 4

What is the rotor speed, in RPM, at rated power for an S97?

Answer 4

15.46 rpm

Question 5

What is the tips speed in mph at rated power for an S97?

Answer 5

176 mph

(or 78.8 m/s)

Question 6

What are the 5 operation modes of a S97?

Answer 6

1) Production
2) Synchronisation
3) Free wheeling
4) Idling
5) Stand Still

Question 7

What is Concycle and what does it do?

Answer 7

Concycle = Constant + Cycle
System that allows the variable rotation frequency of the generator to be transformed into constant electrical frequency for the grid.
- The DFIG system is excited by the converter system.
- The machine side of converter can supply rotor
- The grid side of converter can supply stator