© ABB Group
March 2009| SE | Slide 1
应用于5MW以上机组的变流器技术
ABB drive HuJie
© ABB Group
March 2009| SE | Slide 2
Windturbine drivetrain concepts
© ABB Group
November 10, 2010 | Slide 3
Different drive train concepts
SE
© ABB Group
November 10, 2010 | Slide 4
Electrical drive train of wind turbines
Principle of doubly fed induction machine generation
• approx ± 30% speed variability due to frequency converter on
rotor winding (only 30% of turbine power)
• not supporting demanding grid codes
10...24 kV, f = 50 Hz
or 60 Hz
line coupling
transformer
generator
converter
grid side
converter
gearbox
brake
pitch
drive
rotor bearing
circuit breaker
converter control
wind turbine control
asynchronous
generator
with slip rings
medium voltage
switchgear
frequency converter
crowbar
circuit breaker
SE
© ABB Group
November 10, 2010 | Slide 5
Electrical drive train of wind turbines
Principle of induction machine generation
• simple and robust generator
• 0…100% speed variability due to fullscale converter
frequency converter
10 ... 24 kV, f = 50 Hz
or 60 Hz
line coupling
transformer
DC
generator side
converter
line side
converter
circuit breaker
wind turbine control
converter
control
asynchronous
generator
gearbox
pitch
drive
rotor bearing
brake
medium voltage
switchgear
SE
