Transcript document

Siemens Wind Power
Business Card
Morten Karulf, 38 years old
Grid Connection Specialist,
B.Sc.E.E.
Education
B.Sc., Electrical Power Engineering,
The Engineering College of Århus, 1999
Currently studying for a Master degree in Management of
Technology at Aalborg University, Denmark.
Wind Power Experience
Delta,
May 2005
ABB,
May 2006
Siemens Wind Power, May 2010
Slide 0
Morten Karulf © Siemens AG 2010
Morten Karulf, Grid Connection, Siemens Wind Power
© Siemens AG 2010
Siemens Wind Power
Facts at a glance
Currently 5,800 employees globally (850 in 2004)
Deliveries: 2,500 MW in 2009 (600 MW in 2004)
Capacity: Growing with a solid double digit rate
Installed Base: > 8,700 turbines with > 11,000 MW capacity
Record Order Entry in FY 2009
No. 1 in new offshore orders in 2007, 2008 and 2009
Target: To become Top 3 supplier in 2012
Slide 1
Morten Karulf, Grid Connection, Siemens Wind Power
© Siemens AG 2010
Siemens offers complete solutions
for Wind Power from a single supplier
Siemens solutions to wind power
Wind Power (E R WP)
Drive Technologies (I DT)
Power Transmission (E T)
MV / HV-switchgear
FACTS, transformer
substations
Cabling
with MV / HV-cables
Installation
Commissioning
Service and
Maintenance
Custom Offerings:
Generator
variable or fixed speed
Gearbox
Blades
Nacelle
Wind turbine
Turnkey wind farms
Slide 2
Grid access, HVDC, HVDC PLUS
Morten Karulf, Grid Connection, Siemens Wind Power
© Siemens AG 2010
Recognized leader with 30 years of experience
in the wind industry
Siemens product portfolio track record
Multi-MW class
 Pitch technology with variable speed
 SWT-2.3-82VS/93/101: 2,241 WTG
 SWT-3.6-107: 190 WTG
SWT-3.0-101 DD
SWT-3.6-120
MW class
SWT-3.6-107
 CombiStall technology
 SWT-1.0-54: 356 WTG
 SWT-1.3-62: 1,520 WTG
 SWT-2.0-76: 165 WTG
 SWT-2.3-82: 506 WTG
SWT-2.3-101
SWT-2.3-93
SWT-2.3-82 VS
SWT-2.3-82
SWT-2.0-76
SWT-1.3-62
SWT-1.0-54
SWT-3.0-101 DD:
direct drive technology
Former product portfolio
Current product portfolio
Installed base worldwide: > 8,700 turbines with > 11.000 MW capacity
Slide 3
Morten Karulf, Grid Connection, Siemens Wind Power
© Siemens AG 2010
Siemens NetConverter® decouples the generator
from the grid
Siemens NetConverter® schematics
NetConverter®
Transformer
Gearbox
G
Main
Rotor
Asynchronous
generator
Main
circuit
breaker
Grid
 Gearbox increases shaft speed to over 1,000 rpm (variable speed)
 Asynchronous (induction) generator converts mechanical power to electric
power (AC)
 Siemens NetConverter® provides power conversion and grid support
 Generator-side converter converts variable-frequency AC to DC
 Grid-side converter converts DC to grid-frequency AC
Slide 4
Morten Karulf, Grid Connection, Siemens Wind Power
© Siemens AG 2010
Power System Network
Grid Code requirements are always related to the PCC
Wind Turbine
Generator
Converter
0.69 /33 kV
WTG Trafo
33 kV
Busbar
132/400 kV
Wind Turbine
Generator
Converter
0.69 /33 kV
WTG Trafo
33 kV
Busbar
33 kV
Busbar
33/132 kV
Park Trafo
132 kV
Busbar
400/16 kV
132 kV
PCC
Power Station
Wind Turbine
Generator
Converter
0.69 /33 kV
WTG Trafo
33 kV
Busbar
132/50 kV
50/10 kV
10/0.4 kV
HPPP
Consumer
Slide 5
Morten Karulf, Grid Connection, Siemens Wind Power
© Siemens AG 2010
Grid codes require wind farms to behave like
conventional power plants
Common grid code requirements
Operation range
Operate within voltage and
frequency variation limits
Power quality
Operate within harmonic
content and flicker limits
Frequency control
Regulate power output to a
defined level or according to
frequency deviations1)
Low Voltage Ride Through
Withstand low-voltage events
for several seconds without
tripping off
Voltage control
Regulate reactive power in
response to system voltage
variations 2)
Notes:
1) E.g. required in Denmark, Germany, Ireland, UK, Nordic grid code, etc.
2) E.g. required in Denmark, Germany, Ireland, UK, etc.
Slide 6
Morten Karulf, Grid Connection, Siemens Wind Power
© Siemens AG 2010
Siemens NetConverter® responds to grid codes
with maximum flexibility and top performance
Siemens NetConverter® Capabilities
Operation range
Accommodate a wide range of
frequency and voltage
disturbances
Power quality
Minimum harmonic content
and flicker emission
Active power control
Multiple options to respond to
under-frequency and overfrequency events
Low Voltage Ride Through
Advanced LVRT capabilities to
meet the most demanding grid
codes
Reactive power control
Top reactive power
capabilities, even at no wind 1)
Notes:
1) Not available in US
Slide 7
Morten Karulf, Grid Connection, Siemens Wind Power
© Siemens AG 2010
Siemens NetConverter® enables the wind park to
participate in the system frequency control
Active power control
power
 Maximum flexibility for frequency
regulation
 Power output curtailment to set
points according to frequency
deviations
 Ramp rate control
 Delta control
Power output curtailment
Available output
Delivered
output
Ramp rate
control
(MW/minute)
time
Active power reserve
power
 Siemens wind parks can respond to
system over-frequency and underfrequency events
Delta control
time
Slide 8
Morten Karulf, Grid Connection, Siemens Wind Power
© Siemens AG 2010
Active Power Control - Frequency Control
80000
50,90
77500
50,80
75000
50,70
72500
50,60
70000
50,50
67500
50,40
65000
50,30
62500
50,20
60000
50,10
57500
50,00
55000
19:36:00
19:36:30
19:37:00
time
Slide 9
19:37:30
kW tot
19:38:00
Freq Inj.
Morten Karulf, Grid Connection, Siemens Wind Power
19:38:30
Hz
MW
Burbo Banks Wind Farm
Frequency Injection NG-P4 LFSM
49,90
19:39:00
Freq
© Siemens AG 2010
Siemens wind parks can support grid voltage and
provide higher customer value
Reactive power control 1)
 Top capability for voltage regulation
 Wide power factor range
 Dynamic reactive power capabilities
 Reactive power control independent of active power
production
 Reactive power control even at no wind
 Reduced balance of plant costs by limiting or
completely eliminating grid reinforcement devices at
substation level
 Benefit from the remuneration of reactive power
production where applies 2)
Notes:
1)
Not available in US
2)
E.g. UK, Spain, Ireland, Canada (some provinces), Australia, etc.
Slide 10
Morten Karulf, Grid Connection, Siemens Wind Power
© Siemens AG 2010
Reactive Power Capability
 The figure shows the reactive power
capability for the SWT-3.6 VS Wind
Turbine on the 690 V terminals.
 Full reactive power support possible
 Curves are only limited by the rating
of the frequency converter
Slide 11
Morten Karulf, Grid Connection, Siemens Wind Power
© Siemens AG 2010
Siemens NetConverter® responds to grid faults in
accordance with the most demanding codes
Low Voltage Ride Through (LVRT)
 Advanced features to conform to the
different LVRT requirements
 Voltage dips down to zero volts
 Active and reactive power injection
 Control of output during the entire
fault duration
 Independent phase control during
asymmetric fault
 Robust system design with respect
to electrical and mechanical stress
Example of possible LVRT response
P
Q
time
Reactive power
injection during fault
P = active power; Q = reactive power
Slide 12
Morten Karulf, Grid Connection, Siemens Wind Power
© Siemens AG 2010
Grid Code requirements
 FRT - Fault Ride Through
 Overview of different FRT requests
1,2
1
0,8
Nationa Grid, UK
ESB, IRL
E.ON, D
Energinet.dk
Svenska Kraftnät, S
RED Eléctrica, E
FERC, USA
Statnet, N
Voltage
0,6
0,4
0,2
0
-0,2
-0,50
0,00
0,50
1,00
1,50
2,00
2,50
3,00
3,50
Time
Slide 13
Morten Karulf, Grid Connection, Siemens Wind Power
© Siemens AG 2010
Modeling and testing of turbines
FRT – Example from FRT with 3,6 MW Siemens Wind turbine

Voltage dip down to zero percent

Full reactive current contribution to support grid fault
Slide 14
Morten Karulf, Grid Connection, Siemens Wind Power
© Siemens AG 2010
Siemens NetConverter®: the enabling technology
for the integration of wind power in the grid
Management Summary
Siemens wind turbines not only produce power but also help
in reinforcing the grid
The Siemens NetConverter® features a wide range of available options
and parameters to comply with grid codes
The Siemens NetConverter® provides extra value to the client by
saving balance of plant costs, boosting revenues and reducing the turbine
wear and tear
Slide 15
Morten Karulf, Grid Connection, Siemens Wind Power
© Siemens AG 2010
Slide 16
Morten Karulf © Siemens AG 2010. All rights reserved.
Morten Karulf, Grid Connection, Siemens Wind Power
© Siemens AG 2010