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Operational control of wind farm clusters for transmission system operators

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K. Rohrig, B. Lange, M. Wolff, R. Mackensen. D. Braams. B. Valov, S. Heier. L. Hofmann, M. Rosin. C. Scholz, A. K nnemann. K. Biermann. Overview ... – PowerPoint PPT presentation

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Title: Operational control of wind farm clusters for transmission system operators


1
Operational control of wind farm clusters for
transmission system operators
  • K. Rohrig, B. Lange, M. Wolff, R. Mackensen
  • D. Braams
  • B. Valov, S. Heier
  • L. Hofmann, M. Rosin
  • C. Scholz, A. Könnemann
  • K. Biermann

2
Overview
  • Challenges for the Integration of Wind Power
  • Wind Farm Cluster Concept
  • Wind Farm Cluster Management System
  • Field Test
  • Summary
  • Outlook

3
Challenges for the Integration of Wind Power
The German Wind Power Plant 21,400 MW 18,900
WT as of 09/2007
4
Challenges for the Integration of Wind Power
  • Too much power generation in one region at low
    load hours
  • Congestion management needed

5
Challenges for the Integration of Wind Power
Load profile wind generation 2015
Tomorrow konv. generation load wind
generation 0
  • No conventional generation is running
  • gt Grid management (frequency, voltage control,
    ...) needed

6
Challenges for the Integration of Wind Power
  • Solutions
  • Power output forecasting
  • Generation control for high penetration of wind
    power
  • Extension of capabilities to provide ancillary
    services
  • New tools for the integration
  • in the electricity supply system
  • are needed
  • Power output forecasting
  • Generation control

Source PE Netz
7
Wind Farm Cluster Concept
  • Aim of wind power generation control
  • Make wind power controllable
  • Allow wind power to take part in grid management
  • Focus on transmission grid
  • Control strategies
  • Congestion Management
  • Reduction of gradients
  • Supply of reactive power
  • Voltage control
  • Supply of balancing power
  • Scheduling of wind power feed-in

8
Wind Farm Cluster Concept
Cluster all wind farms connected to a
transmission grid node
Forecast and Measurement
9
Wind Farm Cluster Concept
10
Wind Farm Cluster Concept
TSO Cluster Wind farm Turbine
  • Hierarchical control system
  • Control of clusters according to the requirements
    of the TSO
  • Wind Farm Cluster Management System (WCMS)

11
Wind Farm Cluster Management System
Active Power Limitation
12
Wind Farm Cluster Management System
Supply of balancing power by means of short term
prediction and tolerance band
13
Wind Farm Cluster Management System
Supply of balancing power by means of short term
prediction and tolerance band
14
Wind Farm Cluster Management System
Supply of balancing power by means of short term
prediction and tolerance band
15
Wind Farm Cluster Management System
Weather forecast
Wind Farm Cluster Management
Forecast
WCM
16
Field Test
Substation Wechold
Wind Farm Mainsche/Pennigsehl33 WT / 60,4 MW
17
Field Test
Cluster available power
Cluster actual power
Cluster control setting
Substation Wechold
Penningsehl available power
Penningsehl actual power
18
Summary
  • Integration of large amounts of wind power make
    new tools for grid operation necessary
  • For integration of wind power, the Wind Farm
    Cluster Management System (WCMS) has been
    developed at ISET
  • Cluster all wind farms connected to one
    transmission grid node
  • Provides forecast and allows control for each
    grid node
  • Gives the TSO an extended control of the Wind
    Power Plant
  • Its capabilities are currently demonstrated in a
    field test in Germany

19
Outlook WCMS demonstration at alpha ventus
  • alpha ventus
  • Operated by E.ON, EWE, Vattenfall Europe
  • Erection 2008 and 2009
  • RAVE Research at alpha ventus
  • Research funding by BMU of about 50 Mio.
  • Research coordination by ISET
  • Demonstration of WCMS planned

20
Outlook WCMS in Spain and Portugal
  • European research project Wind on the Grid
  • WCMS demonstration in Spain and Portugal
  • Additional hierachy level Wind farm operator
  • New control strategy Voltage control

21
Outlook Combination of different renewable
energies
Renewable Virtual Power Plant 100 Supply by
Wind, PV, Biogas and Pump Storage Model 1/10000
of German load
22
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23
Thank you for your attention !
Institut für Solare Energieversorgungstechnik e.V.
Systems Technology for the Use of Renewable
Energies and Efficient Energy Conversion
  • Research partly funded by

www.iset.uni-kassel.de www.rave-offshore.de www.ko
mbikraftwerk.de
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