Innovative Concepts for Efficient Electrical Distribution Grids Torsten Hammerschmidt, Project...

Innovative Concepts for Efficient Electrical Distribution Grids

Torsten Hammerschmidt,Project Manager

RWE Deutschland AGEssen, Germany

Frankfurt (Germany), 6-9 June 2011

Torsten Hammerschmidt, RWE Deutschland – Germany – Session 5 – Paper 0447

The Project: Grids for Future Electricity Suppy

Project Consortium

Project Leader RWE Deutschland AG

Timeline July 2009 – June 2011

Identification of Efficient Distribution Grid Concepts

Further Development of Evaluation Methods Further Development of Equipment Realisation of a Demonstration Grid

Objective

Frankfurt (Germany), 6-9 June 2011

Torsten Hammerschmidt, RWE Deutschland – Germany – Session 5 – Paper 0447

0

10

20

30

40

50

60

70

2000 2003 2006 2009 2012 2015 2018 2021 2024 2027 2030

Wind offshore

Wind onshore

Solar power

GW

+ 21 GW / 10 aWind Power in the Past

+ 33 GW / 10 aSolar Power in the Future

Photovoltaics will Exceed Growth Rates of Wind Power in Germany

Demonstration Grid Area:130 km² Covered Area4,100 Inhabitants1,900 Service Connections6.0 MW Ren. Generation2.5 MW Max. Load

Source: BMU Pilot Study (Dec 2010)

Frankfurt (Germany), 6-9 June 2011

Torsten Hammerschmidt, RWE Deutschland – Germany – Session 5 – Paper 0447

Smart Grid Demonstration in a Rural German Area

Use of Information- and Communication Technology (ICT)

1

2

3

4

Disposition of Storage Devices

Local Voltage Control to exploit Grid Transportation Capacity

Hierachical Supply Layers in Medium Voltage Level

- Reconstitution of Grid Observability under high Ren. Generation- Wide Area Control

- Biogas Storage in Coordination with PV Generation works as a Virtual Electricity Storage

- Inside Medium Voltage Grid, at Substations and Service Connections

- Strong Cable Line with Electronic Sectionalizers

Frankfurt (Germany), 6-9 June 2011

Torsten Hammerschmidt, RWE Deutschland – Germany – Session 5 – Paper 0447

Local Voltage Control to exploit Grid Capacity

12.20 m

Grid

LoadS=8 MVAP=7.2 MW

Q=3.5 Mvarcosφ=0.9

AC / DC /AC

P=7.4 MWQ=3.2 Mvar

P=0.7 MWQ=0.3 Mvar

P=6.5 MWQ=3.2 Mvar

P=0.9 MWQ=0.0 Mvar

ΔU = 20%

SVoltage-Regulation=0.8 MVA(approx. 10% throughput load)

Frankfurt (Germany), 6-9 June 2011

Torsten Hammerschmidt, RWE Deutschland – Germany – Session 5 – Paper 0447

Medium Voltage

3 ~

Fermenter

BiogasStorage

3 ~

Source:Ceno Tec

3.0 MWhel

PV

AC

DC

Biogas Storage in Coordination with Photovoltaics Generationworks as a Virtual Electricity Storage

Frankfurt (Germany), 6-9 June 2011

Torsten Hammerschmidt, RWE Deutschland – Germany – Session 5 – Paper 0447

Thank you for your Attention

Photovoltaics Windpower

Biogas Generation

Authors:• Torsten Hammerschmidt, RWE Deutschland, Essen• Dr. Thorsten Borchard, ABB, Mannheim• Dr. Jörg Feldmann, Consentec, Aachen• Dr. Astrid Petermann, RWE Rhein-Ruhr Netzservice GmbH, Siegen• Prof. Dr. Christian Rehtanz, TU Dortmund

www.zukunftsnetze.de

Biogas Storage(Under Construction)

Frankfurt (Germany), 6-9 June 2011

Torsten Hammerschmidt, RWE Deutschland – Germany – Session 5 – Paper 0447

Backup

Frankfurt (Germany), 6-9 June 2011

Torsten Hammerschmidt, RWE Deutschland – Germany – Session 5 – Paper 0447

Innovative Concepts help to Reduce the Increase in Grid Cost

Max. Load:Generation:Grid Length:

135 MW110 MW2,070 km

Max. Load:Generation:Grid Length:

120 MW210 MW2,060 km

Lines Continuedto Use:1,800 km

New Lines:260 km

Dispensable Lines:270 km

50 % RegulatedSubstations

18 % exceeding grid

2010 2030