sustainable electric networks and sourcesof energy … flow calculation for all branches n, 2, dso...
TRANSCRIPT
1www.sense.tu-berlin.de
Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
Chair ofSustainable Electric Networks
and Sources of Energy
Project SuSTAINABLEand Emerging Energy System Topics in Europe
Professor Dr.-Ing. Kai StrunzTU Berlin, Germany
NEDO Smart Community Summit 2017
Tokyo, 8 June 2017
2www.sense.tu-berlin.de
Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
1. Introduction
2. Project e-Highway2050
3. Project SuSTAINABLE
4. Conclusions
Overview
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
1. Introduction: Energy Union Strategy of European Union
• In 2015, the Energy Union strategy was announced
• It relies on five important pillars set to support the EU’s targets on energy and climate:o Supply security: more diverse sources and better use of energy produced in
the European Union (EU)o Full energy market integration: interconnectors for free cross-EU power flowso Energy efficiency: less energy consumption and less importso Decarbonization: take action on the climate and reduce emission o Supportive research and innovation: breakthrough low-carbon solutions
• For 2050, the EU targets call for 80 % to 95 % reductions of CO2 emissions
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
2. Project e-Highway2050: Fast Facts
• Full title: Modular Development Plan of the Pan-European Transmission System 2050
• Duration: 40 months(Sep 2012 - Dec 2015)
• Budget: 13 M€
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
2. Project e-Highway2050: Partners
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2. Project e-Highway2050: Project Objectives
• Developing methodology for planning European electricity transmission at very long-term horizon
• Using methodology for first version of transmission network 2050 consistent with EU climate and energy policy
• Creating a consensus-oriented modular pathway of expansion from 2030 to 2050
• Performing technical, socio-economical, and environmental assessments of transmission grid extensions
• Offering wide transparency on grid planning process
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
2. Project e-Highway2050: European Cluster Model †
• For resource allocation in scenarios, EU was decomposed into cluster of 100 zones
• This gives the geographical dimension
• Transmission grid counts about 8000 nodes
• The 8000 nodes were mapped onto those 100 zones
• For better focus and insight, only inter-zone transmission corridors considered for the long-term planning
• At this large a horizon, uncertainties are too large to account for details at substation level
† Europe’s Future Secure and Sustainable Electricity Infrastructure: e-Highway2050 Project Results; published by RTE, November 2015
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
ScenarioBig & market
ScenarioFossil & nuclear
ScenarioLarge scale RES
ScenarioSmall & local
Scenario100 % RES
• Specific grid model was obtained for each of the 5 scenarios
• Grid expansion is mainly driven by the deployment of Renewable Energy Systems (RES)
• Grid reinforcements are beneficial in the respective scenarios
• Public acceptance taken into account by considering overhead lines and underground cables
2. Project e-Highway2050: Grid Modeling Results†
† T. Anderski et al.: “Grid Development for Long Term Planning”, e-Highway2050 Final Conference, Brussels, November 4th 2015
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00June 23rd 2040
Renewable generation in Scenario 100 % RES
2. Project e-Highway2050: Power Flow Results
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
3. Project SuSTAINABLE: Fast Facts
• Full title:Smart Distribution System Operation for Maximizing the Integration of Renewable Generation
• Duration: 3 years(Jan 2013 - Dec 2015)
• Budget: 6 M€
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• 8 partners from 5 different EU countries• 2 distribution system operators
• 1 manufacturer
• 5 universities
• 7 Advisory Board Members from industry, universities and TSOs
3. Project SuSTAINABLE: Partners
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3. Project SuSTAINABLE: Demonstration Site Inovgrid
• Located in city of Evora
• 54.000 inhabitants with 30.000 electricity consumers
• 1.307 km2 of urban and rural area
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3. Project SuSTAINABLE: Videohttps://www.youtube.com/watch?v=lFcLBjh0RqY&feature=youtu.be
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
• Making electricity distribution grids more predictable, observable, controllable allowing higher integration of renewables and Distributed Energy Resources (DER):
o Forecasting of renewables and load in networkso Grid monitoring and state estimationo Voltage and power quality control at medium and low voltage levels with
fluctuating renewables
3. Project SuSTAINABLE: Project Objectives
• Designing interactions of stakeholders including aggregators in electricity markets
• Validating and implementing solutions in laboratory and field
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
3. Project SuSTAINABLE: Service-Centric Aggregator Motivation
• DER cannot directly bid into market due to their relatively small sizes
• In SuSTAINABLE, an aggregator to address these issues through dedicated services was designed
• Aggregator groups and coordinates various DER units
• Furthermore, curtailments of renewable generation in distribution networks have risen dramatically
• Aggregator acts on behalf of this pool of controllable dispersed generators, storage, and loads
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
• Role 1: Energy market participation service to resources
• Role 2: Congestion relief service to DSO
3. Project SuSTAINABLE: Service-Centric Aggregator Dual Roles
DSO
Energy market
Service-centric aggregator offers two roles on behalf of its pool:
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• Day-ahead operation: stochastic optimization with the objective to minimize operational cost for the pool
• Intraday operation: deterministic optimization to minimize operational cost and minimize imbalances from updated forecasts
• In intraday operation, rolling horizon approach is followed:
3. Project SuSTAINABLE: Service-Centric Aggregator Role 1: Access to Day-ahead and Intraday Energy Markets
Send bid
Schedulinghorizon
Market processing
Send bid
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3. Project SuSTAINABLE: Service-Centric Aggregator Role 1: Sequence Diagram
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Aggregator controls resources on the illustrated network[1] and other locations
[1] CIGRE Task Force C6.04.02, ”Developing Benchmark Models for Integrating Distributed Energy Resources,” 2014
Resources at other
locations
3. Project SuSTAINABLE: Service-Centric AggregatorRole 2: Accounting for Network Constraints
2
3
4
5
6
7
8
9
10
11
12110/20 kV 110/20 kV
13
14
S2
S3
S1
LoadTransformerBus
1
Switch/CBPV
Wind park
Electrical storage
CHP unit
CHP CHP Th
Thermal storage
Th
CHP
Th
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
Scheduling
Aggregator
Power flow calculationfor all branches , ,
DSO
Start
End
Yes
No
Reconfiguration
DSO
Calculation of percentage giving how change of generation
impacts change of flow
Calculation of desiredmodification of flow ∆ ,
Aggregator
Rescheduling
New schedules
No, ,
, ,
Yes
3. Project SuSTAINABLE: Service-Centric AggregatorRole 2: Flowchart of Congestion Relief Service to DSO
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
Calculation of percentage giving how change of generation
impacts change of flow
3. Project SuSTAINABLE: Service-Centric AggregatorRole 2: Technical Validation of Schedules
Scheduling
Aggregator
Power flow calculationfor all branches , ,
DSO
Start
End
Yes
No
Reconfiguration
DSOCalculation of desired
modification of flow ∆ ,
Aggregator
Rescheduling
New schedules
No, ,
, ,
Yes
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
2
3
4
5
6
7
8
9
10
11
12110/20 kV 110/20 kV
13
14
S2
S3
S1
LoadTransformerBus
1
Switch/CBPV
Wind park
Electrical storage
CHP unit
CHP CHP Th
Thermal storage
Th
CHP
Th
• Aggregator calculates schedules and sends them to the DSO
Time Branch Congestion (MW)09:15-09:30 3-2 0,8
DSO
3. Project SuSTAINABLE: Service-Centric AggregatorRole 2: Technical Validation of Schedules
• Power flow calculation of DSOindicates congestion at 09:15 on branch 3-2
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
Calculation of percentage giving how change of generation
impacts change of flow
3. Project SuSTAINABLE: Service-Centric AggregatorRole 2: Network Reconfiguration Action
Scheduling
Aggregator
Power flow calculationfor all branches , ,
DSO
Start
End
Yes
No
Reconfiguration
DSOCalculation of desired
modification of flow ∆ ,
Aggregator
Rescheduling
New schedules
No, ,
, ,
Yes
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
2
3
4
5
6
7
8
9
10
11
12110/20 kV 110/20 kV
13
14
S2
S3
S1
LoadTransformerBus
1
Switch/CBPV
Wind park
Electrical storage
CHP unit
CHP CHP Th
Thermal storage
Th
CHP
Th
• DSO attempts to reconfigure the network by switching S1
• Switching creates overload on branches 14-13 and 13-12 due to high wind power generation on bus 14
DSO
3. Project SuSTAINABLE: Service-Centric AggregatorRole 2: Network Reconfiguration Action
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
3. Project SuSTAINABLE: Service-Centric AggregatorRole 2: Preparing Request for Congestion Relief
Scheduling
Aggregator
Power flow calculationfor all branches , ,
DSO
Start
End
Yes
No
Reconfiguration
DSOCalculation of desired
modification of flow ∆ ,
Aggregator
Rescheduling
New schedules
No, ,
, ,
Yes
Calculation of percentage giving how change of generation
impacts change of flow
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
2
3
4
5
6
7
8
9
10
11
12110/20 kV 110/20 kV
13
14
S2
S3
S1
LoadTransformerBus
1
Switch/CBPV
Wind park
Electrical storage
CHP unit
CHP CHP Th
Thermal storage
Th
CHP
Th
• Flow on line 3-2 to be reduced by 0,8 MW
∆ , 0,8MW
91%
91%
90%
90%
3. Project SuSTAINABLE: Service-Centric AggregatorRole 2: Preparing Request for Congestion Relief
DSO
• Changes of generation at buses 4, 5, 8, 10 have a high impact on flowof congested line
27www.sense.tu-berlin.de
Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
Calculation of percentage giving how change of generation
impacts change of flow
3. Project SuSTAINABLE: Service-Centric AggregatorRole 2: Aggregator Rescheduling Action
Scheduling
Aggregator
Power flow calculationfor all branches , ,
DSO
Start
End
Yes
No
Reconfiguration
DSOCalculation of desired
modification of flow ∆ ,
Aggregator
Rescheduling
New schedules
No, ,
, ,
Yes
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
2
3
4
5
6
7
8
9
10
11
12110/20 kV 110/20 kV
13
14
S2
S3
S1
LoadTransformerBus
1
Switch/CBPV
Wind park
Electrical storage
CHP unit
CHP CHP Th
Thermal storage
Th
CHP
Th
• Aggregator adjusts the schedules of its resources and sends the adjusted schedules to the DSO
DSO
3. Project SuSTAINABLE: Service-Centric AggregatorRole 2: Aggregator Rescheduling Action
• DSO repeats power flow calculation for verification
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
2
3
4
5
6
7
8
9
10
11
12110/20 kV 110/20 kV
13
14
S2
S3
S1
LoadTransformerBus
1
Switch/CBPV
Wind park
Electrical storage
CHP unit
CHP CHP Th
Thermal storage
Th
CHP
Th
Congestion relieved without curtailment of renewables
DSO
3. Project SuSTAINABLE: Service-Centric AggregatorRole 2: Successful Congestion Relief
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3. Project SuSTAINABLE: Laboratory Validation at TU Berlin
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3. Project SuSTAINABLE: Field Validation in Evora, Portugal
DTC
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• The concept of a service-centric aggregator that cooperates with the distribution system operator shows to:
o Support the market integration of distributed energy resourceso Increase the share of renewable power generationo Contribute to secure system operation through the provision of a
coordinated congestion management service
3. Project SuSTAINABLE: Observations
• With many more functions, SuSTAINABLE laid foundations for shift to new operation paradigm in the operation of distribution networks
• The functionalities were validated and their added value was verified
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Tokyo, 8 June 2017Professor Dr.-Ing. Kai StrunzSmart Community Summit
4. Conclusions• Cooperative projects play an important role in supporting energy transformation
Thank you
• Project SuSTAINABLE is an excellent role model
• The SuSTAINABLE team appreciates the opportunity of the exchange with NEDO