ewe in germany uses apps to analyze impact of...
TRANSCRIPT
28.10.2016 1Esri GeoConX – EGUG 2016 – UT Smart Apps ©2016 AED-SICAD
EWE in Germany Uses Apps to Analyze Impact of Prosumers
Thomas Kindervater, EWE Netz GmbHGerald Kreuwel, AED-SICAD AG
Esri GeoConX – EGUG 2016, Phoenix (AR), USA
28.10.2016 2Esri GeoConX – EGUG 2016 – UT Smart Apps
Agenda
1. EWE’s role for sustainable energy systems
2. Assessing local network stability in GIS
3. Ideas for the future
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EWE‘s role for sustainable energy systems
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Electricity / GasTelecom
Sour
ce: E
WE
Net
z Gm
bH 2
015
and
EWE
Net
z Gm
bH w
ebsit
e20
15
Supply regions
2014 in numbers81.660 km of electricity network148 transformer stations18.060 substations and switch gear824.130 service points
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EWE NETZ: Current sustainable share in energy supplyElectricity generation from sustainable and traditional energy sources supplied to EWE networks
SustainableTraditional
2012 201463 % 75 %
Source: EWE Netz GmbH 2015
Goals proposed by german governmentElectricity generation from sustainable and traditional energy sources
2014 up to 2050SustainableTraditional
80 %
28 %
Source: German government website 2015
Transition to sustainable energy supply
Xaver‘s impact:December 2013
94 %
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A challenge to distribution networks
+124%
Energy sources: Wind, Solar, Biogas, Water, Gases (in MW)EWE NETZ
3,2473,737
4,264
4,808 5,000 5.159
2009 2010 2011 2012 2013 2014
Maximum network load per year
2.399 2.505 2.425 2.428 2.396 2.300
Installed power
Source: EWE Netz GmbH 2015
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Why does network connection assessment help?
A new energy producer or consumer requeststo be connected to the electricity network
A utility company cares to do so• in accordance with existing law (e.g. EN 50160)• cost-effective, but protective to network stability
Network connection assessment means to• evaluate the potential impact of one or more new connections• analyze scenarios with additional actions to take for stability• choose the most suitable scenario for each request
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Assessing local network stability in GIS1. Goals2. Process3. Results
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Initial goals to use GIS
Reduce process time of requests for new suppliers to 0.5 h
Harmonize process for network connection assessmentsthrough all regional offices• Network calculation• Documentation• Reliable reproduction
of results
0
5000
10000
15000
Number of requests
Source: EWE Netz GmbH 2015
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Meets critical thresholds
Manual data analysis
Calculate voltage level difference
for each affectedcable section
Evaluate stabilizing actions
Handwritten documentation using paper maps
Assessing the impact of a new solar panel manuallyNew solar panel
connection request
Scan and store digitized documents
+ additional measuresfor network stability
Evaluate result based on tables
and diagrams(EWE planning
principles)
Arrangefor network connection
Exceeds critical
thresholds
Introducean adjustable transformer
Switchnetwork areas …
Repeat until ….
Reinforce network with additional
cables
Source:EWE Netz GmbH 2015
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Meets critical thresholds
Exceeds critical thresholds
Simulate stabilizing actions
Assessing the impact of a new solar panel in GIS
New solar panel connection request
Arrangefor network connection
Reinforce network with additional
cables
Introducean adjustable transformer
Switchnetwork areas …
Simulate effect on network
stability
Repeat until ….
+ additional measuresfor network stability
Source:EWE Netz GmbH 2015
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Example 1
Station 1 New application for solar panel
Calculation 1 returns„tension too high“Scenario 1: Evaluate reinforcement cableand re-calculate
Scenario 2: Consider Smart Grid Technology (adjustable transformers)and re-calculate
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Example 2
Station 1 Station 2
D Box 1 D Box 2
Too much load here
Close switch
Open switch
New supply situation,re-calculate – better?
Open switch
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Access to data sources for each assessment
Access
Quickfind
GIS
SAP-PM
EInS (suppliers)
easy+ (documents)
Planning principles
Access
Quickfind
GIS
GIS
GIS
GIS
Planning principles
Network Connection Assessment
manually GIS based
Source: EWE Netz GmbH 2015
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Assessing local network stability in GIS
Software Demo
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Results
Shorter calculation time Results are closer to real conditions
Source: EWE Netz GmbH 2014 + 2015
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Whenever time is costly …
Voltage level differencehad to be calculatedbased on each cable section
Source: EWE Netz GmbH 2015
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… it limits the possible extent of analysis
Manual data analysis allowssufficient evaluation for each section
Automated network calculation modelfor the same section providesalmost the same results
BUTresults only represent individual sections,while network changes influencenot only section stability,but all network elementsfed by the same station
Source: EWE Netz GmbH 2015
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New solar panel
Identified overload ofa cable
Voltage change from surrounding suppliersevaluated
Higher impact on voltage level difference than expected for this section
Identified voltage problems
Cable section that could be manually evaluated
Source: EWE Netz GmbH 2015
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Results
Shorter calculation time Results are closer to real conditions Evaluation with visual feedback
• Traffic light system• Overview for each network fed by the same station• Compare results for scenarios and calculation types
Enhanced data quality through combination of data sources
Source: EWE Netz GmbH 2015
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Advantages of a “tailor-made” network
Optimize usage of existing network capacities
Guarantee voltage quality (e.g. EN 50160)
Protect network equipment from overload
Reduce or delay costs for network expansion
Simulate impact of new technology, e.g. intelligent substations, to operate low voltage with smart grid solutions
Source: EWE Netz GmbH 2014
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A successful collaboration from a new approach to a product
Ideas – Scenarios – Data – Pilot and productive use
Concept – Implementation (Project)
Concept – Implementation (Client)
Concept – Architecture – Implementation (Server)
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UT Smart AppsPLAN – CALC - EDIT
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UT Smart Apps PLAN – CALC – EDIT
Studies with different scenarios
Simulation of the switch positions
Simulation of the effect of new service points or feed-in points (e.g. photovoltaïc)
Simulation of network stabilizing actions / smart grid technology
Network calculation („load flow“) integrated
Bill of Materials
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Architecture: UT Smart Apps
Network Planners:Planning,Network Assessment,Network Calculation
Servers
Intranet
Web Clients
Esri Geodatabase
Professional Network Calculation Package
(Powerfactory)
Type of Calculation can be adapted:- Load flow- Short Circuit- etc
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NCS Calculation Engine
UT Smart Apps – Process & Data Flow
COLLECT FROM_GIS
TO_GIS COLLECT
Import
ExportViewing-DB9.3.1
TRACE
Calculate
APPLY MERGE Arc-Node
Planning-DB 10.2
External Systems
DB Views
GISProduction
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Ideas for the future
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Ideas for the future
Advanced scenarios
Integrated statisticsShort circuit calculation
Network management
Time series scenarios
3. Takingsimulationto the next level …
Station internalsSwitches and statesCircuits
1. Electricity data+ network analysis
Topology
Supplied PowerLoad per year
Network calculation
2. Calculation,Planning +Simulation
Modified assetsincl. switches and trafos
Simulation of various planning scenarios
….
Planned, new assets
….
Source: EWE Netz GmbH 2014 + 2015
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Sources
[EWE Netz GmbH 2015]Presentation „SmartGIS II bei EWE NETZ“ (AED-SICAD Kongress der Versorgungswirtschaft) by Sven NiedermeierDate of presentation: 24.09.2015 + additional slides: 25.09.2015
[EWE Netz GmbH 2014]Presentation „ Anschlussbeurteilung – Stand der Produktentwicklung“ (AED-SICAD Kongress der Versorgungswirtschaft)by Thomas KindervaterDate of presentation: 24.09.2014
[EWE Netz GmbH website 2015]https://www.ewe-netz.de/unternehmen/zahlen-daten-fakten.phpDate of online query: 01.10.2015
[German government website 2015]http://www.bundesregierung.de/Webs/Breg/DE/Themen/Energiewende/Fragen-Antworten/1_Allgemeines/1_warum/_node.htmlDate of online query: 28.09.2015
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Thank you for your attention!
Thomas KindervaterEWE NETZ GmbH
Cloppenburgstr. 30226133 Oldenburg
www.ewe-netz.de
Gerald KreuwelAED-SICAD AG
Carl-Wery-Str. 2281739 Munich
www.aed-sicad.de