- Automated Network Management solution to manage micro networks - Results of smart grid laboratory testing by Tecnalia

1. EUW 2014
© Landis+Gyr | November 5, 2014
Balancing micro networks in dynamic production and demand environments
Igor Dremelj, Landis+Gyr AG and Iñigo Cobelo, Tecnalia

2. European Utility Week | © Landis+Gyr | November 5, 2014
Can the distribution network be made smart?
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Investment
Time
Measure & Monitor
Analyse
Act
Automate
- AMI
- Sensors
- RTU’s
- Protection relays
- AMI
- Data Analytics
- AMI, VPP - SCADA/DMS
- Grid Controllers
- Voltage regulators
- OLTC based Transformers

3. European Utility Week | © Landis+Gyr | November 5, 2014
Why Network Digitalization?
Functions Benefits
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Power System Visualization
Data Analytics
Fault Locating
Renewable Energy Source Control
Active Voltage Regulation
Predictive Capacity Management
Increased awareness
Faster fault recovery process
Better asset management
Manage decentralized generation
Improved power quality, reduced losses
Balancing energy demand and supply within the network capability limits

4. European Utility Week | © Landis+Gyr | November 5, 2014
Active Voltage Regulation with Grid Controller
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Existing voltage control systems may no longer be suitable if generation is connected to the feeder
Overvoltage situations have a negative impact on electrical devices, cause higher technical losses and can trigger the feeder line / transformer safeguards

5. European Utility Week | © Landis+Gyr | November 5, 2014
Active Voltage Regulation with Grid Controller
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Real-time measurement and VR, BESS, STATCOM or similar controllable elements
Grid Controller manages the voltage regulator, P/Q compensation with battery storage based on current demand/supply needs on the observed part of distribution network

6. European Utility Week | © Landis+Gyr | November 5, 2014 | PUBLIC
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ANM Solution Validation at TECNALIA’s smart grid lab

7. European Utility Week | © Landis+Gyr | November 5, 2014
Research centre Tecnalia
TECNALIA is the first applied research centre in Spain and one of the most important in Europe, with around 1.500 staff, 110 million € turnover and over 4.000 clients
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8. European Utility Week | © Landis+Gyr | November 5, 2014
inGrid - Distributed Generation Demonstration & Validation Centre in Bilbao
Used as R&D platform for:
 power electronics prototypes development
 microgrids energy management systems development
 algorithms for primary regulation
 secondary regulation
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Used for certification purposes, e.g.:
DK5940: Criteri di allacciamento di impianti di produzione alla rete bt di enel distribuzione (Italy)
 VDE0126-1-1: Automatic disconnection device between a generator and the public low-voltage grid (Germany)

9. European Utility Week | © Landis+Gyr | November 5, 2014
Landis+Gyr’s ANM Solution validation at TECNALIA’s lab
ANM solution
S650 Smart Grid Terminal for real-time measurements
μEMS controller for local control
μEMS server for remote access monitoring and visualization
Validated applications
Active Voltage Regulation
Predictive Capacity Management
Validation scenarios
Defined based on Tecnalia’s experiences and measurements from various distribution networks
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10. European Utility Week | © Landis+Gyr | November 5, 2014
Validation setup
μEMS Server
μEMS Controller
S650
RTUs
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Microgrid lab
RES (inverter controlled diesel generator)
Load (programmable load bank)
TVR simulator
Storage simulator
Line simulator

11. European Utility Week | © Landis+Gyr | November 5, 2014
Integration of Distributed Energy Resources
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Combination of intermittent renewable generation and changing consumption habits causes difficulties, such as voltage fluctuation and network overload situations.

12. European Utility Week | © Landis+Gyr | November 5, 2014
Validation scenario 1: Resolving voltage fluctuation with ANM Active Voltage Regulation
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13. European Utility Week | © Landis+Gyr | November 5, 2014
Validation results: Significant reduction of voltage fluctuation when applying ANM
Validated Controls:
TVR with -2/+2 taps
Storage system with P/Q control
RES and Load curtailment 40-70- 100% (under extreme conditions)
Validation for various line characteristics:
Resistive
Inductive and
Mixed
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14. European Utility Week | © Landis+Gyr | November 5, 2014
Validation results: VR using TVR and Q control only
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15. European Utility Week | © Landis+Gyr | November 5, 2014
Validation results: TVR control only
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16. European Utility Week | © Landis+Gyr | November 5, 2014
Validation scenario 2: Resolving feeder overload with Predictive Capacity Management
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17. European Utility Week | © Landis+Gyr | November 5, 2014
Validation results: Keeping current within feeder rating limits
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Validated Controls:
Storage system with P/Q control
RES and Load curtailment 40-70- 100% (under extreme conditions)
Validation for various line characteristics:
Resistive
Inductive and
Mixed

18. European Utility Week | © Landis+Gyr | November 5, 2014
Validation results: P control only
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19. European Utility Week | © Landis+Gyr | November 5, 2014
Summary
Distribution Networks can be made Smart!
ANM provides many benefits from better quality of supply to optimizing current assets usage
Field proven ANM solution, validated by an independent service provider, is available
The solution is able to predict mismatch between supply and demand in the selected region, automatically apply corrective measures to the grid and maximize its operational efficiency and reliability as a result
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20. Thank you for your attention
European Utility Week | © Landis+Gyr | November 5, 2014
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