Smart Grid at the DSO - Eandis1 oktober 2014

Distribution Grid OperatorDistribution

Grid Operator

Producers ElectricityProducers Electricity

Import Natural GasImport Natural Gas

EliaElia

FluxysFluxys

SuppliersSuppliers

CustomersCustomers

RegulatorCREG / VREG

RegulatorCREG / VREG

Eandis in the Energy market

1 october 2014 AIT Industry Day

Eandis Network: TS -> SS -> DSElia

225 Transformator stations

HS

300.000 LV feeders2.500.000

Customers

LS

AIT Industry Day1 october 2014

770 Switchingsubstations

28500 Distribution Substations

14000 Customer

Substations

Smart Grids : some slides?

AIT Industry Day1 october 2014

Smart Grid in Eandis:

AIT Industry Day1 october 2014

Active networkManagement

Network Operation

AssetManagement

• More measurements

• Data quality

• Network Calculations

• Real time operations

• Current Netstatus

• Optimising network investments and exploitation

Smart Grid

At conferences

Smart Grid

At the DSO

Eandis Smart Grids Program

AIT Industry Day1 october 2014

Smart Netelements

Smart Architecture MS

Distribution Management Systems

AssetManagement

Network Operation

Active Network

Mgmt

Eandis Smart Grids Program

AIT Industry Day1 october 2014

Smart Netelements AssetManagement

2012: Substation Automation PoC

Improve investment planning and assetmanagement

Minimize network losses Improve voltage regulation Extend capacity for decentralised

production Improve fault localisation and

restoration

Distribution substations Measurements to DMS Remote Fault current indication Remote Switching via DMS State estimation in DMS

Installation of 70 substations in fourdistribution networks

MS LS

TM

TB/TS

KSV

1 october 2014 AIT Industry Day

Final design: Telecontrolled substation

AIT Industry Day1 october 2014

Uni

vers

eel

conn

ecto

r

RMU (MV-cell)

Fault current

indicator

Motor isationRemote switching

SignalingSignalisation

LV-bords (Integrated TI)

Con

nect

orLS

m

etin

g (k

orts

luitm

ogel

ijkhe

id T

i)N L1 L2 L3

Ti Ti Ti

400V

N L1 L2 L3

230V

(Opt.)

Ti Ti Ti

Telecom

RTU

I/O

Modbus of equivalent

Meter

Secundair 400V

Meter

Secundair 230V

(Optioneel)

UPS (FCI, Telecontrol)U

nive

rsee

l co

nnec

tor

Connector PQ

230VConnector PQ

400V

Measurements

Con

nect

or L

S m

easu

rem

ent

Some ideas did not make it…

AIT Industry Day1 october 2014

Measurements on LV feeders

Replaced by an aggregatedmeasurement on the LV side of the transformer

Extensive Power quality measurements

Basic measurements were included(U, I, P, Q en cos Phi)

-> Some power quality measurements wereincluded at no extra cost (THD, Flicker)

Final implementation: Phoenix Contact

AIT Industry Day1 october 2014

2015: Distributiecabines uitrol @ 100/jaar2013: PoC 70 cabines in 4 lussen

Lessons learned: Connectors/testconnectors

AIT Industry Day1 october 2014

Driver: reduce investments/increase visibility

AIT Industry Day1 october 2014

1% - complex networks

4% - Semi complex networks

37 % - Straight networks

58 % - Simple Networks

Voltage Regulated Distribution Transformers

Regulateddistributiontransformers: Increase the voltage

variation on LV Compensate the

voltage fluctuationon MV

+/-10 % voltage variation to beused completelyon LV

Increase the capacity for Dec. Production

1 october 2014 AIT Industry Day

Example measurements

Distribution substation: 7%

Customer: 18%

1 october 2014 AIT Industry Day

• Cogenerationinjecting on MV

• Long LS feeders

• PV injecting on LV

Market analysis

On Load Tap Changer (OLTC) Motorized change of tap while on

load Technology of Machinenfabrik

Reinhausen (MR), also applied bydifferent vendors e.g. Siemens en CG

Booster Technologie Extra Coils on MV regulate the

voltage Patented solution presented by

Schneider

1 october 2014 AIT Industry Day

Market analysis

Magnetic voltage regulation Saturation of the core Presented by Magtech Expensive solution

Retain the existing transformer Extra Coils on LV regulated the

voltage Supplied by A-Eberlee Extra cabinet in substation,

increasing the size

1 october 2014 AIT Industry Day

Schneider - Minera Sgrid

Technische Specifications Booster Technology Vermogen: 400kVA Afmetingen: 1350x830x1550

– Standaard: 1250x850x1300 Tapstanden

– ON-Load: ± 2 x 2,5%– OFF-Load: ± 2 x 2,5%

1 october 2014 AIT Industry Day

Control Algorithms

AIT Industry Day1 october 2014

Phase 1: Local Algorithms Standard Algorithms Implemented in Control Box Stable LV output voltage Voltage drop (correction based on

current measurement)

Phase 2: Centralised Algorithm Development necessary Implemented in DMS Setpoint transformer based on

Voltage Measurements in the grid

Summary

AIT Industry Day1 october 2014