Smart Grid at the DSO - Eandis. 1 oktober 2014

Transcription

1 Smart Grid at the DSO - Eandis 1 oktober 2014

2 Eandis in the Energy market Regulator CREG / VREG Producers Electricity Import Natural Gas Elia Distribution Grid Operator Fluxys Suppliers Customers

3 Eandis Network: TS -> SS -> DS Elia HS Customer Substations 225 Transformator stations 770 Switching substations LS Distribution Substations Customers LV feeders

4 Smart Grids : some slides?

5 Smart Grid in Eandis: Optimising network investments and exploitation Smart Grid At conferences Active network Management Asset Management Network Operation Smart Grid At the DSO More measurements Data quality Real time operations Current Netstatus Network Calculations

6 Eandis Smart Grids Program Smart Architecture MS Active Network Mgmt Distribution Management Systems Network Operation Smart Netelements Asset Management

7 Eandis Smart Grids Program Smart Netelements Asset Management

8 2012: Substation Automation PoC Distribution substations Measurements to DMS Remote Fault current indication Remote Switching via DMS State estimation in DMS Installation of 70 substations in four distribution networks Improve investment planning and asset management Minimize network losses Improve voltage regulation Extend capacity for decentralised production Improve fault localisation and restoration MS LS TB/TS KSV TM

9 Final design: Telecontrolled substation Telecom Measurements Fault current indicator RMU (MV-cell) RTU I/O Modbus of equivalent Universeel connector Universeel connector Remote switching Signalisation Motor isation Signaling Meter Meter Secundair 400V Secundair 230V (Optioneel) UPS (FCI, Telecontrol) Connector LS measurement Connector LS meting (kortsluitmogelijkheid Ti) Ti Ti Ti Ti Ti Ti 400V 230V Connector PQ 400V Connector PQ 230V N L1 L2 L3 N L1 L2 L3 (Opt.) LV-bords (Integrated TI)

10 Some ideas did not make it Measurements on LV feeders Replaced by an aggregated measurement 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 were included at no extra cost (THD, Flicker)

11 Final implementation: Phoenix Contact 2015: Distributiecabines 100/jaar 2013: PoC 70 cabines in 4 lussen

12 Lessons learned: Connectors/testconnectors

13 Driver: reduce investments/increase visibility 1% - complex networks 4% - Semi complex networks 58 % - Simple Networks 37 % - Straight networks

14 Voltage Regulated Distribution Transformers Regulated distribution transformers: Increase the voltage variation on LV Compensate the voltage fluctuation on MV +/-10 % voltage variation to be used completely on LV Increase the capacity for Dec. Production

15 Example measurements Distribution substation: 7% Cogeneration injecting on MV Customer: 18% Long LS feeders PV injecting on LV

16 Market analysis On Load Tap Changer (OLTC) Motorized change of tap while on load Technology of Machinenfabrik Reinhausen (MR), also applied by different vendors e.g. Siemens en CG Booster Technologie Extra Coils on MV regulate the voltage Patented solution presented by Schneider

17 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

18 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%

19 Control Algorithms 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

20 Summary