ideal grid for all

Østkraft Demo Site

Torben Vesth Hansen

ØSTKRAFT Holding A/S,

Denmark

tvh@oestkraft.dk

IDE4L Symposium, Brescia18th May 2016

ideal grid for all 18/05/2016 WWW.IDE4L.EU – IDE4L Symposium, BresciaSLIDE 2

• Østkraft distribution network

• Demo deployment

• Demo results

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ØSTKRAFT (LV network)

ASSETS:• 1 Secondary substation

• 4 LV feeders

• 126 customers• 12 PV

• 10 HP

• 2 Direct heating

LV USE CASES:• Monitoring

• Load and Production Forecaster

• State Estimator

ideal grid for all 18/05/2016 WWW.IDE4L.EU – IDE4L Symposium, BresciaSLIDE 4

ØSTKRAFT (LV network)

LV – Feeders

Smart meter Concentrator

LV monitoring

Substation29 Tejn

SSAU

ideal grid for all 18/05/2016 WWW.IDE4L.EU – IDE4L Symposium, BresciaSLIDE 5

ASSETS:• 1 Primary substation

• 2 Secondary substations

• 1 MV feeder

MV USE CASES:• FLISR

ØSTKRAFT (MV network)

ideal grid for all 18/05/2016 WWW.IDE4L.EU – IDE4L Symposium, BresciaSLIDE 6

MV switch gear29 Tejn

MV monitoring and control equipment29 Tejn

ØSTKRAFT (MV network)

ideal grid for all 18/05/2016 WWW.IDE4L.EU – IDE4L Symposium, BresciaSLIDE 7

• Østkraft distribution network

• Demo deployment

• Demo results

ideal grid for all

Placement of Smart Meters

• Measurements aggregate 3ph values of load and production

• Influence on LF

• Differences in phase values are unnoticed

• Concept remain validHowever decreased accuracy of LF

• In case of missing measurements, LF provide backup from historian values

18/05/2016 WWW.IDE4L.EU – IDE4L Symposium, BresciaSLIDE 8

ideal grid for all

Measurement interval

• SM measurements arrive in SSAU once per day• Active power has 5. min. resolution

• Non-realtime but not critical

• SE gets pseudo-inputs from LF instead of SM• No direct connection to field measurements

• Voltage measurement at substation• Only parameter that updates during the day in

realtime

18/05/2016 WWW.IDE4L.EU – IDE4L Symposium, BresciaSLIDE 9

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SAU specs• Cost-efficient SAU PC with minimal specs

• Industrial PC, Model Simatic IPC227D

• 250GB HDD, Intel Atom Processor E640 (512 kB cache, 1.0 GHz), 1 GB RAM

• Closed cabinetno active cooling

• 40 W power supply

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Execution times

• AIMIS software ca. 15 minutes (1/day)• Begins 4 AM to collect from previous day

• LF ca. 45 minutes for 126 load profiles (1/day)• Profiles on new data are finished at 5 AM

• LF time horizon is 30h to provide backup

• SE ca. 60-150 seconds to run (1/30. min)

• Slower than anticipated due to PC specs

ideal grid for all

Deployment LV• Issues with voltage measurement at substation

• Reference point for SE voltage

• Varying amount of historian data for customers as input to LF

• Solar irradiation not available for PV forecasts• LF forecasts combined load and production

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ideal grid for all

Deployment MV• Delays with programming

• Tests done in lab

• To be tested in field

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• Østkraft distribution network

• Demo deployment

• Demo results

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• ‘Regular’ customer

• Two days in AprilFriday and Saturday

• Continuity in forecasts

• Accurate forecasts

• KPIhour: Root Mean Square Error (RMSE)=0.0580 kW

Load Forecast results (1)

ideal grid for all 18/05/2016 WWW.IDE4L.EU – IDE4L Symposium, BresciaSLIDE 16

New forecast New forecast

5 min measurments compared to the forecast

Measurements aggregated to 1 hour values compared to the forecast

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• HP customer (Air/water)

• Four days in AprilWednesday - Saturday

• High volatility in HP consumption

• Difficult to predict behavior

• KPIhour: Root Mean Square Error (RMSE)= 0.5055 kW

Load Forecast results (2)

ideal grid for all SLIDE 18 WWW.IDE4L.EU – IDE4L Symposium, Brescia

New forecast New forecast

18/05/2016

5 min measurments compared to the forecast

Measurements aggregated to 1 hour values compared to the forecast

ideal grid for all

Thank you!

www.ide4l.eu