Final presentation Intelligent distribution station (IOP-EMVT 06101) · Final presentation Intelligent distribution station (IOP-EMVT 06101) Josco Kester. Presented at Alliander,

Final presentation Intelligent distribution station (IOP-EMVT 06101)

Josco Kester

Presented at Alliander, December 21st, Arnhem,The Netherlands

ECN-L--11-015 January 2011

IOP-EMVT 06101 intelligent distributie station

Josco C.P. Kester (MSc)ECN Intelligent Energy Grids ([email protected])

Final presentation Intelligent distributie station(IOP-EMVT 06101)

IOP-EMVT 06101 intelligent distributie station [email protected]

Smart Substation

by improving• load profile• reliability• power quality

supports LV grids

with distributed generation

and demand peaks


Project phases

• Requirements

• Functional Design

• Detailed Design

• Assembly

• Laboratory test

• Field demonstration


Load profile

Peak load: - 30% (simulation)

PowerMatcherSupply Demand Matching


Reliability

• Decrease peak loads

• Coordination of local supply

• UPS function


Power Quality

Resonances: - 70% (simulation)

Harmonic CompensationusingVirtual Resistive Harm. Dampening (VRHD)


Inside the prototype

LV Cabinet MV Cabinet


LV-cabinet


MV cabinet


Lab tests in FPG-Lab

May 2009 – February 2010


FPG-Lab: fault ride through (anti-islanding mode)

<1ms, 100%, 10kV, symmetrical three-phase, voltage dipat IntDS passive load of 470kVA (115kW) and ESI charging at 7kVA


FPG-Lab: islanding

ESI System operating in islanding mode after removal of MV supply(passive resistive load of 20kW applied)


Tests FPG-Lab: results

• safe operation possible

• harmonic compensation reduces harmonics

• intDS supports island operation

• protection issues in laboratory set-up

• APPROVED for field operation


Field demonstration

Apeldoorn, Het Kasteel (Jun 2010 - )


Field demonstration


Field demonstrationTested:• stable operation• harmonic compensation• voltage stability• flicker reduction

Not tested:• controlling microCHPs• active power control (in preparation)


Field demonstration: PQ classification

17

A - very goodC - sufficientF - very bad


Field demonstration: Reference PQ (wk20)

18

V (dips) Δfreq flicker THD unbalance

Not available

Connection.error


Field demonstration: Reference harmonics (wk20)

THD 3rd 5th 7th 11th 13th

All PQ characteristics within limits


Field demonstration: PQ

V (dips) Δfreq. Flicker THD Unb.

17-19 prep

20 ref

21-26 V

29 harm

30 ref

35-39 V

42-43 flicker


Field demonstration: harmonics

THD 3rd 5th 7th 11th 13th

17-19 prep

20 ref

21-26 V

29 harm

30 ref

35-36 V

42-43 flicker


Field demonstration: THD

Reference Harmonic compensation

THD reduced by 15%


Field demonstration: 3rd Harmonic


3rd harmonic not reduced (very low)


Field demonstration: 5th harmonic


5th harmonic reduced by 20%


Field demonstration: 7th harmonic


7th harmonic reduced by 15%


Field demonstration: flicker

Reference Flicker reduction

Flicker reduced from max 0.4 to max 0.2


Field demonstration: voltage stabilityReference Voltage Control

Voltage excursions reduced from +/- 4 V to +/- 0.8 V


Spin-off

• Imtech: Smart Trafo

• Exendis: ESI

• KEMA: FPG-Lab

• Alliander: test environment

• ECN: PowerMatcher

• Eaton, Alfen: sustainable electricity supply


Spin-off

• Imtech: Smart Trafo

• Exendis: ESI

• KEMA: FPG-Lab

• Alliander: test environment

• ECN: PowerMatcher

• Eaton, Alfen: sustainable electricity supply


Conclusions

• Lab tests• anti-islanding and islanding tested and approved• specifications tested and documented • approved for field operation

• Field demonstration • tests with microCHPs not possible • active power control not yet working• smart substation has operated without incidents since June 2010• voltage stability improved • THD improved• flicker improved

• International interest for intDS and components

Documents

Final presentation Intelligent distribution station (IOP-EMVT 06101) · Final presentation Intelligent distribution station (IOP-EMVT 06101) Josco Kester. Presented at Alliander,