7/29/2019 FacilityLong2C KEMA

1/2

Researchinfrastrusture(s):

KEMA KEMANederland

KEMAisanindependentcompanywithaninternational

reputationforhighleveltechnicalandbusinessconsultancy,

testing,inspections,certificationandresearchforbusinesses

intheenergyindustry,assistingover500clientsinmore

than70countries.KEMAhasestablishedofficesand

subsidiariesworldwideandemploysaround1,500fulltime

professionalsandleadingexpertsinmanyfacetsofthe

electricityindustry.With80yearsofexperience,KEMA

appliesglobalexperienceandregionalinsightinservingthe

completespectrumofparticipantsintheenergy

marketplaceandoffersafullrangeofservices.

InmanyEuropeancountries,ourexpertsconsultingteams

andresearchershavetakenaleadingroleinassisting

governments,agencies,utilitiesandcustomerswithitems

likerenewableenergy,energystorageandactualtopics

relatedtoCO2emissionandinnovativegridsolutions.KEMA

isoneoftheinitiatorsoftheEuropeanTechnologyPlatform

SmartGridsprogramme.

KEMAs

CEO

is

at

present

chaiman

ofthisplatform.KEMAhasbeenbuildingthePower

ElectronicLab(2008)andwilloperatethislabtogetherwith

ECN,UniversityofDelftandUniversityof

Eindhoven.

KEMAisinvolvedinnumerousrelevantEuropean(research)

projects.

WithintheDERRIprojectKEMAwillcontributeintestingof

largescaleRESinverters.KEMAwillprovideresearchaccess

tothealmostfinishedpublicprivatePowerElectronicsLab,

builtaroundauniquemediumvoltagebacktoback

converterthatcansimulateaprogrammablegridorload.

Web: www.kema.com

(NL)

PowerElectronicsLab (Arnhem)

ThePowerElectronicsLab(PEL)inArnhemtakesaunique

positionintheworldbecauseofthevoltageandpower

range.Firstofallitisessentialtounderstandthatthis

laboratoryisnotlikeanyofthealreadyexistingKEMA

laboratories,not

in

functionality,

purpose

nor

organisational

structure.Thelaboratoryisowned,andwillberun,bythe

independentfoundationcalledthe"stichtingEMVT

laboratorium".KEMAhas50%shareinthisfoundationand

thedutchgovernmenttheother50%.Theuseofthe

laboratoryfacilitieswillthereforealsoreflectthisratioand

beavailabletoKEMAfor50%ofthetimeatcommercial

ratesand50%ofthetimeforresearchactivities

coordinatedbyaDutchresearchinstituteonenergy,ECN,

togetherwith

the

technical

universities

in

Delft

and

Eindhoven.

Thelaboratoryinfrastructurehasbeendesignedtoenablea

varietyofelectricalcircuits,includingtheoptiontocirculate

powerwithinthelaboratorybyconnectingthevirtualgrid,

throughthedeviceundertest,backtothefeedinggrid.

Alternativelyalargediversityofpassiveloadsareavailablein

thelabandalreadysetuptobeeasilyconnectedtotestany

circuit.

Afullyequippedmeasuringsystemisprovidedinthesafety

ofthecommandroom.Moreover,thecommandroom

overlooksthelaboratoryflooronwhichthedeviceunder

testisclearlyvisible.Thelaboratoryisbuiltaroundafully

programmablepowerelectronicsconverterthatcaneither

createacustom

PQ

grid

or

represent

acustom

load.

The

specificationsofthiscentralpieceofequipmentare:

Threephase(plusneutralwire)powersystematlineline

voltagesupto3.3kV(3phasesindependentlycontrollable);

Bidirectionalpowerflowcapabilityof1MVA(four

quadrantoperation);

FundamentalpowerfrequencyadjustablefromDC 75Hz;

Overloadcapability1.25p.u.@10s,3p.u.@1s;

Harmonicvoltagedistortionupto2400Hz;

Dips,unbalance,voltageandfrequencyvariations,

interruptions.

Thelaboratoryisequippedwithflexibleresistive(0.5MW),

inductive(1MVAr)andcapacitive(1MVAr)loadsanda

connectionto

the

utility

grid

with

off

load

tap

changer

(400

V...4kV)toprovidemaximumflexibilityforR&Dandtesting.

Thegridhastwomainoperationmodes:

1)Firstisthebasicstaticoperationmodewithafixed

fundamentalfrequency,inwhichitispossibleto

superimposeawidevarietyofharmonicdistortionsontop

ofthebasefrequencytosimulateabadlypollutedgrid,ora

badlypollutedload(inreversepowerflowdirection).These

amplitudesofthefundamentalfrequency,aswellasthatof

theharmonicsvoltages,canbevariedonlineandareclosed

loopcontrolledtoalargeextent.

2)Secondly,thereisthedynamicmodeofoperation.Inthis

operationmodeallkindsofothergridphenomenacanbe

produced,e.g.voltageandfrequencyvariationswiththe

abilityto

include

voltage

dips,

phase

jumps

and

rapid

voltage

changes.

Theprogrammedgridwillalsobecapableofcopingwith

unbalancedloads/sourcesandstillprovidethecapabilityto

superimposeharmonicvoltagesandinstigatedynamic

networkphenomenaontoit.

Forthefutureitisenvisionedtocreateaconnectiontoa

RealTimeDigitalSimulator(RTDS)whichislocatedinDelft

UniversityofTechnologytofurtherfacilitateresearchonthe

interactionbetweenDERunitsandthepowersystem.

Web: www.kema.com

Contact:

PeterVaessen

Tel:

Email:peter.vaessen@kema.com

Printed:17052010

7/29/2019 FacilityLong2C KEMA

2/2

Printed:17052010