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Eandis IEC61850
Next steps
27 September 2017
Distribution Grid Operator
Producers Electricity
Import Natural Gas
Elia
Fluxys
Suppliers
Customers
Regulator
CREG / VREG
Eandis in the Energy market
27 September 2017 IEC 61850 Europe - Amsterdam2
Eandis Network: TS -> SS -> DS
Elia
225 Transformator
stations
HS
300.000 LV
feeders2.500.000
Customers
LS
IEC 61850 Europe - Amsterdam
770 Switching
substations
28500
Distribution
Substations
14000
Customer
Substations
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Introduction Eandis and substation concept
IEC 61850 Europe - Amsterdam
HV/MV primary substation - TS MV secondary substation - SS
Double busbar cubicle Single busbar cubicle
2 or 3 busbar linear sections 2 to 4 busbar sections in O-shape
Always involving ELIA
Possibly involving other DNO(’s)
Rarely involving other DNO(‘s)
All position indications, measurements, alarms
and control signals implemented using classical wiring
(no experience with substation protocols, eg 103)
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Decentralised production systems
> 1 MVA or when N-1 situation is not guaranteed
IEC 61850 Europe - Amsterdam27 September 20175
Protection IED in Distribution substations
IEC 61850 Europe - Amsterdam27 September 2017
SP
A150
Cu35
Circuit Breaker
6
Implementation of UFLS using IEC61850
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▪ Legacy Transformer Substations: no IEC61850
➢ Trip transformer CBR in case of frequency drop
➢ Partial clearing of feeders before reclosing transformer CBR
PRIO PRIO PRIO PRIO
▪ Under Frequency Load Shedding with IEC61850
➢ Partial clearing of feeders
➢ Prioritairy feeders → no zero pass through
PRIO PRIO
Implementation of UFLS using IEC61850
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▪ Automated script determining the group setting for
every feeder in the transformer substation
➢ GROUP 1: non-priority feeders (passif feeders)
➢ GROUP 0: priority feeders (e.g. hospital)
▪ Script runs periodically (every month)
▪ UFLS setting group is send using the IEC60870-5-104
IEC60870-5-104
Group0
PRIO
Group1
No PRIO
IEC61850Group1
No PRIO
Group1
No PRIO
Implementation of UFLS using IEC61850
9 IEC 61850 Europe - Amsterdam27 September 2017
f<
&In / UitIn = 1
&
Feeder1 IED
grp 1 = 1
Interfacekast DNB- ELIA (DNB)
Interface IED
Block UFLS
HS
ELIA
DNB
ELIA
DNB
Ontlasting f< (Elia)
MS
&
U<
f1<
&
U<
f1<
≥1
TP K IED
7SJ62
TP L IED
7SJ62UFLS grp0/1
&
Feeder2 IED
grp 1 = 1
UFLS grp0/1
&
Feeder n IED
grp 1 = 1
UFLS grp0/1
&
Copper
IEC61850
Alarm= Acknowledgement
receiving Elia command for shedding
Puls ≥ 100ms
TSO
DSO
DSO
TSO
Implementation of UFLS using IEC61850
10 IEC 61850 Europe - Amsterdam27 September 2017
▪ Commissioning & maintenance aspects
➢ Reducing the risk of unwanted Trips
▪ Arming principle of DSO function
▪ VT – IED’ s have under frequency criteria
▪ Send pick up through GOOSE
▪ Interface IED is armed on pick up
➢ Possibility to test UFLS in live substation
▪ Implementation of generic BLOCK UFLS GOOSE signal
▪ Function key on interface IED sets BLOCK signal high
▪ “Live” feeder IED’ s will ignore the Trip signal
▪ Using key on Feeder IED you are able to test UFLS TRIP
Implementation of UFLS using IEC61850
11 IEC 61850 Europe - Amsterdam27 September 2017
▪ DSO pick up @ 49,8 Hz
▪ TSO pick up @ 49 Hz
➢ TSO → DSO: 10 ms (high speed relay)
▪ Processing time IED: 6 ms
▪ DSO- SAS reaction time: 44 ms (incl. CBR’ s)
Added value UFLS using IEC61850
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▪ Flexibile and selective solution
➢ Priority of feeders can change in time
➢ no zero pass through Prio Feeders
▪ Reaction time E2E: 44 ms (incl. CBR trip)
➢ Total time Trip TSO → Trip DSO: 54 ms
▪ Need to implement GGIO GOOSE message(s)
➢ For commissioning and maintenance purposes
➢ Should be integrated in test mode
Transition to IEC61850: take the plunge
IEC 61850 Europe - Amsterdam
➢ 2011: POC (multi vendor)
➢Multivendor works
➢Many different toolings: too complex on DSO scale
➢ 2012: European Tender
➢Single sourcing (IED, RTU, Switch)
➢ 2013 – 2017: IEC61850
• 75 x MV secondary substations
• 12 x HV/MV primary substations
• 145 x Dec. production units
• 35 x Distr. Substations with OC
➢ What’ s next?
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Existing substations Eandis
IEC 61850 Europe - Amsterdam
Single vendor (IED and RTU)
IEC61850 Ed. 1
Client server implemented for reporting
Dynamic datasets possible
Engineering process
•Only 2 configuration tools required (RTU / IED)
•No .scd transfer between tools necessary
GOOSE implemented for interlocking and
protection schemes
Conventional VT and CT
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IEC61850: research topics for Eandis
IEC 61850 Europe - Amsterdam
Interoperability with installed base
IEC61850 Ed. 1 vs Ed. 2
Engineering process
Dynamic vs Static datasets
Single vs Multi vendor
Inter-substation
Sampled values
Non- conventional sensors
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IEC61850: research topics for Eandis
IEC 61850 Europe - Amsterdam27 September 201716
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Expanding existing substation
Case 1: Integrating new IED’ s in existing substation
Tr(A)
K(X) TP(L)
Tr(B)
TP(K)
F1 F2 F3
Rail K (front)
Rail L (rear)
INTERFACE CABINET
10.130.254.baynr / 24
10.130.254.90
Interoperability with installed base
▪ 3 different IED vendors
▪ Interlocking using GOOSE
▪ Engineering process (GOOSE)
▪ Ed1 vs Ed 2
▪ Dynamic / static datasets
FX FX FX
IED
X
IED
Y
IED
Z
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Greenfield conditions
Case 2: New IED on new RTU
10.130.254.baynr / 24
IED
X
IED
Z
IED
Y
Tr(A)
K(X) TP(L)
Tr(B)
TP(K)
F1 F2 F3
Rail K (front)
Rail L (rear)
IED <-> RTU (DMS)
RTU A RTU B RTU C
Greenfield (RTU – IED)
▪ 3 IED vendors
▪ 4 RTU vendors
▪ MMS communication
▪ Engineering process (MMS)
▪ Dynamic / static datasets
RTU D
Challenges for Eandis & industry
•Dynamic datasets
➢Nice feature for future data needs
➢However not widespread on market
➢ Issues with association process
▪ need for flexible RTU (/IED) vendor
▪ Conformance testing
•Datamodel specification
➢How to impose Top down datamodel on vendors
▪ Every vendor has own LD/LN hierarchy
▪ Readability: user-specific “Prefix” to LN name
•Engineering process
➢Trying to avoid need for SCT tool for every project
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Challenges for Eandis & industry
• Combination of generations of equipment
➢ Single sourcing multi source environment
• Implementing ed. 2 not possible installed substation
➢ IED’ s have to be multi – edition
• Put specific functions of IED in ‘test mode’:
➢ Not possible now: so specific GGIO GOOSE messages!
➢ Industry has to implement more advanced test modes
• “Semi Automated” Asset management:
➢ E.g. firm versions
➢ Protection thresholds
• future use cases @ DSO?
➢ Inter substation GOOSE
➢ Sampled values
➢ Control room to substation IEC61850
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Conclusion: Integrating IEC61850 @ Eandis
Key success factors @ Eandis:
➢Standardisation (Prim. & Sec. equipment)
➢Time & resources to gain expertise
➢In house engineering
➢Involvement from decision makers to adopters
➢Good, easy to use software tools
➢Firmware freeze
➢KISS: Keep It Simple Stupid
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