CONDITION BASED MAINTENANCE

Utilising substation data to drive predictive and remote maintenance of digital substation assets

Identifying the most useful sources of data to extract a variety of condition based maintenance activities

Anders Johnsson, Vattenfall Eldistribution AB, Sweden

IntelliSub2018, Düsseldorf, April 11

IST WP3 Organisation & Processer, Aktivitet A2 I Annika Larsson 2016-04-28Confidentiality - Medium (C2) 1DRAFT

INNEHÅLL▪ Bakgrund / Resultat från förstudie

▪ Scope för piloten (BUC Asset Health Analytics)

▪ SGAM

▪ Översikt teknisk lösning (Separat underhålls-GW)

▪ Engineering

▪ Informationsmodeller (Kopplingen mellan 61850 och CIM, CIMs stöd för

att hålla isär Asset, Equipment + Measurements)

▪ Slutsatser (Möjlig utökning till fler BUC, möjligheter med Open source)

BACKGROUND -DRIVERS FOR CONDITION MONITORING

3

▪ Maintenance and Asset management - More accurate maintenance through analysis of online information at central level

▪ Operation – Decision support through asset health information

▪ IT - Standardized information exchange from station to central level to avoid increasing costs linked to complex integrations

BACKGROUND - PRESTUDY▪ … to present a suitable scope of a pilot installation based

on the IEC TC57 reference architecture concept.

▪ The pre-study aimed to propose a realistic scope, i.e. the scope should be as limited as possible while at the same time enabling the main parts of the concept to be tested.

▪ Next step is to use the results to perform a pilot installation.

4

Stat

ion

Fiel

dO

per

atio

nEn

terp

riseProcess

HMIAnalyssystem

Processinformationssystem Historisk

IED

RTU/Gateway

Externa Molntjänster

Centralt SCADA-system Drift

GIS/NISUH-System

Server för Störningsskrivarfiler

Central CMS

Processinformationssystem Realtid

Sensorer/GivareBrytare/Frånskiljare

BACKGROUND-INFORMATION

5

▪ Integrations at all system levels

▪ Heterogeneous system environment

▪ Communication level

▪ Data Level

▪ Fair analysis needs a common understanding

▪ Standardization -> corner stone for enabling trust in advanced analytics

Selected Business Use Case:

▪ Mandatory – Collect and store process information at central level and make available for Asset Health Index calculation on breakers

▪ Information exchange shall be based on IEC 61850 and CIM

▪ Optional - Make also Maintenance and GIS/NIS information available for Asset Health Index calculation

▪ Information exchange shall be based on CIM

PILOT SCOPE Pilot use case criteria:

▪ Station object where online condition monitoring has a strong business case

▪ Addresses a broad spectra as possible of the proposed reference architecture

▪ Aline with the in-house knowledge regarding methods for asset health index calculations

▪ Realistic to implement within six months

Selected System Use Case:

Mandatory

▪ Associate measurements to breaker asset

▪ Publish Equipment State

▪ Publish Measurement Values

▪ Publish Disturbance Information

REFERENCE ARCHITECTURE TO SUPPORT INFORMATION EXCHANGE

FROM PROCESS TO CENTRAL CONDITION MONITORING SYSTEM

7

Stat

ion

Fie

ldO

per

atio

nEn

terp

rise

Process

HMIAnalyss system

Process information system-Historian

IED

RTU/Gateway

External cloudservices

Central SCADA system

GIS/NISMaintenance

Server for fault recordings

Central CM

Process information system-Realtime

SensorsBreaker

61850

61850

61850

CIM

CIM

CIM

CIM

CIM

Example - Information exchange for

calculation of Asset Health Index – Breaker

• Creation of realtime Process information

• Reporting of disturbance recordning files

• Creation of historic process information

• Make process information and

disturbance records available for

analysis system

• Make asset information available for

analysis system

• Provide calculated AHI för maintenance.

BACKGROUND - REFERENCE ARCHITECTURE HMIAnalyssystem

Real-Time Data Historian

SCADA

GIS/NIS

Maintenance

Disturbance recorder file database

CentralCMS

Real-Time Data Base

Enterprise Service Bus - Enterprise

Enterprise Service Bus - Operation

IEC61850

CIM

DB

Application x

DB

Application y

System A System B

CIM

AD

AP

TER

AD

AP

TER

▪ IEC 61850▪ CIM

▪ ESB▪ Adapters

Utility Communication Network

IED 1 RIO 2

1

2

Test environment

SCADA

5

Pilot SCADA

ESB Zon 3GIS,NIS/CIM

Maintenance/CIM 3,5

4

RTDHAnalys

1,2,3,4,51,2

zone 2

Zone 3

XML XML

IED 2 IED 3

2

1,2

ESB Zon 2

IEC 61850 GW

SCADA/CIMAdapter

1

UCN Router

RTU

1

RIO 1

Station Switch

IEC 61850/CIMAdapter

2

9

• Pilot Infrastructure (Scalable):• IEC 61850 -> CIM Adapter

• SCADA -> CIM Adapter

• ESB zone 2, ESB zone 3

• ESB Zone 3 to ESB Zone 4 (VIP)

• POC (no requirements regarding scaling): • Real-time Data Historian

• Application for Asset Health Analytics

• RIO for continuous measurement values

• Optional/Next step • GIS/NIS -> CIM Adapter

• Maintenance system -> CIM Adapter

• Calculated AHI to SCADA and Maintenance system

• Limitations• No integration with real Maintenance system

• No integration with real GIS/NIS

• Development of Asset Health algorithm is outside Scope

Pilot

Pilot

Pilot

Pilot

POC POC

Mandatory

Optional

As is

SCOPE – ARCHITECTURAL

RIO2

POC

Pilot

RIO1

POC

(1) As-is process information

(2) Process information for AH

(3) Static maintenance information

(4) Geographical information

(5) Calculated Asset Health Index

SOURCES OF DATA

Utility Communication Network

IED 1 RIO 2

1

2

Test environment

SCADA

5

Pilot SCADA

ESB Zon 3GIS,NIS/CIM

Maintenance/CIM 3,5

4

RTDHAnalys

1,2,3,4,51,2

zone 2

Zone 3

XML XML

IED 2 IED 3

2

1,2

ESB Zon 2

IEC 61850 GW

SCADA/CIMAdapter

1

UCN Router

RTU

1

RIO 1

Station Switch

IEC 61850/CIMAdapter

2

X-R

efer

ence

D

B

Analytics

ESB

IEC 61850Adapter

ENGINEERING

Station IEDs

Station bus IEC 61850

IEC 61850 GW - Client

IEC 61850 GW - Server

UCN - IEC 61850

Rule Based Mapping61850 SCD <-> CIM XSD

CIM

• Use-case specific datasets and RCBs in CID• SCD-file to configure GW - client Side

• SCD-file and recommendation in IEC 61850 90-2 to configure GW - server side

• Central Configuration using CC-SCL file• Station name -> Find right station SCD file.• GW name -> Create the correct mapping between meas and Eq• IP address for GW -> connect to right GW• RCB -> subscribe to needed signals

• Using SCD as configuration source at central level will enable automatic mapping betweenmeasurements and equipment.

Mapping

tool

GW-Name SCD-file

• Rule based mapping using IEC 61850 SCL and CIM XSD

Equipment Asset

Measurement

RULE BASED MAPPING BETWEEN INFORMATION MODELS

IEC 61850 SCL CIM XSD

VolgateLevel VoltageLevel

Substation Substation

tBay Bay

ConductingEquipent-CBR

Breaker

ConductingEquipent-DIS Disconnector

PowerTransformer-PTR PowerTransformer

IEC 61850 SCL CIM XSD

FC = MX AnalogValue

FC = ST DescreateValue

EPRI Recommendations

Next Step! CIM XSD

Next Step! Asset

EPRI Recommendations

Important of clean separation betweenviewpoints in Asset Health Analytics!

CONCLUSIONSAccess to data

▪ Analytic application for Asset Health Index provided with access to up-to-date as well as historical process information.

▪ According to IEC TC57 reference architecture.

▪ Method and solutions can be reused for other applications.

Information exchange

▪ CIM with Enterprise Service Bus (ESB) to avoid exponentially increased cost related to system integration

▪ Architecture supports step-by-step implementation by use of CIM-adapters.

CONCLUSIONS (2)Configuration

▪ Enabling configuration and use of IEC 61850/CIM gateway to transfer data from substation automation systems to central systems

▪ IEC 61850 and CIM fulfils the need and are used by others.

Association and mapping of data

▪ Utilising SCL to associate substation data with CIM asset, equipment and measurements

▪ Tools for system maintenance is already in place.

▪ Analyssystemet har tillgång till aktuell samt historik processinformation.

▪ Analytic application shall have access to up-to-date as well as historic process information.

▪ All processinformation samt anläggningshälsoindex är kopplat/associerat till rätt brytarindivid i anläggningen.

▪ All process information including Asset Health Index shall be associated/connected to the right station object individual.

▪ Det går att skapa trender för AHI samt för enskild tillståndsinformation relaterad till brytaren

▪ It shall be possible to create trends for Asset Health Index including condition monitoring information.

▪ Det historiska processinformationssystemet innehåller aktuell information genom händelsebaserat informationsutbyte från processen

▪ Up-to-date process information will be stored in the Historic Real Time Database by event based (report/publish) message exchange principle

SUCCESS CRITERIA

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▪ Architecture complies with TC57 principles

▪ Data exchange between systems at central level are based on

CIM.

▪ Already existing IEDs and new IEDs (RIO) can be configured using

IEC 61850 substation configuration tools.

▪ Update and configuration of IEC 61850/CIM adapter using SCL

files.

▪ Comply Vattenfall directive for IT Security Architecture for Plant

and Distribution Operation (ISMS109)

DS-WP3 I David Erol, Vincent Gliniewicz Confidentiality - Medium (C2)

QUESTIONS?

anders.johnsson@vattenfall.com

IST WP3 Organisation & Processer, Aktivitet A2 I Annika Larsson 2016-04-28Confidentiality - Medium (C2) 16