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Substation Integration and Automation Approaches and Best PracticesIEEE PES Chicago Chapter 1

IEEE PES Chicago Chapter

ComEd Commercial CenterOak Brook, Illinois

Wednesday, March 12, 2003

John McDonald

KEMA Consulting

Substation Integration andAutomation Approaches and Best

Practices


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Overview Approaches and BestPractices

System Architecture

Substation Integration and Automation Levels

Primary and Secondary Substations

Architecture Functional Data Paths

New Versus Existing Substations

Communication Protocols

IED Standalone Capabilities

IED Integration Capabilities

Utility Case Study Functional Architecture

Vendor Installed Architecture

Equipment Photographs


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Intelligent Electronic Device (IED)

Any device incorporating one or more

processors with the capability to receive orsend data/control from or to an external

source (e.g., electronic multifunction meters,

digital relays, controllers)


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Substation Integration andAutomation Levels

Power System Equipment

(Transformers, Breakers)

IED Implementation

IED Integration

Substation Automation

Applications

Utility Enterprise


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Substation Integration

Integration of protection, control and data

acquisition functions into a minimal numberof platforms to reduce capital and operating

costs, reduce panel and control room space,and eliminate redundant equipment and

databases

IED IntegrationSubstation Automation

Utility Enterprise


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Substation Automation

Deployment of substation and feederoperating functions and applicationsranging from SCADA and alarm processingto integrated volt/VAR control in order to

optimize the management of capital assetsand enhance operation and maintenance(O&M) efficiencies with minimal humanintervention

Substation AutomationIED Integration

Utility Enterprise


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DAC

Server

IM

Corporate WAN

Substation

Integration

System

IED(legacy)

SCADARTU

IED(RP-3599

compliant)Time Sync

Source

IM

IM

IM

User Applications

Corporate

Data

Repository

Bridge/Router/ Gateway/

Comms Processor

Local Substation LAN

IED(legacy)

IED(RP-3599

compliant)IED

IED IED

Communications Link

(radio, dedicated line, etc)

IM IM

IM

EMS

Local/Remote

Individual IEDs

Local UI &

Applications

Dial-Up Link

(modem)

Local/Remote location, eg, on feeders,

or at Remote Customer Substations

Comms

Comms

(direct link)

IM = Interface Module

= Other possible configurations (migration and future)

= Station environment

Example of

Primary

Substation

and

Secondary

Substation

Secondary

Substation

Primary

Substation


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Primary Substation AutomationSystem


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Secondary Substation AutomationSystem


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Architecture Functional Data Paths

Utility Enterprise Connection

SCADA Data to MCC Historical Data to Data

Warehouse

Remote Dial-In to IED

Substation Automation Applications

IED Integration Via Data Concentrator/Substation Host Processor

IED Implementation

Power System Equipment (Transformers, Breakers)


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TelCo SystemTelCo SystemLAN/WANLAN/WAN

Web Pages with:Web Pages with:ooRealReal--time valuestime values

ooRelay settingsRelay settings

ooFault recordsFault records

DFR recordsDFR records

Custom filesCustom files

Fault/OscillographyFault/Oscillography

data filesdata files

Web BrowserWeb Browser

RealReal--timetime

SCADASCADA

RealReal--timetime

data & controlsdata & controls

44--wire lease linewire lease lineFrame relayFrame relay

ORACLE RdBORACLE RdB

Web serverWeb server

DNP3.0DNP3.0

All WANAll WAN

communications arecommunications are

via secure TCP/IPvia secure TCP/IP

RelaysRelays

MB+MB+RouterRouter

RTURTU

RealReal--time SCADAtime SCADA

data and controlsdata and controls

(any IEDs data)(any IEDs data)

Fault records, summariesFault records, summaries

and waveform data fromand waveform data from

relays (and settings)relays (and settings)

Web pages with AppletWeb pages with Applet

and Servlet (Java)and Servlet (Java)

software for updatessoftware for updates


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New Versus Existing Substations

New Substations IEDs With Digital Communications

PLCs for Direct I/O

No Conventional RTUs

Existing Substations

May Integrate IEDs With Existing RTUs(Not Support Non-Operational andRemote Access Data Paths)

Integrate Existing RTU as IED or EliminateExisting RTU and Use IEDs and PLCs forRTU I/O


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Protocol Fundamentals

Communication Protocol

Allows Two Devices to Talk to Each Other

Each Device Must Have the Same

Protocol Implemented, and the Same

Version of the Protocol

Both Devices From Same Supplier, and

Protocol

Both Devices From Same Supplier, withIndustry Standard Protocol

Devices From Different Suppliers, with

Industry Standard Protocol


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Protocol Considerations

North American Electric Utilities Specify theIEDs to be Used in a Substation

Chosen Based on IEDs Standalone

Capabilities (Relay for Protection of Power

System) and Not IEDs IntegrationCapabilities

IEDs From Various Vendors (Will NotAccept Turnkey Approach From One

Vendor With All IEDs From that Vendor)


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Protocol Considerations(continued)

Once IEDs Specified by Utility Based onStandalone Capabilities, Then Consider

Each IEDs Integration Capabilities

IED Protocol Support

Modbus, Modbus Plus, DNP3

UCA2 MMS

May Lose Some IED Functionality WhenChoose Other Than IEDs Native Protocol

IED Networking Support RS-232 and RS-485 (Serial)

Ethernet


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IEC TC57 Harmonization with UCA2

7-2

7-3

7-4 Compatible data objects

Data Templates for Substations

Abstract Communication

Service Interface (ACSI)

Mapping to MMS8-1Common Application

Service Model (CASM)

Standard Data Types and

Common Components

Common Class Definitions

GOMSFE

Device Models

Device Models

Device Models

UCA261850-x-y

x - y


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North American Projects

Omaha Public Power District (OPPD) TwoSubstations and One Training Simulator

MidAmerican Energy Company (Iowa) TwoSubstations and One Training Simulator

Los Angeles Department of Water and Power 179 Substations, Two Development Systems,One Training Simulator Over Five Years

EPCOR Utilities (Edmonton) Two Substations

Minnesota Power Strategic Plan

Potomac Electric Power Company (PEPCO) all4kV, 13kV, 69kV and 230kV Substations

Frankfort Electric and Water Plant Board(Kentucky) Sixteen Substations and OneSCADA System With Two Dispatch Centers


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Omaha Public Power District(OPPD)

EPRI Tailored Collaboration (TC) Project Two Substations, One Training Simulator

Require all IEDs with UCA Capability to beIntegrated Using UCA2 MMS Protocol andEthernet Networking

Discovered that IEDs Thought to Have UCACapability Did Not (Beckwith M2002B LTCControl)

Discovered that IEDs Achieve UCA Capability ByAdding a Separate Box (Rather Than Integrating

Into IED) (RFL 9745 Teleprotection) Integrators Not Need SEL 2030 Communication

Processor Integrate SEL Relays Directly

One Substation System and Training SimulatorSystem Being Installed


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OPPD Simplified SA FunctionalSketch


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Simplified OPPD SA System

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