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GE Wind Energy

Overviewof Windfarm Communications

Using DNP3

NRELNovember 17, 2003

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GE Company Confidential

Next Gen SCADA &Automation Program

Windfarm High Level Communications Requirements

Acquire quality and reliable real time and historical data on turbine and windfarmoperations

Integrating all windfarm assets data (substation, met mast, relays, meters)

data into the system so one integrated homogeneous database for all windfarmassets

Integrated data for remote monitoring and diagnostics, asset management,advanced diagnostics, condition based maintenance

Allow for choosing best-in-class software and hardware

Optimize system maintenance & configuration processes and costs

Improved functional reliability improved availability

Improved secure real time access to data anyone, anywhere, anytime

Ability to reduce project configuration time

Support advanced security technologies

Windfarm High Level Communications Requirements

Acquire quality and reliable real time and historical data on turbine and windfarmoperations

Integrating all windfarm assets data (substation, met mast, relays, meters)data into the system so one integrated homogeneous database for all windfarmassets

Integrated data for remote monitoring and diagnostics, asset management,advanced diagnostics, condition based maintenance

Allow for choosing best-in-class software and hardware

Optimize system maintenance & configuration processes and costs

Improved functional reliability improved availability Improved secure real time access to data anyone, anywhere, anytime

Ability to reduce project configuration time

Support advanced security technologies

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GE Company Confidential

Next Gen SCADA &Automation Program

Windfarm LAN Protocol Requirements

Flexible polling schemes, ability to poll by device, by class, by database points,unsolicited (report by exceptions)

Multimedia: seamless integration across multiple physical media: Ethernet, serial,

radio licenses / unlicensed RF, phone, Seamless integration across corporate LAN / WAN and Intranets / Internet

Supported by multiple vendors, open, well documented, deployed in the field

No significant processor requirements on slave devices (low overhead)

Windfarm LAN Protocol Requirements

Flexible polling schemes, ability to poll by device, by class, by database points,unsolicited (report by exceptions)

Multimedia: seamless integration across multiple physical media: Ethernet, serial,radio licenses / unlicensed RF, phone,

Seamless integration across corporate LAN / WAN and Intranets / Internet

Supported by multiple vendors, open, well documented, deployed in the field

No significant processor requirements on slave devices (low overhead)

SCADAnet

Intranet

Histor

ianUser

Historian

Server

Remote User

EMS

Router

OperationsControl Center

SCADA

Control

Ethernet

Backup

Radio

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GE Company Confidential

Next Gen SCADA &Automation Program

Future Protocol Requirements

Self description, auto-configuration

Device based object models

Access security: encryption

Peer to Peer communications

What to Watch Out for..

Still a lot of low bandwidth systems the last mile scenario

Cost of implementation, learn from experiences of electric utilities with UCA, IEC 68150, millions of $$have been and still not widely adopted by the industry

Is the protocol stack too heavy for simple devices processor requirements, $$

Size, complexity and licensing issues of the protocol stack

The learning curve for a complex protocol for windfarm implmentors

Future Protocol Requirements

Self description, auto-configuration

Device based object models

Access security: encryption

Peer to Peer communications

What to Watch Out for..

Still a lot of low bandwidth systems the last mile scenario

Cost of implementation, learn from experiences of electric utilities with UCA, IEC 68150, millions of $$have been and still not widely adopted by the industry

Is the protocol stack too heavy for simple devices processor requirements, $$

Size, complexity and licensing issues of the protocol stack

The learning curve for a complex protocol for windfarm implmentors

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GE Company Confidential

Next Gen SCADA &Automation Program

GE Wind Energys Implementation of DNP3

GEWE required a windfarm LAN protocol that was already deployed, well documented and supported by companies(source code, OPC drivers, test sets, defined subets, etc)

DNP3 met these requirements, today

Promised migration path for future enhancements

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GE Company Confidential

Next Gen SCADA &Automation Program

History of DNP3

Distributed Network Protocol, completely open protocol, extremely well documented and supported, has reached alevel of maturity that makes deployment risk-free

Based on early parts of IEC 870-5

Turned over to Users Group in 1993

DNP and IEC 870-5-101 have been specified in IEEE P1379

Recommended Practice for Data Communications Between Intelligent Electronic Devices and Remote TerminalUnit

DNP3 protocol is now the most popular protocol in use by global electric utilities

DNP LAN implementation leads the way for use by both North American and international utilities.

Vendor Products

- >100 vendors, +250 DNP products and services, global

Utilities/Industrials

- used by >300 utilities and industrials worldwide

Countries

- used in over 32 countries. National standard in many

Total Industry

- $250 Million / year of DNP products and services

Industries

- Electric, Oil & Gas, Water and Industrial

DNP Users Group: >300 active members, controlsthe protocol and migration, support web site, active TechnicalCommittee, evolving documentation, technical bulletins

www.dnp.org

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GE Company Confidential

Next Gen SCADA &Automation Program

PowerLink Client

GUITelephone Co.

Dial Up Network

SCADA/EMS Masters

Ethernet LAN

IED atcircuit breaker

Fibre Optic Cables

Bridge/Router

Outdoor Locations

Server/Gateway

RemoteCommunications

Controller

D25

I/O

I/O

To Enterprise

GUI

WANGPS Receiver

GUI

SLIP/PPP

PowerLink Clients

Redundant PowerLink Server

I/O

IED's forProtection

IEDs

I/O

DigitalFault

Recorder

I/OI/O

Controls

Analogs

AC inputs

DistributedI/O

Status

Remote SER/DFRMaster or Maintenance

Computer

DNP3 in Substation LAN

Deployed in many hundreds of substations

around the world by many vendors

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GE Company Confidential

Next Gen SCADA &Automation Program

Wind Farm

OperationsCenter

SCADA Master / Server

Web Access,RemoteConfiguration, FileTransfer, ODBC

Web Access,

RemoteConfiguration, FileTransfer, ODBC

Pager, Email orSMS Operator Alarms / Reports /

Notification

Pager, Email or

SMS Operator Alarms / Reports /Notification

User interface,trending,alarming,reports, SQLserver

GPS TimeSync

WAN / Internet /Dial-In

BackupAccess

Graphical User Interface ScreensPark / Turbine overview: animatedAnnunciatorCommunications network overview, alarmsConfiguration screens

SQL Database

Report Generation

Real Time or Historical Trending

Alarm Management

Email, SMS, voice, fax

Remote User Interface

Communications to WindfarmDNP3 for real time mission critical dataODBC for historical data

High configurable and tunable

SCADA Master Station

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GE Company Confidential

Next Gen SCADA &Automation Program

485.6 AMPS

Utility Gateway

Utility SCADA / EMS/ RTA / ISO.

(Multiple)

Utility SCADA / EMS/ RTA / ISO.

(Multiple)

10/100 Mbit LAN DNP3/TCP/IP - ODBC

Substation

Substation Meters,

Relays,..

Wind FarmOperations

Center

Scada ProtocolsDNP3

IEC 60870-5-101UCAOthers

MET Tow er

Wind Turbines with Turbine Communications Server

SCADA Master / Server

Web Access,Remote

Configuration, FileTransfer, ODBC

Web Access,Remote

Configuration, FileTransfer, ODBC

Pager, Email orSMS Operator Alarms / Reports /

Notification

Pager, Email orSMS Operator Alarms / Reports /

Notification

485.6 AMPS

User interface,trending,alarming,reports, SQLserver

GPS TimeSync

Switch / Router

TurbineCommunications

Server

BachmannController

Converter

WAN / Internet /Dial-In

RCC Gateway

GEWE RemoteControl Center

GEWE RemoteControl Center

BackupAccess

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GE Company Confidential

Next Gen SCADA &Automation Program

DNP3 and IEC 61400-25

Many members of the DNP Technical Committee also on IEC 61850 committee

Many discussions ongoing regarding migration / melding of DNP3 and 61850

61400-25 can leverage from these activities, many similarities and much larger focus ($$)associated with 61850 activities and years of work

DNP3 and 61400-25 can run concurrently on the same physical LAN, an ideal migrationstrategy

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GE Company Confidential

Next Gen SCADA &Automation Program

Substation Automation after IEC 61850

BayController

CTs PTs PrimaryEquipmentMonitors

Self-ConfiguringWeb Server

Firewall/Router

BrowserLaptop

HMIHMI with

Power-Assisted

Configuration

ToWAN

ToLegacyMasters

CTs PTs

CTs PTs

BayController

SampledValues

Interlocking/Tripping

Gateway/Coordinator

Client/Server