12 eipp galvan

ENTERGY Phasor ProjectModernizing the Entergy Grid

Enhanced Wide-Area Enhanced Wide-Area Visibility:Visibility:

Finding Value in Finding Value in Phasor MeasurementPhasor Measurement

Floyd Galvan, PEFloyd Galvan, PEEntergy Entergy

CorporationCorporationPOWERWORLD USERS GROUP MEETING

Austin, TX June 2005

OverviewOverview

Overview of Eastern Overview of Eastern Interconnect Phasor Project Interconnect Phasor Project (EIPP)(EIPP)

Discussion of Entergy Phasor Discussion of Entergy Phasor SystemSystem

Review of Phasor BenefitsReview of Phasor Benefits http://phasors.pnl.govhttp://phasors.pnl.gov

August 14th BlackoutBy-The-Numbers

1 Canadian Province

3 deaths

8 U.S. states

12 airports closed

23 cases of looting in Ottawa

250+ power plants

9,266 square miles

61,800 MW of power lost

1.5 mill Cleveland residents

without water

50 million people

$4.5-10 billion in economic

activity lost

Strategic Importance

“…it's clear that the power grid needs an overhaul. It needs to be

modernized. As we go into an exciting new period of American

history, we want the most modern electricity grid for our people… we need more investment; we need

research and development…”President BushSeptember 2003

“When the lights go out, modern life as we know it grinds to a sudden halt.

Transportation is interrupted, communications fail, water systems

shut down, factory work is disrupted, food spoils, businesses lose money, and people are inconvenienced and

even endangered. ”

Secretary AbrahamApril 2004

EIPP Vision & Working EIPP Vision & Working Group Group Vision – improve power system Vision – improve power system

reliability through wide-area reliability through wide-area measurement, monitoring and measurement, monitoring and controlcontrol

EIPP Working Group Organizations (as of EIPP Working Group Organizations (as of 3/2005)3/2005)

TVA Entergy AREVAATCPowerWorld FERC NERC AEPAmeren First Energy NYISOCERTSPJM* Hydro One NYPA US DOECom Ed* IMO* Con Ed*ISO-NEDominion MAPP Southern Co.*SPP* Duke* MISOHydro Qubec* Manitoba Hydro* British Columbia Trans Comp*

• At least ten additional Work Group members are vendors of hardware or software* These organizations have expressed interest but have not fully committed.

Eastern Interconnection Eastern Interconnection Phasor Project PlanPhasor Project Plan

Phase I (Completed 12/04)

30 Instruments installed Resolve major

communications issues Begin Transfer software

tools to users Establish relationships

Phase II (2005-7) ~150 Instruments Situational awareness and

state estimator app’s demonstrated

All major corridors covered

Data available to research community to begin work on projected benefits

Phase III (2008- ) More than 350

Instruments across North America

Situational awareness and state estimator app’s realized, automatic control app’s beginning

Vendors participating at all levels

Inexpensive instruments and communications available

EIPP

Phasor Measurement Phasor Measurement Systems StructureSystems Structure

Critical Grid Locations

Reliability

Coordinators

Control Area

Operators

Software

Applications

High Frequency Data

High Bandwidth Data

GPS Time-stamped Data

Phasor Data Concentrator Phasor Data Concentrator LocationsLocations

NYISO

AEPAmeren

TVA – Super Data Concentrator

Entergy

NPYAFirst Energy

Benefits of “PhasorBenefits of “Phasor11” Data” Data

Phasor dataPhasor data Refresh rate 30 samples Refresh rate 30 samples

per secondper second All data points time tagged All data points time tagged

and easy to “line up” for and easy to “line up” for input to state estimator, input to state estimator, operator display or operator display or planning studyplanning study

Compatible with modern Compatible with modern communication technologycommunication technology

Enables action in response Enables action in response to system dynamicsto system dynamics

Prelude to automatic Prelude to automatic switching schemesswitching schemes

SCADA dataSCADA data Refresh rate 2-5 secondsRefresh rate 2-5 seconds Some data points are Some data points are

newer than others – no way newer than others – no way to tell the difference. This to tell the difference. This leads to state estimator leads to state estimator inaccuracy and uncertainty inaccuracy and uncertainty about what is “real”.about what is “real”.

Relies on legacy Relies on legacy communication communication technology, i.e. does not technology, i.e. does not take advantage of newer take advantage of newer comm. networkscomm. networks

Enables action in response Enables action in response to system staticsto system statics

1“Phasor” is in quotes to suggest that we are not talking strictly about phasors, but about high speed, accurately time-tagged data in general.

Closer to Home

EntergyEntergy

PMU LocationsPMU Locations

11 Sites are 11 Sites are operational operational

4 sites coming 4 sites coming on-line on-line Summer 2005Summer 2005

PMU – PMU – ARBITER ARBITER 1133A, Power 1133A, Power SentinalSentinal

PDC – OSIsoft PDC – OSIsoft PI HistorianPI Historian

Entergy PMU LocationsEntergy PMU Locations

500 KV – 8 500 KV – 8 ArbitersArbiters

230 KV – 3 230 KV – 3 ArbitersArbiters

138/115 KV – 4 138/115 KV – 4 Arbiters Arbiters

Arkansas – 6 Arkansas – 6 ArbitersArbiters

Louisiana – 5 Louisiana – 5 ArbitersArbiters

Mississippi – 3 Mississippi – 3 ArbitersArbiters

TexasTexas(NON-ERCOT)(NON-ERCOT)–1 –1 ArbiterArbiter

Phasor System Configuration

Expected/RealizedExpected/Realized Phasor Data Benefits Phasor Data Benefits

Improved wide area visibility Improved wide area visibility (transparent boundaries)(transparent boundaries)

Entergy

TVA60.0040

60.0070

AMEREN60.0050

Hz

Hz

Hz

TVA, Entergy, Ameren Frequencys

5/16/2005 4:30:08 PM 5/16/2005 5:30:08 PM60.00 minutes

59.98

59.99

60

60.01

59.96

60.03

60.007

60.004

60.005

Expected/RealizedExpected/Realized Phasor Data Benefits (cont) Phasor Data Benefits (cont)

Improved real time monitoring tools for reliability Improved real time monitoring tools for reliability coordinators and system operators coordinators and system operators

Volts

Volts

Volts

El Dorado Voltage A,B,C

518500

519500

520500

521500

516500

523000

521466.500

518257.625

518542.875

Volts

Volts

Volts

Goslin-Conroe Metro

138400

139400

140400

137400

142200

141820.219

139964.641

138547.594

Volts

Volts

Volts

Waterford-NineMile

234400

234900

235400

233400

236400

235985.094

234840.000

234662.406

Hz

Hz

Hz

AMEREN, TVA, Entergy Frequencys

59.99

60

60.01

59.97

60.03

60.004

60.002

60.004


Improved ability to monitor grid dynamics and stability for Improved ability to monitor grid dynamics and stability for reliability management (phase angle difference)reliability management (phase angle difference)

\\192.168.233.244\AMR_RUSH-TYSN:ABBVH

\\192.168.233.244\ENT_EDRD-MTOV:ARBNVH

Entergy and Ameren Voltage A Phase Angle 5/16/2005 6:09:55 PM

18:01 18:03 18:05 18:07

-160

-60

40

140

-360

360

169.601

142.761

ANGLE DIFF TVA-AEP.Value

Entergy and Ameren Voltage A Phase Angle Difference 5/16/2005 6:09:55 PM

18:01 18:03 18:05 18:07 18:09

-200

-100

0

100

-400

300-22.4925


Improvements in state estimationImprovements in state estimation

Integration of Phasor Measurements into Integration of Phasor Measurements into State Estimator State Estimator – Joint project between – Joint project between Entergy, Areva, TVA, and American Entergy, Areva, TVA, and American Transmission CompanyTransmission Company

Enhanced State Estimators - Enhanced State Estimators - PSERC (Power PSERC (Power Systems Engineering Research Center)Systems Engineering Research Center)

Placement of Phasor Measurement Units for Placement of Phasor Measurement Units for State Estimation - State Estimation - PSERC (Power Systems PSERC (Power Systems Engineering Research Center)Engineering Research Center)


Dynamic system ratings for improved Dynamic system ratings for improved reliability and market performance reliability and market performance (dynamic network management)(dynamic network management)

Dynamic Line Loading using Phasor Dynamic Line Loading using Phasor MeasurementMeasurement - - NEETRAC Project NEETRAC Project (National Electric Energy Testing, (National Electric Energy Testing, Research, and Applications Center)Research, and Applications Center)


Redesign of Communications Redesign of Communications Infrastructure Infrastructure Supporters for an NSF Center of Supporters for an NSF Center of Excellence for a “Trustworthy Cyber Excellence for a “Trustworthy Cyber Infrastructure for the Power Grid” – Infrastructure for the Power Grid” – research under review for funding research under review for funding through NSF for Utility through NSF for Utility Communications and SecurityCommunications and Security

Expected Benefits from Phasor Expected Benefits from Phasor DataData

Improved wide area Improved wide area visibility (transparent visibility (transparent boundaries)boundaries)

Improved real time Improved real time monitoring tools for monitoring tools for reliability coordinators reliability coordinators and system operators and system operators (see around us)(see around us)

Improved ability to Improved ability to monitor grid dynamics monitor grid dynamics and stability for and stability for reliability reliability management (phase management (phase angle difference)angle difference)

Improvements in state Improvements in state estimationestimation

Dynamic system Dynamic system ratings for improved ratings for improved reliability and market reliability and market performance (dynamic performance (dynamic network management)network management)

Redesign of Redesign of Communications Communications Infrastructure (NSF, Infrastructure (NSF, DHS, DOE,…)DHS, DOE,…)

““In a time of adversity are sown the seeds of change”…Robert LudlumIn a time of adversity are sown the seeds of change”…Robert Ludlum

QUESTIONS

Scott R. Dahman, [email protected]://www.powerworld.com

2001 South First StreetChampaign, Illinois 61820+1 (217) 384.6330

Real-Time Phasor Visualization

Applications within the Eastern Interconnect Phasors Project (EIPP)

PowerWorld Users’ Group MeetingJune 24, 2005

mailto:[email protected]

http://www.powerworld.com/

Real-Time Phasor Visualization 23June 24, 2005

EIPP Software Applications

• Real-Time Dynamics Monitoring System (RTDMS)

• OSISoft PI Historian

• TVA DatAWare

• PowerWorld Retriever


Retriever Benefits

• Real-time visualization• Provides overview of system health to enhance

situational awareness• Capture a power flow case from real-time data

for study, training, or post-mortem analysis• Independent of EMS platform• Remote access by FTP


Retriever Architecture


WECC Angle Displays (BPA)


Phasor Combination Displays (BPA)


Retriever and the EIPP

• Summer 2004: Pilot installation of PMU Visualization at TVA– ODBC connection to TVA SQL database– Phasor data retrieved from PMUs at several stations

• Cordova• Shelby• Freeport• Volunteer• Summer Shade

• Development of OPC client (ongoing)• Development of https and direct DatAWare clients (ongoing)


Voltage Magnitude and Angle

SHELBY

CORDOVA

FREEPORT

SUMMER SHADE

1.10PU

0.90

1.00

1.10PU

0.90

1.001.10PU

0.90

1.00

1.10PU

0.90

1.00

5SUMMER

5LAFAYET

8SHELBY8HAYWOOD

8CORDOVA

8FREEPOR

5CORDOV1

5SHELBY1

5CORDOV25FREEPOR

8DELL 5

5SHELBY2

8LAG CRK

6FRPORT

8BENTON

5TMPKN T

20SSHADE

5WOLF CR20SSHADE

1.04 pu

1.03 pu

1.05 pu

1.03 pu

1.01 pu

1.03 pu 1.04 pu

1.05 pu

1.05 pu

1.04 pu

1.05 pu

1.05 pu

1.06 pu

1.03 pu

1.04 pu

1.05 pu

1.04 pu

1.06 pu

1.04 pu

-6.53 Deg

-9.58 Deg

-9.43 Deg

-8.03 Deg

-7.99 Deg

-12.34 Deg

-9.24 Deg

-9.44 Deg

-11.72 Deg

-11.14 Deg

-9.11 Deg

-9.12 Deg

-4.53 Deg

-19.84 Deg

-31.04 Deg -26.99 Deg

-26.19 Deg

-26.19 Deg

-26.22 Deg

60.00 Hz

60.00 Hz


Angle Difference Across Lines


Angle Difference Across Lines


Retriever Study Mode

• Create a power flow case from real-time state estimator data

• Phasor retrieval from state estimator or PMU

• Applications– operator training for emergency operation or post-

mortem analysis– Contingency, ATC, voltage stability analysis based on

real system conditions


Retriever Connection: http


Retriever Connection:Secure Shell

• By setting up a VPN tunnel in another application , you can retrieve data via FTP or HTTP encrypted.

• Involves mapping requests against a particular local port to a port on a remote VPN server.

FTP

HTTP


Retriever Connection: DatAWare

• Dataware is a data archiving tool written by TVA Nuclear Operations

• Provides both a client-side and a server-side API• PowerWorld has written a server-side Dataware-Retriever bridge

– Periodically queries the server for new data– Publishes the newly retrieved data to a flat file– Retriever then downloads this flat file using ftp, http, or direct disk

access


Retriever Connection: OPC

• Retriever can download data from an OPC server

• Data is cached locally as it is generated at the OPC server

• Displays are refreshed at a user-specified interval


Summary

• Retriever brings all the visualization techniques of PowerWorld to the on-line environment

• Advantages– Flexibility in data and display format

– Ability to communicate complex data and trends quickly, in a manner that is easily understood by engineers and management

– Visualization platform developed over several years and guided by hundreds of customers and research

Technology

12 eipp galvan