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  • EIPP is considered to be the first major step towards modernization for the industry. <CLICK> to make the web link appear The website for EIPP can be found by going to the link shown. This site holds all the information for past User Group meetings, EIPP Charter, goals, structure, and activities. Recognize MATT Donnelly (who is in attendance at the Areva Meeting) - Matt leads the project for DOE.
  • The state of the electric utility industry is at a critical juncture. The events of August 14 reflect the words of FED Chairman Alan Green Span “ Can there be any doubt to anyone that the health of our economy is closely tied to the health of the electric system.” The August 14 outage: affected 8 US states and 1 Canadian Province over 61,000 MW of power was lost between 5 and 10 billion dollars were lost in economic activity And 3 people died Robert Ludlum (american author) – states: “ in a time of adversity are sown the seeds of change” The Blackout of August 14 was the beginning of “Change”/Modernization for this industry.
  • EIPP started in October 2003 as the lead DOE project in response to the Blackout of August 14. The Vision of EIPP is: <click> to show and read the Vision It is important to underscore - This project goal to be successful at BOTH monitoring of the system (which is happening now) and the eventual (automated) control of the system (which we believe we will see within the next 10 years) <click> to show the Working Group EIPP is a conglomerate of US and Canadian Utilities, Federal Agencies, Manufacturers, Academics and Universities. It is a project which will eventually include all of North America. TVA, ENTERGY, AREVA, and ATC are highlighted to show some of the joint Phasor research which I will discuss later in my presentation
  • <click> to show Phase I Phase I of the EIPP project was competed at the end of 2004 with a significant number of new instruments installed across the EI, most of the major telecomm/communications issues resolved, and success at bringing more users into EIPP <click> to show Phase II Phase II was begun at the start of 2005. In Phase II we target increasing the number of participants, instruments, and monitoring visibility across the US and Canada, as well as, increase academic and manufactures involvement. <click> to show Phase III Phase III will seek to fully develop monitoring across North America and will also see the beginning of control applications for the industry.
  • How does this all work? Phasor Measurement Units (PMU) – are placed at substations to monitor specific transmission lines/corridors PMU’s are high frequency, high bandwidth, GPS devices, which: take between 20 and 120 time-stamped measurement per second (depending on manufactuerer) of variables such as frequency, A,B,C voltage and current phase angle, Negative sequence current and voltage, A,B,C power factors and many more (over 150 distinct measurements from the Arbiter PMU) A Phasor data collector (PDC) polls the PMU’s and processes the information to other visualization tools and sends the data to the TVA Super Phasor Data Collector (Super PDC) The TVA Super PDC then transmits the information back to the EIPP signatory’s.
  • Across the North East <click> Phasor Data Concentrators are found at NYISO, NYPA, and First Energy Across the Mid-West <click> We have concentrators at AEP and Ameren And in the Southern US <click> Entergy and TVA. Combined these PDC’s provide visibility from the Gulf Coast to the Canadian Border
  • (<click> to hightlight and walk through each of the comparison and contrast of Phasor and Scada data) (each <click> will highlight a new set of comparisons and fade the last set) <at the end of the comparisons, <click> twice to show the entire table>
  • 14 Months ago Entergy did not have a single PMU on its system. Today we have one the largest and most sophisticated PMU systems in the country <click> to highlight the 11 sights we have operational <click> to highlight the 4 new sites we have coming on line this summer The locations were chosen by our planning and operations groups. These locations were understood to be critical areas in the Entergy system AND areas where we had fiber to bring in the data. Access to telecom/Ethernet connection/fiber is critical for the use of this equipment. There were some sites which were on our critical list but had no access to fiber and subsequently did not have PMU’s installed at those locations. At Entergy we use the ARBITER 1133A, Power Sentinal for our PMU and OSIsoft PI Historian as our PDC. (if anyone wants specifics as to why we chose Arbiter and PI, have them contact me)
  • Self-explanitory
  • 2 Pi Servers (security) 1 in a DMZ which communicates with TVA 2 internal entergy server within the entergy firewall Currently our plans are to have computers at each PMU location to do more of the number crunching at the local level (computers not installed currently) The data travels on a transmission only data ring (no corporate email, etc. only transmission operations data – for security and speed) The data travels across the internt through VPN connections to TVA. (if anyone begins to question the security of the internet, have Matt Donnelly address their concerns)
  • This is one of the screens from our Pi Historian pulling in frequency information (real-time) across the EI from TVA and Ameren. We have stepped into a new era in system observability and can begin to see that our system boundaries will be come more and more transparent as we move forward with EIPP. Visualization tools are the most important “first cut” at turning data into information. At Entergy we working with: PSERC on “Effective Power System Control Center Visualization” OSIsoft to refine their wide-area visualization capabilities Launched a project with Sakis Meliopolus at Georgia Tech to use his WINIGS-F 3-phase visualization tool in operations
  • Phasor measurements bring the ability to monitor the system and begin the development of new applications for reliability coordination. We can in real-time see voltage profiles for critical corridors. We have a window out of our system and can see and advise neighboring systems of events We are working with Power World Corporation to integrate phasor measurements into the Power World loadflow progam through the use of their Retreiver Model and anticipate operations screen views for September 2005 We will jointly fund the EIPP project to develop a Super Data Calibrator which will remove instrument error and coordinate the different PMU readings and sampling rates so that State Estimators can utilize information from across the many utilities.
  • Phase Angles give us the ability to take Phase angle differences and begin to see a real-time monitoring of system stability. We are pursuing projects at PSERC on “A Tool for On-Line Stability Determination and Control for Coordinated Operating between Regional Entities Using PMU’s .” At NEETRAC “Entergy System Stability Metrics defined using Phase Angel Differences”
  • We are jointly funding with TVA, AREVA, and ATC the first in the industry -- Integration of Phasor Measurements into State Estimation” Which will be presented at this afternoons session We are also pursuing two other ventures in state estimation through PSERC – Enhanced State Estimators and PMU Placement for State Estimation and Control
  • We have also launched work at NEETRAC to investigate the use of Dynamic Line Loading using PMU’s and have a high degree of confidence in it’s succes
  • In order for monitoring and control to be successful the underlying communciations infrastructure of this industry MUST change. To that end Entergy along with TVA are some of the industry supporters of a new NSF Center of Excellence under the direction of the University of Illinois, Carnage Mellon University, Washington State University and Arizona State University. We should know shortly if we are successful in the endowment of the center.
  • Recap of benefits


  • 1. ENTERGY Phasor Project Modernizing the Entergy Grid Enhanced Wide-Area Visibility: Finding Value in Phasor Measurement Floyd Galvan, PE Entergy Corporation POWERWORLD USERS GROUP MEETING Austin, TX June 2005
  • 2. Overview Overview of Eastern Interconnect Phasor Project (EIPP) Discussion of Entergy Phasor System Review of Phasor Benefits http://phasors.pnl.gov
  • 3. Strategic Importance August 14th Blackout By-The-Numbers “…its clear that the power grid 1 Canadian Provinceneeds an overhaul. It needs to be modernized. As we go into an 3 deathsexciting new period of American 8 U.S. states history, we want the most 12 airports closed modern electricity grid for our people… we need more 23 cases of looting in investment; we need research Ottawa and development…”President Bush 250+ power plantsSeptember 2003 9,266 square miles “When the lights go out, modern life as we know it grinds to a 61,800 MW of power lost sudden halt.  Transportation is 1.5 mill Cleveland residents interrupted, communications fail, water systems shut down, factory without water work is disrupted, food spoils,businesses lose money, and people 50 million people are inconvenienced and even $4.5-10 billion in economic endangered. ” activity lostSecretary AbrahamApril 2004
  • 4. EIPP Vision & Working Group Vision – improve power system reliability through wide-area measurement, monitoring and control EIPP Working Group Organizations (as of 3/2005)TVA Entergy AREVA ATCPowerWorld FERC NERC AEPAmeren First Energy NYISO CERTSPJM* 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.
  • 5. Eastern Interconnection Phasor Project Plan EIPPPhase I (Completed 12/04) 30 Instruments installed Resolve major communications issues Begin Transfer software tools to users Establish relationships Phase III (2008- )  More than 350 Phase II (2005-7) Instruments across North  ~150 Instruments America  Situational awareness and  Situational awareness state estimator app’s and state estimator app’s demonstrated realized, automatic  All major corridors control app’s beginning covered  Vendors participating at  Data available to research all levels community to begin work  Inexpensive instruments on projected benefits and communications available
  • 6. Phasor Measurement Systems StructureHigh Frequency Data Critical Grid Locations High Bandwidth Data Reliability Control AreaCoordinators Operators GPS Time-stamped Data Software Applications
  • 7. Phasor Data Concentrator Locations First Energy NYISO NPYA AEP Ameren TVA – Super Data Concentrator Entergy
  • 8. Benefits of “Phasor1” Data Phasor data  SCADA data  Refresh rate 30 samples per  Refresh rate 2-5 seconds second  Some data points are newer than  All data points time tagged others – no way to tell the and easy to “line up” for input difference. This leads to state to state estimator, operator estimator inaccuracy and display or planning study uncertainty about what is “real”.  Compatible with modern  Relies on legacy communication communication technology technology, i.e. does not take  Enables action in response to advantage of newer comm. system dynamics networks  Prelude to automatic  Enables action in response to switching schemes 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.
  • 9. Closer to Home
  • 10. Entergy PMU Locations 11 Sites are operational 4 sites coming on- line Summer 2005 PMU – ARBITER 1133A, Power Sentinal PDC – OSIsoft PI Historian
  • 11. Entergy PMU Locations 500 KV – 8 Arbiters  Arkansas – 6 Arbiters 230 KV – 3 Arbiters  Louisiana – 5 Arbiters 138/115 KV – 4 Arbiters  Mississippi – 3 Arbiters  Texas(NON-ERCOT)–1 Arbiter
  • 12. Phasor System Configuration
  • 13. Expected/Realized Phasor Data Benefits Improved wide area visibility (transparent boundaries) TVA, Entergy, Ameren Frequenc ys 60.03 60.005 AMEREN Hz 60.0050 60.01 60.004 TVA Hz 60.0040 60 60.007 59.99 Hz 59.98 59.96 5/16/2005 4:30:08 PM 60.00 minutes 5/16/2005 5:30:08 PM Entergy 60.0070
  • 14. Expected/Realized Phasor Data Benefits (cont)  Improved real time monitoring tools for reliability coordinators and system operatorsEl Dorado Voltage A,B,C Waterford-NineMile523000 518542.875 236400 234662.406521500 Volts Volts 518257.625 235400 234840.000520500 Volts 234900 Volts519500 521466.500 235985.094518500 Volts 234400 Volts516500 233400Goslin-Conroe Metro AMEREN, TVA, Entergy Frequencys142200 138547.594 60.03 60.004 Volts Hz140400 139964.641 60.01 60.002 Volts 60 Hz139400 141820.219 60.004 Volts 59.99 Hz138400137400 59.97
  • 15. Expected/Realized Phasor Data Benefits (cont) Improved ability to monitor grid dynamics and stability for reliability management (phase angle difference) Entergy and Ameren Voltage A Phase Angle 5/16/2005 6:09:55 PM 360 142.761 140 169.601 40 -60 -160 -360 18:01 18:03 18:05 18:07Entergy and Ameren Voltage A Phase Angle Difference 5/16/2005 6:09:55 PM 300 ANGLE DIFF TVA-AEP.Value -22.4925 100 0 -100 -200 -400 18:01 18:03 18:05 18:07 18:09
  • 16. Expected/Realized Phasor Data Benefits (cont) Improvements in state estimationIntegration of Phasor Measurements into State Estimator – Joint project between Entergy, Areva, TVA, and American Transmission CompanyEnhanced State Estimators - PSERC (Power Systems Engineering Research Center)Placement of Phasor Measurement Units for State Estimation - PSERC (Power Systems Engineering Research Center)
  • 17. Expected/Realized Phasor Data Benefits (cont) Dynamic system ratings for improved reliability and market performance (dynamic network management) Dynamic Line Loading using Phasor Measurement - NEETRAC Project (National Electric Energy Testing, Research, and Applications Center)
  • 18. Expected/Realized Phasor Data Benefits (cont) Redesign of Communications Infrastructure Supporters for an NSF Center of Excellence for a “Trustworthy Cyber Infrastructure for the Power Grid” – research under review for funding through NSF for Utility Communications and Security
  • 19. Expected Benefits from Phasor Data Improved wide area  Improvements in state visibility (transparent estimation boundaries)  Dynamic system ratings for Improved real time improved reliability and monitoring tools for market performance reliability coordinators and (dynamic network system operators (see management) around us)  Redesign of Improved ability to monitor Communications grid dynamics and stability Infrastructure (NSF, DHS, for reliability management DOE,…) (phase angle difference)
  • 20. QUESTIONS“In a time of adversity are sown the seeds of change”…Robert Ludlum
  • 21. Real-Time Phasor Visualization Applications within the Eastern Interconnect Phasors Project (EIPP) PowerWorld Users’ Group Meeting June 24, 20052001 South First Street Scott R. Dahman, P.E.Champaign, Illinois 61820 scott@powerworld.com+1 (217) 384.6330 http://www.powerworld.com
  • 22. EIPP Software Applications • Real-Time Dynamics Monitoring System (RTDMS) • OSISoft PI Historian • TVA DatAWare • PowerWorld RetrieverJune 24, 2005 Real-Time Phasor Visualization 23
  • 23. 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 FTPJune 24, 2005 Real-Time Phasor Visualization 24
  • 24. Retriever ArchitectureJune 24, 2005 Real-Time Phasor Visualization 25
  • 25. WECC Angle Displays (BPA)June 24, 2005 Real-Time Phasor Visualization 26
  • 26. Phasor Combination Displays (BPA)June 24, 2005 Real-Time Phasor Visualization 27
  • 27. 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)June 24, 2005 Real-Time Phasor Visualization 28
  • 28. Voltage Magnitude and Angle SUMMER SHADE -31.04 Deg -26.99 Deg 1.05 pu 1.06 pu 2 0 SS HADE 5W OLF CR -26.22 Deg 1.04 pu 20SSHADE -26.19 Deg 1.04 pu 5SUMMER 1.04 pu 5TMPKN T -26.19 Deg 1.03 pu 5LAFAYET -19.84 D eg 1.10PU 1.00 0.90 8DELL 5-6.53 Deg 1.03 pu 8LAG CRK 1.06 pu -4.53 Deg -9.58 Deg 1.04 pu 5SHELBY1 5SHELBY2 1.03 pu -9.43 Deg 1.10PU SHELBY 1.00 1.05 pu 8SHELBY -8.03 Deg 0.90 60.00 H z 8HAYW OO D 1.05 pu -7.99 Deg 5CORDO V1 1.05 pu -12.34 Deg 8F REEPOR 1.03 pu -9.11 Deg 5FREEPO R 60.00 Hz -11.14 Deg 1.04 pu 1.05 pu -11.72 Deg 5CO RDOV2 8CO RDOVA -9.24 Deg 1.04 pu CORDOVA 6FRPORT 1.10PU 8BENTON 1.05 pu 1.10PU -9.44 Deg 1.01 pu -9.12 Deg 1.00 1.00 0.90 0.90 FREEPORTJune 24, 2005 Real-Time Phasor Visualization 29
  • 29. Angle Difference Across LinesJune 24, 2005 Real-Time Phasor Visualization 30
  • 30. Angle Difference Across LinesJune 24, 2005 Real-Time Phasor Visualization 31
  • 31. 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 conditionsJune 24, 2005 Real-Time Phasor Visualization 32
  • 32. Retriever Connection: httpJune 24, 2005 Real-Time Phasor Visualization 33
  • 33. 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 HTTPJune 24, 2005 Real-Time Phasor Visualization 34
  • 34. 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 accessJune 24, 2005 Real-Time Phasor Visualization 35
  • 35. 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 intervalJune 24, 2005 Real-Time Phasor Visualization 36
  • 36. 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 researchJune 24, 2005 Real-Time Phasor Visualization 37