Effective Management of Distribution Grid Data Pat Brown, John Simmins, Jared Green EPRI CIGRE Grid of the Future Symposium October 23, 2017
Effective Grid Data Management A Changing Distribution Grid The Distribution grid is changing EMS, Markets Networked Transmission Markets DER Aggregators New Grid- Connected Equipment Radial Distribution Active Customers, Assets, and Dispatchable Generation New Players New Expectations New Technologies Grid planning & operation requires new analytics & simulations Effective data management is an enabling foundation 2
Effective Grid Data Management New Analytics and Simulations T &D Hosting Reliability Capacity Planning Planning Analysis s, methods, Non-Wires and tools Protection to Expansion support asset Solution and resource Design Planning planning Evaluation functions to ensure the safe, reliable, and efficient DER & Load Interconnection modern system. Forecasting Evaluation DER Monitoring/ Control Situational Awareness Operations Short-term DER & Load Forecasting Volt-VAr Outage Monitoring, controls, automation Control Management & Scheduling technologies and tools to optimize and Adaptive Training ensure the safe, secure, and Settings Simulator Load reliable operation Shedding of the modern system. FLISR Demand Response Supporting Technologies Field Devices Data Communications capture, management, Data communications, Cyber and cyber security that support the planning Management and operation of Security the modern system. 3
Effective Grid Data Management New Analytics and Simulations What do those future applications do? Execute power flow-based simulations (network analysis functions) What do those future applications need? Network (grid) model data: Data representing a simplified view of the electrical grid, including equipment, its electrical behavior and its connectivity, as well as its operating state at a moment in time, that is sufficient to describe a starting point for network analysis. 4
Effective Grid Data Management Challenges to Managing Grid Data Grid model data is complex to manage because it: Is big Is made up of different types of data with different update cycles Represents one grid past & multiple grid futures Has different parts from different sources Typically has a primary source: With major consistency / completeness issues That serves primary purposes other than providing grid model data Must be assembled into internally consistent, electrically logical cases 5
Effective Grid Data Management In Summary Distribution utilities will deploy new analytics and simulations Many of which require accurate grid model data That is difficult to manage Can we head the problem off at the pass? 6
Effective Grid Data Management Network Data Management in Transmission Learning from Older Brother s Mistakes Consistently across industry In well-established silos Every tool requires its own network model, in its own format Every tool has its own users and maintainers.... EMS/Ops Planning Transient Analysis Expansion Planning.. Silos are both technical and organizational Protection.... Training Simulator 7
Effective Grid Data Management Network Data Management in Transmission Learning from Older Brother s Mistakes Consistently across industry In well-established silos Enterprise Data Sources Network Cases Plans Substation As- Built Line Impedance Calculation Line Rating Calculation Circuit Description Transformer Data Generator data GIS Outages Validation Cases Import/Export Cases EMS Network Outage Studies Planning Base Cases Protection /Cases Substation Load History 8
Equipment Factory Testing Proposed Projects Construction Projects equipment, connectivity Station Asset Procurement Purchasing TSO expansion planning transmission upgrades. interconnection projects Planned Project Database (proposed/planned project information: dates, costs, engineering details, drawings, status, project manager).pdf of test results asset data factory test results TSO System Event TSO Footprint Enterprise Data Sources for TSO Consumers relay specifications/schemes, CT/PT ratios Trans P and C electronic transfer Asset Management (existing assets, names, nameplate information, including rating) Control Center Asset Mgmt TSO Planned Field Work Field Personnel Field Construction Station Construction Planning xfmr serial number, factory test results xfmr nameplate Construction Package rating information outage request unplanned (actual) outage As-Built revised Design Package Design Single line diagram (connectivity, equipment name, line name, load location) Telemetry, control Tap settings Relaying diagram/schemes Equipment list, conductor size Station tap settings Trans P and C equipment name, connectivity Relay eering Load History Database (monthly substation Distribution bus peak loads) Distr yearly per operating company load projections Transformer Impedance Database (transformer impedances) Trans P and C Trans P and C historic point data used as needed to validate Planning case assumptions Load Forecast Application (system load forecasts) Control Center Outage Scheduler (internal planned & actual outages) OS Support equipment, connectivity Trans P and C xfmr impedances detailed physical line characteristics relay settings Circuit Limits Calculator Ratings (ratings for every circuit component, includes relay settings that limit ratings) (generic device rating/ limit information) Circuit Limits (8 temperature-based levels) yearly non-coincident per transformer peak load projections Outage Scheduler generator location, operating characteristics for generators in operation / under construction / Generator Owners Protection eering Tool Line Constants (physical line characteristics, topology) Short Circuit (line & transformer impedance matrix, generator impedances includes topology) Relay (calculated internal relay settings, record of external relay settings) internal (muni load) interchange Real-time Data Historian (historic EMS point values) EMS Support system load NERC SDX (Eastern interconnect outages) NERC Trans P and C load scaling asset data peak loads external Trans interchange Plan added/ removed equipment IDs Trans Ops Trans Ops outages for initial study outages for initial study outages for dayahead study Physical Network planned equipment names, connectivity, load & generation locations equipment names, normal states, transformer tap data, connectivity, load & generation locations equipment names, normal states, connectivity, load & generation locations, transformer tap data, telemetry equipment names, in-service dates, connectivity internal equipment/ circuit OS IDs internal contingency lists contingency & monitored element configuration generator location, generator steadystate behavior characteristics generator dynamic behavior characteristics generator time constants load dynamic behavior characteristics typical equipment impedances line & transformer circuit impedances line impedances transformer impedances & taps occasional relaying info UV and UF relay settings station and asset information Operating Philosophies Limits typical equipment limits line & transformer circuit limits line & transformer circuit limits Control voltage schedules Load Config non-scada load allocations load injections generator injections interchange schedules load & generation injection adjustments load & generation injection adjustments internal TSO outages internal TSO outages internal TSO outages internal contingency list selection Case Assumptions EMS Support script per case update file script per case rating update EMS Support Control Center Trans Ops script per case update file OS Support TSO Network Consumer Applications TSO Voltage Stability Analysis Tool TSO Planning Power Flow Application Contingency Contingency List List EMS EMS cases are based on configuration source data EMS Realtime Case EMS Study Case Summer Peak Base Case per case translation Summer Peak Base Case Dynamics Case TSO EMS Study Environment DTS DTS scenarios are based on configuration source data DTS Scenario DTS Simulator TSO Outage Scheduler Outageable Equipment Key Application/ System/ Database Source TSO Data Owner ICCP No overarching data management strategy Trans Ops EMS Support Trans Ops Control Center OS Support Application/ System/ Database Source Non-TSO Data Owner External Footprint Data Sources for TSO Consumers Actor equipment names, normal states, transformer tap data, connectivity, load & generation locations, generator steady-state behavior characteristics, line & transformer circuit impedances, line & transformer limits, voltage schedules, load & generator injections, interchange equipment names, normal states, transformer tap data, connectivity, load & generation locations, generator steady-state behavior characteristics, line & transformer circuit impedances, line & transformer limits, voltage schedules, load & generator injections, interchange load & generation dynamic behavior characteristics external network equipment names, normal states, connectivity, impedances, load locations & allocations external generator locations, generator steady-state behavior characteristics external network line & transformer impedances voltage schedules external network equipment names, normal state, connectivity, load locations, ICCP config external real-time measurement values / states external outages external equipment/ circuit OS IDs Actor assisting w/ information flow information flow email with requested line & transformer impedances one-line indicating change outages for initial & day-ahead studies added/removed equipment IDs process details process details Planning Power Flow Application Summer Peak Base Case Dynamics Case TSO Planning Power Flow Application Summer Peak Base Case generator location, operating characteristics line & transformer impedances voltage schedules equipment name, normal state, connectivity, load locations Other Utility EMS EMS Run-Time EMS NERC SDX (Eastern Interconnect outages) NERC outages Outage Scheduler Outages Outageable Equipment Partially automated Information flow Automated Information flow 9
0 Effective Grid Data Management Network Data Management in Transmission Learning from Older Brother s Mistakes EPRI work in Transmission Enterprise Data Sources Plans Substation As- Built Line Impedance Calculation Line Rating Calculation Circuit Description Transformer Data Generator data GIS Outages Substation Load History The Network Manager (NMM) Vision: One Source for Each Piece of Data Network Manager As-Built Internal Plans Internal PNM As-Built External Plans External Object Registry CM Network Cases Validation Cases Import/Export Cases EMS Network Outage Studies Planning Base Cases Protection 10
Effective Grid Data Management Network Data Management in Transmission In Transmission, EPRI Outlined the strategy in reports Network Manager Technical Market Requirements (Product ID 3002003053) Using the Common Information for Network Analysis Data Management: A CIM Primer Series Guide (Product ID 3002002587) Network Manager and Repository: A Guide to Exploring the Potential of Centralized Network Management (Product ID 3002000609) Socialized the strategy via multiple presentations, articles Is seeing increased utility and vendor interest 11
Effective Grid Data Management In the Distribution Domain A data management foundation for GIS/grid model data would: Reduce risk of bad data causing errors in operations decisions study results capital planning decisions maintenance decisions Save labor wasted in duplicate entry, chasing bad data Improve timeliness of results, decisions and actions Provide a platform for deploying as-yet-unthought-of future applications 12
Effective Grid Data Management Meeting the Challenge Develop an industry vision for grid model data management Based on requirements synthesized from many utilities That recognizes and supports the unique role of field activity Expressed in terms of business functions and supporting software services That allows the definition of industry standard data exchanges 13
Planning Hosting Capacity Analysis Steady-State Power Flow Short Circuit Power Flow Long-Term Forecasting Load Forecasting DER Forecasting Protection Design Short Circuit Power Flow Unplanned Outage Management Unplanned Outage Detection Work Management Crew Management Planned Outage Management Outage Request Management Contingency Analysis Operations Operational Forecasting DER Forecasting Load Forecasting Supporting Technologies Business functions Software services Standard data exchanges Grid Data Management Part Maintenance Case Assembly eering Design Line Project Design Substation Project Design 14
Effective Grid Data Management Meeting the Challenge Develop an industry vision for grid model data management Based on requirements synthesized from many utilities That recognizes and supports the unique role of field activity Expressed in terms of business functions and supporting software services That allows the definition of industry standard data exchanges Enhance the CIM standard Functional requirements for distribution grid model data management tool Socialize the vision Utility understanding Vendor interfaces on products both data producers and consumers Enable utilities to implement product-based solutions which reinforce good data management 15
Distribution GIS & Grid Data Management Project EPRI has launched multi-year, multi-utility collaborative supplemental project GIS data cleanup Technologies of Promise exploration Geo-spatial modeling best practices Field crew enablement Solution architecture evaluation & demonstration Distribution enterprise grid model data management Utility deep dives (up to 5) Define grid model management architecture CIM standard advancement More information Pat Brown pbrown@epri.com John Simmins jsimmins@epri.com Jared Green jgreen@epri.com 16
Together Shaping the Future of Electricity 17