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Transmission & Distribution Interface 2.0 (TDI 2.0) SDRC

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Transmission & Distribution Interface 2.0 (TDI 2.0) SDRC Transmission & Distribution Interface 2.0 (TDI 2.0) 0 SDRC 9.1 – Technical High Level Design July 2017 1 Table of Contents References .............................................................................................................................................. 4 Definition of Terms ................................................................................................................................. 5 1. Executive Summary ......................................................................................................................... 8 1.1 TDI 2.0 project approach......................................................................................................... 8 1.2 Report Structure ..................................................................................................................... 9 2. Introduction .................................................................................................................................. 11 2.1 Background and project objectives ...................................................................................... 11 2.2 Purpose of document............................................................................................................ 12 3. Functional Design High Level Specification – Services Definitions ............................................... 14 3.1 Purpose ................................................................................................................................. 14 3.2 Functional design considerations ......................................................................................... 14 3.3 TDI 2.0 Services ..................................................................................................................... 18 3.4 Functional Design .................................................................................................................. 20 4. ICT Design Options ........................................................................................................................ 23 4.1 Architecture Options ............................................................................................................. 23 4.2 Design Options Summary ...................................................................................................... 29 5. Power Systems Design Options ..................................................................................................... 30 5.1 State Estimation .................................................................................................................... 30 5.2 Forecasting function ............................................................................................................. 31 5.3 Optimal Power Flow (OPF) .................................................................................................... 33 5.4 Voltage Control methodology for DER .................................................................................. 36 6. High Level Architecture ................................................................................................................. 39 6.1 Architecture Overview .......................................................................................................... 39 6.2 Summary of Architecture ...................................................................................................... 41 7. Commercial High Level Design ...................................................................................................... 43 7.1 Overall objectives and scope of the commercial design ...................................................... 43 7.2 Service design ....................................................................................................................... 43 7.3 Contractual Design ................................................................................................................ 44 7.4 Engagement and trial participation ...................................................................................... 45 7.5 Working with the academic partners ................................................................................... 46 2 7.6 DER Provider Sign–Up ........................................................................................................... 47 7.7 Advisory Panel ....................................................................................................................... 49 8. High Level Business Processes ...................................................................................................... 50 8.1 High level impact of TDI 2.0 on National Grid ....................................................................... 50 8.2 High level impact of TDI 2.0 on UK Power Networks ............................................................ 51 8.3 High level Business Processes ............................................................................................... 51 9. Review of anticipated synergies and conflicts .............................................................................. 53 9.1 Synergies ............................................................................................................................... 53 9.2 Conflicts................................................................................................................................. 55 10. Summary ....................................................................................................................................... 58 10.1 Functional design document ................................................................................................. 58 10.2 Alternative design options considered and selection criteria .............................................. 58 10.3 High level design specification .............................................................................................. 59 10.4 High level business processes ............................................................................................... 59 10.5 Review of anticipated synergies and conflicts ...................................................................... 59 Appendix A – Low Voltage Use Case ..................................................................................................... 60 Appendix B – High Voltage Use Case .................................................................................................... 63 Appendix C – Re–dispatch of Real Power Use Case .............................................................................. 66 Appendix D – Working with academic partners (Confidential) ............................................................ 69 Appendix E – High Level Business Process ............................................................................................ 70 Appendix F – High Level Technical Architecture ................................................................................... 71 3 References Number Document Name Author Reference [ 1 ] DER Operating Characteristics A. Ahmadi, C. Escudero, B. Stojkovska, M. Horley, J. Horne Reference [ 2 ] MPE Voltage Report Moeller and Poeller, Power system dynamic studies for TDI 2.0 Project Reference [ 3 ] Transmission and Distribution T. Manandhar, C. Escudero Interface 2.0 requirements specification Confidential Reference [ 4 ] Security and Quality of Supply National Grid Standard (SQSS) 4 Definition of Terms Term Definition AC Alternating Current ANM Active Network Management ANN Artificial Neural Networks AVC Automatic Voltage control BCV Business Continuous Volume CIM Common Information Model CPU Central Processing Unit DC Direct Current DER Distributed Energy Resources DERM Distributed Energy Resources Management DERMS Distributed Energy Resources Management System DG Distributed Generation DMS Distribution Management System DMZ De–militarized Zone DNO Distribution Network Operator DR Disaster Recovery DSO Distribution System Operator EMS Energy Management System ENA Energy Network Association ENCC Electricity National Control Centre FC Fibre Cards FEP Front End Processors FTP File Transfer Protocol GB Great Britain GDPR General Data Protection Regulation GE General Electric GIS Geographic Information System GSP Grid Supply Point GW GigaWatt HTTP Hypertext Transfer Protocol HTTPS Secured Hypertext Transfer Protocol 5 Term Definition ICT Information Communication Technology ICCP Inter–Control Centre Communications Protocol IEC International Electrotechnical Commission IP Internet Protocol IPS Secure Internet Protocol ISO International Standards Organisation IT Information Technology KASM Kent Active System Management MVAr Mega Volt Ampere Reactive MW Mega Watt NAP Network Access Planning NG National Grid NMS Network Management System OPF Optimal Power Flow OS Operating System P Active Power in MegaWatts PACE Police and Criminal Evidence Act PC Personal Computer PDU Power Distribution Unit PED Personal Electronic Devices PF Power Factor PKI Performance Key Indicators POC Point Of Connection Q Reactive Power in MegaVars RAID Redundant Array of Independent Disks RDP Regional Development Programmes RPO Recovery Point Objectives RTO Recovery Time Objectives RTU Remote Terminal Unit SAN Storage Area Network SCADA Supervisory Control and Data Acquisition SCP Secure Copy Protocol SDRC Successful Delivery Reward Criterion 6 Term Definition SFTP Secure File Transfer Protocol SGAM Smart Grid Architecture Model SO System Operator SOC Security Operations
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