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  • 2016 Southern California Edison Company Neither SCE nor any individual or entity involved with this Project is making any warranty or representation, expressed or implied, with regard to this report. See full disclaimer statement on page i.

    Grid Modernization Initiative

    Grid Management System

    Architecture

    February 1, 2016

  • Grid Management System Architecture

    2016 Southern California Edison Company Neither SCE nor any individual or entity involved with this Project is making any warranty or representation, expressed or implied, with regard to this report. See full disclaimer statement on page i.

    - i -

    Acknowledgment and Disclaimer Statement

    This technical report was prepared by Southern California Edison Company (SCE) and is based on a project undertaken

    by SCE to address ways of modernizing SCEs grid to meet emerging needs, including those associated with the use of

    distributed energy resources (hereafter, the Project). SCE acknowledges the contributions of a team of individuals as

    participants in this Project, including:

    David Bass

    John Bubb

    Michael Garrison Stuber

    Erich Gunther

    Doug Houseman

    Chris Knudsen

    Jeremy McDonald

    Ricardo Montano

    Clint Powell

    Peter Reed

    Greg Robinson

    Ron Sellemi

    Steve Van Ausdall

    This Project was undertaken using reasonable care and in accordance with professional standards. However, neither SCE

    nor any individual or entity involved with this Project is making any warranty or representation, expressed or implied,

    with regard to this report, the merchantability or fitness for a particular purpose of the results described herein, or any

    analyses, information, or conclusions contained in this report. The results reflected in this report are generally

    representative of the operating conditions on SCEs electric grid; however, the results in any other situation may vary

    depending upon particular operating conditions.

    This report is copyrighted by SCE. SCE hereby grants other electric utilities, and those advising or regulating such

    entities, with a limited license right to review this report, make limited copies related to such review, and use the report to

    evaluate whether the approach used by SCE, as described herein, is likely to be useful to them in the performance of their

    own independent grid assessment. SCE does not, however, accept any liability for any use of this report or information

    contained in this report. Other uses of this report require permission from SCE.

    2016 Southern California Edison Company

  • Grid Management System Architecture

    2016 Southern California Edison Company Neither SCE nor any individual or entity involved with this Project is making any warranty or representation, expressed or implied, with regard to this report. See full disclaimer statement on page i.

    - ii -

    Table of Contents

    1 Introduction ............................................................................................................................................................. 1

    2 Purpose of this Document ..................................................................................................................................... 2

    3 Scope ...................................................................................................................................................................... 3

    3.1 System Purpose .......................................................................................................................................... 3

    3.2 System Description ..................................................................................................................................... 4

    3.3 Services Definitions .................................................................................................................................... 8

    3.4 Services Domains ....................................................................................................................................... 9

    3.5 Domain Interactions ................................................................................................................................. 10

    3.6 Architectural Characteristics .................................................................................................................... 12

    3.7 Architectural Constraints .......................................................................................................................... 16

    4 System Decomposition......................................................................................................................................... 17

    4.1 Reliability System ...................................................................................................................................... 17

    4.2 Optimization System ................................................................................................................................. 20

    4.3 Planning System ........................................................................................................................................ 23

    4.4 Economics System .................................................................................................................................... 27

    4.5 Grid Infrastructure Management System ................................................................................................ 30

    4.6 Data Repository System ........................................................................................................................... 34

    4.7 Communication System ............................................................................................................................ 37

    4.8 Integration System .................................................................................................................................... 40

    4.9 Combined Systems View ........................................................................................................................... 43

    5 Domains ................................................................................................................................................................ 44

    5.1 Central Domain ......................................................................................................................................... 44

    5.2 Distributed Domain ................................................................................................................................... 46

    5.3 Edge Domain ............................................................................................................................................. 47

    6 Design Principles .................................................................................................................................................. 50

    6.1 Safety and Compliance ............................................................................................................................. 50

    6.2 Standards & Application Specific Profiles (ASP) ..................................................................................... 50

    6.3 Intelligence ................................................................................................................................................ 51

    6.4 App Architecture ........................................................................................................................................ 51

    6.5 Common Dataset ...................................................................................................................................... 51

    6.6 Pre-Calculation .......................................................................................................................................... 51

    6.7 Groups & Regions ..................................................................................................................................... 51

    6.8 Performance .............................................................................................................................................. 52

    6.9 Data Validation .......................................................................................................................................... 52

  • Grid Management System Architecture

    - iii - 2016 Southern California Edison Company Neither SCE nor any individual or entity involved with this Project is making any warranty or representation, expressed or implied, with regard to this report. See full disclaimer statement on page i.

    2016 Southern California Edison Company Neither SCE nor any individual or entity involved with this Project is making any warranty or representation, expressed or implied, with regard to this report. See full disclaimer statement on page ___.

    2016 Southern California Edison Company Neither SCE nor any individual or entity involved with this Project is making any warranty or representation, expressed or implied, with regard to this report. See full disclaimer statement on page ___.

    6.10 User Interface Portability .......................................................................................................................... 52

    6.11 Usability ..................................................................................................................................................... 52

    6.12 Maintainability ...................

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