Architectural Methodology
Joint NIST-SGAC / EU-M.490 RAWG Efforts
IEC WG 19 Meeting
Geneva, CH
2012/May/11
NIST SGAC Conceptual Architecture
Automation Technologies
Conceptual
What?
Business
Input from
strategy &
context
Business
Architecture
Automation
Architecture
Interaction
Architecture
Technical
Architecture
Goals/
Contextual
Why?
What
services
does the
business
fulfill
What types
of
applications
are required
What
information
must be
exchanged
What ICT
services are
required
TOGAF Prelim
Phase
&A
B
Business
C
IT Sys
C
Data
Interaction Messaging Artifact
<Input>
<Input>
<Output>
<Business Service
Name>
Archetypical:
• 20 Actors
• 25 Message (interaction)
• 213 Business Services
<Actor>
<Actor>
<Output>
Example: Iteration Services for Forecast
Intermittent Generation
Measurement
Environment
Forecast
Intermittent
Generation
Forecast
Market
Manager
Forecast
Suggested Methodology Alignment
Semantics relating to EU M490 RAWG


Apply Conceptual Architecture elements to DEWG DER use
cases
Integrate EU and DEWG Point-of-View
Use Cases
Business Services
Business Processes
(Interactions)
Suggested Methodology Alignment
Cross-Cutting Requirements

Define/create fundamental
Solution Blocking Blocks (SBB)
 Example: adopt/modify
Open Group SOA practices

Leverage common Smart
Grid messaging and Crosscutting requirements as SBB)
Open Group SOA
Quality of Service
Building Block
Refinement of GWAC stack to SGAM layer associations

Before: Business context associated to Function Layer

After: Business context associated to Information Layer

Reason:Business context deals with information used in specific context
Economic / Regulatory Policy
Business Layer
Business Objectives
Business Context
Semantic Understanding
Syntactic Interoperability
System B
System A
Business Procedures
Function Layer
Information Layer
Communication Layer
Network Interoperability
Basic Connectivity
Function
Component Layer
Methodology Alignment Activities
Map EU’s Smart Grid Architectural Methodology to NIST
Conceptual Architecture & CSWG approach
Business goals &
requirements
Use Cases, Business
Services/Actors
GWAC
Stack
Based
Interactions,
Automation Services
Semantics-CDMs
Syntax &
Communications
Standards
Ongoing Work Aligning Processes
9
What services, standards semantics and
interoperability requirements are needed support
Smart Grid?
Expected outcome
2. Step
Create Architectures
Map onto Architecture Model
t.b.d
4. Step
Identify common
standards
Business Layer
Automation
Technologies
Function Layer
Business Architecture
Automation
Architecture
Interaction Architecture
Technical
Architecture
Goals/
Contextua
l Why?
What services
does the
business
fulfill
What types of
applications are
required
What information
must be
exchanged
What ICT
services are
required
Outline of Usecase
Interoperability
Conceptual
What?
Sources
Business
Input
from
strategy
& context
Subfunctions
Information Layer
Data Model
Data Model
Communication Layer
First set of standards
Market
Protocol
Protocol
Enterprise
Operation
Component Layer
Station
Generation
Transmission
Distribution
Field
Zones
t.b.d
Process
DER
Architecture Model
Domains
US Laws &
Regulations
Customer
Premise
3. Step
Locate standards
usage
Existing
Standards
CEN, CLC,
ETSI
EG1 Report
6 High level services
WG-RA
Architecture Model
Result
• Traceable architecture
• Set of architecture
templates identified
Ongoing Work Aligning Processes
10
How to systematically identify future gaps?
Expected outcome
2. Step
4. Step
Create Architectures
Map onto Architecture Model
Identify new
gaps
Business Layer
Goals/
Contextu
al Why?
Automation
Technologies
Function Layer
Outline of Usecase
Business Architecture
What services
does the
business
fulfill
Automation
Architecture
Interaction Architecture
What types of
applications are
required
What
information
must be
exchanged
Technical
Architecture
What ICT
services are
required
Interoperability
Conceptual
What?
Business
Input
from
strategy
&
context
Subfunctions
Information Layer
Data Model
Data Model
Communication Layer
t.b.d
Target date
from 2013
NEW Gap List
(follow process 2. from here)
Market
Protocol
Protocol
Enterprise
Operation
Component Layer
GAP
Station
Generation
Transmission
Distribution
Field
Zones
Process
DER
Domains
Customer
Premise
Market
CRM
Computer
Enterprise
3. Step
CIM
DMS
IEC 61968-4
Computer
Operation
HMI
50-7-420
Data
Concentrator
IEC 61850-7-4
Locate requirements for standards
HES
Station
IEC 618
Source
Gateway
DER
Controller
RTU
G
HV
Generation
Transmission
MV
Distribution
H
LV
DER
Customer Premise
SGAM
Further findings:
R&D, Pilots, Implementation
HAN
Controller
Field
Process
Result
• Identify “new” gaps
• Systematically investigate
need for new standards
Methodology Results
11

Provide base architecture and process to vet future Smart
Grid requirements

Identify gaps in Smart Grid standardization

Compare different architectures

Identify Cross-cutting requirements

Map regional differences

Identify new services and interoperability requirements

Coordinate work between different TCs and stakeholders
Next steps






Continue on term definitions
Continue on SGAM mapping process definition
Review of SGAC comments on RAWG document
Prioritize crosscutting requirements
Refine processes for semantic mapping and business
context mapping
Gain more exercise with SGAM mapping (DER
management UC)
Refinement of SGAM mapping process / 1


Required Input
UC including actors, roles, functions/services (acc.
definition), sequence diagrams, func. and non-func.
requirements
Refinement of SGAM mapping process / 2


1.
2.
3.
Function Layer
Develop Function Layer
Identify functions/services (in the functional layer,
functions and services can be treated in the same
manner)
Identify interactions of functions/services
Place functions/services on appropriate domain and
zone
Refinement of SGAM mapping process / 3
Information Layer
Need for business context and canonical data model
(CDM) views to cover both instances and data model
aspects of information


1.
Develop Business Context Layer
Place sequence of exchanged information between
functions/services on smart grid plane on appropriate
domain and zone
Refinement of SGAM mapping process / 4
Information Layer cont.
 Develop Canonical Data Model (CDM) Layer
1.
Identify Canonical Data Model (CDM) that supports
interfaces
2.
Identify Canonical Data Model (CDM) that supports
functions
3.
Place CDMs on smart grid plane on appropriate domain
and zone

Refinement of SGAM mapping process / 5
Communication Layer
 Tbd.

Example Use Case
UC: DMS System controls reactive
power of DER unit
 Business Service: Voltage
control in distribution system
 Service:
RTU Data-acquisition
 Service: Voltage/Var control
 Service: Control/Supervision of
DER
 Service: Audit of control actions
Precondition:



Data-acquisition is running
Feeder electric models are
current
Sequence of events:









RTU sends measurement to DMS
Voltage/Var-Control is triggered by
event
Voltage/Var-Control calculates control
value
Voltage/Var-Control sends control
value to DMS
DMS sends controlable setpoint to
DER
DER receives setpoint and
acknowledges
DER adjusts reactive power injection
DMS posts DER control action to audit
of control actions
CRM system obtains audit actions
Component Layer
Market
CRM
Computer
Enterprise
Gateway
DMS
Computer
Operation
HMI
HES
Station
Data
Concentrator
DER
Controller
RTU
G
HV
Generation
Transmission
MV
Distribution
HAN
Controller
H
LV
DER
Customer Premise
Field
Process
Business Layer / Function Layer
Market
Market
CRM
Computer
Audit
CRM
Computer
Enterprise
Enterprise
Gateway
Voltage/Var DMS
Control Computer
Gateway
DMS
Computer
Operation
Operation
HMI
HESives
HMI
ct
obje
e ss r o ce sse s r y
n
i
s
p
Bu
ato
n e ss
egul
Busi ic and r
ints
om
Econ constra
i ce
Serv l in
s
s
e
o
n
Busi e Contr tem
g
s
a
t
y
„Vol ution S
b
i
r
t
Dis
Station
DER
Controller
G
HV
Generation
Transmission
MV
Distribution
HAN
Controller
H
Field
DER
RTU
RTU
Supervision
G
HV
Customer Premise
DER
Controller
Control &
Supervision
HAN
Controller
H
Process
LV
DER
Station
Data
Concentrator
Data
Concentrator
RTU
HES
Generation
Transmission
MV
Distribution
LV
DER
Customer Premise
Field
Process
Information Layer
Business Context (Message) View
Can. Data Model View
Market
Market
CRM
Computer
CRM
Computer
Audit
Enterprise
Enterprise
Ackn
CTRL ACT
Gateway
Gateway
DMS
Voltage/Var
Computer
Control
CIM
DMS
IEC 61968-4
Computer
Operation
Operation
HMI
Concentrator
Data
Concentrator
Ackn
RTU
RTU
Supervision
DER
DER Controller
Generation
Transmission
MV
Distribution
Field
DER
Controller
RTU
HAN
Controller
Field
Control &
Supervision
G
HV
HAN
Controller
Station
850-7-4
Station
Control
Value
Measurement
Data
20
HES
IEC 61
HES
IEC 61850-7-4
HMI
H
G
Process
LV
HV
DER
Customer Premise
Generation
Transmission
MV
Distribution
H
LV
DER
Customer Premise
Process
Communication Layer
Market
CRM
Computer
Enterprise
ESB IEC 61968-100
Gateway
DMS
Computer
IEC 61968-100
HMI
Operation
HES
IEC 61850-8-1
ADSL
Station
IEC 61850-8-1
GPRS
Data
Concentrator
IEC 61850-8-1
IEEE 1901.1
DER
Controller
RTU
G
HV
Generation
Transmission
MV
Distribution
HAN
Controller
H
LV
DER
Customer Premise
Field
Process
Questions ?
How does this work?
Back-up Slides
Electric Research, Engineering, and Consulting
STEPHAN AMSBARY
Director, Utility Enterprise Architecture
Stephan@EnerNex.com
Phone: +1.828.559.1110
FAX: 865.218.8999
1993 Grants Mountain Rd, Marion, NC, 28752-9513