WG1-N1605
Facility Smart Grid Information
Model
Steven T. Bushby
Engineering Laboratory
ASHRAE/ NEMA Partnership
• The proposed FSGIM is based on industry needs
identified at part of the SGIP PAP 17
• Being developed jointly by ASHRAE and NEMA under
ASHRAE ‘s ANSI approved procedures
• Parallel international standardization in ISO/TC 205
Building Environment Design
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P
PURPOSE: The purpose of this standard is to define an
abstract, object-oriented information model to enable appliances
and control systems in homes, buildings, and industrial facilities
to manage electrical loads and generation sources in response
to communication with a “smart” electrical grid and to
communicate information about those electrical loads to utility
and other electrical service providers.
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The model will support a wide range of energy management
applications and electrical service provider interactions
including:
(a) on-site generation,
(b) demand response,
(c) electrical storage,
(d) peak demand management,
(e) forward power usage estimation,
(f) load shedding capability estimation,
(g) end load monitoring (sub metering),
(h) power quality of service monitoring,
(i) utilization of historical energy consumption data, and
(j) direct load control.
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Participants in the Process
•Commercial/Institutional/Industrial Producers
•Appliance, Residential Automation, and Consumer Electronics
Producers
•Consumers — Residential, Commercial, and Industrial
•Utility
•General
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A Physical Example of SPC 201P Energy Objects
Solar PV
Cameras
Lighting
Ice Storage
Servers
ICT Systems
Fans
AHUs
Customer Energy Management System
(CEMS)
Meter
Stats
Smart
Grid
SubMeter
PHEVs
Chillers
Battery Storage
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12
Customer Energy
Management System (CEMS)
EM
ESI
5
EM
Smart Grid
7
G
1
L
EM
M
Ice Storage
G
L
11
L
AHUs
Chillers
Servers
L
Sub Meter
M
Fans
L
3
EM
A
13
L
G
10
L
G
Battery
Storage
PHEVs
Virtual Load
L
ESI
6
Solar PV
Thermostat
14
2
9
8
L
15
L
Lighting
Meter
Cameras
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Builds on Other Standards
Significant portions of the FSGIM model are built from related
industry standards including:
•IEC 61850
•NAESB energy usage information standards (based on CIM)
•OASIS EMIX
•OASIS Energy Interoperation
•OASIS WS-Calendar
•WXXM
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Seed Standard for ProtocolSpecific Standards
• The intended users of the FSGIM are other standards bodies
developing or maintaining control protocol standards in
various types of facilities.
• The model is being developed in a normative UML
representation to facilitate the use of electronic tools.
• The text version of the standard is generated in a (mostly)
automated way from the UML model.
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What Role Does the FSGIM Model Play?
Loosely Coupled -- may be sourced external to facility
Weather Data
Real-time Energy
Pricing
Demand
Response
Energy Usage
Information
...
FSGIM
Interfacing to outside the facility
ESI Energy Manager::ESI_EM
energyStorage-Injection
knownLoads
criticalLoads
onsiteGeneration
loadsToShed
energyStorage-Loads
0..*
Interval
EmixInterfaceType
UsagePoint
ESI Energy Manager::
ESI_EMInterv alData
ESI Energy Manager::
EMUsagePoint
meter
ComponentElement
0..*
ComponentElement
Meter Component::Meter
energyManagers 0..*
0..*
0..*
LoadReductionType
ESI Energy Manager::
EMLoadReductionType
0..*
0..*
GenerationType
ESI Energy
Manager::
EMGenerationType
1 usagePoint
Internal to facility status and control
Core Energy Manager::EM
0..*
meters
0..*
supervisoryView
0..1
ComponentElement
Load Component::Load
0..*
loads
supervisoryView
0..1
ComponentElement
Generator
Component::
Generator
generators
0..*
Tightly Coupled -- Local control categories
HVAC
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Lighting
Security
Facility
Management
Industrial
Automation
...
Overview of FSGIM Structure
• Clause 1-3 – Purpose, Scope, Definitions
• Clause 4 FSGIM Structure and Usage – background information to
guide reader
• Clause 5 Model components
– Meter Component – and abstract representation of any device that
measures electricity or emissions;
– Load Component -- an abstract representation of any device that
consumes electricity;
– Generator Component -- an abstract representation of any device that
produces electricity;
– Energy Manager Component -- an abstract representation of any device
that makes control decisions about energy generation or consumption;
and
– Weather Component -- an abstract representation of weather
measurement and forecast information.
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Overview of FSGIM Structure
•
•
•
•
•
•
Clause 6 Primitive Types, Classes and Enumerations
Clause 7 Conformance Requirements
Clause 8 References
Annex A – UML Model (Normative)
Annex B – UML Basics (Informative)
Example Use Cases
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Conformance
Generator
Component
Model
Energy Manager
Conformance
Blocks
Facility
Communications
Protocol
Conformance
Methods
Generator
Conformance
Blocks
Preserved context
and multiplicities
Load
Component
Model
Meter
Component
Model
Load
Conformance
Blocks
Meter
Conformance
Blocks
Mapping of FSGIM
Conformance Blocks
to Facility Protocol’s
Representations
Protocol
Representations
Facility
Communications
Protocol
FSGIM Abstract
Model
Mapping of Datatypes
Mapping of Conformance
Block Behaviors
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1001001100….
Protocol Representations Supported
Energy Manager
Component
Model
Protocol
Conformance
Conformance
• Conformance to the FSGIM ensures that a facility
communications protocol conforms to one or more
conformance blocks derived from the FSGIM abstract model.
– A conformance block is a collection of classes and attributes and
behaviors derived from the components within the FSGIM abstract
model.
– Conformance blocks are intended to contain a concrete set of related
functionality within a model component.
– A complete set of conformance blocks contains the entire set of
attributes and behaviors of a FSGIM model component.
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Conformance
• In order to be conformant to the FSGIM, an SSO shall be
required demonstrate the following requirements:
– The SSO shall document any restrictions on the range or resolution of
the FSGIM data types that are used.
– The SSO shall document the conformance blocks for which they
conform.
– The SSO shall identify how required and optional attributes in each
conformance block is represented in their standard.
– The SSO shall document how their standard satisfies the behaviors for
the conformance blocks.
– The SSO shall document how its conformance procedures will ensure
that a device implementation can specify conformance to the FSGIM
and how the SSO’s conformance testing will ensure compliance.
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SPC 201P Development Timeline
•SPC formed July 2010
•1st meeting August 2010
•Advisory public review December 2012
•Publication public review expected in summer 2013
•The SPC 201P committee meets monthly
Goal: Published Standard in 2013
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Further Information
• ASHRAE SPC 201P http://spc201.ashraepcs.org/
• SGIP http://www.sgip.org/
• NIST Web portal: http://www.nist.gov/smartgrid
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