facility smart grid information model steven t. bushby engineering laboratory wg1-n1605
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Facility Smart Grid Information Model
Steven T. Bushby
Engineering Laboratory
WG1-N1605
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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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.
P
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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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PHEVsChillers
Servers
Fans
ICT Systems
Lighting
Customer Energy Management System (CEMS)
A Physical Example of SPC 201P Energy Objects
Ice Storage
Solar PV
AHUs
StatsMeter
Cameras
Smart Grid
Smart Grid
Battery Storage
SubMeter
6
GL
EM
M
1212Customer Energy
Management System (CEMS)
Sub Meter
11 Ice Storage
1313Battery StorageGL
55 ThermostatEM
Fans22
33 AHUs
L
L
1414
Chillers1111 L
PHEVs1010 GL
M Meter66
Servers
Lighting
77
88
Cameras
L
L
L1515
Virtual LoadAA L
99Solar PVG
EM
Sm
art
Grid
Sm
art
Grid
ESI
ESI
EM
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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 Protocol-Specific 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?
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FacilityManagement
FacilityManagement
IndustrialAutomation
IndustrialAutomation
SecurityLightingHVAC
Energy UsageInformation
Energy UsageInformation
DemandResponseDemand
ResponseReal-time Energy
PricingReal-time Energy
PricingWeather Data
ESI Energy Manager::ESI_EM
Interval
ESI Energy Manager::ESI_EMInterv alData
Loosely Coupled -- may be sourced external to facility
Internal to facility status and control
Tightly Coupled -- Local control categories
EmixInterfaceTypeUsagePoint
ESI Energy Manager::EMUsagePoint
ComponentElement
Core Energy Manager::EM
ComponentElement
Generator Component::
Generator
Interfacing to outside the facility
LoadReductionType
ESI Energy Manager::EMLoadReductionType
GenerationType
ESI Energy Manager::
EMGenerationType
FSGIM
ComponentElement
Load Component::Load
...
ComponentElement
Meter Component::Meter
...
supervisoryView 0..1
meters 0..*energyManagers 0..* loads0..* generators 0..*
usagePoint1
meter 0..* supervisoryView 0..1
criticalLoads
0..*
knownLoads
0..*
loadsToShed
0..*
energyStorage-Loads
0..*
onsiteGeneration
0..*
energyStorage-Injection
0..*
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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• 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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Overview of FSGIM Structure
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Facility Communications
Protocol
1001001100….
FSGIM Abstract Model
Mapping of FSGIM Conformance Blocks to Facility Protocol’s
Representations
Pro
toco
l Rep
rese
ntat
ions
Sup
port
ed
Protocol Conformance
Generator Component
Model
Load Component
Model
Meter Component
Model
Energy Manager Component
Model
Generator Conformance
Blocks
Load Conformance
Blocks
Meter Conformance
Blocks
Energy Manager Conformance
Blocks
Facility Communications
Protocol Conformance
Methods
ProtocolRepresentations
Mapping of Datatypes
Mapping of Conformance Block Behaviors
Preserved context and multiplicities
Conformance
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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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• 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.
Conformance
Goal: Published Standard in 2013
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
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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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