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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