Network Working Group J. Parello
Internet-Draft Cisco Systems, Inc.
Intended Status: Informational
Expires: April 19, 2014 October 19, 2013
Energy Management Terminology
draft-parello-eman-definitions-09
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Abstract
This document contains definitions and terms used in the
Energy Management Working Group. Each term contains a
definition(s), example, and reference to a normative,
informative or well know source. Terms originating in this
draft should be either composed of or adapted from other
terms in the draft with a source. The defined terms will
then be used in other drafts as defined here
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Table of Contents
1. Introduction..........................................
3
2. Terminology...........................................
3
3. Relationship to Other Standards.......................
9
4. Security Considerations...............................
9
5. IANA Considerations...................................
9
6. References............................................
9
7. Acknowledgments......................................
10
1. Introduction
Within Energy Management there are terms that may seem
obvious to a casual reader but in fact require a rigorous
and sourced definition. To avoid any confusion in terms
among the working group drafts, one glossary / lexicon of
terms should exist that all drafts can refer to. This will
avoid a review of terms multiplied across drafts.
This draft will contain a glossary of definitions of terms
that can be agreed upon by the working group outside of the
context of drafts and then included in or sourced to this
draft.
Each term will contain a definition(s), a normative or
informative reference, an optional example, an optional
comment(s) listed a note(s).
All terms should be rooted with a well-known reference. If
a definition is taken verbatim from a reference then the
source is listed in square brackets. If a definition is
derived from a well-known reference then the source is
listed as "Adapted from" with the reference listed in
square brackets. If a defined term is newly defined here
the reference will indicate as such by stating "herein" and
if applicable list any composing terms from this document.
The terms are listing in an order that aids in reading
where terms may build off a previous term as opposed to an
alphabetical ordering. Some terms that are common in
electrical engineering or that describe common physical
items use a lower case notation.
2. Terminology
$ Energy Management
Energy Management is a set of functions for measuring,
modeling, planning, and optimizing networks to ensure
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that the network and network attached devices use energy
efficiently and appropriately for the nature of the
application and the cost constraints of the organization.
Reference: Adapted from [ITU-T-M-3400]
NOTES:
1. Energy management refers to the activities, methods,
procedures and tools that pertain to measuring, modeling,
planning, controlling and optimizing the use of energy in
networked systems [NMF].
2. Energy Management is a management domain which is
congruent to any of the FCAPS areas of management in the
ISO/OSI Network Management Model [TMN]. Energy Management
for communication networks and attached devices is a
subset or part of an organization's greater Energy
Management Policies.
$ Energy Management System (EnMS)
An Energy Management System is a combination of hardware
and software used to administer a network with the
primary purpose of energy management.
Reference: Adapted from [1037C]
NOTES:
1. An Energy Management System according to [ISO50001]
(ISO-EnMS) is a set of systems or procedures upon which
organizations can develop and implement an energy policy,
set targets, action plans and take into account legal
requirements related to energy use. An ISO-EnMS allows
organizations to improve energy performance and
demonstrate conformity to requirements, standards, and/or
legal requirements.
2. Example ISO-EnMS: Company A defines a set of policies
and procedures indicating there should exist multiple
computerized systems that will poll energy from their
meters and pricing / source data from their local
utility. Company A specifies that their CFO should
collect information and summarize it quarterly to be sent
to an accounting firm to produce carbon accounting
reporting as required by their local government.
3. For the purposes of EMAN, the definition from [1037C]
is the preferred meaning of an Energy Management System
(EnMS). The definition from [ISO50001] can be referred to
as ISO Energy Management System (ISO-EnMS).
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$ Energy Monitoring
Energy Monitoring is a part of Energy Management that
deals with collecting or reading information from Energy
Objects to aid in Energy Management.
$ Energy Control
Energy Control is a part of Energy Management that deals
with directing influence over Energy Objects.
$ electrical equipment
A general term including materials, fittings, devices,
appliances, fixtures, apparatus, machines, etc., used as
a part of, or in connection with, an electric
installation.
Reference: [IEEE100]
$ non-electrical equipment (mechanical equipment)
A general term including materials, fittings, devices
appliances, fixtures, apparatus, machines, etc., used as
a part of, or in connection with, non-electrical power
installations.
Reference: Adapted from [IEEE100]
$ device
A piece of electrical or non-electrical equipment.
Reference: Adapted from [IEEE100]
$ component
A part of an electrical or non-electrical equipment
(device).
Reference: Adapted from [ITU-T-M-3400]
$ power inlet
A Power Inlet (or simply inlet) is an interface at which
a device or component receives energy from another device
or component.
$ power outlet
A power outlet (or simply outlet) is an interface at
which a device or component provides energy to another
device or component.
$ energy
That which does work or is capable of doing work. As used
by electric utilities, it is generally a reference to
electrical energy and is measured in kilowatt hours
(kWh).
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Reference: [IEEE100]
$ power
The time rate at which energy is emitted, transferred, or
received; usually expressed in watts (joules per second).
Reference: [IEEE100]
$ demand
The average value of power or a related quantity over a
specified interval of time. Note: Demand is expressed in
kilowatts, kilovolt-amperes, kilovars, or other suitable
units.
Reference: [IEEE100]
NOTES:
1. While IEEE100 defines demand in kilo measurements, for
EMAN we use watts with any suitable metric prefix.
NOTES
1. Energy is the capacity of a system to produce external
activity or perform work [ISO50001]
$ provide energy
A device (or component) "provides" energy to another
device if there is an energy flow from this device to the
other one.
$ receive energy
A device (or component) "receives" energy from another
device if there is an energy flow from the other device
to this one.
$ meter (energy meter)
a device intended to measure electrical energy by
integrating power with respect to time.
Reference: Adapted from [IEC60050]
$ battery
one or more cells (consisting of an assembly of
electrodes, electrolyte, container, terminals and usually
separators) that are a source and/or store of electric
energy.
Reference: Adapted from [IEC60050]
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$ Power Interface
A power inlet, outlet, or both.
$ Nameplate Power
The Nameplate Power is the nominal Power of a device as
specified by the device manufacturer.
$ Power Attributes
Measurements of the electrical current, voltage, phase
and frequencies at a given point in an electrical power
system.
Reference: Adapted from [IEC60050]
NOTES:
1. Power Attributes are not intended to be judgmental
with respect to a reference or technical value and are
independent of any usage context.
$ Power Quality
Characteristics of the electrical current, voltage, phase
and frequencies at a given point in an electric power
system, evaluated against a set of reference technical
parameters. These parameters might, in some cases, relate
to the compatibility between electricity supplied in an
electric power system and the loads connected to that
electric power system.
Reference: [IEC60050]
NOTES:
1. Electrical characteristics representing power quality
information are typically required by customer facility
energy management systems. It is not intended to satisfy
the detailed requirements of power quality monitoring.
Standards typically also give ranges of allowed values;
the information attributes are the raw measurements, not
the "yes/no" determination by the various standards.
Reference: [ASHRAE-201]
$ Power State
A Power State is a condition or mode of a device that
broadly characterizes its capabilities, power
consumption, and responsiveness to input.
Reference: Adapted from [IEEE1621]
$ Power State Set
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A Power State Set is a collection of Power States that
comprises a named or logical control grouping.
$ Energy Object
An Energy Object is an information model (class) that
represents a piece of equipment that is part of, or
attached to, a communications network which is monitored,
controlled, or aids in the management of another device
for Energy Management.
$ Energy Management Domain
An Energy Management Domain is a set of Energy Objects
that is considered one unit of management.
$ Energy Object Identification
Energy Object Identification is a set of attributes that
enable an Energy Object to be universally unique or
linked to other systems.
$ Energy Object Context
Energy Object Context is a set of attributes that allow
an Energy Management System to classify an Energy Object
within an organization.
$ Energy Object Relationship
An Energy Object Relationship is an association among
Energy Objects.
NOTES
1. Relationships can be named and could include
Aggregation, Metering, and Power Source.
Reference: Adapted from [CHEN]
$ Power Source Relationship
A Power Source Relationship is an Energy Object
Relationship where one Energy Object provides power to
one or more Energy Objects. These Energy Objects are
referred to as having a Power Source Relationship.
$ Metering Relationship
A Metering Relationship is an Energy Object Relationship
where one Energy Object measures power, energy, demand or
power attributes of one or more other Energy Objects. The
measuring Energy Object has a Metering Relationship with
each of the measured objects.
$ Aggregation Relationship
An Aggregation Relationship is an Energy Object
Relationship where one Energy Object aggregates Energy
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Management information of one or more other Energy
Objects. The aggregating Energy Object has an Aggregation
Relationship with each of the other Energy Objects.
$ Proxy Relationship
A Proxy Relationship is an Energy Object Relationship
where one Energy Object provides the Energy Management
capabilities on behalf of one or more other Energy
Objects. These Energy Objects are referred to as having a
Proxy Relationship.
3. Relationship to Other Standards
When applicable the [IEEE100] was used as the preferred
source. If a term was not available from [IEEE100], then
[IEC60050] was used. When these were multiple items from
[IEEE100], [IEC60050] or [ISO50001], there were all included.
4. Security Considerations
None
5. IANA Considerations
None
6. References
Normative References
Informative References
[IEEE1621] "Standard for User Interface Elements in Power
Control of Electronic Devices Employed in
Office/Consumer Environments", IEEE 1621,
December 2004
[ITU-T-M-3400] TMN recommandation on Management Functions
(M.3400), 1997
[NMF] "Network Management Fundamentals", Alexander Clemm,
ISBN: 1-58720-137-2, 2007
[TMN] "TMN Management Functions : Performance Management",
ITU-T M.3400
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[1037C] US Department of Commerce, Federal Standard 1037C,
http://www.its.bldrdoc.gov/fs-1037/fs-1037c.htm
[IEEE100] "The Authoritative Dictionary of IEEE Standards
Terms"
http://ieeexplore.ieee.org/xpl/mostRecentIssue.js
p?punumber=4116785
[ISO50001] "ISO 50001:2011 Energy management systems -
Requirements with guidance for use",
http://www.iso.org/
[IEC60050] International Electrotechnical Vocabulary
http://www.electropedia.org/iev/iev.nsf/welcome?o
penform
[ASHRAE-201] "ASHRAE Standard Project Committee 201
(SPC 201)Facility Smart Grid Information
Model", http://spc201.ashraepcs.org
[CHEN] "The Entity-Relationship Model: Toward a Unified
View of Data", Peter Pin-shan Chen, ACM
Transactions on Database Systems, 1976
7. Acknowledgments
The author would like to thank the authors of the current
working group drafts for the discussions and definition
clarifications.
This document was prepared using 2-Word-v2.0.template.dot.
Authors' Addresses
John Parello
Cisco Systems, Inc.
3550 Cisco Way
San Jose, California 95134
US
Phone: +1 408 525 2339
Email: jparello@cisco.com
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