NZ599079B - Method, system and device of phase identification using a smart meter - Google Patents
Method, system and device of phase identification using a smart meter Download PDFInfo
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- NZ599079B NZ599079B NZ599079A NZ59907912A NZ599079B NZ 599079 B NZ599079 B NZ 599079B NZ 599079 A NZ599079 A NZ 599079A NZ 59907912 A NZ59907912 A NZ 59907912A NZ 599079 B NZ599079 B NZ 599079B
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D4/00—Tariff metering apparatus
- G01D4/002—Remote reading of utility meters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/18—Indicating phase sequence; Indicating synchronism
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00012—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using an auxiliary transmission line
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase networks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/30—State monitoring, e.g. fault, temperature monitoring, insulator monitoring, corona discharge
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/30—Smart metering, e.g. specially adapted for remote reading
Abstract
Patent 599079 Disclosed is a meter (106) comprised of one or more switches (204) and metering components (208, 210). The one or more switches (204) are used to connect a device (102) to at least a first phase of a poly-phase electrical system. The metering components (208, 210) are used to meter at least the first phase (A) of the poly-phase electrical system that the device (102) is connected to for electrical consumption information. The meter (106) also comprises a memory, at least one network interface and a processor. The processor is operably connected with the one or more switches (204), the metering components (208, 210), the memory and the at least one network interface. The processor is configured to store in the memory a first phase identifier for the first phase (A) of the poly-phase electrical system that the device (102) is connected to. The processor is also configured to control the one or more switches (204) to switch the device (102) such that the device (102) is connected to at least a second phase (B) of the poly-phase electrical system such that the metering components (208, 210) meter at least the second phase (B) of the poly-phase electrical system. The processor is configured to then store a second phase identifier for the second phase (B) of the poly-phase electrical system that the device (102) is connected to in the memory associated with the meter (106). at least the first phase (A) of the poly-phase electrical system that the device (102) is connected to for electrical consumption information. The meter (106) also comprises a memory, at least one network interface and a processor. The processor is operably connected with the one or more switches (204), the metering components (208, 210), the memory and the at least one network interface. The processor is configured to store in the memory a first phase identifier for the first phase (A) of the poly-phase electrical system that the device (102) is connected to. The processor is also configured to control the one or more switches (204) to switch the device (102) such that the device (102) is connected to at least a second phase (B) of the poly-phase electrical system such that the metering components (208, 210) meter at least the second phase (B) of the poly-phase electrical system. The processor is configured to then store a second phase identifier for the second phase (B) of the poly-phase electrical system that the device (102) is connected to in the memory associated with the meter (106).
Description
Patent Form No. 5
NEW ZEALAND
Patents Act 1953
COMPLETE SPECIFICATION
TITLE: METHOD, SYSTEM AND DEVICE OF PHASE IDENTIFICATION USING A
SMART METER
We General Electric Company of 1 River Road, Schenectady, New York, 12345, United States of
America, do hereby declare the invention, for which we pray that a patent may be granted to us, and
the method by which it is to be med, to be particularly described in and by the following
statement:
4003q
METHOD, SYSTEM AND DEVICE OF PHASE IDENTIFICATION USING A SMART
METER
This ation claims priority from United States Application No. 13/074,399
filed on 29 March 2011, the contents of which are to be taken as incorporated herein by this
reference.
BACKGROUND OF THE ION
In many instances, utility providers desire to electronically communicate with the
utility e meters for numerous purposes including scheduling disconnection or connection
of utility services to the d loads, automatic meter reading (AMR), load shedding and
load control, automatic distribution and smart-grid applications, outage reporting, providing
onal services such as Internet, video, and audio, etc. In many of these instances, to
perform these functions the meters must be configured to communicate with one or more
computing s through a communications k, which can be wired, wireless or a
ation of wired and wireless, as known to one of ordinary skill in the art.
In many instances, such meters are also equipped with an electromechanical switch
that can be actuated remotely to perform functions such as disconnection or connection of
utility services to the metered loads, load shedding and load control, and the like. However, in
many instances the utility also desires to know which phase or phases of a poly-phase
electrical system the load is connected, or which phase or phases a load control relay is
connected. One challenge faced by the utilities is that the records are incomplete or inaccurate
that indicate to a smart meter installer which phase an individual customer is connected.
Therefore, in order to tely identify the current phase of a particular feeder branch, utility
company personnel must physically trace a cable run back through various distribution
facilities until they reach a point in the bution network at which the phase is definitively
known. This can be a very time-consuming and labor-intensive process, which can often lead
to incorrect information. During storms or emergencies this can also lead to safety issues as
well. When a utility ms various operations such as load profiling, analyzing power
quality, loading of each phase, distribution system ng, and the like, it is important to
know on which phase or phases the smart meters are connected so that analysis can be done
with respect to each phase.
Therefore, systems and methods are desired that provide phase identification of a
smart meter that overcome challenges present in the art, some of which are described above.
BRIEF DESCRIPTION OF THE INVENTION
[0005] Described herein are ments of methods, devices and s for phase
identification of a smart meter.
According to an aspect of the present invention, there is provided a method,
operable in a sor, for phase identification, said method comprising: ting a device
to at least a first phase of a poly-phase electrical system; metering at least the first phase of the
poly-phase electrical system that the device is connected to for electrical consumption
information using a meter; storing a first phase identifier for the first phase of the poly-phase
electrical system that the device is connected to in a memory associated with the meter;
switching the device such that the device is connected to at least a second phase of the polyphase
ical system; metering at least the second phase of the poly-phase electrical system
that the device is connected to for electrical consumption information using the meter; and
storing a second phase identifier for the second phase of the poly-phase electrical system that
the device is connected to in the memory ated with the meter.
According to another aspect of the present invention, there is provided a meter
sed of one or more switches, wherein the one or more switches are used to t a
device to at least a first phase of a poly-phase ical system; metering components, wherein
the metering components are used to meter at least the first phase of the poly-phase electrical
system that the device is connected to for electrical consumption information; a memory; at
least one k interface; and a processor, wherein the processor is operably connected with
the one or more switches, the metering components, the memory and the at least one network
interface, n the processor is configured to: store a first phase identifier for the first
phase of the poly-phase electrical system that the device is connected to in the memory; and
control the one or more switches to switch the device such that the device is connected to at
least a second phase of the poly-phase electrical system such that the metering components
meter at least the second phase of the poly-phase electrical system; and store a second phase
identifier for the second phase of the poly-phase electrical system that the device is connected
to in the memory ated with the meter.
According to yet another aspect, there is provided a system for phase identification for
a meter comprised of: a computing ; a meter comprised of: one or more switches used to
connect a device to at least a first phase of a poly-phase electrical system; metering
ents used to meter at least the first phase of the poly-phase electrical system that the
device is connected to for electrical consumption information; a memory; at least one network
ace that operably ts the meter with a network; a processor operably connected
with the one or more switches, the metering components, the memory and the at least one
network interface, wherein the sor is configured to: store a first phase identifier for the
first phase of the poly-phase electrical system that the device is connected to in the memory;
l the one or more switches to switch the device such that the device is connected to at
least a second phase of the poly-phase electrical system such that the metering components
meter at least the second phase of the poly-phase electrical system; and store a second phase
identifier for the second phase of the poly-phase electrical system.
Additional advantages will be set forth in part in the description which follows or
may be learned by practice. The advantages will be realized and ed by means of the
elements and combinations particularly pointed out in the appended claims. It is to be
understood that both the ing l description and the following detailed description
are exemplary and explanatory only and are not restrictive, as claimed.
A reference herein to a patent document or other matter which is given as prior art
is not to be taken as an admission that that document or matter was known or that the
information it contains was part of the common general knowledge as at the priority date of
any of the .
BRIEF DESCRIPTION OF THE DRAWINGS
The accompanying gs, which are incorporated in and constitute a part of
this specification, illustrate embodiments and together with the description, serve to explain
the principles of the methods and systems:
is a single-line block m of a section of an exemplary utility
distribution ;
is an exemplary illustration of a three-phase, four-wire (phases A, B, C
and neutral, N) distribution system 104 according to one embodiment of the present invention;
illustrates an overview block diagram of a non-limiting embodiment of a
meter that can be used to practice embodiments of the present invention;
illustrates an ment of a meter used to meter a poly-phase ical
service serving a load;
illustrates a block diagram of an entity capable of ing as meter
electronics in accordance with one embodiment of the present invention;
is a flowchart rating the ions that may be taken for phase
identification in a smart meter;
is another flowchart illustrating the operations that may be taken for phase
identification in a smart meter;
is a flowchart illustrating the operations that can be taken to switch a device
from a first phase connection to a second phase connection and to update the phase identifier
for the device connection using a computing device such as the one described in reference to
below; and
is a block diagram illustrating an exemplary operating environment for
performing the disclosed methods.
DETAILED DESCRIPTION OF THE INVENTION
Before the present methods and systems are disclosed and described, it is to be
understood that the methods and systems are not limited to specific synthetic methods, specific
components, or to particular compositions. It is also to be understood that the terminology
used herein is for the purpose of describing particular embodiments only and is not intended to
be limiting.
As used in the specification and the appended claims, the singular forms “a,” “an”
and “the” e plural referents unless the context clearly dictates otherwise. Ranges may be
sed herein as from “about” one particular value, and/or to “about” another ular
value. When such a range is expressed, another embodiment includes from the one particular
value and/or to the other particular value. Similarly, when values are expressed as
approximations, by use of the antecedent ,” it will be understood that the particular
value forms another embodiment. It will be further understood that the nts of each of
the ranges are significant both in relation to the other endpoint, and independently of the other
endpoint.
“Optional” or “optionally” means that the subsequently described event or
circumstance may or may not occur, and that the description includes instances where said
event or circumstance occurs and instances where it does not.
Throughout the description and claims of this specification, the word “comprise”
and ions of the word, such as “comprising” and “comprises,” means “including but not
limited to,” and is not intended to exclude, for example, other additives, components, integers
or steps. “Exemplary” means “an example of” and is not intended to convey an indication of a
preferred or ideal ment. “Such as” is not used in a restrictive sense, but for explanatory
purposes.
Disclosed are components that can be used to perform the disclosed s and
systems. These and other components are disclosed herein, and it is understood that when
combinations, subsets, interactions, groups, etc. of these components are disclosed that while
specific reference of each various individual and collective combinations and ation of
these may not be explicitly disclosed, each is specifically contemplated and described herein,
for all methods and systems. This applies to all aspects of this application including, but not
d to, steps in disclosed methods. Thus, if there are a variety of additional steps that can
be performed it is understood that each of these onal steps can be performed with any
ic embodiment or combination of embodiments of the disclosed methods.
The present methods and systems may be understood more readily by reference to
the following detailed description of red embodiments and the Examples included
therein and to the Figures and their previous and following description.
[0018] Referring to , an illustration of one type of system that would benefit from
embodiments of the present invention is provided. is a single-line block diagram of a
n of an exemplary utility distribution system such as, for example, an electric
distribution system. As shown in , a utility service is delivered by a utility provider
100 to various loads L1-Ln 102 through a distribution system 104. In one aspect, the utility
e ed can be electric power. Though shown in as a single-line diagram, it
is to be appreciated that the distribution system 104 can be comprised of -phase and/or
poly-phase components and be of g voltage levels. Consumption and demand by the
loads 102 can be measured at the load locations by meters M1-Mn 106. If an electric meter,
the meters 106 can be single-phase or hase electric meters, as known to one of ordinary
skill in the art, depending upon the load 102. For example, the load can be single-phase and
therefore the meter 106 can be single phase. Single-phase loads can be connected to different
phases (e.g., phase A, phase B or phase C) of the distribution system 104. Similarly, for
example, the load 102 can be a poly-phase load such as a three-phase load and the meter 106
can be a three-phase meter that meters the three phases serving the load 102.
In one aspect, the ic meter 106 is a smart meter as described herein and as
known to one of ordinary skill in the art. Hereinafter, the specification will refer to the meter
106 as a “meter,” “electric meter,” and/or “smart meter,” where the terms can be used
interchangeably. One non-limiting example of a smart meter is the GE I210+c meter as
available from General Electric Company (“GE”) (Schenectady, NY). Another non-limiting
example of a smart meter is the GE SM3000 meter as also available from GE. While
consumption or demand information is used by the utility provider 100 primarily for billing
the consumer, it also can be used for other purposes including planning and profiling the
utility distribution system. In some instances, utility providers 100 desire to electronically
communicate with the meters 106 for numerous es ing scheduling disconnection
or connection of utility services to the loads 102, automatic meter reading (AMR), load
shedding and load control, automatic distribution and smart-grid applications, outage
reporting, providing additional services such as et, video, and audio, etc. In many of
these instances, the meters 106 must be configured to communicate with one or more
computing devices 108 through a communications network 110, which can be wired, wireless
or a combination of wired and ss, as known to one of ordinary skill in the art. In one
aspect, the network 110 is an advanced ng infrastructure (AMI) network. AMI refers to
systems that measure, collect and analyze energy usage, and interact with advanced devices
such as electricity meters, gas meters, water meters, and the like through various
communication media either on request (on-demand) or on pre-defined schedules. This
infrastructure includes hardware, software, ications, consumer energy displays and
controllers, customer associated s, meter data management (MDM) software, supplier
and network distribution business s, and the like. The network 110 between the
measurement devices (e.g., meters 106) and business systems allows collection and
distribution of information to customers, suppliers, utility companies and service providers.
This enables these sses to either ipate in, or provide, demand se solutions,
products and services. By providing information to ers, the system assists a change in
energy usage from their normal consumption patterns, either in response to changes in price or
as ives designed to encourage lower energy usage use at times of peak-demand s
or higher wholesale prices or during s of low operational systems reliability. In one
aspect, the network 110 comprises at least a portion of a smart grid network. In one aspect,
the network 110 utilizes one or more of one or more of a WPAN (e.g., ZigBee, Bluetooth),
LAN/WLAN (e.g., 802.11n, microwave, laser, etc.), WMAN (e.g., WiMAX, etc.),
WAN/WWAN (e.g., UMTS, GPRS, EDGE, CDMA, GSM, CDPD, x, HSDPA,
HSUPA, 3G, etc.), RS232, USB, Firewire, Ethernet, wireless USB, cellular, OpenHAN, power
line carrier (PLC), broadband over power lines (BPL), and the like. Such meters 106 can be
equipped with one or more switches that can be used to remotely connect or disconnect the
service or product delivered.
For example, in some instances an electrical distribution system 104 may be a
poly-phase system such as a three-phase, four-wire network, which supplies power-using
feeders. Each of the feeder lines then branches into multiple circuits to power a plurality of
local pole-mounted or pad-mounted transformers, which step the voltage down to final
voltages of, for e, 120 or 240 volts per phase for delivery and metering at commercial
and residential customer locations. Generally, residential customers can be connected to any
one phase of the phase system using a single-phase meter and commercial customers can
be connected to all the three phases using phase meter with a load control relay (“LCR”)
connected on any one of the phases. When a utility performs various ions such as load
profiling, analyzing power quality, loading of each phase, etc., it is desired to know on which
phase smart meter is ted so that the analysis can be performed with respect to each
phase. Such a system as described above is illustrated in . is an exemplary
illustration of a three-phase, ire (phases A, B, C and neutral, N) distribution system 104
according to one embodiment of the present invention. As shown in , distribution
system 104 is comprised of three phase conductors (phases A, B and C) and a neutral wire. In
one aspect, each of three phases and the neutral are ed to each meter 106. In one aspect,
the voltage provided at the meters 106 is stepped down by a transformer 114 to a level that can
be used by the load 102 (e.g. 120/240, 277/480, and the like). The transformer 114 can be two
or three -phase transformers, or a single three-phase transformer. In one aspect, the load
102 can be single phase, and the meter 106 can be configured to switch n phases A, B
and C to serve the load 102, or to disconnect the load 102 from electric service. In one ,
this switching can be manually performed. In another aspect, this switching can be performed
automatically and remotely. In another , the load 102 can be three-phase and can be
metered by a three-phase meter 106. In one aspect, the three-phase meter can comprise a load
control relay (LCR) 112. In one aspect, the three-phase meter 106 can be configured to switch
between phases A, B and C to serve the LCR 112, or to disconnect the LCR 112 from ic
service. In one aspect, this switching can be manually performed. In another aspect, this
switching can be med automatically and remotely. For balancing the load on each phase
of the distribution system 104 and performing other utility functions and analysis, it is desired
to know the phase that a load 102 is connected or the phase that a LCR 112 is connected.
Methods, s and devices to determine the phase to which meter is ted
in case of a single-phase meter and the phase to which a LCR is ted in case of polyphase
meter are desired. Therefore, it is d that the meters 106 of a system such as that
shown in FIGS. 1A and 1B are configured to have capabilities beyond that of ement of
utility service consumption. Described herein are embodiments of methods, devices and
systems for phase identification in a smart meter. In one aspect, a field for phase identification
is maintained in a memory of a smart meter. The phase fier can be read or written
(depending on security) by a utility using advanced communication techniques such as AMI,
Optical, RF, WiMax, LAN/WAN, GSM, etc., and meter software (e.g., GE Meter MateTM
software). In case of a single-phase meter, this field can represent the phase to which the main
relay is connected and in the case of poly-phase meter (e.g., three-phase), this field can
represent the phase to which an LCR is connected. In one aspect, the phase identification field
can be configured to update automatically. For e, if a meter is configured such that it
can switch the phase that serves the load (and that is being metered), then such a meter can be
configured to automatically populate the phase identifier field with the phase to which the load
is connected. Such a meter that can switch phases is described in United States Patent
Application serial no. 12/987,301 by Pamulaparthy, filed January 10, 2011, which is fully
incorporated herein by reference and made a part hereof. In another aspect, the phase
identification field can be provided over the k to the meter if an entire feeder has been
ed using, for example, automated distribution switches as part of a smart-grid
implementation. In another aspect, the phase identification field can be stored manually
whenever phase configuration as stated above is changed for a particular meter. For example,
in automatic population of the phase identifier field, upon receiving a command to switch
phases (for example, from phase A to phase B), the phase to which meter is currently
connected is read (phase A) and a relay will be switched to phase B and the phase identifier
field will be updated from phase A to phase B. In case of manual, for example, if a utility
person changes the connection of meter or LCR from one phase to other, the person can write
the field (assuming the person has security access) using software (for example, GE Meter
MateTM software) and any of the communication media such as AMI, Optical, RF, WiMax,
LAN/WAN, GSM, etc. Phase change events can be logged in an event log kept at either or
both the meter and the computing device 108 for future reference.
illustrates an overview block diagram of a non-limiting embodiment of a
meter 106 that can be used to practice embodiments of the present invention. In this
exemplary ment, the utility service is hase electric power. Particularly, in
the electric service is three-phase, four-wire electric power generally comprised of three phase
conductors 202 each carrying electric voltage and current that is lly displaced from one
another by 120 degrees (e.g., phases A, B and C) and a separate neutral wire 214. It is to be
appreciated, r, that the embodiments of the invention can be used with single- and
poly-phase electrical systems such as two-phase, three-phase, four-phase, etc. Further
comprising the embodiment of a meter 106 shown in is a switch 204. The switch 204,
though shown as a three pole, single-throw switch, can be a single switch or any combination
of single or multi-pole switches that provide a means to selectively switch the power feed 104
that provides electrical service from among the plurality of phase conductors 202 (e.g., phases
A, B or C), or to disconnect the load 102 from electrical service. In this manner, the load 102
can be provided with single-phase electrical service from among any of a plurality of phases.
It is also to be appreciated that such a meter 106 can be configured to switch among two,
three, four, five, etc. phases, and is not limited to just a three-phase configuration to e
single-phase service to the load 102. In one aspect, the switch 204 can be controlled by a
l mechanism 212 that actuates the switch 204 (i.e., causes it to switch from one phase to
another or to disconnect the load). The l ism 212 receives a control signal from
the meter’s electronics 206. rmore, in one ,the control mechanism 212 can
provide a feedback signal to the meter’s electronics 206 that indicates the position of the
switch 204. In other words, the control mechanism 212 can inform the meter’s electronics
whether the load 102 is being ed single-phase electric service from phase A, phase B,
phase C, etc., or whether the load 102 is disconnected from electric service.
[0023] Analog voltage and t inputs are also provided to meter electronics 206. In
one aspect, the analog signals are d from the electrical power feed 104 g the load
102 and the one being metered by the meter 106. In another aspect, the analog signals are
derived from a separate electrical . In one aspect, the analog voltage signal can be
provided by one or more potential transformers (PT) 208, if needed, though other means such
as a e divider, capacitive coupling, or the like can be used. If the voltage level of the
source is sufficiently low (e.g., .25 volts AC, or lower), then a PT 208 or other means of
stepping down or transforming the voltage can be omitted. Similarly, in one aspect, the analog
current signal can be ed by one or more current transformers (CT) 210. In one aspect,
the one or more CTs 210 can have a turns ratio of 1:2500. In one aspect, one or more ors
(not shown) can be used to convert the current signal from the CT 210 into a voltage .
In one aspect, the meter electronics 206 can comprise a memory (not shown in
. The memory can be used to store a phase identifier that indicates the phase of the
poly-phase electrical system that the load 102 (and meter 106) are connected. For example, if
the switch 204 is configured such that the electrical power feed 104 serving the load 102 and
the one being metered by the meter 106 is phase A, then the phase identifier stored in the
memory indicates phase A. Similarly, if the switch 204 switches from phase A to phase B,
then the phase identifier stored in the memory is updated to indicate phase B. In one aspect,
the phase identifier is stored automatically when the power feed 104 is ed from one
phase to another (e.g., from phase A to phase B). For example, the control mechanism 212
can provide a signal that indicates the phase that the load 102 is connected to. In one nonlimiting
example, a signal can be sent to the meter 106 over a network 110. In one aspect, the
network 110 is an advanced metering infrastructure (AMI) network. The signal can be a
d to switch phases to which the load is connected from a first phase (e.g., phase A) to
a second phase (e.g., phase B), or to disconnect the load 102. The command is received by a
processor (not shown in in the s electronics 206, which causes the control
mechanism 212 to switch the connection from phase A to phase B. The phase identifier in the
memory is then updated to reflect that the load 102 and meter 106 are now connected to phase
B. In another aspect, the phase identifier can be stored in the meter 106 manually by a user
that has authorization to write to the memory using, for example, infrared, near-field
communications such as oth, Wi-Fi, RF, RFID, and the like, or by connecting a device
such as a computer to the meter 106 using a bus connection. In another aspect, the phase
identifier can be communicated to the memory in the meter’s onics 206 via a network
110 that is operably connected with the s electronics 206. In one aspect, the network
110 is an advanced metering infrastructure (AMI) network. For example, if an entire circuit is
switched, either tically or manually, by a utility such that phase A becomes phase B or
some other similar switching, then a signal can be sent to the meter’s onics 206 over the
network to update the phase identifier such that indicates the meter 206 and the load 102 are
connected to phase B. Once the phase identifier is stored in the memory, it can be transmitted
over the k 110 to, for example, the computing device 108 or it can be read from the
memory by a user with proper authorization and equipment.
In one aspect, the electronics 206 comprise at least a memory, and one or more
processors and provide an interface for receiving a signal from the network 110 and g
the switch 204 to actuate via the control mechanism 212. The memory of the meter
electronics 206 can be used to store a phase identifier as described above. The meter
electronics 206 can comprise a itter that can be used to it at least the phase
identifier over the network 110 to a separate computing device 108. In one aspect, the meter’s
electronics 206 can comprise one or more metering controllers including a Teridian
6533 controller or a Teridian 6521 controller as are available from Maxim Integrated Products,
Inc. (Sunnyvale, California), among others. In one aspect, the one or more processors can
perform metering ons such as determining the number of kilowatt-hours (KWH) of
electricity consumed by the load 102.
In one aspect, the one or more processors of the meter electronics 206 can be
configured to store a first phase identifier for the first phase of the poly-phase electrical system
that the load 102 is connected to in the memory. Then, when requested, the processor can
retrieve the first phase identifier for the first phase of the poly-phase electrical system that the
device is connected to from the memory and transmit at least the first phase identifier to the
computing device 108 over the network 110 operably connected with the smart meter 106
using the network interface. In one aspect, the network 110 is an advanced metering
infrastructure (AMI) k. In one aspect, the switch 204 can be used to switch the load
102 such that the load is connected to at least a second phase of the poly-phase electrical
system such that the metering components meter at least the second phase of the poly-phase
electrical system that the load 102 is connected to for electrical consumption information using
the smart meter 102. The one or more processors are further configured to store a second
phase identifier for the second phase of the poly-phase ical system that the load 102 is
connected to in the memory associated with the smart meter 106. The one or more processors
are also configured to retrieve the second phase identifier for the second phase of the poly-
phase electrical system that the load 102 is connected to from the memory and transmit at least
the second phase identifier to the computing device 108 over the network 110 operably
connected with the smart meter 106 using the k interface. In one aspect, the switch 204
is an automatic switch controlled by the processor and switching the load 102 such that the
load 102 is connected to at least the second phase of the hase electrical system
comprises automatically switching the load 102 from the first phase to the second phase of the
poly-phase electrical system using the switch 204. In one aspect, the one or more sors
are operably connected with the switch 204 such that storing the second phase identifier for
the second phase of the hase electrical system that the load 102 is connected to in the
memory associated with the smart meter 106 comprises automatically storing the second phase
identifier in the memory when the device is switched from the first phase to the second phase
of the poly-phase ical system.
illustrates an embodiment of a meter 106 used to meter a poly-phase
electrical service 104 serving a load 102. In this ment, the poly-phase electrical service
104 is a three-phase service sed of phase conductors 202 for phase A, phase B and
phase C, and a neutral wire 214. In other embodiments, there can be more or fewer electrical
phases and phase tors. In the embodiment shown in switch 204 is used to
provide electrical power to a load control relay (LCR) 302. The LCR can be used to turn on or
off select loads using the meter 106. For example, the LCR can be used to turn on or off
power to a hot water heater, swimming pool pump or heater, air conditioning equipment, etc.
In one aspect, the LCR 302 can have a 40-amp rating. In another , the LCR 302 can
have a two-amp rating. In one aspect, the LCR 302 can receive control signals from the
meter’s electronics 206. In another aspect, the LCR 302 canreceive control signals external
from the meter 106. For e, the LCR 302 can receive a wireless signal causing the LCR
302 to open or close. As shown in the switch 204 can be used to connect the LCR to
one of phases A, B, or C, or to disconnect it altogether. Though shown as a three-pole, singlethrow
switch, the switch 204 can be a single switch or a plurality of switches having any
number of poles and/or throws. Similar as described in reference to the l
mechanism 212 of is used to actuate the switch 204 (i.e., causes it to switch from one
phase to another or to disconnect the LCR 302). The control mechanism 212 receives a
l signal from the meter’s electronics 206. Furthermore, in one aspect, the control
mechanism 212 can provide a feedback signal to the meter’s electronics 206 that indicates the
position of the switch 204. In other words, the control mechanism 212 can inform the meter’s
electronics whether the LCR 302 is being provided -phase electric service from phase A,
phase B, phase C, etc., or whether the LCR 302 is disconnected from electric service.
In one aspect, the meter electronics 206 can comprise a memory (not shown in
. The memory can be used to store a phase identifier that indicates the phase of the
hase ical system that the LCR 302 is connected. For example, if the switch 204 is
configured such that the phase serving the LCR 302 is phase A, then the phase identifier stored
in the memory indicates phase A. Similarly, if the switch 204 switches from phase A to phase
B, then the phase fier stored in the memory tes phase B. In one aspect, the phase
identifier is stored tically when the LCR 302 is switched from one phase to another
(e.g., from phase A to phase B). For example, the control mechanism 212 can provide a signal
that indicates the phase that the LCR 302 is connected to. In one non-limiting example, a
signal can be sent to the meter 106 over a network 110. In one aspect, the network 110 is an
advanced metering infrastructure (AMI) network. The signal can be a command to switch
phases to which the LCR 302 is connected from a first phase (e.g., phase A) to a second phase
(e.g., phase B), or to disconnect the LCR 302. The command is received by a processor (not
shown in in the meter’s electronics 206, which causes the control mechanism 212 to
switch the connection from phase A to phase B. The phase fier in the memory is then
updated to reflect that the LCR 302 is now connected to phase B. In r aspect, the phase
identifier can be stored in the meter 106 manually by a user that has authorization to write to
the memory using, for example, infrared, near-field ications such as BlueTooth, Wi-
Fi, RF, RFID, and the like, or by connecting a device such as a computer to the meter 106
using a bus connection. In another aspect, the phase identifier can be communicated to the
memory in the meter’s electronics 206 via a network 110 that is operably connected with the
meter’s electronics206. For example, if an entire circuit is switched, either automatically or
manually, by a utility such that phase A becomes phase B or some other similar switching,
then a signal can be sent to the meter’s electronics 206 over the network 110to update the
phase identifier such that it indicates the LCR 302 is connected to phase B. Once the phase
identifier is stored in the memory, it can be transmitted over the network 110 to, for e,
the computing device 108 or it can be read from the memory by a user with proper
authorization and equipment.
In one aspect, the electronics 206 comprise at least a memory, and one or more
processors and provide an interface for receiving a signal from the network 110 and causing
the switch 204 to actuate via the control mechanism 212. The memory of the meter
electronics 206 can be used to store a phase identifier as bed above. The meter
electronics 206 can comprise a transmitter that can be used to transmit at least the phase
fier over the network 110 to a te computing device 108. In one , the
network 110 is an advanced metering infrastructure (AMI) network. In one , the meter’s
electronics 206 can comprise one or more metering micro-controllers including a Teridian
6533 controller or a Teridian 6521 controller as are available from Maxim Integrated Products,
Inc. (Sunnyvale, California), among others. In one , the one or more processors can
perform metering functions such as determining the number of kilowatt-hours (KWH) of
electricity consumed by the load 102. Analog voltage and current inputs are also provided to
meter electronics 206. In one aspect, the analog signals are derived from the electrical power
feed 104 serving the load 102 and the one being metered by the meter 106. In another aspect,
the analog signals are derived from a separate ical source. In one aspect, the analog
voltage signal can be ed by one or more potential transformers (PT) 208, if ,
though other means such as a voltage divider, capacitive coupling, or the like can be used. If
the voltage level of the source is sufficiently low (e.g., .25 volts AC, or lower), then a PT 208
or other means of stepping down or transforming the voltage can be omitted. Similarly, in one
aspect, the analog current signal can be provided by one or more current transformers (CT)
210. In one aspect, the one or more CTs 210 can have a turns ratio of 1:2500. In one aspect,
one or more resistors (not shown) can be used to convert the current signal from the CT 210
into a voltage signal.
In one aspect, the one or more sors of the meter electronics 206 can be
ured to store a first phase identifier for the first phase of the poly-phase ical system
that the LCR 302 is connected to in the memory. Then, when requested, the processor can
retrieve the first phase identifier for the first phase of the poly-phase electrical system that the
LCR 302 is connected to from the memory and transmit at least the first phase identifier to the
ing device 108 over the network 110 operably connected with the smart meter 106
using the network interface. In one aspect, the switch 204 can be used to switch the LCR 302
such that the LCR 302 is connected to at least a second phase of the poly-phase electrical
system. The one or more processors are further configured to store a second phase identifier
for the second phase of the poly-phase electrical system that the LCR 302 is connected to in
the memory associated with the smart meter 106. The one or more processors are also
configured to retrieve the second phase identifier for the second phase of the poly-phase
electrical system that the LCR 302 is connected to from the memory and transmit at least the
second phase identifier to the computing device 108 over the network 110 operably connected
with the smart meter 106 using the network interface. In one , the switch 204 is an
automatic switch controlled by the processor and switching the LCR 302 such that the LCR
302 is connected to at least the second phase of the hase electrical system comprises
automatically ing the LCR 302 from the first phase to the second phase of the polyphase
ical system using the switch 204. In one aspect, the one or more processors are
operably connected with the switch 204 such that storing the second phase identifier for the
second phase of the poly-phase electrical system that the LCR 302 is connected to in the
memory associated with the smart meter 106 comprises automatically storing the second phase
identifier in the memory when the device is switched from the first phase to the second phase
of the poly-phase electrical system.
[0031] Referring now to a block diagram of an entity capable of operating as meter
electronics 206 is shown in accordance with one embodiment of the t invention. The
entity capable of operating as a meter electronics 206 includes various means for ming
one or more functions in accordance with embodiments of the present invention, including
those more particularly shown and described herein. It should be understood, however, that
one or more of the entities may e alternative means for performing one or more like
functions, without departing from the spirit and scope of the present invention. As shown, the
entity capable of operating as a meter electronics 206 can generally include means, such as
one or more processors 404 for performing or controlling the various functions of the entity.
As shown in in one ment, meter electronics 206 can comprise metering
components such as meter inputs and filtering components 402. In one aspect, the meter
inputs and filter components 402 can comprise voltage and current inputs, one or more ADCs,
ing components, and the like. Further comprising this embodiment of meter electronics
206 are one or more processors 404 and memory 406.
In one embodiment, the one or more processors 404 are in communication with or
include memory 406, such as volatile and/or non-volatile memory that stores t, data or
the like. For example, the memory 406 may store content transmitted from, and/or received
by, the entity. Also for example, the memory 406 may store software applications,
instructions or the like for the one or more processors 404 to perform steps associated with
operation of the entity in accordance with embodiments of the present invention. In particular,
the one or more processors 404 may be ured to m the processes discussed in more
detail herein for receiving an actuation command for a switch, causing a control associated
with the switch to implement the actuation, receiving a phase identifier from the switch, and
transmitting the phase identifier to a computing device over a network. For example,
according to one embodiment the one or more processors 404 can be configured to update the
phase identifier when a device (e.g., a load or a LCR) is switched from a first phase to a
second phase, as described herein.
[0033] In addition to the memory 406, the one or more processors 404 can also be
ted to at least one interface or other means for ying, transmitting and/or receiving
data, content or the like. In this regard, the interface(s) can e at least one
ication interface 408 or other means for transmitting and/or receiving data, content or
the like, as well as at least one user interface that can include a display 410 and/or a user input
interface 412. In one aspect, the communication interface 408 can be used to transfer a phase
identifier stored in the memory 406 to a remote computing device such as the one described
below over a network 110. In one aspect, the network 110 is an advanced metering
tructure (AMI) network. In one aspect, the communication interface 608 can comprise a
wireless communication interface such as a Wi-Fi transceiver. The user input interface 412, in
turn, can comprise any of a number of devices ng the entity to e data from a user,
such as a keypad, a touch display, a joystick or other input device.
Referring now to the operations are illustrated that may be taken for phase
identification in a smart meter. At step 502, a device is connected to at least a first phase of a
poly-phase electrical system. In one aspect, the device is an electrical load. In one aspect, the
electrical load is a single-phase electrical load. In one aspect, the electrical load is a ase
electrical load. In one aspect, the poly-phase electrical load is a three-phase electrical
load. In one aspect, the device is a load control relay (LCR). At step 504, at least the first
phase of the poly-phase electrical system that the device is connected to is metered for
electrical consumption information using a smart meter. At step 506. a first phase identifier
for the first phase of the poly-phase electrical system that the device is connected to is stored
in a memory associated with the smart meter. At step 508, at least the first phase identifier is
itted over a network operably ted with the smart meter. In one aspect, the
network 110 is an advanced metering infrastructure (AMI) network.
In one aspect, the operations for phase identification in a smart meter as shown in
can further include the steps illustrated in At step 602, the device can be
switched such that the device is connected to at least a second phase of the poly-phase
electrical system. In one aspect, switching the device such that the device is connected to at
least the second phase of the poly-phase electrical system comprises automatically switching
the device from the first phase to the second phase of the poly-phase electrical system using
the smart meter. At step 604, at least the second phase of the hase electrical system that
the device is ted to is metered for electrical consumption information using the smart
meter. At step 606, a second phase identifier for the second phase of the poly-phase electrical
system that the device is connected to is stored in the memory associated with the smart meter.
In one aspect, storing the second phase identifier for the second phase of the poly-phase
electrical system that the device is connected to in the memory associated with the smart meter
comprises automatically storing the second phase identifier when the device is ed from
the first phase to the second phase of the hase electrical system. At step 608, the second
phase identifier is transmitted over the network operably connected with the smart meter.
illustrates the operations that can be taken to switch a device from a first
phase connection to a second phase connection and to update the phase identifier for the
device connection using a computing device such as the one described in reference to
below. At step 702, a command is issued by a computing device and transmitted to a smart
meter. The command is to switch the phase that a device is connected to from a first phase to
a second phase using the smart meter. In one , the device is an electrical load (either
single-phase or poly-phase). In another aspect, the device is a load control relay (LCR), either
single- or hase. At step 704, in response to the switch command, a phase identifier for
the second phase that the device is ted to is received by the computing device from the
smart meter. For example, the phase identifier can be an fier that identifies the phase
that the device is ted to as phase A, phase B, Phase C, or the like. At step 706, the
phase identifier is stored in the memory of the computing device.
The above system has been described above as comprised of units. One skilled in
the art will appreciate that this is a functional ption and that software, hardware, or a
combination of software and hardware can perform the respective functions. A unit, such as a
smart appliance, a smart meter, a smart grid, a utility computing device, a vendor or
manufacturer’s computing device, etc., can be software, hardware, or a ation of
software and hardware. The units can comprise the switching software 806 as illustrated in
and described below. In one exemplary aspect, the units can comprise a computing
device 108 as referenced above and further described below.
[0038] is a block diagram illustrating an ary operating environment for
performing the disclosed methods. This exemplary operating environment is only an example
of an operating environment and is not intended to suggest any limitation as to the scope of
use or functionality of operating environment architecture. Neither should the operating
environment be interpreted as having any dependency or requirement relating to any one or
ation of components illustrated in the exemplary operating environment.
The present methods and systems can be operational with numerous other general
purpose or special purpose computing system environments or configurations. Examples of
well known ing systems, environments, and/or configurations that can be suitable for
use with the systems and methods se, but are not limited to, al computers, server
computers, laptop s, and multiprocessor systems. Additional es se set top
boxes, programmable consumer electronics, network PCs, minicomputers, mainframe
computers, smart meters, smart-grid components, buted computing environments that
comprise any of the above systems or devices, and the like.
The processing of the disclosed methods and systems can be performed by
software components. The disclosed systems and methods can be described in the general
context of computer-executable instructions, such as program modules, being executed by one
or more computers or other devices. Generally, program modules comprise computer code,
routines, programs, objects, components, data structures, etc. that perform particular tasks or
implement particular abstract data types. The disclosed methods can also be practiced in grid-
based and distributed computing environments where tasks are performed by remote
processing devices that are linked through a communications network. In a distributed
computing environment, program modules can be d in both local and remote computer
storage media including memory storage devices.
Further, one d in the art will appreciate that the systems and s
disclosed herein can be ented via a general-purpose computing device in the form of a
computing device 108. The ents of the ing device 108 can comprise, but are
not limited to, one or more processors or processing units 803, a system memory 812, and a
system bus 813 that couples various system components including the processor 803 to the
system memory 812. In the case of multiple processing units 803, the system can utilize
parallel computing. In one aspect, the processor 803 is configured to send an actuation signal
to a smart meter and receive a phase identifier from the smart meter in ance with the
electrical phase that the device at the smart meter is connected.
The system bus 813 ents one or more of several possible types of bus
ures, including a memory bus or memory controller, a peripheral bus, an accelerated
graphics port, and a processor or local bus using any of a variety of bus architectures. By way
of example, such architectures can se an ry Standard Architecture (ISA) bus, a
Micro Channel Architecture (MCA) bus, an Enhanced ISA (EISA) bus, a Video Electronics
Standards Association (VESA) local bus, an Accelerated Graphics Port (AGP) bus, and a
Peripheral ent Interconnects (PCI), a PCI-Express bus, a Personal Computer Memory
Card Industry Association (PCMCIA), Universal Serial Bus (USB) and the like. The bus 813,
and all buses specified in this ption can also be implemented over a wired or wireless
network connection and each of the subsystems, including the processor 803, a mass storage
device 804, an operating system 805, ing software 806, phase identifier data 807, a
network adapter 808, system memory 812, an Input/Output Interface 810, a display adapter
809, a display device 811, and a human machine ace 802, can be contained within one or
more remote computing devices or clients 814a,b,c at physically separate locations, connected
h buses of this form, in effect implementing a fully distributed system or distributed
architecture.
The computing device 108 typically ses a variety of computer readable
media. Exemplary readable media can be any available media that is non-transitory and
ible by the computing device 108 and comprises, for example and not meant to be
limiting, both volatile and non-volatile media, removable and non-removable media. The
system memory 812 comprises computer readable media in the form of volatile memory, such
as random access memory (RAM), and/or non-volatile memory, such as read only memory
(ROM). The system memory 812 typically contains data such as phase fier data 807
and/or program modules such as operating system 805 and switching software 806 that are
immediately accessible to and/or are presently operated on by the processing unit 803.
In another aspect, the computing device 108 can also comprise other nontransitory
, removable/non-removable, volatile/non-volatile computer storage media. By way
of example, illustrates a mass storage device 804 that can provide non-volatile storage
of computer code, computer le ctions, data structures, program s, and other
data for the computing device 108. For example and not meant to be ng, a mass storage
device 804 can be a hard disk, a removable magnetic disk, a removable optical disk, magnetic
tes or other magnetic storage devices, flash memory cards, CD-ROM, digital versatile
disks (DVD) or other optical storage, random access memories (RAM), read only memories
(ROM), electrically erasable programmable read-only memory (EEPROM), and the like.
Optionally, any number of m modules can be stored on the mass storage
device 604, including by way of example, an ing system 805 and switching software
806. Each of the operating system 805 and ing software 806 (or some combination
thereof) can comprise elements of the programming and the switching software 806. Phase
identifier data 807 can also be stored on the mass storage device 804. Phase identifier data
807 can be stored in any of one or more databases known in the art. Examples of such
databases comprise, DB2® (IBM Corporation, Armonk, NY), Microsoft® ,
oft® SQL Server, (Microsoft Corporation, Bellevue, Washington), Oracle®, (Oracle
Corporation, Redwood Shores, California), mySQL, PostgreSQL, and the like. The databases
can be centralized or distributed across multiple systems.
In another aspect, the user can enter commands and information into the computing
device 108 via an input device (not shown). Examples of such input devices comprise, but are
not limited to, a keyboard, pointing device (e.g., a “mouse”), a microphone, a joystick, a
scanner, tactile input devices such as gloves, and other body coverings, and the like These and
other input s can be connected to the processing unit 803 via a human machine interface
802 that is coupled to the system bus 813, but can be ted by other interface and bus
structures, such as a parallel port, game port, an IEEE 1394 Port (also known as a Firewire
port), a serial port, or a universal serial bus (USB).
In yet another aspect, a display device 811 can also be connected to the system bus
813 via an interface, such as a display adapter 809. It is contemplated that the computing
device 108 can have more than one display adapter 809 and the computing device 108 can
have more than one display device 811. For example, a display device can be a monitor, an
LCD d l Display), or a projector. In addition to the display device 811, other
output peripheral devices can comprise components such as speakers (not shown) and a printer
(not shown), which can be connected to the computer 801 via Input/Output Interface 810.
Any step and/or result of the methods can be output in any form to an output device. Such
output can be any form of visual representation, including, but not d to, l,
cal, animation, audio, tactile, and the like.
The computing device 108 can operate in a networked environment using logical
connections to one or more remote computing devices or clients 814a,b,c. By way of
e, a remote computing device 814 can be a personal computer, portable computer, a
server, a router, a network computer, a smart meter, a vendor or manufacture’s computing
device, smart grid components, a peer device or other common network node, and so on.
Logical connections between the computing device 108 and a remote computing device or
client 814a,b,c can be made via a local area network (LAN) and a general wide area network
(WAN). Such network connections can be through a network adapter 608. A network adapter
808 can be implemented in both wired and ss environments. Such king
environments are conventional and place in offices, enterprise-wide computer
ks, intranets, and other networks 815 such as the Internet or an AMI network.
[0049] For purposes of illustration, application programs and other executable program
components such as the operating system 805 are illustrated herein as discrete ,
although it is recognized that such ms and ents reside at various times in
different storage components of the computing device 801, and are executed by the data
processor(s) of the computer. An entation of switching software 806 can be stored on
or transmitted across some form of computer readable media. Any of the disclosed methods
can be performed by computer readable instructions embodied on computer readable media.
Computer readable media can be any available media that can be accessed by a computer. By
way of e and not meant to be limiting, computer readable media can comprise
“computer storage media” and “communications ” “Computer storage media” comprise
volatile and latile, removable and non-removable media implemented in any methods
or technology for storage of information such as computer readable instructions, data
structures, program modules, or other data. Exemplary computer storage media comprises,
but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CDROM
, digital versatile disks (DVD) or other optical storage, magnetic cassettes, magnetic
tape, ic disk storage or other magnetic storage devices, or any other medium which can
be used to store the desired information and which can be accessed by a computer.
The methods and systems can employ Artificial Intelligence techniques such as
e learning and iterative learning. Examples of such techniques include, but are not
limited to, expert systems, case based reasoning, Bayesian networks, behavior based AI,
neural networks, fuzzy systems, evolutionary computation (e.g. genetic algorithms), swarm
intelligence (e.g. ant thms), and hybrid intelligent s (e.g. Expert inference rules
generated through a neural network or production rules from statistical learning).
As described above and as will be iated by one skilled in the art,
embodiments of the present invention may be configured as a system, method, or computer
program product. Accordingly, embodiments of the present invention may be comprised of
various means including entirely of hardware, entirely of re, or any combination of
software and hardware. Furthermore, embodiments of the present invention may take the form
of a er program product on a computer-readable storage medium having computerreadable
program instructions (e.g., computer re) embodied in the storage medium.
Any suitable non-transitory computer-readable storage medium may be ed including hard
disks, CD-ROMs, optical storage s, or magnetic storage devices.
[0052] ments of the present invention have been described above with reference to
block diagrams and flowchart illustrations of methods, apparatuses (i.e., systems) and
computer m products. It will be understood that each block of the block diagrams and
flowchart illustrations, and combinations of blocks in the block diagrams and flowchart
rations, respectively, can be implemented by s means including er program
instructions. These er program instructions may be loaded onto a general purpose
computer, special purpose computer, or other programmable data processing tus, such
as the one or more processors 803 discussed above with reference to or the one or more
sors 404 of to produce a machine, such that the instructions which execute on
the computer or other programmable data processing apparatus create a means for
implementing the functions specified in the flowchart block or blocks.
These computer program instructions may also be stored in a computer-readable
memory that can direct a computer or other programmable data processing apparatus (e.g., one
or more processors 803 of or the one or more processors 404 of ) to function in a
particular manner, such that the instructions stored in the computer-readable memory produce
an article of manufacture including computer-readable instructions for implementing the
function specified in the flowchart block or blocks. The computer program instructions may
also be loaded onto a computer or other programmable data processing apparatus to cause a
series of operational steps to be performed on the computer or other programmable apparatus
to produce a computer-implemented process such that the instructions that execute on the
computer or other programmable apparatus provide steps for enting the functions
specified in the flowchart block or blocks.
[0054] Accordingly, blocks of the block diagrams and flowchart illustrations support
combinations of means for performing the specified functions, combinations of steps for
performing the specified functions and program instruction means for performing the specified
functions. It will also be understood that each block of the block diagrams and flowchart
rations, and combinations of blocks in the block diagrams and flowchart rations, can
be implemented by special e hardware-based computer systems that perform the
specified functions or steps, or combinations of special purpose hardware and computer
instructions.
Unless otherwise expressly stated, it is in no way ed that any method set
forth herein be construed as requiring that its steps be performed in a specific order.
Accordingly, where a method claim does not actually recite an order to be followed by its
steps or it is not otherwise specifically stated in the claims or descriptions that the steps are to
be limited to a specific order, it is no way intended that an order be inferred, in any respect.
This holds for any possible non-express basis for interpretation, including: matters of logic
with respect to arrangement of steps or ional flow; plain g derived from
grammatical organization or punctuation; the number or type of embodiments described in the
specification.
Throughout this application, various publications may be referenced. The
disclosures of these publications in their ties are hereby incorporated by reference into
this application in order to more fully describe the state of the art to which the methods and
systems pertain.
Many modifications and other embodiments of the ions set forth herein will
come to mind to one skilled in the art to which these ments of the invention pertain
having the benefit of the teachings ted in the foregoing descriptions and the associated
drawings. Therefore, it is to be understood that the embodiments of the invention are not to be
limited to the specific embodiments disclosed and that modifications and other embodiments
are intended to be included within the scope of the ed claims. Moreover, although the
foregoing descriptions and the associated drawings describe exemplary embodiments in the
context of certain exemplary combinations of elements and/or functions, it should be
appreciated that different combinations of elements and/or functions may be provided by
alternative embodiments without departing from the scope of the appended . In this
regard, for example, different combinations of elements and/or functions than those explicitly
described above are also contemplated as may be set forth in some of the appended claims.
Although specific terms are employed herein, they are used in a c and descriptive sense
only and not for purposes of limitation.
Where the terms ise”, “comprises”, “comprised” or “comprising” are used
in this specification ding the ) they are to be interpreted as specifying the presence
of the stated features, integers, steps or components, but not precluding the presence of one or
more other features, integers, steps or components, or group thereto.
PARTS LIST
Reference Description
Number
100 utility provider
102 various loads L1-Ln
104 a distribution system
106 meters M1-Mn
108 one or more computing devices
110 communications k
112 a load control relay (LCR)
114 a transformer
202 three phase conductors
204 a switch
206 meter electronics
208 one or more potential transformers (PT)
210 one or more current transformers (CT)
212 l mechanism
214 a separate neutral wire
302 a load control relay (LCR)
402 meter inputs and filtering components
404 one or more processors
406 memory
408 communication interface
410 display
412 user input interface
802 a human machine interface
803 the processing unit
804 a mass storage device
805 an operating system
806 ing software
807 phase identifier data
808 a k adapter
809 a display adapter
810 an Input/Output Interface
811 a display device
812 system memory
813 system bus
814 one or more remote computing devices or clients
815 network
Claims (10)
1. A method, operable in a processor, for phase identification, said method comprising: ting a device to at least a first phase of a poly-phase electrical system; 5 ng at least the first phase of the poly-phase electrical system that the device is connected to for electrical consumption ation; storing a first phase identifier for the first phase of the poly-phase electrical system that the device is connected to in a memory associated with the meter; switching the device such that the device is connected to at least a second phase of the 10 hase electrical system; metering at least the second phase of the poly-phase electrical system that the device is connected to for electrical consumption information using the meter; and storing a second phase identifier for the second phase of the poly-phase electrical system that the device is connected to in the memory associated with the meter.
2. The method of Claim 1, wherein ting the device to at least the first phase of the poly-phase electrical system comprises connecting an electrical load to the first phase of the poly-phase electrical system, wherein the electrical load is a single-phase electrical load. 20
3. The method of Claims 1 or 2, wherein connecting the device to the first phase of the hase electrical system comprises ting a load control relay to the first phase of the poly-phase electrical system, wherein the poly-phase electrical system provides electrical service to a poly-phase electrical load. 25
4. The method of any one of Claims 1 through 3, further comprising: transmitting at least one of the stored first phase identifier and the stored second phase identifier over the network ly connected with the meter.
5. The method of any one of Claims 1 through to 4, wherein switching the device such 30 that the device is connected to at least the second phase of the hase electrical system comprises automatically switching the device from the first phase to the second phase of the poly-phase electrical system using the meter, and wherein storing the second phase identifier for the second phase of the poly-phase electrical system that the device is connected to in the memory associated with the meter comprises automatically storing the second phase identifier when the device is switched from the first phase to the second phase of the poly-phase electrical system.
6. A meter sed of: one or more switches, wherein the one or more switches are used to connect a device to at least a first phase of a poly-phase electrical system; metering ents, wherein the metering components are used to meter at least the 10 first phase of the poly-phase electrical system that the device is connected to for electrical consumption information; a memory; at least one network interface; and a processor, n the processor is operably connected with the one or more 15 switches, the metering components, the memory and the at least one k interface, wherein the processor is configured to: store a first phase identifier for the first phase of the poly-phase electrical system that the device is connected to in the memory; and control the one or more switches to switch the device such that the device is connected 20 to at least a second phase of the hase electrical system such that the metering components meter at least the second phase of the poly-phase electrical ; and store a second phase identifier for the second phase of the poly-phase electrical system that the device is connected to in the memory associated with the meter. 25
7. The meter of Claim 6, wherein the processor is further configured to: retrieve at least one of the stored first phase fier and the stored second phase identifier and transmit the retrieved phase identifier over a network.
8. A system for phase fication for a meter comprised of: 30 a computing device; a meter, comprised of: one or more switches, used to connect a device to at least a first phase of a poly-phase electrical system; metering components used to meter at least the first phase of the poly-phase electrical system that the device is connected to for electrical consumption information; a memory; 5 at least one network interface that operably connects the meter with a network; a processor operably connected with the one or more switches, the metering components, the memory and the at least one network interface, wherein the processor is configured to: store a first phase identifier for the first phase of the poly-phase 10 electrical system that the device is connected to in the memory; control the one or more switches to switch the device such that the device is connected to at least a second phase of the poly-phase electrical system such that the ng ents meter at least the second phase of the poly-phase electrical system; and 15 store a second phase identifier for the second phase of the poly-phase ical system.
9. The system of Claim 8, wherein the device comprises an electrical load and the one or more es are used to connect the electrical load to at least the first phase of the poly- 20 phase electrical system and the electrical load is a single-phase electrical load, or the device is a load control relay and the one or more switches are used to connect the load control relay to the first phase of the poly-phase electrical system and the poly-phase electrical system provides electrical service to a hase electrical load. 25
10. The system of any of Claims 8 or 9, ve at least one of the stored first phase identifier and the stored second phase identifier for the second phase of the poly-phase electrical system and transmit at least the retrieved phase identifier to the computing device.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/074,399 US8587290B2 (en) | 2011-03-29 | 2011-03-29 | Method, system and device of phase identification using a smart meter |
US13/074,399 | 2011-03-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
NZ599079A NZ599079A (en) | 2013-10-25 |
NZ599079B true NZ599079B (en) | 2014-01-28 |
Family
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