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WO2018039227A1 - Système de panneau d'agrégation électrique - Google Patents

Système de panneau d'agrégation électrique Download PDF

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Publication number
WO2018039227A1
WO2018039227A1 PCT/US2017/048008 US2017048008W WO2018039227A1 WO 2018039227 A1 WO2018039227 A1 WO 2018039227A1 US 2017048008 W US2017048008 W US 2017048008W WO 2018039227 A1 WO2018039227 A1 WO 2018039227A1
Authority
WO
WIPO (PCT)
Prior art keywords
ats
inverter
battery
electrical path
connection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2017/048008
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English (en)
Inventor
Mark Hopperton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2018039227A1 publication Critical patent/WO2018039227A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/018—Application transfer; between utility and emergency power supply
    • 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
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies

Definitions

  • the embodiments described herein are generally directed to an electrical aggregation panel system, and, more particularly, to a residential or commercial aggregation panel system comprising an automatic transfer switch (ATS) and aggregation panel.
  • ATS automatic transfer switch
  • Grid-Tied Solar The utility grid source and solar power generation system are tied to the same utility panel. The amount of power that can be pulled from the grid is reduced by the amount of solar power generation capacity, in order to prevent overloading the panel. The residence pulls its power off this single panel for all of its uses.
  • [8] (2) Grid-Independent Solar, Battery, and Generator An inverter system is installed to support the maximum residential energy use. Solar power generation and battery systems are tied to the inverter. The inverter and solar power generation system are tied to the same main utility panel, and the residence pulls its power off the main utility panel for all of its usage.
  • the utility grid source is tied to the residence's main utility panel, and the residence pulls the non-critical power load from this main utility panel.
  • An inverter system is installed to support the maximum residential critical energy use and is fed from the main utility panel. Power from the utility grid source is reduced by the capacity of the inverter system in order to prevent overloading the main utility panel.
  • the battery system is tied to the inverter.
  • the inverter and the solar power generation system are tied to the critical load panel, and the residence pulls its critical power from the critical load panel. The solar power generation system's capability cannot be larger than the inverter system.
  • an aggregation panel system comprises: an automatic transfer switch (ATS) that comprises a first input connection configured to simultaneously provide an electrical path between the ATS and a battery inverter, an electrical path between the ATS and a power grid, and an electrical path between the power grid and the battery inverter, a second input connection configured to provide an electrical path between the ATS and the battery inverter, and an output connection, wherein the ATS is configured to switch between providing a first electrical path between the first input connection and the output connection and providing a second electrical path between the second input connection and the output connection; and an aggregation panel electrically connected to the output connection of the ATS and electrically connectable to at least one load, wherein the aggregation panel has a power rating equal to or greater than a sum of the power rating of the ATS and a power rating of the load.
  • ATS automatic transfer switch
  • FIG. 1 illustrates an ATS, according to an embodiment
  • FIG. 2 illustrates an aggregation panel, according to an embodiment
  • FIG. 3 illustrates a battery inverter, according to an embodiment
  • FIG. 4 illustrates an aggregation panel system, according to an embodiment.
  • a residential owner In current installation options, a residential owner must decide the solar power generation and battery system capacities at the time of installation. If no battery system is installed or the residential owner eventually requires more than the capacity of the installed battery system, the installation costs for adding capacity at a later time can be cost- prohibitive.
  • the amount of power that can be utilized from the utility grid is reduced by the capacity of the solar power generation system. For example, if the main utility panel is rated at 200 amps and the solar power generation system has a capacity of 80 amps, the utility grid capacity is reduced by the 80 amps of capacity provided by the solar power generation system, such that only 120 amps is available from the utility grid.
  • the disclosed electrical aggregation panel system provides one or more of the following advantages over existing technologies:
  • the power rating of the inverter is sized to match the wattage requirement of the load.
  • the disclosed electrical aggregation panel system enables the inverter to match the wattage rating of the battery system, which may be an order of magnitude less than the wattage requirement of the load.
  • the disclosed electrical aggregation panel system ties together two Automatic Transfer Switches (ATSs).
  • ATSs Automatic Transfer Switches
  • standard battery inverter systems have ATS capabilities integrated into the unit acting as a first ATS, sized to match the power rating of the battery system.
  • the disclosed electrical aggregation panel system ties this first ATS to a second ATS 110, which is sized to match the power rating of the utility grid source. This enables the user to incrementally add battery systems, using an ATS, up to the power rating of the utility grid source.
  • FIGS. 1 and 2 illustrate an electrical aggregation panel system, according to an embodiment.
  • the electrical aggregation panel system comprises an ATS 110 (e.g., ZTX series transfer switch from General Electric, ATC 300+ series transfer switch from Eaton, etc.), the amperage of the utility grid 120 (e.g., an input from the utility grid), and a battery inverter 130.
  • the receptacle from battery inverter 130 is tied to both sides of ATS 110.
  • ATS 110 connects an existing battery inverter 130, existing utility grid source 120, and an existing load 210.
  • Inverter grid-in connection 150 is tied together with utility grid connection 160 to one side of ATS 110.
  • Inverter AC out connection 170 is tied to the other side of ATS 110.
  • ATS 110 is configured to switch between providing a first electrical path between a first input connection (i.e. 150/160) and the output connection to aggregation panel 180 and providing a second electrical path between a second input connection (i.e., 170) and the output connection to aggregation panel 180.
  • ATS capabilities are integrated into standard battery inverters
  • conventional systems tie the utility grid to the grid outlet of a battery inverter.
  • the battery inverter is then tied to an existing load. This requires either that the battery inverter be sized to the existing load or the installation of a smaller battery inverter to a smaller subset of the existing load.
  • the choice of the battery-inverter power rating must be made at the time of installation. Future changes are costly.
  • the battery-inverter capacity can be added incrementally at low cost at any time as existing load 210 changes (e.g., grows), and no critical load panel is required.
  • Aggregation panel 180 has a power capacity that is the sum of the utility grid source 120 and the load 210, and aggregates battery 190, solar power generation system 220, utility grid 120, and load 210.
  • Battery 190 (which may comprise one or a plurality of batteries) and utility grid 120 are bidirectional, whereas solar power generation system 220 only provides inbound power to aggregation panel 180, and load 210 only receives outbound power from aggregation panel 180.
  • Solar power generation system 220 can be an inverter connected to a solar panel or a micro inverter connected to a solar panel.
  • FIG. 3 illustrates battery inverter 130, according to an embodiment.
  • both inverter grid-in connection 150 (follower) and inverter AC out connection 170 (leader) are combined in a single five-conductor cable 310 that terminates in a five-pole plug 320 on one end and a standard existing battery inverter 130 on the other end.
  • Five-conductor cable 310 may be of variable length, as specified by National Fire Protection Association (NFPA) 70® (the National Electrical Code®) or similar standard.
  • NFPA National Fire Protection Association
  • FIG. 4 illustrates a full electrical aggregation panel system, according to an embodiment.
  • the illustrated full electrical aggregation panel system incorporates design elements from FIGS. 1-3.
  • ATS 110 and aggregation panel 180 are combined into a single enclosure.
  • ATS 110 and aggregation panel 180 are each provided with one or more five-pole receptacles 410.
  • Each five-pole receptacle 410 matches and is configured to receive or otherwise electrically connect to a five-pole plug 320 from an inverter 130.
  • the full electrical aggregation panel system allows for the battery-inverter power rating to be smaller than that of the power rating of the maximum load 210.
  • Incremental additions of battery-inverter power capacity can be added (e.g., by adding new battery inverter(s) 130 or replacing existing battery inverter(s) 130) as the power rating of load 210 increases. This is in contrast to conventional systems, in which the size of the battery inverter and the load to be powered by the battery inverter must be decided at the time of the initial installation.

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Inverter Devices (AREA)

Abstract

L'invention concerne un système de panneau d'agrégation électrique. Le système peut comprendre un ATS comportant une première connexion d'entrée qui fournit simultanément un trajet entre l'ATS et un onduleur de batterie, un trajet électrique entre l'ATS et un réseau électrique, et un trajet électrique entre le réseau électrique et l'onduleur de batterie, et une seconde connexion d'entrée conçue pour fournir un trajet entre l'ATS et l'onduleur de batterie, et une connexion de sortie. L'ATS peut commuter entre la fourniture d'un trajet entre la première connexion d'entrée et la connexion de sortie et d'un trajet entre la seconde connexion d'entrée et la connexion de sortie. Le système peut en outre comprendre un panneau d'agrégation connecté à la connexion de sortie de l'ATS et pouvant être connecté à au moins une charge, le panneau d'agrégation ayant une puissance nominale égale ou supérieure à une somme de la puissance nominale de l'ATS et d'une puissance nominale de la charge.
PCT/US2017/048008 2016-08-24 2017-08-22 Système de panneau d'agrégation électrique Ceased WO2018039227A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201662379157P 2016-08-24 2016-08-24
US62/379,157 2016-08-24

Publications (1)

Publication Number Publication Date
WO2018039227A1 true WO2018039227A1 (fr) 2018-03-01

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PCT/US2017/048008 Ceased WO2018039227A1 (fr) 2016-08-24 2017-08-22 Système de panneau d'agrégation électrique

Country Status (1)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050006958A1 (en) * 2003-07-11 2005-01-13 Dubovsky Stephen M. Grid-connected power systems having back-up power sources and methods of providing back-up power in grid-connected power systems
US20110204720A1 (en) * 2007-11-30 2011-08-25 Johnson Controls Technology Company Efficient usage, storage, and sharing of energy in buildings, vehicles, and equipment
US20130082529A1 (en) * 2011-09-29 2013-04-04 James Frederick Wolter Power generation system with integrated renewable energy generation, energy storage, and power control
US20130212410A1 (en) * 2012-02-10 2013-08-15 University Of Florida Research Foundation, Incorporated Renewable energy control systems and methods
US20140265585A1 (en) * 2013-03-15 2014-09-18 Technology Research Corporation Interface for renewable energy system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050006958A1 (en) * 2003-07-11 2005-01-13 Dubovsky Stephen M. Grid-connected power systems having back-up power sources and methods of providing back-up power in grid-connected power systems
US20110204720A1 (en) * 2007-11-30 2011-08-25 Johnson Controls Technology Company Efficient usage, storage, and sharing of energy in buildings, vehicles, and equipment
US20130082529A1 (en) * 2011-09-29 2013-04-04 James Frederick Wolter Power generation system with integrated renewable energy generation, energy storage, and power control
US20130212410A1 (en) * 2012-02-10 2013-08-15 University Of Florida Research Foundation, Incorporated Renewable energy control systems and methods
US20140265585A1 (en) * 2013-03-15 2014-09-18 Technology Research Corporation Interface for renewable energy system

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