WO2023023775A1 - Onduleur pour système de capture et de stockage d'énergie - Google Patents

Onduleur pour système de capture et de stockage d'énergie Download PDF

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Publication number
WO2023023775A1
WO2023023775A1 PCT/AU2022/051002 AU2022051002W WO2023023775A1 WO 2023023775 A1 WO2023023775 A1 WO 2023023775A1 AU 2022051002 W AU2022051002 W AU 2022051002W WO 2023023775 A1 WO2023023775 A1 WO 2023023775A1
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WO
WIPO (PCT)
Prior art keywords
inverter
output
grid
variable
power
Prior art date
Application number
PCT/AU2022/051002
Other languages
English (en)
Inventor
Barbara Louise Elliston
Murray James Neilson
Original Assignee
Easy PV (Aust) Pty Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from AU2021221722A external-priority patent/AU2021221722A1/en
Application filed by Easy PV (Aust) Pty Limited filed Critical Easy PV (Aust) Pty Limited
Publication of WO2023023775A1 publication Critical patent/WO2023023775A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/10—Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/007—Plural converter units in cascade
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0083—Converters characterised by their input or output configuration
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/32—Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/40—Thermal components
    • H02S40/44—Means to utilise heat energy, e.g. hybrid systems producing warm water and electricity at the same time
    • 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
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

Definitions

  • the present disclosure relates to an inverter for an energy capture and storage system, more particularly a system utilising solar energy.
  • Solar energy is an important source of renewable, clean energy.
  • solar energy systems are being used to harness the sun's energy for everyday needs.
  • the focus of these systems has traditionally been for either direct use (e.g. heating domestic hot water), or storage in the form of electrical charge within battery systems.
  • direct use e.g. heating domestic hot water
  • storage in the form of electrical charge within battery systems.
  • inefficiencies exist within such use cases due to available technology.
  • a hot water cylinder connected to a solar photovoltaic (“PV”) system traditionally draws a power at a fixed rate from both the solar PV system and the mains electricity grid (“the grid”) until it is up to temperature, regardless of the power generated by the solar PV system at the time.
  • the grid the mains electricity grid
  • a 3 kW rated cylinder will need to draw a total of 3 kW of power to heat the water. If the solar PV system is not producing 3 kW, the balance of power required will be drawn from the grid. Because the times of greatest demand on hot water use typically do not align with sunlight intensity, over a 24 hour period there may be a disproportionate amount of power generated by the solar PV system versus that utilized for heating water.
  • an inverter for use in an energy capture and storage system, the inverter comprising: a DC power input configured to receive DC input power from at least one on-site power source; a common internal DC-bus; at least one variable output inverter stage coupled to the internal DC-bus, and having a variable AC output configured to supply an AC output power, at a time-averaged voltage that is variable between minimum and maximum levels; at least one grid-tie inverter stage coupled to the internal DC-bus, and having a grid AC output configured to supply an AC output power to an AC grid; one or more controllers configured to individually control the at least one variable output inverter stage and the at least one grid-tie inverter stage.
  • an energy capture and storage system comprising: at least one on-site power source; and an inverter substantially as herein described, wherein the DC power input is electrically coupled to the on-site power source.
  • the on-site power source may include one or more photovoltaic modules. However, it is envisaged that the on-site power source may generate power using alternative energy sources, for example one or more of: wind, hydro, geothermal, or biomass. In examples, the on-site power source may include one or more energy storage devices - for example, batteries.
  • the energy capture and storage system includes one or more heating elements electrically coupled directly or indirectly to the variable AC output of the inverter.
  • the one or more heating elements are used to heat a working medium.
  • the working medium may be stored in a vessel.
  • the one or more heating elements are those of a hot water cylinder - i.e. the working medium may be a liquid such as water.
  • the working medium may be another material and/or structure known for use in thermal energy storage (TES).
  • TES thermal energy storage
  • the working medium may include a Miscibility Gap Alloy (MGA).
  • the common internal DC-bus provides an independently, or separately, regulated common energy bus for behind the meter (BTM) energy transactions.
  • BTM meter
  • DER Distributed Energy Resources
  • the common internal DC-bus enables separate definition of grid connection limitations, independent of the DER capacities. This is also envisaged as potentially reducing the fault level contribution to the grid, unlike traditional export limiting methods.
  • a time-averaged voltage that is variable between minimum and maximum levels refers to a measure of the overall voltage level of the AC signal, rather than the inherent regular wave-like fluctuations of AC.
  • the variable AC voltage level may be measured by a time-averaged value such as root mean square or any other suitable measure.
  • the amplitude of the AC voltage may also be varied, which will consequently vary the time- averaged value of the voltage.
  • the outputted AC voltage level is variable to adjust the power outputted by the inverter to the heating elements, so that it substantially matches the maximum amount of power available from the photovoltaic modules.
  • varying the outputted AC voltage level from the inverter allows the maximum available power to be applied to heating elements with fixed resistances. It should be appreciated in embodiments in which power available from the on-site power source (e.g. photovoltaic modules) is rationed or prioritised, it may not be the maximum power available but rather the amount directed to the that output by the control system.
  • the minimum level of AC root mean square voltage outputted by the inverter is 0 V.
  • the maximum level of AC root mean square voltage outputted by the inverter is the nominal mains voltage, for example, 230 Vac. More preferably, where the heating elements have a higher voltage rating than the nominal mains voltage, the maximum level of AC root mean square voltage outputted by the inverter is able to match the higher voltage rating of the heating elements
  • variable AC output may be provided according to one or more modes in which one or more other characteristics of the output may be varied.
  • the frequency and/or waveshape of the output may be varied according to a desired use case, such as to suit a specific appliance or application (e.g. allowing for a boost power mode).
  • the inverter may include more than one variable output inverter stage.
  • the inverter may include a first variable output inverter stage having an output dedicated to supplying power to a heating element, and a second variable output inverter stage having an output for an alternative purpose.
  • Reference to an AC grid should be understood to mean a mains power grid operated by a power utility company, or equivalent external network or microgrid.
  • one or more of the inverter stages may provide a single-phase output. In examples, one or more of the inverter stages may provide a polyphase output.
  • At least two of the inverter stages may be the same phase.
  • at least two of the inverter stages may be phase separated - i.e. operate in a different phase.
  • one inverter stage may have a 180 degree mode of conduction, and another inverter stage may have a 120 degree mode of conduction.
  • the phase separation need not be dictated by constraints of the mains grid.
  • the at least one controller is configured to select which phase to connect, and determine the phase angle.
  • Traditional multiphase electricity networks have fixed phase angles between phases, resulting in the limitation on how many phases are available to connections to the networks.
  • the inverter of the present technology is not limited by these constraints, being able to choose multiple phases or poles depending on the number of stages configured within the inverter.
  • the phase angle between these multiple phases or poles is able to be set by the controller, which is not viable in traditional power system design. This allows a premises to have distribution within the premises which not only has phases different to that on the networks, but potentially a different number of phases also.
  • the at least one grid-tie inverter stage may provide a split phase output configured to connect to a split-phase grid.
  • the split phase output may be configured to connect to a Single Wire Earth Return (SWER) grid.
  • SWER Single Wire Earth Return
  • the inverter may include at least one separated internal site AC inverter stage coupled to the internal DC-bus output, and having an internal site AC output configured to supply an AC output power to an internal site AC grid.
  • Reference to an internal site AC grid should be understood to mean a user-side grid distributed independently from that connected to the mains electricity grid, with designated loads determined by the user.
  • Reference to a "separated" stage should be understood to mean that the stage is able to be controlled separately or individually.
  • Reference to the one or more controllers being configured to individually control the at least one variable output inverter stage and the at least one grid-tie inverter stage should be understood to mean that one or more characteristics of each output may be controlled independently of the other(s). For completeness, this is not intended to exclude embodiments in which control of one stage is influenced by one or more characteristics of the other. For example, two or more stages may be phase-locked - whether that be by a dynamically varying gain factor or an essentially fixed gain factor. It should be appreciated that the one or more controllers may be embodied in a single device controlling multiple stages, dedicated devices for each stage, or multiple devices functioning in combination to control each stage.
  • FIG. 1 is a block schematic diagram of an exemplary architecture for an inverter for use in an energy capture and storage system according to one aspect of the present technology.
  • FIG. 2 is a block schematic diagram of another exemplary architecture for an inverter for use in an energy capture and storage system according to one aspect of the present technology.
  • FIG. 3 is a block schematic diagram of a further exemplary architecture for an inverter in use within an energy capture and storage system according to one aspect of the present technology.
  • FIG. 1 illustrates an exemplary architecture for an inverter 100 for use in an energy capture and storage system according to one aspect of the present technology.
  • the inverter 100 includes a first DC power input 102a configured to receive DC input power from at least one photovoltaic (“PV") modules using incident solar radiation to generate electrical energy in the form of direct current (DC).
  • PV modules herein is intended to refer to any component or group of components able to produce electrical energy from solar energy.
  • Many conventional PV modules have a cellular structure and are therefore known as PV cells.
  • PV modules may be arranged in an array and have a panel-like form. However, the invention is not limited to any particular type, structure or arrangement of photovoltaic devices.
  • a second DC power input 102b is also provided - for example, for connection to DC batteries.
  • the inverter includes an input stage 104 including voltage and current sensors 106, input filters 108, and conditioning devices 110 (including high frequency switching and micro storage devices), controlled by one or more controllers 112.
  • the input stage 104 connects to a common internal DC-bus 114.
  • the nominal DC-bus voltage may be selected based on the DC power input and/or intended output from the inverter 100, but in an example the nominal DC-bus voltage may be in the order of 380 VDC.
  • a plurality of inverter output stages 116 are connected to the common internal DC-bus 114, and controlled by the controller(s) 112. Each output stage 116 includes high frequency output filtering 118, and waveform sensing providing feedback to the controller(s) 112.
  • a first inverter output 122a provides a variable AC output configured to supply an AC output power, at a time-averaged voltage that is variable between minimum and maximum levels.
  • the first inverter output 122a may be configured to supply power to one or more heating elements of a hot water cylinder, as described in Australian Innovation Patent No. 2013100349, the entire contents of which are herein incorporated by reference.
  • a second inverter output 122b is configured to supply an AC output power to an AC grid - i.e. a traditional 230 VAC output.
  • the first inverter output 122a and the second inverter output 122b may be the same phase.
  • the output stage 116 of the first inverter output 122a may be phase locked to that of the second inverter output 122b by a dynamically varying gain factor.
  • the "grid rating" i.e. the utility recognised connection capacity and fault level contribution
  • the internal DC-bus 114 is able to accommodate resources, for example, solar PV arrays, in excess of the limits placed on grid connected inverters.
  • the limits placed on the grid connected inverters are a result of network considerations and constraints. Where premises require more electricity than this limit, the premises is forced to import electricity.
  • the ability to have larger arrays beyond what can be seen by grid tie inverters allows premises to implement more solar PV power, better aligned to its needs rather than the networks considerations.
  • the inverter architecture of FIG. 1 demonstrates that in the present technology the switching of the power from the DC power source between outputs is carried out internally within the inverter 100.
  • the high input voltages for example from a PV module, are controlled by a single piece of equipment rated for these voltages, avoiding the need for multiple external DC arc-quenching switches and control systems. This allows the power generated by the PV modules to be utilised wherever the controller selects, ensuring fuller utilisation of the solar energy captured towards multiple uses.
  • FIG. 2 illustrates another exemplary architecture for an inverter 100 for use in an energy capture and storage system according to one aspect of the present technology.
  • the architecture is similar to that described above with reference to FIG. 1, but having a third inverter output stage 116 providing a third inverter output 122c.
  • the third inverter output 122c may be configured to provide another variable output voltage power source, or a fixed nominal voltage (e.g. a grid-separated internal consumer supply).
  • all three outputs 122 are the same phase, with the output stage 116 of the third inverter output 122c phase locked to that of the second inverter output 122b - e.g. by a dynamically varying gain factor for a variable output voltage, or an essentially fixed gain for a grid- separated output voltage.
  • the grid rating of the inverter is effectively defined solely by the second inverter output 122b.
  • the inverter architecture of FIG. 2 demonstrates the ability of the multiple outputs of the present technology to meet requirements within the premises to address a fixed resistance load in addition to grid connected loads, and loads which require reliability beyond that provided by the grid. Such fixed resistance loads would otherwise typically place loads on inverters requiring grid support to maintain.
  • FIG. 3 illustrates an energy capture and storage system 200 including an inverter 100 utilising a similar architecture to that described above with reference to FIG. 1 and FIG. 2.
  • the energy capture and storage system 200 includes PV modules 202a and optionally batteries 202b providing DC input to the inverter 100.
  • the first inverter output stage 116a provides a variable AC output to a heating element of a hot water system 204 of the energy capture and storage system 200, independent from the grid.
  • the second inverter output stage 116b and third inverter output stage 116c are configured to function as a grid connect to a split-phase grid, more particularly transformer 206 of a Single Wire Earth Return (SWER) substation of a SWER grid.
  • the inverter output stages 116a-c can be phase separated by up to 180 degrees, with the first output stage 116a operating phase independently of the second inverter output stage 116b and third output stage 116c, with a dynamically varying voltage gain factor.
  • DC battery and grid connected ports of the inverter architecture of the present technology are bidirectional. Bidirectionality is natively possible with the AC ports as a consequence of the "four quadrant" architecture utilised, with active and reactive power flow direction being fully controllable. Bidirectionality on DC ports configured to be connected to batteries enables charging of those batteries.
  • the inverter architecture of the present technology allows for load imbalance between "phases", unlike known 3-phase inverters which place a limit on the amount of imbalance allowed between phases.
  • a solar array and a 3-phase lOkW inverter are purchased and installed in a home with 3-phase power, with that home having an electric vehicle (EV) configured to only charge from one phase (i.e. irrespective of whether a charge point is a 3-phase charge point or single-phase charge point) - for example the Hyundai Kona ElectricTM, or Nissan LeafTM.
  • EV electric vehicle
  • the inherent 'grid quality' of the output achieved using the present technology is typically low harmonic AC (e.g. 50 Hz sinusoidal) and therefore suitable for long cable runs with standard AC installation cabling, not needing to be screened and being compatible with any resistive load.
  • loads may include resistive under floor heating (UFH), as well as storage tanks, or other systems.
  • UHF resistive under floor heating
  • hot water diverter technologies with variable outputs typically produce high harmonic content (similar to many Variable Speed Drives), only being suitable for storage hot water tank systems and needing to be installed adjacent to the system (or requiring screened cables if any distance away), which precludes other applications such as electric UFH systems.
  • firmware and/or software also known as a computer program
  • the techniques of the present disclosure may be implemented as instructions (for example, procedures, functions, and so on) that perform the functions described. It should be appreciated that the present disclosure is not described with reference to any particular programming languages, and that a variety of programming languages could be used to implement the present invention.
  • the firmware and/or software codes may be stored in a memory, or embodied in any other processor readable medium, and executed by a processor or processors.
  • the memory may be implemented within the processor or external to the processor.
  • a general purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine.
  • a processor may also be implemented as a combination of computing devices, for example, a combination of a digital signal processor (DSP) and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
  • DSP digital signal processor
  • the processors may function in conjunction with servers, whether cloud based or dedicated, and network connections as known in the art.
  • steps of a method, process, or algorithm described in connection with the present disclosure may be embodied directly in hardware, in a software module executed by one or more processors, or in a combination of the two.
  • the various steps or acts in a method or process may be performed in the order shown, or may be performed in another order. Additionally, one or more process or method steps may be omitted or one or more process or method steps may be added to the methods and processes. An additional step, block, or action may be added in the beginning, end, or intervening existing elements of the methods and processes.
  • each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which includes at least one executable instruction for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

Un onduleur à utiliser dans un système de capture et de stockage d'énergie comprend une entrée de CC conçue pour recevoir une puissance d'entrée en CC provenant d'au moins une source d'alimentation sur site. L'onduleur comprend en outre un bus CC interne commun. Au moins un étage onduleur à sortie variable est accouplé au bus CC interne, et présente une sortie en CA variable conçue pour fournir une puissance de sortie en CA, à une tension moyenne dans le temps qui est variable entre des niveaux minimum et maximum. Au moins un étage onduleur connecté sur le réseau est accouplé au bus CC interne et possède une sortie en CA de réseau conçue pour fournir une puissance de sortie en CA à un réseau en CA. L'onduleur comprend en outre un ou plusieurs dispositifs de commande conçus pour commander individuellement ledit étage onduleur à sortie variable et ledit étage onduleur connecté sur le réseau.
PCT/AU2022/051002 2021-08-25 2022-08-25 Onduleur pour système de capture et de stockage d'énergie WO2023023775A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AU2021221722 2021-08-25
AU2021221722A AU2021221722A1 (en) 2021-08-25 2021-08-25 An Inverter for an Energy Capture and Storage System
NZ779431 2021-08-25
NZ77943121 2021-08-25

Publications (1)

Publication Number Publication Date
WO2023023775A1 true WO2023023775A1 (fr) 2023-03-02

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120281444A1 (en) * 2011-05-08 2012-11-08 Paul Wilkinson Dent Solar energy conversion and utilization system
US20150365003A1 (en) * 2014-06-12 2015-12-17 Laurence P. Sadwick Power Conversion System
US20170047740A1 (en) * 2015-08-14 2017-02-16 Solarcity Corporation Multiple inverter power control systems in an energy generation system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120281444A1 (en) * 2011-05-08 2012-11-08 Paul Wilkinson Dent Solar energy conversion and utilization system
US20150365003A1 (en) * 2014-06-12 2015-12-17 Laurence P. Sadwick Power Conversion System
US20170047740A1 (en) * 2015-08-14 2017-02-16 Solarcity Corporation Multiple inverter power control systems in an energy generation system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Smart Hybrid Solar Inverter System", INSTALLATION AND OPERATORS MANUAL, REDBACK TECHNOLOGIES, INDOOROOPILLY, AUSTRALIA, Indooroopilly, Australia, pages 1 - 58, XP009544040, Retrieved from the Internet <URL:https://growenergy.com.au/assets/media/Redback-Smart-HYBRID-Battery-User-Manual.pdf> [retrieved on 20221114] *

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