WO2014192015A2 - Procédé et système destinés à un inverseur photovoltaïque modulaire à accès multiples - Google Patents

Procédé et système destinés à un inverseur photovoltaïque modulaire à accès multiples Download PDF

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Publication number
WO2014192015A2
WO2014192015A2 PCT/IN2014/000298 IN2014000298W WO2014192015A2 WO 2014192015 A2 WO2014192015 A2 WO 2014192015A2 IN 2014000298 W IN2014000298 W IN 2014000298W WO 2014192015 A2 WO2014192015 A2 WO 2014192015A2
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WO
WIPO (PCT)
Prior art keywords
inverter
grid
mode
multiple modular
module
Prior art date
Application number
PCT/IN2014/000298
Other languages
English (en)
Other versions
WO2014192015A3 (fr
Inventor
Madhuwanti Joshi
Original Assignee
Indian Institute Of Technology Bombay
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Filing date
Publication date
Application filed by Indian Institute Of Technology Bombay filed Critical Indian Institute Of Technology Bombay
Publication of WO2014192015A2 publication Critical patent/WO2014192015A2/fr
Publication of WO2014192015A3 publication Critical patent/WO2014192015A3/fr

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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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • 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
    • G01D2204/00—Indexing scheme relating to details of tariff-metering apparatus
    • G01D2204/30—Remote utility meter reading systems specially adapted for metering the generated energy or power
    • G01D2204/35—Monitoring the performance of renewable electricity generating systems, e.g. of solar panels
    • 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
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • 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
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • H02J2300/26—The renewable source being solar energy of photovoltaic origin involving maximum power point tracking control for photovoltaic sources
    • 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
    • H02J3/24—Arrangements for preventing or reducing oscillations of power in 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
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/10—Photovoltaic [PV]
    • 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
    • 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
    • Y02E40/70—Smart grids as climate change mitigation technology in the energy generation 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
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Definitions

  • Present invention describes a modular solar power system which offers an option for switching between grid connected mode and off the grid mode along with storage.
  • a typical solar plant consists of the solar panels and an inverter to convert DC voltage generated from the solar panel into an AC voltage.
  • This AC voltage is either compatible with the grid voltage in grid connected systems or it is just designed to be suitable for local loads in an off-grid system.
  • a solar system design has three important considerations: The first consideration is whether the system needs to be grid connected or not. Most of the large scale solar power plants in operation are grid connected. In such systems grid serves as an infinite reservoir.
  • the second consideration is whether the solar system needs storage in the form of batteries or any other storage device.
  • Energy storage for the solar power system is important because solar power is irregular in nature. This causes grid voltage and frequency fluctuations when installed in large capacities.
  • Another problem with solar energy is that the amount of electrics] energy generated varies significantly over a period of time or duration.
  • storage is essential especially during generation of higher energy; solar energy with higher storage capacity is not only necessary for remote areas but also different geological locations having climate fluctuations.
  • the third aspect of the solar power, system is the modularity and ease of installation.
  • a modular system as proposed in the present invention is easily upgraded to the end user requirements. All the present day solar- systems are complicated to install for the end user. There are simple systems like micro- inverters and AC modules but however this system does not offer any provision for storage.
  • Second type has a solar battery charger. This system is like an UPS. In this system battery is charged by solar energy or grid when the grid is available. In the absence of the grid the battery delivers power to the selected load. The transition between the grid and the battery is done by using an automatic switch.
  • UPS solar battery charger
  • the second system type is grid connected solar inverter.
  • This solar inverter may be a string inverter with multiple solar panels connected in series or one inverter connected to a single panel and then connecting multiple inverters in parallel.
  • OBJECTIVE OF THE INVENTION 1. It is the primary objective of the invention to provide modular system so the user can design the system as they need. 2. It is another objective of the invention to provide optional modes in order to suit various energy needs. 3. It is another objective of the i ention to provide a system with ease of installation which reduces the overall p s'em cost significantly.
  • the present invention is related to the field of solar inverter system topology. It describes a new product which enables user to have a modular solar power system.
  • the system comprises at least an inverter module coupled with a PV module, a storage module, an AC grid module and a load. This system offers an option for switching between the grid connected mode and off the grid mode while offering storage.
  • the inverter module circuits comprises a bidirectional DC to AC converter circuit for converting the DC voltage and DC current of the PV module in to AC voltage and AC current as required by the load and also to use the storage device to store the energy from the AC grid, a bidirectional DC to DC converter for storing the energy in a storage device and also support the load in absence of said PV module which is further coupled to said bidirectional DC to AC converter, a control circuit to operate and control said bidirectional DC to DC converter, said bidirectional DC to AC converter and said switching circuit which is coupled to said bidirectional DC to DC converter, at least a communication circuit to establish communication between plurality of inverters and also with outside world which is coupled to said control circuit a switching circuit to physically disconnect between the load and the AC grid and an energy metering and monitoring circuit.
  • the inverter module arranged to switch between islanded mode and grid tied mode using a physical disconnect device. It is arranged to operate in microgrid and grid connected mode also communicates with a control center and other inverters using a remote control and monitoring device along with one of a wireless and wired commu ication link.
  • Figure- 1 shows the proposed system concept in accordance with an aspect of the present invention.
  • Figure-2 shows the block diagram of rmiitiport inverter in the grid connected mode used for one panel with an aspect of the present invention.
  • Figure-3 shows the block diagram o multiport inverter in the micro-grid mode used for one panel with an aspect of the present invention.
  • Figure-4 shows the block diagram of the multiport inverter with an aspect of the present invention.
  • Figure -5 shows the multiple system operating in parallel with an aspect of the present invention.
  • Figure -6 shows the communication between the inverters and the remote control and monitoring device with an aspect of the present invention.
  • the system and method of the proposed multiport modular grid tied PV solar inverter module is explained below with reference to the accompanying drawings in accordance with an embodiment of the present invention.
  • the present invention relates to a solar system which can operate in grid tied and off the grid mode. It also has a battery charging port for charging the batteries. This unique concept of having multiple ports for grid, load, battery and PV makes the hardware very much modular.
  • FIG. 1 A block diagram of the PV solar inverter (11) is illustrated in Figurel .
  • the solar inverter has four ports, namely PV (10), AC grid (12), load (13) and battery (14).There are two possibilities of using this type of inverter.
  • PV input is given as a series and/or parallel combination of multiple PV module DC output.
  • the mverter can simply be module integrated microin verier or per panel inverter.
  • Fig. 2 and Fig. 3 gives a general idea of this system from a common man's perspective if used as a per panel inverter. In this system, each solar panel is independent from each other. If used in the grid connected mode,the output of the inverter can be directly connected to any common power outlet in a typical household.
  • the load circuit can be separated from the grid as shown in Fig. 3.
  • the inverter can work in grid connected or standalone mode with the battery support.
  • the inverter supports a remote control and monitoring device (15).
  • the communication between the inverter and the remote control and monitoring device (15) is on a wireless link.
  • the remote control and monitoring device (15) has the capability of adding multiple solar systems and displaying the energy generated by the system.
  • the system consists of six essential circuits, the first is the bi-directional DC-DC converter ⁇ 8) for charging the storage module i.e. battery(14) or any other storage device, second is a bi-directional DC to AC converter or inverter(19) , the third one is the physical disconnect switch (20) between AC grid module (12) and the load (13), fourth one the control circuit (17) to operate and control DC-DC converter (18), DC-AC converter (19) and the disconnect device (20), fifth is the energy metering or monitoring circuit ( 1) and the last one is the communication circuits(16) for communication between the two inverters and also with the outside world. The communication itself can be wired or wireless.
  • the control of the physical disconnect device helps the inverter operate in grid tied and off the grid modes.
  • Figure 4 shows a block diagram of this multiport inverter.
  • PV Grid tied mode The two systems are designed to operate in five operating modes: PV Grid tied mode:
  • the battery gets charged either from the solar panel or the grid.
  • the inverter delivers solar power to the grid.
  • the inverter supports bi-directional ⁇ power flow. When multiple inverters are connected in parallel, they all follow the - grid voltage and frequency.
  • the battery may get charged from the grid or support grid imbalance by providing reacting power.
  • first inverter acts as a master inverter setting the reference voltage and frequency and the other inverters follow the master. Battery operated off the grid mode:
  • the inverter simply acts as regular battery inverter providing back up power.
  • first inverter acts as a master inverter setting the reference voltage and frequency and the other inverters follow the master.
  • Micro-grid operation In this mode, when the main power grid has failed and the electricity is being generated by local generator (different from PV source) e.g. diesel, all the solar inverters follow the local generator voltage and frequency. Multiple systems : operating in parallel is shown in fig. 5. Micro grid operation is also possible when the multiple inverters are operated in parallel and are operating in the off the grid mode.
  • local generator different from PV source
  • e.g. diesel all the solar inverters follow the local generator voltage and frequency.
  • Multiple systems operating in parallel is shown in fig. 5.
  • Micro grid operation is also possible when the multiple inverters are operated in parallel and are operating in the off the grid mode.
  • the control and communication of the inverter system is digitally programmable and can be configured to change the priorities and preferences of different operating modes.
  • Various types of controls are implemented in this system. They are discussed as below:
  • MPPT Maximum Power point Tracking
  • the inverter itself operates with either a module level MPPT program if it is a microinverter or a string level MPPT program if the inverter is a string inverter and tracks the maximum power of the solar panel.
  • Topology based control In this mode, the inverter operates with closed loop control regulating the output voltage and current of the inverter. In the grid tied mode, the inverter acts a current source and in the off the grid mode, the inverter acts as voltage source. Grids connected/off the grid control:
  • the inverter has control circuit to detect the grid voltage and synchronize with it. It also has the control program to operate in the off the grid mode using the built in switching network. In this mode the inverter controller detects if there is any other source on the load line and if there is none, then it becomes the master and staits generating power. The grid and the load are separated by a physical disconnect device.
  • the inverter has control software to run in master slave configuration when multiple units are connected.
  • the inverters are able to measure the energy generated by them and either communicate it to the outside world or display on a local meter.
  • the inverters are able to communicate between them and also with a remote control and monitoring device (15).
  • This communication can be a wired one or wireless depending on the application.
  • the inverter will have the possibility of both the types of communication.
  • Fig. 6 shows a communication structure between the inverters. Functions such as smart metering may be added to the inverter using this communication.
  • the inverter In this mode, the inverter has advanced control software to charge the battery using battery charger circuit. The inverter has complete software to detect the battery health.
  • This invention is a type of solar inverter. It is designed for low power solar ! systems ha ving power rating in the range of a few kW. Such systems are typically installed on the rooftops of residential or commercial buildings.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Power Conversion In General (AREA)

Abstract

La présente invention concerne un inverseur photovoltaïque modulaire à accès multiples permettant d'offrir une option pour commuter entre un mode connecté au secteur et un mode hors secteur avec un espace de stockage. Le système comprend au moins un module inverseur couplé à un module photovoltaïque, un module de stockage, un module de secteur CA et une charge. Le module inverseur est configuré de façon à commuter entre un mode en îlots et un mode lié au secteur à l'aide d'un dispositif de déconnexion physique. Il est configuré de façon à fonctionner dans un microsecteur et un mode connecté au secteur communique également avec un centre de commande et d'autres inverseurs à l'aide d'un dispositif de surveillance et de commande à distance avec une liaison de communication câblée ou sans fil.
PCT/IN2014/000298 2013-05-03 2014-05-02 Procédé et système destinés à un inverseur photovoltaïque modulaire à accès multiples WO2014192015A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1603/MUM/2013 2013-05-03
IN1603MU2013 2013-05-03

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WO2014192015A2 true WO2014192015A2 (fr) 2014-12-04
WO2014192015A3 WO2014192015A3 (fr) 2016-05-12

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104617605A (zh) * 2015-02-12 2015-05-13 珠海格力电器股份有限公司 微网控制系统和方法
CN105154940A (zh) * 2015-08-10 2015-12-16 南车戚墅堰机车车辆工艺研究所有限公司 一种智能电刷镀电源
CN106787190A (zh) * 2016-12-21 2017-05-31 北京理工大学 一种用于直流微电网系统的监控系统及监控方法
WO2017197437A1 (fr) * 2016-05-17 2017-11-23 Catch Energy Limited Système de collecte d'énergie solaire
CN107658902A (zh) * 2017-10-30 2018-02-02 长春工程学院 一种具有电能质量监控功能的光伏并网逆变器
WO2018170368A1 (fr) 2017-03-16 2018-09-20 Ignacio Juarez Micro-onduleur et contrôleur
EP3329576A4 (fr) * 2015-07-28 2019-03-13 Relink Limited Alimentation sans interruption et procédé pour gérer un flux d'énergie électrique dans un système photovoltaïque connecté au réseau d'énergie électrique
JP2019524043A (ja) * 2016-05-26 2019-08-29 ランディス・ギア イノベーションズ インコーポレイテッドＬａｎｄｉｓ＋Ｇｙｒ Ｉｎｎｏｖａｔｉｏｎｓ， Ｉｎｃ． 分散型発電装置を使用するためのユーティリティメータ
US11143163B2 (en) 2016-03-08 2021-10-12 Semtive Inc. Vertical axis wind turbine
US11187734B2 (en) 2019-05-31 2021-11-30 Landis+Gyr Innovations, Inc. Systems for electrically connecting metering devices and distributed energy resource devices
CN113783238A (zh) * 2021-09-24 2021-12-10 福建省邮电规划设计院有限公司 一种零碳通信用模块化开关电源系统
US11237194B2 (en) 2019-10-11 2022-02-01 Landis+Gyr Innovations, Inc. Meter for use with a distributed energy resource device
US11309714B2 (en) 2016-11-02 2022-04-19 Tesla, Inc. Micro-batteries for energy generation systems
US11415598B2 (en) 2019-01-10 2022-08-16 Landis+Gyr Innovations, Inc. Methods and systems for connecting and metering distributed energy resource devices
US11664663B2 (en) 2018-09-12 2023-05-30 Semtive Inc. Micro inverter and controller

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US8648497B2 (en) * 2009-01-30 2014-02-11 Renewable Power Conversion, Inc. Photovoltaic power plant with distributed DC-to-DC power converters
US9018892B2 (en) * 2011-03-23 2015-04-28 Indian Institute Of Technology Bombay Photo-voltaic array fed switched capacitor DC-DC converter based battery charging for Li-Ion batteries
WO2013186791A2 (fr) * 2012-06-13 2013-12-19 Indian Institute Of Technology Bombay Recherche du point maximal de puissance répartie de réseaux photovoltaïques partiellement ombragés à base de convertisseurs dc-dc à condensateur commuté

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Publication number Priority date Publication date Assignee Title
CN104617605A (zh) * 2015-02-12 2015-05-13 珠海格力电器股份有限公司 微网控制系统和方法
EP3329576A4 (fr) * 2015-07-28 2019-03-13 Relink Limited Alimentation sans interruption et procédé pour gérer un flux d'énergie électrique dans un système photovoltaïque connecté au réseau d'énergie électrique
CN105154940A (zh) * 2015-08-10 2015-12-16 南车戚墅堰机车车辆工艺研究所有限公司 一种智能电刷镀电源
CN105154940B (zh) * 2015-08-10 2018-03-27 中车戚墅堰机车车辆工艺研究所有限公司 一种智能电刷镀电源
US11143163B2 (en) 2016-03-08 2021-10-12 Semtive Inc. Vertical axis wind turbine
WO2017197437A1 (fr) * 2016-05-17 2017-11-23 Catch Energy Limited Système de collecte d'énergie solaire
JP7189384B2 (ja) 2016-05-26 2022-12-13 ランディス・ギア イノベーションズ インコーポレイテッド 分散型発電装置を使用するためのユーティリティメータ
US11223210B2 (en) 2016-05-26 2022-01-11 Landis+Gyr Innovations, Inc. Utility meter for use with distributed generation device
JP2019524043A (ja) * 2016-05-26 2019-08-29 ランディス・ギア イノベーションズ インコーポレイテッドＬａｎｄｉｓ＋Ｇｙｒ Ｉｎｎｏｖａｔｉｏｎｓ， Ｉｎｃ． 分散型発電装置を使用するためのユーティリティメータ
JP2022084816A (ja) * 2016-05-26 2022-06-07 ランディス・ギア イノベーションズ インコーポレイテッド 分散型発電装置を使用するためのユーティリティメータ
JP7046836B2 (ja) 2016-05-26 2022-04-04 ランディス・ギア イノベーションズ インコーポレイテッド 分散型発電装置を使用するためのユーティリティメータ
US11309714B2 (en) 2016-11-02 2022-04-19 Tesla, Inc. Micro-batteries for energy generation systems
CN106787190B (zh) * 2016-12-21 2019-03-29 北京理工大学 一种用于直流微电网系统的监控系统及监控方法
CN106787190A (zh) * 2016-12-21 2017-05-31 北京理工大学 一种用于直流微电网系统的监控系统及监控方法
JP7254759B2 (ja) 2017-03-16 2023-04-10 フアレス，イグナシオ マイクロインバータ及びコントローラ
EP3596796A4 (fr) * 2017-03-16 2020-09-09 Ignacio Juarez Micro-onduleur et contrôleur
JP2020511930A (ja) * 2017-03-16 2020-04-16 フアレス, イグナシオJUAREZ, Ignacio マイクロインバータ及びコントローラ
CN110622379A (zh) * 2017-03-16 2019-12-27 伊格纳西奥·华雷斯 微型逆变器和控制器
WO2018170368A1 (fr) 2017-03-16 2018-09-20 Ignacio Juarez Micro-onduleur et contrôleur
CN107658902B (zh) * 2017-10-30 2024-02-02 长春工程学院 一种具有电能质量监控功能的光伏并网逆变器
CN107658902A (zh) * 2017-10-30 2018-02-02 长春工程学院 一种具有电能质量监控功能的光伏并网逆变器
US11664663B2 (en) 2018-09-12 2023-05-30 Semtive Inc. Micro inverter and controller
US11415598B2 (en) 2019-01-10 2022-08-16 Landis+Gyr Innovations, Inc. Methods and systems for connecting and metering distributed energy resource devices
US11428710B2 (en) 2019-01-10 2022-08-30 Landis+Gyr Innovations, Inc. Methods and systems for connecting and metering distributed energy resource devices
US11187734B2 (en) 2019-05-31 2021-11-30 Landis+Gyr Innovations, Inc. Systems for electrically connecting metering devices and distributed energy resource devices
US11774473B2 (en) 2019-05-31 2023-10-03 Landis+Gyr Technology, Inc. Systems for electrically connecting metering devices and distributed energy resource devices
US11506693B2 (en) 2019-10-11 2022-11-22 Landis+Gyr Innovations, Inc. Meter and socket for use with a distributed energy resource device
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