WO2016004896A1 - Onduleur photovoltaïque et climatiseur - Google Patents

Onduleur photovoltaïque et climatiseur Download PDF

Info

Publication number
WO2016004896A1
WO2016004896A1 PCT/CN2015/083782 CN2015083782W WO2016004896A1 WO 2016004896 A1 WO2016004896 A1 WO 2016004896A1 CN 2015083782 W CN2015083782 W CN 2015083782W WO 2016004896 A1 WO2016004896 A1 WO 2016004896A1
Authority
WO
WIPO (PCT)
Prior art keywords
inverter
grid
switch
photovoltaic inverter
photovoltaic
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/CN2015/083782
Other languages
English (en)
Chinese (zh)
Inventor
马鑫
卓森庆
游剑波
张嘉鑫
李发顺
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.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
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
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Publication of WO2016004896A1 publication Critical patent/WO2016004896A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; 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 feeding a single network from two or more generators or sources in parallel; Arrangements for feeding already energised networks from additional generators or sources in parallel
    • 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
    • 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
    • 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 invention relates to the field of photovoltaic technology, and in particular to a photovoltaic inverter and an air conditioner.
  • the general household photovoltaic inverters are connected to the grid to output alternating current, and for household appliances such as air conditioners, refrigerators, washing machines, etc., which need to use AC-DC-AC conversion to drive the motor, the DC power generated by the photovoltaic cells is inverted and rectified. After that, it becomes DC power, and the utilization efficiency of the electric energy generated by the photovoltaic photovoltaic cell module is low.
  • the object of the present invention is to provide a photovoltaic inverter and an air conditioner, so that the electric energy generated by the photovoltaic cell assembly can be used as a direct current output or an alternating current into an alternating current grid, thereby improving the photovoltaic module.
  • the efficiency of utilization of the generated electrical energy is to provide a photovoltaic inverter and an air conditioner, so that the electric energy generated by the photovoltaic cell assembly can be used as a direct current output or an alternating current into an alternating current grid, thereby improving the photovoltaic module.
  • the present invention adopts the following technical solutions:
  • a photovoltaic inverter comprising a basic photovoltaic inverter unit
  • the basic photovoltaic inverter unit includes a photovoltaic cell assembly, a DC-DC booster, a first switch, a grid-tied inverter, and a grid-connected filter; the photovoltaic cell assembly, the DC-DC booster The grid-connected inverter, the grid-connected filter and the alternating current grid are electrically connected in sequence;
  • the first switch includes an input end and two output ends, and the two output ends are respectively a first output end and a second output end, and an input end of the first switch switch is connected to the DC-DC liter
  • the first output end of the first switch is connected to the input end of the grid-connected inverter for outputting alternating current; the second output of the first switch is used as a DC bus Port for outputting DC power.
  • the basic photovoltaic inverter unit further includes a capacitor connected between an output of the DC-DC booster and an input of the first changeover switch, Capacitors are used for voltage regulation.
  • the grid-connected filter is an EMC filter for filtering harmonics of the output current of the grid-connected inverter.
  • the number of the basic photovoltaic inverter units is N, and the N basic photovoltaic inverters are connected in parallel through the second output end of the first switching switch; the basic photovoltaic inverter The number of units is N ⁇ 2.
  • the basic photovoltaic inverter unit further includes a communication module for data communication between the N basic photovoltaic inverter units.
  • the communication modules of the N said substantially photovoltaic inverter units are connected by a communication cable.
  • the number of the communication cables is N-1.
  • the photovoltaic inverter further includes a controller for controlling an input end of the first switch and a first output and/or a second of the first switch The output is connected.
  • the present invention also relates to an air conditioner comprising the photovoltaic inverter of any of the above;
  • a second switch a compressor inverter, a power factor corrector, a rectifier, an EMC filter, and a third switch;
  • the AC power grid sequentially passes through the third switch, the EMC filter, the rectifier,
  • the power factor corrector and the compressor inverter are connected to a compressor, and a DC bus port is sequentially connected to the compressor through the second changeover switch and a compressor inverter.
  • the air conditioner further includes an air conditioning communication module for data communication between the air conditioner and the photovoltaic inverter.
  • the photovoltaic inverter and the air conditioner of the present invention by providing a first switch between the DC-DC booster and the grid-connected inverter, so that the photovoltaic inverter can pass through the second output of the first switch
  • the output DC power can also be connected to the first output end of the first switch to output AC power.
  • the AC-DC-AC switch By controlling the working state of the first switch, the AC-DC-AC switch can be realized, and the household appliances such as the air conditioner and the washing machine are satisfied.
  • the driving requirements increase the utilization efficiency of the electric energy generated by the photovoltaic cell module.
  • FIG. 1 is a schematic diagram of an embodiment of a basic photovoltaic inverter unit of a photovoltaic inverter of the present invention
  • FIG. 2 is a schematic diagram of a plurality of basic photovoltaic inverter units of a photovoltaic inverter of the present invention in parallel;
  • Fig. 3 is a schematic view showing an embodiment of an air conditioner of the present invention.
  • the photovoltaic inverter of the present invention comprises a basic photovoltaic inverter unit, and the basic photovoltaic inverter unit comprises a photovoltaic cell component 1, a DC-DC booster 2, and a capacitor 3.
  • the photovoltaic cell component 1, the DC-DC booster 2, the grid-connected inverter 6, the grid-connected filter 7, and the AC grid 8 are electrically connected in sequence.
  • the photovoltaic cell module 1 is used to convert solar energy into electrical energy and output low voltage direct current.
  • the DC-DC booster 2 is used to convert the low-voltage direct current generated by the photovoltaic cell module 1 into high-voltage direct current, so that the low-voltage direct current generated by the photovoltaic cell assembly is raised to a high voltage required by the grid-connected inverter.
  • the first switch 5 is disposed between the DC-DC booster 2 and the grid-connected inverter 6.
  • the first switch 5 includes an input terminal and two output terminals, and the two output terminals are respectively a first output terminal and Second output.
  • the input end of the first changeover switch 5 is connected to the output end of the DC-DC booster 2.
  • the first output end of the first changeover switch 5 is connected to the input end of the grid-connected inverter 6, and is used for grid-connecting output of alternating current.
  • the high-voltage direct current outputted by the DC-DC booster 2 enters the grid-connected inverter 6 through the first switch 5, and the grid-connected inverter 6 is used to convert the high-voltage direct current into alternating current, and then passes through the grid-connected filter 7. After filtering, it is connected to the AC grid 8, and the DC power generated by the PV module 1 is integrated into the AC grid.
  • the second output end of the first changeover switch 5 serves as a DC bus port for outputting direct current, so that the high voltage direct current output from the DC-DC booster 2 directly outputs direct current through the first changeover switch 5.
  • the second output end of the first switch 5 can be directly connected to the DC-AC converter of the household appliance or the DC primary of the DC-DC converter, so that the conversion of the electric energy is reduced and the number of the electric energy is reduced. The efficiency of utilization of electrical energy generated by photovoltaic cells.
  • the general photovoltaic inverter directly outputs the alternating current through the grid-connected inverter, and then the alternating current output from the alternating current grid is inverted, rectified and filtered, and then output the direct current and then connected to the DC-AC converter of the household appliance or DC-DC converter.
  • the DC primary of the device leads to more transformation of the electric energy, and the utilization efficiency of the electric energy generated by the photovoltaic cell is low.
  • the photovoltaic inverter of the invention directly outputs direct current only after passing through the first-stage DC-DC booster, thereby improving the utilization efficiency of the electric energy generated by the photovoltaic cell assembly.
  • the first switching switch is arranged between the DC-DC booster and the grid-connected inverter, so that the photovoltaic inverter can output direct current through the second output end of the first switching switch, or can pass the first switching switch.
  • the first output is connected to the grid AC power, by controlling the working state of the first switch, realizes the switching between AC-DC-AC, satisfies the driving requirements of household appliances such as air conditioners and washing machines, and improves the utilization efficiency of the electric energy generated by the photovoltaic cells.
  • the capacitor 3 is connected between the output of the DC-DC booster 2 and the input of the first changeover switch 5, and the capacitor 3 is used for voltage regulation.
  • the high-voltage direct current outputted by the DC-DC booster 2 is regulated by the capacitor 3 and sent to the input end of the first changeover switch 5, thereby preventing voltage fluctuations from causing damage to the household appliances and the grid-connected inverter, and ensuring the household appliances. And the normal operation of electrical equipment such as grid-connected inverters.
  • the grid-connected filter 7 is an EMC filter for filtering harmonics of the output current of the grid-connected inverter 6.
  • EMC Electromagnetic Compatibility
  • the grid-connected filter 7 is an EMC filter for filtering harmonics of the output current of the grid-connected inverter 6.
  • EMC Electromagnetic Compatibility
  • the number of basic photovoltaic inverter units is N, and the N basic photovoltaic inverters are arranged in parallel through the second output end of the first changeover switch 5, that is, N.
  • the basic PV inverters are arranged in parallel via the DC bus ports.
  • the number of basic photovoltaic inverter units is N ⁇ 2, and N is an integer.
  • the DC bus ports of the basic photovoltaic inverter unit can be connected in parallel, that is, the second output terminals of the first switching switch 5 of the basic photovoltaic inverter unit are connected in parallel.
  • the photovoltaic cell assemblies 1 in the respective basic photovoltaic inverter units may be identical, or different models may be selected according to actual needs.
  • the communication modules 4 of the N basic photovoltaic inverter units are connected by a communication cable, and the communication module 4 is used for data communication between N basic photovoltaic inverter units to realize N parallel basic photovoltaic inverters. Collaborative work between units.
  • the number of communication cables is N-1, and the N-1 communication cables form a communication cable loop for communication between the respective basic photovoltaic inverters, where N refers to the number of basic photovoltaic inverter units.
  • data communication can be performed between the N communication modules by means of wireless communication such as Bluetooth or ZigBee.
  • the photovoltaic inverter further comprises a controller for controlling the input of the first changeover switch 5 to communicate with the first output and/or the second output of the first changeover switch 5.
  • the controller controls the input end of the first switch 5 to communicate with the first output of the first switch 5
  • the photovoltaic inverter only outputs AC power in parallel, and does not output DC power.
  • the controller controls the input end of the first switch 5 to communicate with the second output of the first switch 5, the photovoltaic inverter outputs only direct current and does not perform grid-connected output.
  • the photovoltaic inverter is connected to the grid to output alternating current and output direct current.
  • control of the first switch 5 can also be performed by other methods, for example, comparing the power consumption of the input end and the output end by the comparator, and directly outputting the control signal to control the first switch 5
  • the input is in communication with the first output and/or the second output of the first changeover switch 5.
  • the first switch 5 can switch the basic photovoltaic inverter unit between three working states, and realize switching between AC-DC-AC through three kinds of working states, and the three working states are respectively:
  • State 1 The controller controls the input end of the first changeover switch 5 to simultaneously communicate with the first output end and the second output end of the first changeover switch 5, at which time the DC sides of the N basic photovoltaic inverter units are connected in parallel, each basic The photovoltaic inverter units are all connected to the grid to output AC power.
  • state 1 can be used.
  • State 2 The controller controls the input end of the first changeover switch 5 to communicate with the first output end of the first changeover switch 5, and the input end of the first changeover switch 5 is not in communication with the second output end of the first changeover switch 5.
  • the basic photovoltaic inverter unit performs independent grid-connected power generation and does not output direct current.
  • State 1 or State 2 can be used when only grid-connected inversion is performed.
  • State 3 The controller controls the input end of the first changeover switch 5 to communicate with the second output end of the first changeover switch 5, and the input end of the first changeover switch 5 is not in communication with the first output end of the first changeover switch 5. At this time, the DC sides of the N basic photovoltaic inverter units are connected in parallel but the grid connection is not performed. When the power generation capacity of the photovoltaic cell module is insufficient to meet the consumption of the household appliance using the direct current, the state 3 can be used to reduce the power consumption of the grid as much as possible.
  • the present invention also relates to an air conditioner comprising the photovoltaic inverter of any of the above embodiments, the air conditioner further comprising a second switch 9, a compressor inverter 13, and a power factor corrector (PFC, Power Factor Correction) 10.
  • the AC grid 8 is in turn connected to the compressor 14 via a third changeover switch 12, an EMC filter 16, a rectifier 11, a power factor corrector 10 and a compressor inverter 13, the DC bus port passing through the second changeover switch 9 and the compressor in sequence
  • the inverter 13 is connected to the compressor 14. It should be clear that the DC bus port here is matched to the DC bus port of the photovoltaic inverter, ie the DC bus port is adapted to the second output of the first changeover switch 5.
  • the second switch 9 is used for controlling the communication between the DC bus port and the air conditioner, that is, for controlling the communication between the PV inverter and the air conditioner, so that the air conditioner works by using the DC power generated by the PV inverter.
  • the third switch 12 is used to control the AC grid to communicate with the air conditioner such that the air conditioner operates using the AC power of the AC grid.
  • the air conditioner further includes an air conditioning communication module 15 for data communication between the air conditioner and the photovoltaic inverter, and the air conditioning communication module 15 Matching with the communication module 4 in the photovoltaic inverter.
  • the power of the photovoltaic cell component and the number of parallel connections of the basic photovoltaic inverter unit can be selected according to the power required for the normal operation of the air conditioner.
  • the controller controls the input end of the first changeover switch 5 and the second output of the first changeover switch 5 through the communication module 4 of the air conditioner communication module 15 and the photovoltaic inverter.
  • the terminal is connected, and the direct current generated by the photovoltaic cell module 1 is sent to the DC bus port of the photovoltaic inverter, and the second switch 9 of the air conditioner controls the DC bus port of the air conditioner to communicate with the DC bus port of the photovoltaic inverter, and the air conditioner
  • the third changeover switch 12 is turned off.
  • the air conditioner operates using the electric energy generated by the photovoltaic cell module 1 instead of the electric energy of the AC power grid.
  • the second switch 9 of the air conditioner controls the DC bus port of the air conditioner to be disconnected from the DC bus port of the photovoltaic inverter, and the third switch 12 of the air conditioner makes the air conditioner and the air conditioner The AC grid 8 is connected. At this time, the air conditioner operates using the power of the AC grid instead of the power generated by the photovoltaic module.
  • the photovoltaic inverter and the air conditioner of the present invention by providing a first switch between the DC-DC booster and the grid-connected inverter, so that the photovoltaic inverter can pass through the second output of the first switch
  • the output DC power can also be connected to the first output end of the first switch to output AC power.
  • the AC-DC-AC switch By controlling the working state of the first switch, the AC-DC-AC switch can be realized, and the household appliances such as the air conditioner and the washing machine are satisfied.
  • the driving requirements increase the utilization efficiency of the electric energy generated by the photovoltaic cell module.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

L'invention concerne un onduleur photovoltaïque comprenant une unité d'onduleur photovoltaïque de base. L'unité d'onduleur photovoltaïque de base comprend un ensemble batterie photovoltaïque, un survolteur CC-CC, un premier interrupteur de commutation, un onduleur connecté au réseau et un filtre connecté au réseau; l'ensemble batterie photovoltaïque, le survolteur CC-CC, l'onduleur connecté au réseau, le filtre connecté au réseau et un réseau de courant alternatif sont électriquement connectés en série; le premier interrupteur de commutation comprend une première borne d'entrée et deux bornes de sortie; les deux bornes de sortie sont la première borne de sortie et la seconde borne de sortie; la borne d'entrée du premier interrupteur de commutation est connectée à la borne de sortie du survolteur CC-CC; la première borne de sortie du premier interrupteur de commutation est connectée à la borne d'entrée de l'onduleur connecté au réseau pour délivrer en sortie le courant alternatif dans le réseau; la seconde sortie du premier interrupteur de commutation sert de borne de bus à courant continu pour délivrer en sortie le courant continu. La présente invention concerne également un climatiseur. L'onduleur photovoltaïque et le climatiseur selon la présente invention améliorent le facteur d'utilisation de l'électricité générée par l'ensemble batterie photovoltaïque.
PCT/CN2015/083782 2014-07-11 2015-07-10 Onduleur photovoltaïque et climatiseur Ceased WO2016004896A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410331942.8 2014-07-11
CN201410331942.8A CN104135225A (zh) 2014-07-11 2014-07-11 光伏逆变器及空调器

Publications (1)

Publication Number Publication Date
WO2016004896A1 true WO2016004896A1 (fr) 2016-01-14

Family

ID=51807789

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/083782 Ceased WO2016004896A1 (fr) 2014-07-11 2015-07-10 Onduleur photovoltaïque et climatiseur

Country Status (2)

Country Link
CN (1) CN104135225A (fr)
WO (1) WO2016004896A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104135225A (zh) * 2014-07-11 2014-11-05 珠海格力电器股份有限公司 光伏逆变器及空调器
CN105048737A (zh) * 2015-08-07 2015-11-11 重庆铸豪机械有限责任公司 利用太阳能供电进行生产汽车起动马达端盖的系统
CN109210655A (zh) * 2018-10-17 2019-01-15 珠海格力电器股份有限公司 空调设备以及用于空调设备的电能处理方法
CN112398171A (zh) * 2020-11-20 2021-02-23 珠海格力电器股份有限公司 光伏系统及其控制方法、以及空调系统

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0654448A (ja) * 1992-07-29 1994-02-25 Japan Storage Battery Co Ltd 太陽電池の電力変換装置
CN201623499U (zh) * 2010-01-22 2010-11-03 扬州晶旭电源有限公司 具有可扩展功能的太阳能逆变器集控装置
CN202019227U (zh) * 2010-11-30 2011-10-26 珠海格力节能环保制冷技术研究中心有限公司 空调器及其供电系统
CN102480167A (zh) * 2010-11-30 2012-05-30 珠海格力节能环保制冷技术研究中心有限公司 空调器及其供电系统
CN103280825A (zh) * 2013-01-30 2013-09-04 东南大学 一种光伏电站多台逆变器协调控制装置及控制方法
CN203632269U (zh) * 2013-12-24 2014-06-04 珠海格力电器股份有限公司 并网连接设备和并网供电系统
CN203895990U (zh) * 2013-12-24 2014-10-22 珠海格力电器股份有限公司 光伏并网系统
CN104110795A (zh) * 2014-07-01 2014-10-22 珠海格力电器股份有限公司 光伏空调系统及其控制方法
CN104135225A (zh) * 2014-07-11 2014-11-05 珠海格力电器股份有限公司 光伏逆变器及空调器
CN204046508U (zh) * 2014-07-11 2014-12-24 珠海格力电器股份有限公司 光伏逆变器及空调器
CN204043127U (zh) * 2014-07-01 2014-12-24 珠海格力电器股份有限公司 光伏空调系统
CN104734177A (zh) * 2013-12-24 2015-06-24 珠海格力电器股份有限公司 并网连接设备及其控制方法和并网供电系统
CN104734181A (zh) * 2013-12-24 2015-06-24 珠海格力电器股份有限公司 光伏并网系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0168094B1 (ko) * 1993-10-19 1999-01-15 김광호 공기조화기의 운전제어장치 및 그 제어방법
KR20070034267A (ko) * 2005-09-23 2007-03-28 엘지전자 주식회사 태양에너지를 이용한 인버터 에어컨 및 제어방법
US20110048825A1 (en) * 2009-08-28 2011-03-03 Gary Starr Air conditioner for electric car
CN203301399U (zh) * 2013-05-30 2013-11-20 广东美的制冷设备有限公司 一种太阳能空调器系统及其太阳能空调装置

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0654448A (ja) * 1992-07-29 1994-02-25 Japan Storage Battery Co Ltd 太陽電池の電力変換装置
CN201623499U (zh) * 2010-01-22 2010-11-03 扬州晶旭电源有限公司 具有可扩展功能的太阳能逆变器集控装置
CN202019227U (zh) * 2010-11-30 2011-10-26 珠海格力节能环保制冷技术研究中心有限公司 空调器及其供电系统
CN102480167A (zh) * 2010-11-30 2012-05-30 珠海格力节能环保制冷技术研究中心有限公司 空调器及其供电系统
CN103280825A (zh) * 2013-01-30 2013-09-04 东南大学 一种光伏电站多台逆变器协调控制装置及控制方法
CN203895990U (zh) * 2013-12-24 2014-10-22 珠海格力电器股份有限公司 光伏并网系统
CN203632269U (zh) * 2013-12-24 2014-06-04 珠海格力电器股份有限公司 并网连接设备和并网供电系统
CN104734177A (zh) * 2013-12-24 2015-06-24 珠海格力电器股份有限公司 并网连接设备及其控制方法和并网供电系统
CN104734181A (zh) * 2013-12-24 2015-06-24 珠海格力电器股份有限公司 光伏并网系统
CN104110795A (zh) * 2014-07-01 2014-10-22 珠海格力电器股份有限公司 光伏空调系统及其控制方法
CN204043127U (zh) * 2014-07-01 2014-12-24 珠海格力电器股份有限公司 光伏空调系统
CN104135225A (zh) * 2014-07-11 2014-11-05 珠海格力电器股份有限公司 光伏逆变器及空调器
CN204046508U (zh) * 2014-07-11 2014-12-24 珠海格力电器股份有限公司 光伏逆变器及空调器

Also Published As

Publication number Publication date
CN104135225A (zh) 2014-11-05

Similar Documents

Publication Publication Date Title
CN104319761B (zh) 光伏空调系统及具有其的光伏空调
CN101917054B (zh) 带太阳能电池的直流变频空调器
CN105262433B (zh) 能源网关、家用电器、直流微电网系统及其能源管理方法
EP3244523B1 (fr) Dispositif photovoltaïque courant alternatif-courant continu
CN107005059A (zh) 一种电流源逆变器系统及逆变装置
CN103915856A (zh) 一种基站并网-充电光伏微逆变器系统及其控制方法
CN205265555U (zh) 一种级联多电平逆变器及其应用系统
CN203368361U (zh) 一种多路直流输入的光伏逆变器
CN111525672A (zh) 一种多端口储能电池
TW201803241A (zh) 分散模組式併網轉換裝置及其控制方法
CN105337520A (zh) 光伏并网变换器、光伏供电系统和电器
WO2016004896A1 (fr) Onduleur photovoltaïque et climatiseur
CN204205969U (zh) 一种电源转换器及应用其的光伏空调系统
CN108604868B (zh) 一种单级三相电源转换装置及输电装置
CN102593878B (zh) 具有交流与直流充电功能的移动载具充电装置
CN204046508U (zh) 光伏逆变器及空调器
CN202535091U (zh) 光伏微并网逆变器
Sabry et al. Stand-alone backup power system for electrical appliances with solar PV and grid options
CN104269843A (zh) 光伏空调供电电路及光伏空调
CN204118734U (zh) 光伏空调供电电路及光伏空调
CN203056672U (zh) 光伏直流离网系统
CN203164391U (zh) 一种逆变型直流电源老化装置
CN115549193A (zh) 空调装置、变频方法及供能系统
CN202374029U (zh) 一种具有超级电容做存储的不间断供电的模块电源
Raghumanth et al. A minimally disruptive DC micro grid for hybrid consumer applications

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15818762

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15818762

Country of ref document: EP

Kind code of ref document: A1