WO2024001366A1 - 户用储能的多源耦合系统 - Google Patents

户用储能的多源耦合系统 Download PDF

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Publication number
WO2024001366A1
WO2024001366A1 PCT/CN2023/085404 CN2023085404W WO2024001366A1 WO 2024001366 A1 WO2024001366 A1 WO 2024001366A1 CN 2023085404 W CN2023085404 W CN 2023085404W WO 2024001366 A1 WO2024001366 A1 WO 2024001366A1
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WO
WIPO (PCT)
Prior art keywords
switch
energy storage
power
coupled
energy
Prior art date
Application number
PCT/CN2023/085404
Other languages
English (en)
French (fr)
Inventor
王涛
肖刚
王大庆
陈松
Original Assignee
深圳市富兰瓦时技术有限公司
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Application filed by 深圳市富兰瓦时技术有限公司 filed Critical 深圳市富兰瓦时技术有限公司
Priority to US18/350,920 priority Critical patent/US20240006888A1/en
Publication of WO2024001366A1 publication Critical patent/WO2024001366A1/zh

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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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • 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
    • H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power 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
    • H02J3/28—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
    • H02J3/28—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
    • H02J3/322—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • 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
    • H02J2300/30—The power source being a fuel cell
    • 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
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/10—The network having a local or delimited stationary reach
    • H02J2310/12—The local stationary network supplying a household or a building

Definitions

  • This application relates to the field of household energy storage technology, for example, to a multi-source coupling system for household energy storage.
  • Microgrid refers to a small power generation and distribution system composed of distributed power sources, energy storage devices, energy conversion devices, related loads and protection devices. Household microgrids in related technologies can only couple photovoltaic and grid power sources at the same time. When a generator or other power source that does not have a phase lock function is coupled to an energy storage system, the equipment will not work properly or even be damaged due to phase out-of-synchronization. In addition, DC power cannot be connected in parallel with AC, which limits the use scenarios of home microgrids and is not effective for home energy storage.
  • This application provides a multi-source coupling system for household energy storage to improve the use effect of the household energy storage system.
  • This application provides a multi-source coupling system for household energy storage, including: an energy gateway configured to control the coupling and decoupling of different power sources; an energy storage system coupled with the energy gateway and configured to store electrical energy; A power conversion system, coupled to the energy gateway, is configured to convert the different power sources into current sources or voltage sources.
  • the energy storage system includes at least one energy storage module configured to store electrical energy.
  • the energy storage system includes a plurality of energy storage modules, and the energy storage system further includes a combiner box configured to combine the power of the plurality of energy storage modules.
  • the power conversion system includes a plurality of power conversion modules, each of the plurality of power conversion modules configured to couple to one of the different power sources.
  • Any one of the plurality of power conversion modules is a DC-AC (Direct Current-Alternating Current, DC-AC) conversion module or an (Alternating Current-Direct Current, AC-AC) conversion module.
  • DC-AC Direct Current-Alternating Current, DC-AC
  • AC-AC Alternating Current-Direct Current
  • the plurality of power conversion modules have phase locking functions.
  • the energy gateway includes a first switch, a second switch and a third switch; the first switch and the The second switch is coupled; the third switch is coupled between the first switch and the second switch; the first switch is configured to couple the power conversion system and the photovoltaic power source; the second switch The third switch is configured to couple the power conversion system and the load; the third switch is configured to couple the energy storage system.
  • the energy gateway also includes a fourth switch coupled between the first switch and the second switch; the fourth switch is configured to couple the power conversion system and the generator.
  • the energy gateway also includes a fifth switch, the fifth switch is coupled between the first switch and the second switch; the fifth switch is configured to couple the power conversion system and the vehicle power output port .
  • the energy gateway also includes a sixth switch coupled between the first switch and the second switch; the sixth switch is configured to couple the power conversion system and the fuel cell.
  • Figure 1 is a schematic diagram of a multi-source coupling system for household energy storage in an embodiment of the present application
  • Figure 2 is a schematic diagram of a multi-source coupling system for household energy storage in another embodiment of the present application
  • Figure 3 is a schematic diagram of a multi-source coupling system for household energy storage in another embodiment of the present application.
  • Figure 4 is a schematic diagram of a multi-source coupling system for household energy storage in another embodiment of the present application.
  • Figure 5 is a schematic diagram of a multi-source coupling system for household energy storage in another embodiment of the present application.
  • Energy gateway 10 Energy storage system 20, power conversion system 30, power source 40, load 50; Energy storage module 201, combiner box 202, power conversion module 301, photovoltaic power source 401; The first switch SW1, the second switch SW2, the third switch SW3, the fourth switch SW4, the fifth switch SW5, the sixth switch SW6, the generator 402, the vehicle power output port 403, and the fuel cell 404.
  • the multi-source coupling system for household energy storage includes: an energy gateway 10 configured to control the coupling and decomposition of different power sources 40. Coupling; energy storage system 20, coupled with the energy gateway 10, is configured to store electrical energy; power conversion system 30, Coupled with the energy gateway 10, it is configured to convert different power sources 40 into current sources or voltage sources.
  • a multi-source coupling system for household energy storage is applied to the household energy storage system.
  • Multiple power sources 40 are coupled to the household energy storage system to store energy for the household energy storage system.
  • the energy gateway 10 is configured to control the coupling and decoupling of different power sources 40. When the power sources 40 are coupled, electric energy can be stored for the energy storage system 20 through the power sources 40.
  • the energy storage system 20 is configured to store electrical energy, and when the main power supply is disconnected, power is provided through the energy storage system 20 .
  • the power conversion system 30 is coupled to the energy gateway 10 , and different power sources 40 are coupled into the energy gateway 10 through the power conversion system 30 .
  • the power conversion system 30 is configured to convert the power source 40 into a current source or a voltage source to match the working mode of the household energy storage system.
  • the power conversion system 30 is configured to switch the power source 40 between direct current and alternating current, or by transforming the voltage of the alternating current power source, so as to better work for the energy storage system 20 .
  • the first end of the energy gateway 10 is coupled with the energy storage system 20 , and the second end of the energy gateway 10 is coupled with the power conversion system 30 .
  • the power source 40 is coupled with the energy gateway 10 by coupling with the power conversion module 301 .
  • the energy gateway 10 is coupled with the load 50, and the energy storage system 20 supplies power to the load 50.
  • the power source 40 is coupled to the energy gateway 10 to provide power to the energy storage system 20 .
  • the load 50 is powered through the energy storage system 20 .
  • the energy storage system 20 can switch to the working mode of a voltage source or the working mode of a current source.
  • the energy storage system 20 is powered by the photovoltaic power source 401.
  • the energy system 20 can be switched to the working mode of the current source.
  • the energy source gateway is configured to control the coupling and decoupling of different power sources 40
  • the energy storage system 20 is coupled to the energy gateway 10 and is configured to store electric energy
  • the power conversion system 30 is coupled to the energy gateway 10.
  • the power conversion system 30 includes a plurality of power conversion modules 301, each power conversion module 301 is coupled to one power source 40, and the power conversion module 301 is configured to convert different power sources 40 into current sources or voltage sources.
  • the power source 40 is converted into a current source and a voltage source, and multiple power sources 40 are coupled to the energy storage system 20, so that when different types of power sources 40 are coupled to the energy gateway 10, the multiple power sources 40 can work together to provide storage space.
  • the energy device provides power, improves the coupling effect of the power source 40 of the household energy storage system, and improves the use effect of the household energy storage system.
  • the energy storage system 20 includes at least one energy storage module 201, and each energy storage module 201 is configured to store electrical energy.
  • the energy storage system 20 also includes a combiner box 202 configured to combine multiple energy storage modules.
  • the power of block 201 is combined.
  • the energy storage system 20 includes at least one energy storage module 201, and each energy storage module 201 serves as an electricity storage unit to store electrical energy.
  • each energy storage module 201 serves as an electricity storage unit to store electrical energy.
  • the number of energy storage modules 201 is two or more, the energy storage modules 201 are coupled in series or parallel. According to the usage scenario of the household energy storage system, the number of energy storage modules 201 can be increased or decreased to improve Usage scenarios and usage flexibility of household energy storage systems.
  • the energy storage system 20 is coupled to the energy gateway 10 through a combiner box 202.
  • the combiner box 202 is configured to combine the electrical energy of the multiple energy storage modules 201 and combine the electrical energy.
  • multiple energy storage modules 201 are provided to form the energy storage system 20, and the electric energy of the multiple energy storage modules 201 is combined through the combiner box 202, and the number of energy storage modules 201 can be increased or reduced according to the actual application. , improve the breadth of application scenarios.
  • the power conversion system 30 includes multiple power conversion modules 301 , and each power conversion module 301 is coupled to a power source 40 .
  • the power conversion module 301 is a DC-AC conversion module or an AC-AC conversion module.
  • the power conversion system 30 includes at least one power conversion module 301 , each power conversion module 301 coupled to a power source 40 . According to actual usage requirements, the number of power sources that need to be coupled can be increased or reduced, and the number of power conversion modules 301 that need to be coupled can be increased or reduced at the same time.
  • the power conversion module 301 is divided into a DC-AC conversion module or an AC-AC conversion module.
  • the voltage source is coupled to the AC-AC conversion module; when the power source 40 is a DC
  • the DC power supply is coupled to the DC-AC conversion module.
  • multiple power conversion modules 301 are provided, and the number of power sources 40 can be flexibly increased, and the working mode of the power source 40 is converted through the power conversion module 301, so that multiple power sources 40 can be coupled together.
  • the convenience of coupling the power source 40 to the energy storage system 20 is improved.
  • the power conversion module 301 has a phase lock function.
  • the power conversion module 301 has a phase locking function and can provide a phase locking function for the coupled power sources 40, so that the coupled power sources 40 can maintain the same phase to normally supply power to the energy storage system 20, and can ensure that the power sources 40 do not damaged.
  • the energy gateway 10 includes a first switch SW1, a second switch SW2 and a third switch SW3; the first switch SW1 is coupled to the second switch SW2; the third switch SW3 is coupled to Between the first switch SW1 and the second switch SW2; the first switch SW1 is configured to couple the power conversion system 30 and the photovoltaic power source 401; the second switch SW2 is configured to couple the Power conversion system 30 and load 50; the third switch SW3 is configured to couple the storage Capable system 20.
  • the first switch SW1 is configured to couple the power conversion system 30 and the photovoltaic power source 401, and the photovoltaic power source 401 is coupled to the energy gateway 10 through the power conversion module 301, where the power conversion module 301 is AC-AC. conversion module.
  • the second switch SW2 is configured to couple the power conversion system 30 and the load 50
  • the third switch SW3 is disposed between the first switch SW1 and the second switch SW2
  • the third switch SW3 is coupled with the energy storage system 20 .
  • the energy storage system 20 When the first switch SW1 and the third switch SW3 are closed and the second switch SW2 is open, the energy storage system 20 is charged through the photovoltaic power source 401; when the first switch SW1 is open and the second switch SW2 and the third switch SW3 are closed When , the energy storage system 20 supplies power to the load 50 .
  • the charging process and the power supply process of the energy storage system 20 are controlled, thereby improving the convenience of use of the household energy storage system.
  • the energy gateway 10 further includes a fourth switch SW4, the fourth switch SW4 is coupled between the first switch SW1 and the second switch SW2; the fourth switch SW4 is configured To couple the power conversion system 30 and the generator 402.
  • the fourth switch SW4 is coupled to the first switch SW1, the second switch SW2, and the third switch SW3.
  • the generator 402 serves as a power source and is coupled to the power conversion system 30 and the energy gateway 10.
  • the energy gateway 10 is coupled to the power conversion module 301 through the fourth switch SW4, and the power conversion module 301 is coupled to the generator 402.
  • the power conversion module 301 is an AC-AC conversion module
  • the generator 402 is a voltage source
  • the AC-AC conversion module provides a phase locking function for the generator 402.
  • the fourth switch SW4 is configured for the generator 402.
  • the generator 402 is coupled to the energy gateway 10 through the AC-AC conversion module.
  • the coupling and decoupling of the generator 402 is controlled by the fourth switch SW4, so that the power source can be realized.
  • the energy gateway 10 further includes a fifth switch SW5, the fifth switch SW5 is coupled between the first switch SW1 and the second switch SW2; the fifth switch SW5 is configured To couple the power conversion system 30 and the automobile power output port 403.
  • the fifth switch SW5 is coupled to the first switch SW1, the second switch SW2, and the third switch SW3, and is connected in parallel with the fourth switch SW4.
  • the vehicle power output port 403 serves as a power source and is coupled to the power conversion system 30 and the energy gateway 10.
  • the energy gateway 10 is coupled to the power conversion module 301 through the fifth switch SW5, and the power conversion module 301 is coupled to the vehicle power output port 403.
  • the power conversion module 301 is an AC-AC conversion module, and the automobile power output port 403 is a voltage source.
  • the AC-AC conversion module provides a phase lock function for the automobile power output port 403.
  • the fifth switch SW5 is configured for the vehicle power output port 403.
  • the vehicle power output port 403 is coupled to the energy gateway 10 through the AC-AC conversion module.
  • the fifth switch SW5 controls the coupling and communication of the vehicle power output port 403. disconnection, the coupling convenience of the power source 40 can be achieved.
  • the energy gateway 10 further includes a sixth switch SW6, the sixth switch SW6 is coupled between the first switch SW1 and the second switch SW2; the sixth switch SW6 is configured To couple the power conversion system 30 and the fuel cell 404.
  • the sixth switch SW6 is coupled to the first switch SW1, the second switch SW2, and the third switch SW3, and is connected in parallel with the fourth switch SW4 and the fifth switch SW5.
  • the fuel cell 404 serves as the power source 40 and is coupled to the power conversion system 30 and to the energy gateway. 10.
  • the energy gateway 10 is coupled to the power conversion module 301 through the sixth switch SW6, and the power conversion module 301 is coupled to the fuel cell 404.
  • the power conversion module 301 is a DC-AC conversion module
  • the fuel cell 404 is a DC power supply
  • the DC-AC conversion module converts direct current into alternating current.
  • the fuel cell 404 is configured with a sixth switch SW6.
  • the fuel cell 404 is coupled to the energy gateway 10 through the DC-AC conversion module.
  • the sixth switch SW6 controls the coupling and decoupling of the fuel cell 404, thereby realizing the power source. 40's coupling convenience.

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

Abstract

本申请公开了一种户用储能的多源耦合系统，包括：能源网关，被配置为控制不同电力源的耦合与解耦；储能系统，与所述能源网关耦合，被配置为储存电能；功率转换系统，与所述能源网关耦合，被配置为将所述不同电力源转换成电流源或者电压源。

Description

户用储能的多源耦合系统
本申请要求在2022年06月29日提交中国专利局、申请号为202221705010.1的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及家用储能技术领域，例如涉及户用储能的多源耦合系统。
背景技术
微电网是指由分布式电源、储能装置、能量转换装置、相关负载和保护装置等集合而成的小型发配电系统。相关技术中的的家庭微电网，只能同时耦合光伏和电网等电源，当发电机或者其它不具备锁相功能的电源耦合储能系统时，设备会因为相位不同步而无法正常工作甚至损坏。另外，直流电源无法同交流电进行并联，限制了家庭微电网的使用场景，对于家用储能的效果不佳。
发明内容
本申请提供一种户用储能的多源耦合系统，以提高家用储能系统使用效果。
本申请提供一种户用储能的多源耦合系统，包括：能源网关，被配置为控制不同电力源的耦合与解耦；储能系统，与所述能源网关耦合，被配置为储存电能；功率转换系统，与所述能源网关耦合，被配置为将所述不同电力源转换成电流源或者电压源。
所述储能系统包括至少一个储能模块，所述至少一个储能模块被配置为储存电能。
所述储能系统包括多个储能模块，所述储能系统还包括汇流箱，所述汇流箱被配置为对所述多个储能模块的电力进行汇流。
所述功率转换系统包括多个功率转换模块，所述多个功率转换模块中的每一个功率转换模块被配置为耦合所述不同电力源中的一个电力源。
所述多个功率转换模块中的任一功率转换模块为直流-交流(Direct Current-Alternating Current，DC-AC)转换模块或者(Alternating Current-Direct Current，AC-AC)转换模块。
所述多个功率转换模块具有锁相功能。
所述能源网关包括第一开关、第二开关和第三开关；所述第一开关与所述 第二开关耦合；所述第三开关耦合于所述第一开关和所述第二开关之间；所述第一开关被配置为耦合所述功率转换系统及光伏电力源；所述第二开关被配置为耦合所述功率转换系统及负载；所述第三开关被配置为耦合所述储能系统。
所述能源网关还包括第四开关，所述第四开关耦合于所述第一开关和所述第二开关之间；所述第四开关被配置为耦合所述功率转换系统及发电机。
所述能源网关还包括第五开关，所述第五开关耦合于所述第一开关和所述第二开关之间；所述第五开关被配置为耦合所述功率转换系统及汽车电力输出口。
所述能源网关还包括第六开关，所述第六开关耦合于所述第一开关和所述第二开关之间；所述第六开关被配置为耦合所述功率转换系统及燃料电池。
附图说明
下面将对本申请实施例的描述中所需要使用的附图作简单地介绍。
图1是本申请一实施例中户用储能的多源耦合系统的示意图；
图2是本申请另一实施例中户用储能的多源耦合系统的示意图；
图3是本申请另一实施例中户用储能的多源耦合系统的示意图；
图4是本申请另一实施例中户用储能的多源耦合系统的示意图；
图5是本申请另一实施例中户用储能的多源耦合系统的示意图。
附图标记：
能源网关10，储能系统20，功率转换系统30，电力源40，负载50；
储能模块201，汇流箱202，功率转换模块301，光伏电力源401；
第一开关SW1，第二开关SW2，第三开关SW3，第四开关SW4，第五开
关SW5，第六开关SW6，发电机402，汽车电力输出口403，燃料电池404。
具体实施方式
以下结合附图及实施例，对本申请进行说明。应当理解，此处所描述的实施例仅仅用以解释本申请，并不用于限定本申请。
以下结合附图对本申请的实现进行的描述。
本申请实施例提供一种户用储能的多源耦合系统，如图1所示，户用储能的多源耦合系统包括：能源网关10，被配置为控制不同电力源40的耦合与解耦；储能系统20，与所述能源网关10耦合，被配置为储存电能；功率转换系统30， 与所述能源网关10耦合，被配置为将不同电力源40转换成电流源或者电压源。
户用储能的多源耦合系统，应用于户用储能系统，多个电力源40耦合到户用储能系统中为户用储能系统储能。
能源网关10被配置为控制不同电力源40的耦合与解耦，当电力源40耦合时，能够通过电力源40为储能系统20储存电能。
储能系统20被配置为储存电能，当主电源断开时，通过储能系统20进行供电。
功率转换系统30与能源网关10耦合，不同的电力源40通过功率转换系统30耦合到能源网关10中。功率转换系统30被配置为将电力源40转换为电流源或者电压源，以配合户用储能系统的工作模式。
作为一种可选的实施方式，功率转换系统30被配置为对电力源40进行直流电和交流电的切换，或者通过对交流电电力源进行变压，从而能够更好地为储能系统20工作。
能源网关10的第一端与储能系统20耦合，能源网关10的第二端与功率转换系统30耦合，电力源40通过与功率转换模块301耦合，与能源网关10耦合。如图5所示，能源网关10与负载50耦合，储能系统20为负载50供电。
当储能系统20需要充电时，电力源40耦合到能源网关10中为储能系统20供电。当主电源断开时，则通过储能系统20为负载50供电。
作为一种可选的实施方式，储能系统20能够切换为电压源的工作模式或者电流源的工作模式，当耦合光伏电力源401时，通过光伏电力源401为储能系统20供电，则储能系统20切换为电流源的工作模式。
在本申请实施例中，能源源网关被配置为控制不同电力源40的耦合与解耦，储能系统20与能源网关10耦合，被配置于储存电能，功率转换系统30与能源网关10耦合，被配置为将不同电力源40转换成电流源或者电压源，功率转换系统30包括多个功率转换模块301，每个功率转换模块301耦合一个电力源40，功率转换模块301被配置为将不同的电力源40转换为电流源和电压源，将多个电力源40耦合到储能系统20中，使得不同类型的电力源40耦合到能源网关10时，多个电力源40能够共同工作，为储能装置供电，提高户用储能系统的电力源40耦合效果，提高户用储能系统的使用效果。
如图2所示，所述储能系统20包括至少一个储能模块201，每个储能模块201被配置为储存电能。
如图2所示，所述储能系统20还包括汇流箱202，被配置为对多个储能模 块201的电力进行汇流。
储能系统20至少包括一个储能模块201，每个储能模块201作为一个蓄电单元储存电能。当储能模块201的数量为两个或者两个以上时，储能模块201通过串联或者并联的方式耦合，根据户用储能系统的使用场景，可以增加或减少储能模块201的数量，提高户用储能系统的使用场景和使用灵活性。
储能系统20通过汇流箱202与能源网关10耦合，汇流箱202被配置为对多个储能模块201的电能进行汇流，对电能进行汇流。
在本实施例中，设置多个储能模块201构成储能系统20，并通过汇流箱202对多个储能模块201的电能进行汇流，并且能够根据实际应用增加或者减少储能模块201的数量，提高应用场景的广泛性。
如图3所示，所述功率转换系统30包括多个功率转换模块301，每一个功率转换模块301耦合一个电力源40。
所述功率转换模块301为DC-AC转换模块或者AC-AC转换模块。
功率转换系统30包括至少一个功率转换模块301，每个功率转换模块301耦合一个电力源40。可根据实际使用需求，增加或者减少需要耦合的电力源数量，同时增加或者减少需要耦合的功率转换模块301的数量。
根据电力源40类型不同，功率转换模块301分为DC-AC转换模块或者AC-AC转换模块，当电力源40为电压源时，则电压源耦合AC-AC转换模块；当电力源40为直流电源时，则直流电源耦合DC-AC转换模块。
在本实施例中，通过设置多个功率转换模块301，并且能够灵活增加电力源40的数量，并且通过功率转换模块301对电力源40的工作模式进行转换，使得多个电力源40能够共同耦合到户用储能的多源耦合系统中，提高电力源40耦合到储能系统20中的便利性。
所述功率转换模块301具有锁相功能。
功率转换模块301具有锁相功能，能够为耦合的电力源40提供锁相功能，使得耦合的多个电力源40能够保持相同相位以正常为储能系统20进行供电，并且能够保证电力源40不受损坏。
如图4所示，所述能源网关10包括第一开关SW1、第二开关SW2和第三开关SW3；所述第一开关SW1与所述第二开关SW2耦合；所述第三开关SW3耦合于所述第一开关SW1和所述第二开关SW2之间；所述第一开关SW1被配置为耦合所述功率转换系统30及光伏电力源401；所述第二开关SW2被配置为耦合所述功率转换系统30及负载50；所述第三开关SW3被配置为耦合所述储 能系统20。
在本实施例中，第一开关SW1被配置为耦合功率转换系统30和光伏电力源401，且光伏电力源401通过功率转换模块301与能源网关10耦合，其中，功率转换模块301为AC-AC转换模块。
第二开关SW2被配置为耦合功率转换系统30和负载50，第三开关SW3设置在第一开关SW1和第二开关SW2之间，第三开关SW3与储能系统20耦合。
当第一开关SW1、第三开关SW3闭合、第二开关SW2断开时，通过光伏电力源401为储能系统20充电；当第一开关SW1断开、第二开关SW2和第三开关SW3闭合时，储能系统20为负载50供电。
在本实施例中，通过设置第一开关SW1、第二开关SW2和第三开关SW3时储能系统20的充电过程和供电过程进行控制，提高户用储能系统的使用便利性。
如图5所示，所述能源网关10还包括第四开关SW4，所述第四开关SW4耦合于所述第一开关SW1和所述第二开关SW2之间；所述第四开关SW4被配置为耦合所述功率转换系统30及发电机402。
第四开关SW4与第一开关SW1、第二开关SW2、第三开关SW3耦合，发电机402作为电力源与功率转换系统30耦合并耦合能源网关10。能源网关10通过第四开关SW4与功率转换模块301耦合，功率转换模块301与发电机402耦合。
功率转换模块301为AC-AC转换模块，发电机402为电压源，AC-AC转换模块为发电机402提供锁相功能。
在本实施例中，为发电机402配置第四开关SW4，发电机402通过AC-AC转换模块耦合到能源网关10，通过第四开关SW4控制发电机402的耦合与解耦，能够实现电力源的耦合便利性。
如图5所示，所述能源网关10还包括第五开关SW5，所述第五开关SW5耦合于所述第一开关SW1和所述第二开关SW2之间；所述第五开关SW5被配置为耦合所述功率转换系统30及汽车电力输出口403。
第五开关SW5与第一开关SW1、第二开关SW2、第三开关SW3耦合，与第四开关SW4并联，汽车电力输出口403作为电力源与功率转换系统30耦合并耦合能源网关10。能源网关10通过第五开关SW5与功率转换模块301耦合，功率转换模块301与汽车电力输出口403耦合。
功率转换模块301为AC-AC转换模块，汽车电力输出口403为电压源， AC-AC转换模块为汽车电力输出口403提供锁相功能。
在本实施例中，为汽车电力输出口403配置第五开关SW5，汽车电力输出口403通过AC-AC转换模块耦合到能源网关10，通过第五开关SW5控制汽车电力输出口403的耦合和通断，能够实现电力源40的耦合便利性。
如图5所示，所述能源网关10还包括第六开关SW6，所述第六开关SW6耦合于所述第一开关SW1和所述第二开关SW2之间；所述第六开关SW6被配置为耦合所述功率转换系统30及燃料电池404。
第六开关SW6与第一开关SW1、第二开关SW2、第三开关SW3耦合，与第四开关SW4以及第五开关SW5并联，燃料电池404作为电力源40与功率转换系统30耦合并耦合能源网关10。能源网关10通过第六开关SW6与功率转换模块301耦合，功率转换模块301与燃料电池404耦合。
功率转换模块301为DC-AC转换模块，燃料电池404为直流电源，DC-AC转换模块将直流电转换为交流电。
在本实施例中，为燃料电池404配置第六开关SW6，燃料电池404通过DC-AC转换模块耦合到能源网关10，通过第六开关SW6控制燃料电池404的耦合与解耦，能够实现电力源40的耦合便利性。
为了描述的方便和简洁，仅以上述多个功能单元、模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能单元、模块完成，即将所述装置的内部结构划分成不同的功能单元或模块，以完成以上描述的全部或者部分功能。

Claims (10)

  1. 一种户用储能的多源耦合系统，包括：
    能源网关，被配置为控制不同电力源的耦合与解耦；
    储能系统，与所述能源网关耦合，被配置为储存电能；
    功率转换系统，与所述能源网关耦合，被配置为将所述不同电力源转换成电流源或者电压源。
  2. 根据权利要求1所述的系统，其中，所述储能系统包括至少一个储能模块，所述至少一个储能模块被配置为储存电能。
  3. 根据权利要求2所述的系统，其中，所述储能系统包括多个储能模块，所述储能系统还包括汇流箱，所述汇流箱被配置为对所述多个储能模块的电力进行汇流。
  4. 根据权利要求1所述的系统，其中，所述功率转换系统包括多个功率转换模块，所述多个功率转换模块中的每一个功率转换模块被配置为耦合所述不同电力源中的一个电力源。
  5. 根据权利要求4所述的系统，其中，所述多个功率转换模块中的任一功率转换模块为直流-交流DC-AC转换模块或者交流-直流AC-AC转换模块。
  6. 根据权利要求4所述的系统，其中，所述多个功率转换模块具有锁相功能。
  7. 根据权利要求1至6任一项所述的系统，其中，所述能源网关包括第一开关、第二开关和第三开关；所述第一开关与所述第二开关耦合；所述第三开关耦合于所述第一开关和所述第二开关之间；所述第一开关被配置为耦合所述功率转换系统及光伏电力源；所述第二开关被配置为耦合所述功率转换系统及负载；所述第三开关被配置为耦合所述储能系统。
  8. 根据权利要求7所述的系统，其中，所述能源网关还包括第四开关，所述第四开关耦合于所述第一开关和所述第二开关之间；所述第四开关被配置为耦合所述功率转换系统及发电机。
  9. 根据权利要求7所述的系统，其中，所述能源网关还包括第五开关，所述第五开关耦合于所述第一开关和所述第二开关之间；所述第五开关被配置为耦合所述功率转换系统及汽车电力输出口。
  10. 根据权利要求7所述的系统，其中，所述能源网关还包括第六开关，所述第六开关耦合于所述第一开关和所述第二开关之间；所述第六开关被配置为耦合所述功率转换系统及燃料电池。
PCT/CN2023/085404 2022-06-29 2023-03-31 户用储能的多源耦合系统 WO2024001366A1 (zh)

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