CN111697586A - Plug-and-play household energy router - Google Patents

Plug-and-play household energy router Download PDF

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Publication number
CN111697586A
CN111697586A CN202010430442.5A CN202010430442A CN111697586A CN 111697586 A CN111697586 A CN 111697586A CN 202010430442 A CN202010430442 A CN 202010430442A CN 111697586 A CN111697586 A CN 111697586A
Authority
CN
China
Prior art keywords
port
switch
plug
power
energy router
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.)
Pending
Application number
CN202010430442.5A
Other languages
Chinese (zh)
Inventor
何文志
薛峰
李顺尧
钟荣富
赵树宏
毛智阳
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.)
Guangdong Power Grid Co Ltd
Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
Original Assignee
Guangdong Power Grid Co Ltd
Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
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 Guangdong Power Grid Co Ltd, Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd filed Critical Guangdong Power Grid Co Ltd
Priority to CN202010430442.5A priority Critical patent/CN111697586A/en
Publication of CN111697586A publication Critical patent/CN111697586A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/02Circuit arrangements for ac mains or ac distribution networks using a single network for simultaneous distribution of power at different frequencies; using a single network for simultaneous distribution of ac power and of dc power
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/08Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20The dispersed energy generation being of renewable origin
    • H02J2300/22The renewable source being solar energy
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/60Planning or developing urban green infrastructure

Abstract

The invention discloses a plug-and-play household energy router, which comprises an internal topological wiring structure and an external topological wiring structure, wherein the internal topological structure comprises a multi-port power electronic transformer and a plurality of outgoing switches, and the outgoing switches are connected to wiring ports of the multi-port power electronic transformer; the external topological wiring structure comprises an AC380V power grid and a plurality of source load devices, and the source load devices are connected with the outgoing line switches. The invention integrates the AC/DC power supply, new energy and energy storage technology into a system aiming at the family characteristics, carries out overall research on the family energy router, can simultaneously provide AC and DC output, and effectively combines an AC power supply, the new energy and the energy storage system to provide reliable and economic AC/DC power supply for the family.

Description

Plug-and-play household energy router
Technical Field
The embodiment of the invention relates to the technical field of energy routers, in particular to a plug-and-play household energy router.
Background
Distributed energy such as photovoltaic power generation becomes the development trend of future energy systems, more and more household users install photovoltaic power generation systems, new energy automobiles and rapidly developed direct current charging piles are used as important supplements for cleaning power grids in China, and other direct current power utilization equipment is gradually increased and enters household users, such as direct current air conditioners and direct current IT servers, and the requirements on power supply reliability are more and more strict.
The direct current load is connected to the traditional alternating current distribution network, so that the energy efficiency of the system is seriously reduced. A brand-new household energy router is urgently needed to be designed so as to reduce intermediate links of alternating current-direct current conversion in the household electricity utilization process and improve the economy, reliability and flexibility of power distribution and utilization.
In the aspect of energy router function research, the research on the household energy router is less performed by integrating alternating current and direct current power supply, new energy and energy storage technologies into a system aiming at household characteristics in China. The research on the household energy router is not deep, and the household energy router only stays in the research stage of function expansion and has a certain distance from commercial application.
In the aspect of equipment structure research, domestic and foreign scholars have less research on plug-and-play structures of household energy routers and lack popularization and application bases.
Disclosure of Invention
Therefore, the embodiment of the invention provides a plug-and-play home energy router to solve the problems in the prior art.
In order to achieve the above object, an embodiment of the present invention provides the following:
in one aspect of the invention, a plug-and-play household energy router is provided, which comprises an internal topological wiring structure and an external topological wiring structure, wherein the internal topological structure comprises a multi-port power electronic transformer and a plurality of outgoing switches, and the outgoing switches are connected to wiring ports of the multi-port power electronic transformer;
the external topological wiring structure comprises an AC380V power grid and a plurality of source load devices, and the source load devices are connected with the outgoing line switches.
As a preferable scheme of the invention, the multi-port power electronic transformer further comprises a protection control system, wherein the protection control system is connected with the multi-port power electronic transformer and the outgoing line switch and realizes overvoltage and overcurrent protection.
As a preferred aspect of the present invention, the multi-port power electronic transformer includes four ports, which are an AC380V port, an AC220V port, a DC750 port and a DC24V port.
As a preferable scheme of the present invention, the number of the line switches is 7, the AC380V port is connected to one line switch, the DC750 port is connected to one line switch, the AC220V port is connected to three line switches, and the DC24V port is connected to two line switches.
As a preferable scheme of the invention, the source load equipment comprises a 220V alternating current load, a 220V generator, a 220V photovoltaic power generation system, a 24V direct current load, a 24V storage battery and a 750V direct current charging pile;
the 220V alternating current load is connected to the AC220V port through an incoming switch; the 220V generator is connected to the AC220V port through an incoming switch; the 220V photovoltaic power generation system is connected to the AC220V port through an inlet switch; the 24V direct current load is connected to the DC24V port through an inlet switch; the 24V storage battery is connected to the port of the DC24V through an inlet switch; the 750V direct current charging pile is connected to the DC750 port through an incoming line switch.
As a preferable scheme of the invention, the 220V alternating current load comprises household conventional alternating current electric equipment, including a server and a computer.
As a preferred scheme of the invention, the 220V generator is a natural gas generator, the 220V generator is started when an AC380V power grid is powered off, a 220V AC load is supplied with power through a 220V outgoing switch, a DC charging pile is supplied with power through the outgoing switch, an AC220V port, a multi-port power electronic transformer, a DC750 port and the outgoing switch in sequence, and a 24V DC load is supplied with power through the outgoing switch, an AC220V port-power electronic transformer-a DC24 multi-port 24V port-the outgoing switch.
As a preferred scheme of the invention, the 220V photovoltaic power generation system adopts a self-generating self-using and margin Internet access mode, supplies power to a 220V alternating current load through an outlet switch, and is connected with an AC380V power grid through the outlet switch, an AC220V port, a multiport power electronic transformer, an AC380V port and the outlet switch in sequence to realize margin Internet access.
As a preferable scheme of the invention, the 24V storage battery provides uninterrupted power supply for the 24V dc load at the moment of power failure of the AC380V power grid to ensure the power supply reliability of the 24V dc load, and the 220V generator supplies power after the 220V generator is started.
As a preferable scheme of the invention, the 750V direct current charging pile is a household new energy automobile charging pile.
The embodiment of the invention has the following advantages:
the invention integrates the AC/DC power supply, new energy and energy storage technology into a system aiming at the family characteristics, carries out integral research on the family energy router, can simultaneously provide AC and DC output, and effectively combines an AC power supply, the new energy and an energy storage system to provide reliable and economic AC/DC power supply for the family; the functions of protection, control and the like of the energy router are centralized in the equipment, and the household can use the energy router by directly connecting the source, load and storage connection wires to the external interface of the energy router correspondingly, so that the convenience of plug and play is brought to the household.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
Fig. 1 is a schematic structural diagram of a system provided by the present invention.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides a plug-and-play home energy router, which comprises an internal topology wiring structure and an external topology wiring structure, wherein the internal topology structure comprises a multi-port power electronic transformer and a plurality of outgoing switches, and the outgoing switches are connected to wiring ports of the multi-port power electronic transformer; the external topological wiring structure comprises an AC380V power grid and a plurality of source load devices, and the source load devices are connected with the outgoing line switches.
The protection control system is connected with the multi-port power electronic transformer and the outgoing line switch and is used for realizing overvoltage and overcurrent protection.
The plug-and-play household energy router provided by the invention is supplemented by adding a photovoltaic power generation and battery energy storage system under the condition of conventional household alternating current distribution network access. The multi-port multi-flow power electronic transformer is used as a core conversion component of the system energy router, the outgoing switch and the corresponding protection control system are reasonably configured to realize stable and efficient operation of the system, the power consumption requirements of different loads such as conventional alternating current domestic power consumption and direct current power consumption are met, and the plug-and-play structural design is adopted, so that the change or expansion of power consumption equipment is facilitated.
The transformer is provided with N ports with different voltage grades (N is a natural number and is more than or equal to 2), and the ports in the transformer are electrically connected under a bus bar through an AC/AC, DC/DC or AC/DC converter; each port in the transformer has an energy bidirectional flow function; the outgoing switches are correspondingly connected with the ports of the transformer, the number of the outgoing switches is larger than or equal to the number N of the ports of the transformer, and each port of the transformer corresponds to at least one outgoing switch; each outlet switch is provided with a mechanical button which can be switched on or switched off; the protection control system implements operation protection control on the transformer and the outgoing line switch, and can realize overvoltage and overcurrent protection of each outgoing line.
In the following, a four-port power electronic transformer is taken as an example, and four ports are an AC380V port, an AC220V port, a DC750 port and a DC24V port.
The quantity of service entrance switch is 7, an inlet switch is connected to AC380V port, a service entrance switch is connected to DC750 port, three service entrance switches are connected to AC220V port, two service entrance switches are connected to DC24V end.
The source load equipment comprises a 220V alternating current load, a 220V generator, a 220V photovoltaic power generation system, a 24V direct current load, a 24V storage battery and a 750V direct current charging pile;
the 220V alternating current load is connected to the AC220V port through an incoming switch; the 220V generator is connected to the AC220V port through an incoming switch; the 220V photovoltaic power generation system is connected to the AC220V port through an inlet switch; the 24V direct current load is connected to the DC24V port through an inlet switch; the 24V storage battery is connected to the port of the DC24V through an inlet switch; the 750V direct current charging pile is connected to the DC750 port through an incoming line switch.
Each outlet switch is provided with a mechanical button which can be switched on or switched off; the protection control system implements operation protection control on the transformer and the outgoing line switch, and can realize overvoltage and overcurrent protection of each outgoing line.
The 220V alternating current load comprises household conventional alternating current electric equipment, a server and a computer, and the 750V direct current charging pile is a household new energy automobile charging pile.
The 220V power generator is a natural gas power generator, the 220V power generator is started when an AC380V power grid is in power failure, 220V alternating current loads are supplied with power through a 220V outgoing switch, the direct current charging pile is supplied with power through the outgoing switch, an AC220V port, the multi-port power electronic transformer, the DC750 port and the outgoing switch in sequence, and 24V direct current loads are supplied with power through the outgoing switch, the AC220V port, the multi-port power electronic transformer, the DC24V port and the outgoing switch.
The 220V photovoltaic power generation system adopts a self-generation self-use and surplus Internet access mode, supplies power to a 220V alternating current load through the outlet switch, and is connected with an AC380V power grid through the outlet switch, an AC220V port, a multi-port power electronic transformer, an AC380V port and the outlet switch in sequence to realize surplus Internet access.
The 24V storage battery provides uninterrupted power supply for the 24V direct current load at the moment of power failure of the AC380V power grid, power supply reliability of the 24V direct current load is guaranteed, and after the 220V generator is started, the 220V generator supplies power.
Each outgoing switch of the plug-and-play household energy router provided by the invention is provided with an interface outside the router equipment, so that the system equipment with an external topological structure can be conveniently connected with the energy router.
The invention integrates the AC/DC power supply, new energy and energy storage technology into a system aiming at the family characteristics, carries out integral research on the family energy router, can simultaneously provide AC and DC output, and effectively combines an AC power supply, the new energy and an energy storage system to provide reliable and economic AC/DC power supply for the family; the functions of protection, control and the like of the energy router are centralized in the equipment, and the household can use the energy router by directly connecting the source, load and storage connection wires to the external interface of the energy router correspondingly, so that the convenience of plug and play is brought to the household.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (10)

1. A plug-and-play household energy router is characterized by comprising an internal topological wiring structure and an external topological wiring structure, wherein the internal topological structure comprises a multi-port power electronic transformer and a plurality of outgoing line switches, and the outgoing line switches are connected to wiring ports of the multi-port power electronic transformer;
the external topological wiring structure comprises an AC380V power grid and a plurality of source load devices, and the source load devices are connected with the outgoing line switches.
2. The plug-and-play home energy router of claim 1, further comprising a protection control system, said protection control system being connected to said multiport power electronic transformer and said outgoing line switch and implementing overvoltage, overcurrent protection.
3. The plug-and-play home energy router of claim 1, wherein said multi-port power electronic transformer comprises four ports, AC380V, AC220V, DC750 and DC24V ports respectively.
4. The plug-and-play home energy router of claim 3, wherein the number of service switches is 7, one service switch is connected to the AC380V port, one service switch is connected to the DC750 port, three service switches are connected to the AC220V port, and two service switches are connected to the DC24V port.
5. The plug-and-play home energy router of claim 4, wherein the source load devices comprise 220V AC loads, 220V generators, 220V photovoltaic power systems, 24V DC loads, 24V batteries, and 750V DC charging poles;
the 220V alternating current load is connected to the AC220V port through an incoming switch; the 220V generator is connected to the AC220V port through an incoming switch; the 220V photovoltaic power generation system is connected to the AC220V port through an inlet switch; the 24V direct current load is connected to the DC24V port through an inlet switch; the 24V storage battery is connected to the port of the DC24V through an inlet switch; the 750V direct current charging pile is connected to the DC750 port through an incoming line switch.
6. The plug-and-play home energy router of claim 5, wherein said 220V AC load comprises home regular AC consumers, including servers, computers.
7. The plug-and-play household energy router of claim 5, wherein the 220V generator is a natural gas generator, the 220V generator is started when an AC380V power grid is powered off, a 220V alternating current load is supplied through a 220V outgoing switch, a direct current charging pile is supplied through the outgoing switch, an AC220V port, the multi-port power electronic transformer, the DC750 port and the outgoing switch in sequence, and a 24V direct current load is supplied through the outgoing switch, the AC220V port-the multi-port power electronic transformer-the DC24V port-the outgoing switch.
8. The plug-and-play household energy router of claim 5, wherein the 220V photovoltaic power generation system adopts a self-generating self-use and margin Internet access mode, supplies power to a 220V alternating current load through an outlet switch, and is connected with an AC380V power grid through the outlet switch, an AC220V port, a multiport power electronic transformer-AC 380V port and the outlet switch in sequence to realize margin Internet access.
9. The plug-and-play household energy router of claim 5, wherein the 24V storage battery provides uninterrupted power supply for the 24V DC load at the moment of power failure of the AC380V power grid to ensure the power supply reliability of the 24V DC load, and the 220V generator supplies power after the 220V generator is started.
10. The plug-and-play household energy router of claim 5, wherein the 750V DC charging pile is a household new energy automobile charging pile.
CN202010430442.5A 2020-05-20 2020-05-20 Plug-and-play household energy router Pending CN111697586A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010430442.5A CN111697586A (en) 2020-05-20 2020-05-20 Plug-and-play household energy router

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Application Number Priority Date Filing Date Title
CN202010430442.5A CN111697586A (en) 2020-05-20 2020-05-20 Plug-and-play household energy router

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115473231A (en) * 2022-11-02 2022-12-13 南京国信能源有限公司 Alternating-current micro-grid system based on energy router and medium-voltage wind and light storage charging station

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020000793A1 (en) * 2000-06-30 2002-01-03 Shigeto Hanaki Electric power supply system
CN106253268A (en) * 2016-08-11 2016-12-21 国网江西省电力公司电力科学研究院 Based on many power supplys multi-voltage grade load domestic intelligent energy router device
CN106356853A (en) * 2016-10-26 2017-01-25 广东工业大学 Domestic energy source router and operation method thereof
CN106602564A (en) * 2017-01-18 2017-04-26 国家电网公司 Energy router used for household power distribution system
CN107749642A (en) * 2017-11-12 2018-03-02 国网江西省电力有限公司电力科学研究院 A kind of household energy router

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020000793A1 (en) * 2000-06-30 2002-01-03 Shigeto Hanaki Electric power supply system
CN106253268A (en) * 2016-08-11 2016-12-21 国网江西省电力公司电力科学研究院 Based on many power supplys multi-voltage grade load domestic intelligent energy router device
CN106356853A (en) * 2016-10-26 2017-01-25 广东工业大学 Domestic energy source router and operation method thereof
CN106602564A (en) * 2017-01-18 2017-04-26 国家电网公司 Energy router used for household power distribution system
CN107749642A (en) * 2017-11-12 2018-03-02 国网江西省电力有限公司电力科学研究院 A kind of household energy router

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115473231A (en) * 2022-11-02 2022-12-13 南京国信能源有限公司 Alternating-current micro-grid system based on energy router and medium-voltage wind and light storage charging station

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Application publication date: 20200922