CN203423531U - Photoelectric building micro electrical network management system - Google Patents

Photoelectric building micro electrical network management system Download PDF

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Publication number
CN203423531U
CN203423531U CN201320546945.4U CN201320546945U CN203423531U CN 203423531 U CN203423531 U CN 203423531U CN 201320546945 U CN201320546945 U CN 201320546945U CN 203423531 U CN203423531 U CN 203423531U
Authority
CN
China
Prior art keywords
electrical network
micro electrical
management system
micro
energy storage
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.)
Expired - Fee Related
Application number
CN201320546945.4U
Other languages
Chinese (zh)
Inventor
王盛平
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.)
Xiamen new energy Limited by Share Ltd DoCoMo
Original Assignee
Xiamen Duokemo Solar Energy Technology 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 Xiamen Duokemo Solar Energy Technology Co Ltd filed Critical Xiamen Duokemo Solar Energy Technology Co Ltd
Priority to CN201320546945.4U priority Critical patent/CN203423531U/en
Application granted granted Critical
Publication of CN203423531U publication Critical patent/CN203423531U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • 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
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • 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

Abstract

The utility model relates to a photoelectric building micro electrical network management system. The photoelectric building micro electrical network management system comprises a solar photovoltaic array and is characterized in that a bidirectional inverter is arranged between a load and a commercial power electrical network, a grid connected inverter connected with the solar photovoltaic array is connected in parallel with an output end of the bidirectional inverter, and the bidirectional inverter is further connected with an energy storage device. The photoelectric building micro electrical network management system is an integrated photovoltaic, energy storage and commercial power energy optimization management system which realizes cyclic utilization, and has two operation modes, under normal circumstances, the photoelectric building micro electrical network management system is linked with the commercial power electrical network to operate, a micro electrical network and the commercial power electrical network cooperatively operate to commonly provide power for loads in the micro electrical network; when the commercial power electrical network is detected to be in fault, or when electrical energy quality can not meet requirements, the micro electrical network is converted into an island operation mode, an energy storage device in the micro electrical network continuously provides power for crucial loads in the micro electrical network, uninterrupted electric power supply for the loads is guaranteed, self supply and demand energy balance of the micro electrical network is maintained, and thereby security and reliability of power supply are improved, and smooth switching between the two modes is realized.

Description

Photoelectricity is built micro-grid management systems
Technical field
The utility model relates to a kind of photoelectricity and builds micro-grid management systems.
Background technology
Existing photovoltaic square formation or single being only connected with combining inverter, like this, while being connected with utility grid is grid-connected, once civil power stop power supply, load cisco unity malfunction; Or single is connected with energy storage device, like this, when photovoltaic square formation connects from net, by energy storage device, to be powered, proof load normally moves; Because capacity of energy storing device is limited, when energy storage device is full of, can not continue charging, waste daytime, good illumination condition, can not utilize solar energy to greatest extent; When the continuous rainy weather long period, energy storage device electric weight deficiency also can cause the power-off to load.
Summary of the invention
The purpose of this utility model, to provide a kind of photoelectricity to build micro-grid management systems, photovoltaic square formation is not only connected with combining inverter, also be connected with energy storage device simultaneously, maximally utilise solar energy, sent out i.e. use, when civil power stops, the power supply of automatic switchover energy storage device, i.e. the uninterrupted supply of electric power of proof load.
The utility model is to realize like this, described photoelectricity is built micro-grid management systems, it comprises photovoltaic square formation, between load and utility grid, establish two-way inverter, the combining inverter being connected with photovoltaic square formation is connected in parallel on the output of two-way inverter, and two-way inverter is also connected with energy storage device.
The beneficial effects of the utility model are, it is integrated photovoltaic, energy storage, the electrical integrated energy-optimised management system recycling in city, there are two kinds of operational modes in it, under normal circumstances, with utility grid networking operation, micro-electrical network and utility grid coordinated operation, give load supplying in micro-electrical network jointly; When monitoring utility grid fault or the quality of power supply and can not meet the demands, micro-electrical network proceeds to islet operation pattern, by the energy storage device in micro-electrical network, continue power supply to critical loads in micro-electrical network, the uninterrupted supply of electric power of proof load, maintain micro-electrical network self supply and demand energy balance, thereby improved the safety and reliability of power supply; Until utility grid fault, disappear or when the quality of power supply meets the demands, micro-electrical network is switched to networking operation pattern again.Control system need to realize taking over seamlessly between two kinds of patterns according to the variation of actual motion condition.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram.
In figure: 1. combining inverter, 2. two-way inverter, 3. energy storage device.
Embodiment
Photoelectricity described in the utility model is built micro-grid management systems, as shown in Figure 1, photoelectricity is built micro-grid management systems, it comprises photovoltaic square formation, between load and utility grid, establish two-way inverter 2, the combining inverter 1 being connected with photovoltaic square formation is connected in parallel on the output of two-way inverter 2, and two-way inverter 2 is also connected with energy storage device.
The utility model is on the basis of photovoltaic power station power generation, mains supply and load, suitably configure energy storage device, make photovoltaic generation, mains supply, energy storage device, load form an independently network system, and it is carried out to intelligent management, thereby the electric energy that reaches photovoltaic plant is not wasted.
The utlity model has feeding function, utility grid exists, and the generating of photovoltaic square formation is meeting loading demand, when storage battery is full of simultaneously, can pass through the built-in relay switch of two-way inverter, by unnecessary energy back to electrical network.
The utlity model has standby functions, when utility grid disconnects, the built-in relay switch of two-way inverter can be opened automatically.The electrical network that two-way inverter can be exported oneself substitutes utility grid, and the combining inverter of photovoltaic square formation can work on, and only in this way, just may provide stand-by power supply to energy storage device charging and for load.
The utlity model has off-grid system shift frequency controls: if islanded system (there is no civil power), two-way inverter is by changing the frequency of its output electrical network, and the output of management combining inverter, avoids accumulator super-charge.
All unit of system described in the utility model are all connected in parallel at interchange end, exchange and connect the photovoltaic square formation of pattern, and its combining inverter is connected in parallel on two-way inverter output end.When two-way inverter AC IN connects public electric wire net, built-in relay switch can auto-closing.Two-way inverter stops the electrical network of output oneself, and is operated in AC charger pattern (current source).

Claims (1)

1. photoelectricity is built micro-grid management systems, it comprises photovoltaic square formation, it is characterized in that: between load and utility grid, establish two-way inverter, the combining inverter being connected with photovoltaic square formation is connected in parallel on the output of two-way inverter, and two-way inverter is also connected with energy storage device.
CN201320546945.4U 2013-09-04 2013-09-04 Photoelectric building micro electrical network management system Expired - Fee Related CN203423531U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320546945.4U CN203423531U (en) 2013-09-04 2013-09-04 Photoelectric building micro electrical network management system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320546945.4U CN203423531U (en) 2013-09-04 2013-09-04 Photoelectric building micro electrical network management system

Publications (1)

Publication Number Publication Date
CN203423531U true CN203423531U (en) 2014-02-05

Family

ID=50022620

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320546945.4U Expired - Fee Related CN203423531U (en) 2013-09-04 2013-09-04 Photoelectric building micro electrical network management system

Country Status (1)

Country Link
CN (1) CN203423531U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104009478A (en) * 2014-06-11 2014-08-27 东南大学 Voltage stabilization system applied to new energy power generation and electric vehicle battery replacement station and control method of voltage stabilization system
WO2015180514A1 (en) * 2014-05-28 2015-12-03 华为技术有限公司 Commercial power supply method and device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015180514A1 (en) * 2014-05-28 2015-12-03 华为技术有限公司 Commercial power supply method and device
CN104009478A (en) * 2014-06-11 2014-08-27 东南大学 Voltage stabilization system applied to new energy power generation and electric vehicle battery replacement station and control method of voltage stabilization system

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: Jimei District of Xiamen City, Fujian province 361000 Hou Xi Shi Xing Lu Industrial Zone No. 326

Patentee after: Xiamen new energy Limited by Share Ltd DoCoMo

Address before: Jimei District of Xiamen City, Fujian province 361000 Hou Xi Shi Xing Lu Industrial Zone No. 326

Patentee before: Xiamen Duokemo Solar Energy Technology Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140205

Termination date: 20190904

CF01 Termination of patent right due to non-payment of annual fee