CN108011375A - New special photovoltaic step-up transformer - Google Patents

New special photovoltaic step-up transformer Download PDF

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Publication number
CN108011375A
CN108011375A CN201610946892.3A CN201610946892A CN108011375A CN 108011375 A CN108011375 A CN 108011375A CN 201610946892 A CN201610946892 A CN 201610946892A CN 108011375 A CN108011375 A CN 108011375A
Authority
CN
China
Prior art keywords
transformer
intelligent
voltage
power
load switch
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
CN201610946892.3A
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Chinese (zh)
Inventor
姜建华
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.)
Nantong Hawaii Electric Co Ltd
Original Assignee
Nantong Hawaii Electric 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 Nantong Hawaii Electric Co Ltd filed Critical Nantong Hawaii Electric Co Ltd
Priority to CN201610946892.3A priority Critical patent/CN108011375A/en
Publication of CN108011375A publication Critical patent/CN108011375A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • H02J3/12Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225Demand response systems, e.g. load shedding, peak shaving
    • 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20End-user application control systems
    • Y04S20/222Demand response systems, e.g. load shedding, peak shaving

Abstract

The invention discloses a kind of new special photovoltaic step-up transformer, its intelligent automatic switching for including transformer body and being wholely set with transformer body switchs, and intelligent automatic switching switch includes fuse, voltage transformer, power transformer, intelligent load switch and intelligent control box;Voltage transformer is used for automatic detection grid side voltage and Generation Side voltage, and send divide-shut brake order to intelligent load switch by the intelligent controller in intelligent control box in real time;Power transformer is connected with power grid, it is used to provide uninterrupted control power supply for intelligent load switch and emergence power and basic electricity are provided after transformer body is cut off by intelligent load switch.The present invention solves existing step-up transformer when photovoltaic plant cannot drive inverter startup since illumination deficiency generates electricity, the problem of the electric energy of power grid will be consumed for a long time with electric loading as one, so as to reduce the cost of electricity-generating of owner, avoid causing national energy unnecessary loss.

Description

New special photovoltaic step-up transformer
Technical field
The present invention relates to a kind of new special photovoltaic step-up transformer.
Background technology
In currently available technology, for pair in photovoltaic arrays by the low-voltage rise of inverter inversion into 10KV or 35KV Transformer with split winding has two kinds.One kind is dry-type transformer, and one kind is oil-immersed transformer.Both transformers all there are one very The defects of big:When photovoltaic plant cannot drive inverter startup since illumination deficiency generates electricity (i.e.:Photovoltaic plant, which generates electricity, to be reached Less than grid-connected requirement), both step-up transformers will consume the electric energy of power grid for a long time as one with electric loading.And for During the per day power generation of photovoltaic plant it is a length of 4 it is small when or so, so for the step-up transformer in photovoltaic arrays to the most of the time It is as electricity consumption load consumption power grid electric energy.The cost of small aspect increase power generation invisible for owner, big side It is a kind of big energy loss to face country.
The content of the invention
A kind of the defects of the technical problem to be solved in the present invention is the prior art is overcome, there is provided new special photovoltaic boosting Transformer.
In order to solve the above technical problem, the present invention provides following technical solution:
A kind of new special photovoltaic step-up transformer of the present invention, it include transformer body and with transformer body one The intelligent automatic switching switch that body is set, the intelligence automatic switching switch include fuse, voltage transformer, power supply transformation Device, intelligent load switch and intelligent control box;The voltage transformer is used for automatic detection grid side voltage and Generation Side in real time Voltage, and divide-shut brake order is sent to the intelligent load switch by the intelligent controller in the intelligent control box;It is described Power transformer is connected with power grid, it is used to provide uninterrupted control power supply and in transformer sheet for the intelligent load switch Body provides emergence power and basic electricity after being cut off by the intelligent load switch.
Further, the fuse is pluggable type fuse protector, with novel photovoltaic step-up transformer one.It is protected well Intelligent projection switch is protected.
Further, the fuse, voltage transformer, power transformer, intelligent load switch and intelligent control box are equal Using oil-insulation.
The beneficial effect that is reached of the present invention is:
Product of the present invention solve existing step-up transformer when photovoltaic plant by illumination deficiency generate electricity cannot drive it is inverse When change device starts (:Photovoltaic plant, which generates electricity, does not reach grid-connected requirement), existing step-up transformer will use electric loading as one The problem of the electric energy of prolonged consumption power grid, so as to reduce the cost of electricity-generating of owner, it is unnecessary to avoid causing national energy Loss.Product of the present invention is highly integrated, in-site installation short construction period;The intelligent automatic switching switch and transformer of the present invention One, is reached all components and conventional air insulation is substituted with oil-insulation, so that achieve the purpose that to reduce occupation area of equipment. The present invention's carries voltage transformer and can detect grid side voltage and photovoltaic generation side voltage in real time automatically, passes through intelligent control box Interior intelligent controller sends divide-shut brake order to switch, generates electricity and cannot drive since illumination is insufficient so as to fulfill when photovoltaic plant When making inverter startup (i.e.:Photovoltaic plant, which generates electricity, does not reach grid-connected requirement), on-load switch rapidly and accurately disconnecting transformer Part;The self-powered transformer of the present invention is connected with power grid always, is not only provided uninterrupted control power supply for switch but also is being risen Pressure transformer provides the emergence powers such as illumination, socket after being switched on and off cut-out.
The present invention is by using above-mentioned new special photovoltaic step-up transformer, because employing Intelligent projection switch, The function of conventional step-up transformer can be realized well and is met when photovoltaic plant since illumination deficiency generates electricity and cannot drive When making inverter startup, good disconnecting transformer is so as to have the function that energy-saving and emission-reduction, save cost of electricity-generating;The present invention is all Component using oil-insulation and highly integrated, makes the new special photovoltaic step-up transformer meet the situation of all functions Under accomplish shape minimum, so not only reduced quantities but also reduced the floor space of equipment.
Brief description of the drawings
Attached drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention Apply example to be used to explain the present invention together, be not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structure diagram of the present invention.
Embodiment
The preferred embodiment of the present invention is illustrated below in conjunction with attached drawing, it will be appreciated that described herein preferred real Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, a kind of new special photovoltaic step-up transformer of the present invention, it include transformer body 1 and with The intelligent automatic switching switch that transformer body 1 is wholely set, it is mutual that the intelligence automatic switching switch includes fuse 2, voltage Sensor 3, power transformer 4, intelligent load switch 5 and intelligent control box;The voltage transformer 3 is used for automatic detection electricity in real time Voltage on line side and Generation Side voltage, and sent out by the intelligent controller in the intelligent control box to the intelligent load switch 5 Go out divide-shut brake order;The power transformer 4 is connected with power grid, it is used to provide uninterrupted control for the intelligent load switch 5 Power supply processed and offer emergence power and basic electricity after transformer body 1 is cut off by the intelligent load switch 5.It is described molten Disconnected device 2 is pluggable type fuse protector.The fuse 2, voltage transformer 3, power transformer 4, intelligent load open 5 passes and intelligence control Case processed uses oil-insulation.
Product of the present invention solve existing step-up transformer when photovoltaic plant by illumination deficiency generate electricity cannot drive it is inverse When change device starts (:Photovoltaic plant, which generates electricity, does not reach grid-connected requirement), existing step-up transformer will use electric loading as one The problem of the electric energy of prolonged consumption power grid, so as to reduce the cost of electricity-generating of owner, it is unnecessary to avoid causing national energy Loss.Product of the present invention is highly integrated, in-site installation short construction period;The intelligent automatic switching switch and transformer of the present invention One, is reached all components and conventional air insulation is substituted with oil-insulation, so that achieve the purpose that to reduce occupation area of equipment. The present invention's carries voltage transformer and can detect grid side voltage and photovoltaic generation side voltage in real time automatically, passes through intelligent control box Interior intelligent controller sends divide-shut brake order to switch, generates electricity and cannot drive since illumination is insufficient so as to fulfill when photovoltaic plant When making inverter startup (i.e.:Photovoltaic plant, which generates electricity, does not reach grid-connected requirement), on-load switch rapidly and accurately disconnecting transformer Part;The self-powered transformer of the present invention is connected with power grid always, is not only provided uninterrupted control power supply for switch but also is being risen Pressure transformer provides the emergence powers such as illumination, socket after being switched on and off cut-out.
The present invention is by using above-mentioned new special photovoltaic step-up transformer, because employing Intelligent projection switch, The function of conventional step-up transformer can be realized well and is met when photovoltaic plant since illumination deficiency generates electricity and cannot drive When making inverter startup, good disconnecting transformer is so as to have the function that energy-saving and emission-reduction, save cost of electricity-generating;The present invention is all Component using oil-insulation and highly integrated, makes the new special photovoltaic step-up transformer meet the situation of all functions Under accomplish shape minimum, so not only reduced quantities but also reduced the floor space of equipment.
Finally it should be noted that:The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used To modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic. Within the spirit and principles of the invention, any modification, equivalent replacement, improvement and so on, should be included in the present invention's Within protection domain.

Claims (1)

1. a kind of new special photovoltaic step-up transformer, it is characterised in that including transformer body and and transformer body The intelligent automatic switching switch being wholely set, the intelligence automatic switching switch include fuse, voltage transformer, power supply transformation Device, intelligent load switch and intelligent control box;The voltage transformer is used for automatic detection grid side voltage and Generation Side in real time Voltage, and divide-shut brake order is sent to the intelligent load switch by the intelligent controller in the intelligent control box;It is described Power transformer is connected with power grid, it is used to provide uninterrupted control power supply and in transformer sheet for the intelligent load switch Body provides emergence power and basic electricity after being cut off by the intelligent load switch;The fuse is pluggable type fuse protector;Institute State fuse, voltage transformer, power transformer, intelligent load switch and intelligent control box and use oil-insulation.
CN201610946892.3A 2016-11-02 2016-11-02 New special photovoltaic step-up transformer Pending CN108011375A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610946892.3A CN108011375A (en) 2016-11-02 2016-11-02 New special photovoltaic step-up transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610946892.3A CN108011375A (en) 2016-11-02 2016-11-02 New special photovoltaic step-up transformer

Publications (1)

Publication Number Publication Date
CN108011375A true CN108011375A (en) 2018-05-08

Family

ID=62048123

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610946892.3A Pending CN108011375A (en) 2016-11-02 2016-11-02 New special photovoltaic step-up transformer

Country Status (1)

Country Link
CN (1) CN108011375A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2845253Y (en) * 2005-12-05 2006-12-06 山东达驰电气股份有限公司 Double loop power supply automatic switchover formula combined transformer
CN103872752A (en) * 2014-03-10 2014-06-18 中国能源建设集团广东省电力设计研究院 Power supply system of transformer substation
CN104767140A (en) * 2015-04-24 2015-07-08 河北高晶电器设备有限公司 Intelligent on-load capacity regulating and voltage regulating box-type substation
WO2016140034A1 (en) * 2015-03-03 2016-09-09 株式会社日立製作所 Voltage regulation device and voltage regulation method for power distribution grid

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2845253Y (en) * 2005-12-05 2006-12-06 山东达驰电气股份有限公司 Double loop power supply automatic switchover formula combined transformer
CN103872752A (en) * 2014-03-10 2014-06-18 中国能源建设集团广东省电力设计研究院 Power supply system of transformer substation
WO2016140034A1 (en) * 2015-03-03 2016-09-09 株式会社日立製作所 Voltage regulation device and voltage regulation method for power distribution grid
CN104767140A (en) * 2015-04-24 2015-07-08 河北高晶电器设备有限公司 Intelligent on-load capacity regulating and voltage regulating box-type substation

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Application publication date: 20180508