CN105826945A - Intelligent photovoltaic power generation grid-connected metering device - Google Patents
Intelligent photovoltaic power generation grid-connected metering device Download PDFInfo
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- CN105826945A CN105826945A CN201610283927.XA CN201610283927A CN105826945A CN 105826945 A CN105826945 A CN 105826945A CN 201610283927 A CN201610283927 A CN 201610283927A CN 105826945 A CN105826945 A CN 105826945A
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- 238000010248 power generation Methods 0.000 title abstract description 5
- 230000001012 protector Effects 0.000 claims abstract description 35
- 238000002955 isolation Methods 0.000 claims abstract description 34
- 230000005611 electricity Effects 0.000 claims abstract description 27
- 238000005259 measurement Methods 0.000 claims description 37
- 230000009471 action Effects 0.000 claims description 14
- 230000006698 induction Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 abstract 2
- 238000013461 design Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000032683 aging Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
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- H02J3/383—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
- H02B1/48—Mounting of devices therein
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
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Abstract
The invention discloses an intelligent photovoltaic power generation grid-connected metering device, including a box body, and a surge protector, a wire inlet switch, a meter, a collector, a wire outlet disconnector, a wire inlet side mutual inductor, a wire outlet side mutual inductor and an indication module. Current of a photovoltaic module passes through an inverter and is input to the box body, sequentially passes through the wire inlet side mutual inductor, the surge protector, the wire inlet switch, the meter, the wire outlet isolation discontenting link and the wire outlet side mutual inductor and is output to a power grid-connected system or user, and the collector is connected with the meter. The indication module is used for indicating whether a current difference exists between the wire inlet side mutual inductor and the wire outlet side mutual inductor. The intelligent photovoltaic power generation grid-connected metering device provided by the invention installs a plurality of components in the box body in a combined manner, specifications are unified, and a wiring mode is reliable; and in addition, the intelligent photovoltaic power generation grid-connected metering device has the characteristics of thunder and lightning prevention, electricity larceny prevention, high overhaul safety, free adjustability of diameters of a wire inlet and a wire outlet and the like.
Description
Technical field
The present invention relates to a kind of Intelligent photovoltaic electricity generation grid-connecting metering device, belong to technical field of electric power.
Background technology
Along with global warming, national environmental consciousness is obviously improved, and energy-saving and emission-reduction, the cry developing new forms of energy are more and more higher.Photovoltaic generation limits the advantages such as little, the construction period is short, noiselessness non-pollution discharge and is well received by the public by its region.Photovoltaic generation industry, develops rapidly like the mushrooms after rain, only 2015, and whole nation photovoltaic installed capacity increases 16600MW, increases by 29.7% on a year-on-year basis.Improve photovoltaic power generation grid-connecting service level, promote that photovoltaic generation is fast-developing, it has also become power supply one important process of good service.
At present in photovoltaic parallel in system, it is primarily present problems with:
(1) electrification component is arranged in Roof of the house, is easily struck by lightning；Lightning Over-voltage may invade proximal subscribers and public electric wire net by grid-connected system；
(2) photovoltaic generating system easily causes " isolated island " effect, brings potential safety hazard for controller switching equipment maintenance；
(3) Internet user's grid-connected system in full is directly accessed public electric wire net, and the assembly such as PV cells inverter, cable is positioned at user indoor, and stealing risk is big；
(4) as an important ring of photovoltaic parallel in system, grid-connected batch meter is not at present because having unified specification, and device type and the mode of connection of use are multifarious, there is a lot of hidden danger in terms of security reliability, is unfavorable for accelerating the grid-connected access of user yet.
In view of this, this is studied by the present inventor, develops a kind of Intelligent photovoltaic electricity generation grid-connecting metering device specially, and this case thus produces.
Summary of the invention
It is an object of the invention to provide a kind of Intelligent photovoltaic electricity generation grid-connecting metering device, the combination of multiple components and parts be arranged in casing, uniform specification, the mode of connection is reliable；The feature such as have that thunder-lightning, anti-electricity-theft, maintenance safety be high, the bore of incoming line and line outlet is freely adjustable.
To achieve these goals, the solution of the present invention is:
Intelligent photovoltaic electricity generation grid-connecting metering device; including casing; and Surge Protector, service entrance switch, measurement meter, harvester, outlet isolation plug-in strip, inlet wire side transformer, outgoing line side transformer and the indicating module being arranged in casing; the electric current of photovoltaic module is input in casing after inverter, and after sequentially passing through inlet wire side transformer, Surge Protector, service entrance switch, measurement meter, outlet isolation plug-in strip and outgoing line side transformer, output is to electrical network grid-connected system or user；Described harvester is connected with measurement meter, is used for gathering energy data.Described indicating module is connected with inlet wire side transformer, outgoing line side transformer respectively, is used for indicating whether inlet wire side transformer, outgoing line side transformer exist difference between current.
As preferably, described indicating module is LED light, and two pins of described display lamp are connected with inlet wire side transformer, outgoing line side transformer respectively, when the faradic current of inlet wire side transformer, outgoing line side transformer is consistent, display lamp two ends no-voltage is poor, and lamp does not works；When inlet wire side transformer, outgoing line side transformer induced electric current difference, display lamp two ends can produce voltage difference, and lamp is bright.By the on and off of display lamp, can reflect whether there is shunting between inlet wire side and outgoing line side, i.e. in casing, whether have electricity filching behavior to occur.
As preferably, it is further provided with control module in described casing, described control module respectively with measurement meter, harvester, service entrance switch, outlet isolation plug-in strip, inlet wire side transformer, outgoing line side transformer is connected with indicating module, the relevant electrical energy parameter of measurement meter, the switching signal of service entrance switch, the switching signal of outlet isolation plug-in strip all flows to harvester by control module, it is sent to external device again by harvester, inlet wire side transformer, the current information collected is sent to control module by outgoing line side transformer, after control module processes by analysis, pointed out by indicating module.
As preferably; described casing uses anti-flaming ABS material, and inside is divided into 3 cabins, is respectively and installs measurement meter and the table meter storehouse of harvester; Surge Protector, service entrance switch, the inlet wire storehouse of inlet wire side transformer are installed, and outlet isolation plug-in strip, the outlet storehouse of outgoing line side transformer are installed.Use the casing made of anti-flaming ABS material, there is good flame-resistant insulation, anti creepage trace, aging resistance, UV resistant irradiate, it is waterproof to seal and the advantage such as mechanical strength.
As preferably, described casing is provided with transparent case lid, it is simple to each components and parts state in inspection box body.
As preferably, position corresponding to described case lid and inlet wire storehouse, outlet storehouse is further provided with independent inlet wire Cang Gai and outlet Cang Gai, described inlet wire Cang Gai, outlet Cang Gai one end is all articulated on case lid, and the other end is fixed on case lid by seal；The position that case lid isolates plug-in strip corresponding with Surge Protector, service entrance switch, outlet all offers action window; and described action window only exposes Surge Protector, service entrance switch, the manual pushing position of outlet isolation plug-in strip, Surge Protector, service entrance switch, the wiring pile of outlet isolation plug-in strip and screw are all hidden in case lid.The setting of action window, staff only need to individually open inlet wire Cang Gai and/or outlet Cang Gai, it is possible to is stirred the switching device in cabin by action window, need not open whole case lid.
As preferably, described case lid and measurement meter, the position that harvester button is corresponding are respectively equipped with measurement meter removable cover and harvester removable cover, described measurement meter removable cover and harvester removable cover one end and are articulated on case lid, and the other end is connected on case lid.By respective removable cover, measurement meter, harvester can be operated by staff accordingly.
As preferably, it is respectively equipped with incoming line and line outlet on described inlet wire storehouse and outlet storehouse, input and output for electric current, wherein, described incoming line and line outlet all include that the box body wall inside heavy caliber end and small-caliber end, incoming line and line outlet is provided with moveable baffle plate, and described baffle plate is provided with arc port, by the movement of baffle plate arc port, adjust incoming line and the size of line outlet.
As preferably, described incoming line includes heavy caliber end and small-caliber end, box body wall inside incoming line is provided with 1 piece of moveable baffle plate, and described baffle plate is provided with sliding tray and the arc port of strip, according to the size of cable bore, select the installation direction of baffle plate, when cable is thinner, baffle plate arc port is screwed onto on box body wall after sliding tray towards small-caliber end, nut, slide damper, adjusts the caliber size of incoming line；Otherwise, when cable is thicker, baffle plate arc port, towards heavy caliber end, slide damper, adjusts the caliber size of incoming line.Baffle plate arc port can form bigger incoming line with heavy caliber end, the incoming line less with small-caliber end composition.Described line outlet is consistent with incoming line structure.
As preferably, described casing and case lid coordinating by buckle, mutually install, being fixed further by seal, the edge that described casing contacts with case lid is provided with several induction apparatus simultaneously, and induction apparatus is connected with control module, when case lid leaves casing, corresponding induced signal is sent to control module by induction apparatus, and control module is sent to external device by harvester, it is achieved alarm.
Intelligent photovoltaic electricity generation grid-connecting metering device of the present invention has following several advantage:
(1) integrated design: the combination of multiple components and parts being arranged in casing, uniform specification, the mode of connection is reliable；
(2) thunder-lightning design: Surge Protector is installed in end of incoming cables, effectively protection Lightning Over-voltage invades；
(3) maintenance safety design: leading-out terminal is installed to be had obvious cut-off point and possesses the isolation plug-in strip of anti-misdelivery blocking function, meets distribution net equipment maintenance safety requirement；
(4) anti-electricity-theft design: case lid and each hatch cover can be sealed up by seal；Wiring pile and the thread part of internal each element are all sealed in case lid, use closed design, prevent from privately connecing electricity；There is shunting stealing display lamp simultaneously, when utilizing stealing, line current must shunt the principle causing line electric current inconsistent, import and export at casing and each fill a shape small size current mutual inductor and with " difference between current " martingale, and concatenate a display lamp in the loop, when memory box is at stealing electricity phenomenon, difference current makes display lamp shinny warn (brightness changes) with stealing electric current；
(5) incoming line, line outlet Activities Design: incoming line, line outlet size can be adjusted according to cable diameter and be fixed from inside, change the drawback that conventional metered dose case cable import size is fixed, clearance spaces is bigger after threading, the most anti-toy enters, and the most effectively takes precautions against user's threading privately；
(6) Intelligent Information Processing function: realize uncap information, grid-connected switching-state information, inverter duty etc. of case lid by control module and sample, process, transmit and remote monitoring function.
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the Intelligent photovoltaic electricity generation grid-connecting metering device internal structure schematic diagram of embodiment 1；
Fig. 2 is the stealing instruction schematic diagram of embodiment 1；
Fig. 3 is the cover structure schematic diagram of embodiment 1；
Fig. 4 A is the incoming line planar structure schematic diagram of embodiment 1；
Fig. 4 B is the incoming line perspective view of embodiment 1；
Fig. 5 is the Intelligent photovoltaic electricity generation grid-connecting metering device internal structure schematic diagram of embodiment 2；
Fig. 6 is the control principle drawing of embodiment 2.
Detailed description of the invention
Embodiment 1
As shown in Figure 1; Intelligent photovoltaic electricity generation grid-connecting metering device; including casing 1, and Surge Protector 2, service entrance switch 3, measurement meter 4, harvester 5, outlet isolation plug-in strip 6, inlet wire side transformer 7A, outgoing line side transformer 7B and the indicating module 8 being arranged in casing 1.Wherein, described casing 1 is divided into 3 cabins; it is respectively and measurement meter 4 and the table meter storehouse 11 of harvester 5 are installed, Surge Protector 2, service entrance switch 3, the inlet wire storehouse 12 of inlet wire side transformer 7A are installed, and outlet isolation plug-in strip 6, the outlet storehouse 13 of outgoing line side transformer 7 are installed.Casing 1 uses anti-flaming ABS material, the casing using anti-flaming ABS material to make, and has good flame-resistant insulation, anti creepage trace, aging resistance, UV resistant irradiate, it is waterproof to seal and the advantage such as mechanical strength.
The electric current of photovoltaic module is input in casing 1 after inverter; the live wire L of inlet wire is input to Surge Protector 2, service entrance switch 3 through inlet wire side transformer 7A; the ground wire Pe of inlet wire is directly connected with Surge Protector 2, and the zero line N of inlet wire is connected with Surge Protector 2, service entrance switch 3；Inlet wire current sequentially passes through measurement meter 4, outlet isolation plug-in strip 6 and outgoing line side transformer 7B, the electrical network grid-connected system being finally output to outside casing 1 or user after inlet wire side transformer 7A, Surge Protector 2, service entrance switch 3 again.Described harvester 5 is connected with measurement meter 4, is used for gathering energy data, and related data is sent to external device.Surge Protector 2 is installed in end of incoming cables, and effectively protection Lightning Over-voltage invades.In the present embodiment, the isolation plug-in strip that described outlet isolation plug-in strip 6 uses model to be iDPNK2-40A, leading-out terminal is installed to be had obvious cut-off point and possesses the isolation plug-in strip of anti-misdelivery blocking function, meets distribution net equipment maintenance safety requirement.Described service entrance switch 3 uses miniature circuit breaker.
In the present embodiment, described indicating module 8 uses LED light, as shown in Figure 2, two pins of display lamp are connected with inlet wire side transformer 7A, outgoing line side transformer 7B respectively, when the faradic current of inlet wire side transformer 7A, outgoing line side transformer 7B is consistent, display lamp two ends no-voltage is poor, and lamp does not works；When inlet wire side transformer 7A, outgoing line side transformer 7B faradic current difference, display lamp two ends can produce voltage difference, and lamp is bright.By the on and off of display lamp, can reflect whether there is shunting between inlet wire side and outgoing line side, i.e. in casing 1, whether have electricity filching behavior to occur.
As it is shown on figure 3, be the safety ensureing casing 1 each components and parts internal, described casing 1 is provided with transparent case lid 10, and case lid 10 uses high-quality Merlon (PC), and the transparency is good, it is ensured that does not ftractures in certain time, does not obscure, can clearly carry out meter reading.Each components and parts state in the case of being not switched on case lid 10 it is observed that in casing 1.Described casing 1 and case lid 10 coordinating by buckle, mutually install, fixed further by seal simultaneously.
Position corresponding to described case lid 10 and inlet wire storehouse 12, outlet storehouse 13 is further provided with independent inlet wire storehouse lid 101 and outlet storehouse lid 102, and described inlet wire storehouse lid 101, lid 102 one end, outlet storehouse are all articulated on case lid 10, and the other end is fixed on case lid 10 by seal；The position that case lid 10 isolates plug-in strip 6 corresponding with Surge Protector 2, service entrance switch 3, outlet all offers action window 103; and described action window 103 only exposes Surge Protector 2, service entrance switch 3, the manual pushing position of outlet isolation plug-in strip 6, Surge Protector 2, service entrance switch 3, the wiring pile of outlet isolation plug-in strip 6 and screw are all hidden in case lid 10.The setting of action window 103, it is simple to staff only need to individually open inlet wire storehouse lid 101 and/or outlet storehouse lid 102, it is possible to stirred the switching device in cabin by action window 103, need not open whole case lid 10.
Described case lid 10 and measurement meter 4, the position that harvester 5 button is corresponding are respectively equipped with measurement meter removable cover 104 and harvester removable cover 105, described measurement meter removable cover 104 and harvester removable cover 105 one end are articulated on case lid 10, and the other end is connected on case lid 10.By respective removable cover, measurement meter 4, harvester 5 can be operated by staff accordingly.
Incoming line 14 and line outlet 15 it is respectively equipped with, for input and the output of electric current on described inlet wire storehouse 12 and outlet storehouse 13.In the present embodiment, described line outlet is consistent with incoming line structure, is arranged on the base in inlet wire storehouse 12 and outlet storehouse 13.Below to be described in detail as a example by incoming line 14: as shown in Fig. 4 A, Fig. 4 B, described incoming line 14 includes heavy caliber end 141 and small-caliber end 142, box body wall inside incoming line 14 is provided with 1 piece of moveable baffle plate 143, described baffle plate 143 is provided with sliding tray 144 and the arc port 145 of strip, size according to cable bore, select the installation direction of baffle plate 143, when cable is thinner, baffle plate arc port 145 is towards small-caliber end 142, nut 146 is screwed onto on casing 1 wall after sliding tray 144, slide damper 143, adjusts the caliber size of incoming line 14；Otherwise, when cable is thicker, baffle plate arc port 145, towards heavy caliber end 141, slide damper 143, adjusts the caliber size of incoming line 14.Baffle plate arc port 145 can form bigger incoming line 14 with heavy caliber end 141, forms less incoming line 14 with small-caliber end 142.In order to make the cable of incoming line 14 install more stable, baffle plate 143 and box body wall can arrange one piece of pad 147.Use the adjustable incoming line of size 14, incoming line 14 bore can be adjusted according to cable diameter and be fixed from inner side, changing the drawback that conventional metered dose case cable incoming line, line outlet size are fixed, clearance spaces is bigger after threading, the most anti-toy enters, and the most effectively takes precautions against user's threading privately.
Embodiment 2
As shown in Figure 5; Intelligent photovoltaic electricity generation grid-connecting metering device; including casing 1, and Surge Protector 2, service entrance switch 3, measurement meter 4, harvester 5, outlet isolation plug-in strip 6, inlet wire side transformer 7A, outgoing line side transformer 7B, indicating module 8 and the control module 9 being arranged in casing 1.Wherein, described casing 1 is divided into 3 cabins; it is respectively and measurement meter 4 and the table meter storehouse 11 of harvester 5 are installed; Surge Protector 2, service entrance switch 3, the inlet wire storehouse 12 of inlet wire side transformer 7A are installed; and outlet isolation plug-in strip 6, the outlet storehouse 13 of outgoing line side transformer 7 are installed, control module 9 can be arranged on table meter storehouse 11, inlet wire storehouse 12 or outlet storehouse 13 according to actual spatial distribution.In this example, described control module 9 is arranged in outlet storehouse 13.Casing 1 uses anti-flaming ABS material, the casing using anti-flaming ABS material to make, and has good flame-resistant insulation, anti creepage trace, aging resistance, UV resistant irradiate, it is waterproof to seal and the advantage such as mechanical strength.
For ensureing the safety of casing 1 each components and parts internal, described casing 1 is provided with transparent case lid 10, and case lid 10 uses high-quality Merlon (PC), and the transparency is good, it is ensured that does not ftractures in certain time, does not obscures, can clearly carry out meter reading.Each components and parts state in the case of being not switched on case lid 10 it is observed that in casing 1.Described casing 1 and case lid 10 coordinating by buckle, mutually install, fixed further by seal simultaneously.Described casing 1 and case lid 10 coordinating by buckle, mutually install, fixed further by seal simultaneously.The edge that described casing 1 contacts with case lid 10 is provided with several induction apparatus 16, induction apparatus 16 is connected with control module 9, and when case lid 10 leaves casing 1, corresponding induced signal is sent to control module 9 by induction apparatus 16, control module is sent to external device by harvester 5, it is achieved alarm.
The electric current of photovoltaic module is input in casing 1 after inverter; the live wire L of inlet wire is input to Surge Protector 2, service entrance switch 3 through inlet wire side transformer 7A; the ground wire Pe of inlet wire is directly connected with Surge Protector 2, and the zero line N of inlet wire is connected with Surge Protector 2, service entrance switch 3；Inlet wire current sequentially passes through measurement meter 4, outlet isolation plug-in strip 6 and inlet wire side transformer 7A, the electrical network grid-connected system being finally output to outside casing 1 or user after inlet wire side transformer 7A, Surge Protector 2, service entrance switch 3 again.Described harvester 5 is connected with measurement meter 4, is used for gathering energy data, and related data is sent to external device.Surge Protector 2 is installed in end of incoming cables, and effectively protection Lightning Over-voltage invades.In the present embodiment, the isolation plug-in strip that described outlet isolation plug-in strip 6 uses model to be iDPNK2-40A.Leading-out terminal is installed to be had obvious cut-off point and possesses the isolation plug-in strip of anti-misdelivery blocking function, meets distribution net equipment maintenance safety requirement.Described service entrance switch 3 uses miniature circuit breaker.
As shown in Figure 6, described control module 9 respectively with measurement meter 4, harvester 5, service entrance switch 3, outlet isolation plug-in strip 6, inlet wire side transformer 7A, outgoing line side transformer 7B, indicating module 8 is connected with photovoltaic DC-to-AC converter, the relevant electrical energy parameter of measurement meter 4, the switching signal of service entrance switch 3, the switching signal of outlet isolation plug-in strip 6 all flows to harvester 5 by control module 9, it is sent to external device again by harvester 5, inlet wire side transformer 7A, the current information collected is sent to control module 9 by outgoing line side transformer 7B, after control module processes by analysis, pointed out by indicating module 8.Control module 9 uses Single-chip Controlling.
In the present embodiment, described indicating module 8 uses LED light, as shown in Figure 2, two pins of display lamp are connected with inlet wire side transformer 7A, outgoing line side transformer 7B respectively, when the faradic current of inlet wire side transformer 7A, outgoing line side transformer 7B is consistent, display lamp two ends no-voltage is poor, and lamp does not works；When inlet wire side transformer 7A, outgoing line side transformer 7B faradic current difference, display lamp two ends can produce voltage difference, and lamp is bright.By the on and off of display lamp, can reflect whether there is shunting between inlet wire side and outgoing line side, i.e. in casing 1, whether have electricity filching behavior to occur.
Position corresponding to described case lid 10 and inlet wire storehouse 12, outlet storehouse 13 is further provided with independent inlet wire storehouse lid 101 and outlet storehouse lid 102, and described inlet wire storehouse lid 101, lid 102 one end, outlet storehouse are all articulated on case lid 10, and the other end is fixed on case lid 10 by seal；The position that case lid 10 isolates plug-in strip 6 corresponding with Surge Protector 2, service entrance switch 3, outlet all offers action window 103; and described action window 103 only exposes Surge Protector 2, service entrance switch 3, the manual pushing position of outlet isolation plug-in strip 6, Surge Protector 2, service entrance switch 3, the wiring pile of outlet isolation plug-in strip 6 and screw are all hidden in case lid 10.The setting of action window 103, it is simple to staff only need to individually open inlet wire storehouse lid 101 and/or outlet storehouse lid 102, it is possible to stirred the switching device in cabin by action window 103, need not open whole case lid 10.
Described case lid 10 and measurement meter 4, the position that harvester 5 button is corresponding are respectively equipped with measurement meter removable cover 104 and harvester removable cover 105, described measurement meter removable cover 104 and harvester removable cover 105 one end are articulated on case lid 10, and the other end is connected on case lid 10.By respective removable cover, measurement meter 4, harvester 5 can be operated by staff accordingly.
Incoming line 14 and line outlet 15 it is respectively equipped with, for input and the output of electric current on described inlet wire storehouse 12 and outlet storehouse 13.In the present embodiment, described line outlet, incoming line structure are basically identical with embodiment 1.
Intelligent photovoltaic electricity generation grid-connecting metering device described in the present embodiment, realizes uncap information, grid-connected switching-state information, inverter duty etc. of case lid by control module 9 and samples, processes, transmits and remote monitoring function.
Above-described embodiment and the product form of the graphic and non-limiting present invention and style, suitably change that it is done by any person of an ordinary skill in the technical field or modify, all should be regarded as the patent category without departing from the present invention.
Claims (10)
1. Intelligent photovoltaic electricity generation grid-connecting metering device; it is characterized in that: include casing; and Surge Protector, service entrance switch, measurement meter, harvester, outlet isolation plug-in strip, inlet wire side transformer, outgoing line side transformer and the indicating module being arranged in casing; the electric current of photovoltaic module is input in casing after inverter, and after sequentially passing through inlet wire side transformer, Surge Protector, service entrance switch, measurement meter, outlet isolation plug-in strip and outgoing line side transformer, output is to electrical network grid-connected system or user；Described harvester is connected with measurement meter, gathers energy data；Described indicating module is connected with inlet wire side transformer, outgoing line side transformer respectively, and whether instruction inlet wire side transformer, outgoing line side transformer exist difference between current.
2. Intelligent photovoltaic electricity generation grid-connecting metering device as claimed in claim 1, it is characterized in that: described indicating module is LED light, two pins of described display lamp are connected with inlet wire side transformer, outgoing line side transformer respectively, inlet wire side transformer, outgoing line side transformer faradic current consistent time, display lamp does not works；When inlet wire side transformer, outgoing line side transformer induced electric current difference, display lamp is bright.
3. Intelligent photovoltaic electricity generation grid-connecting metering device as claimed in claim 1, it is characterized in that: in described casing, be further provided with control module, described control module respectively with measurement meter, harvester, service entrance switch, outlet isolation plug-in strip, inlet wire side transformer, outgoing line side transformer is connected with indicating module, the relevant electrical energy parameter of measurement meter, the switching signal of service entrance switch, the switching signal of outlet isolation plug-in strip all flows to harvester by control module, it is sent to external device again by harvester, inlet wire side transformer, the current information collected is sent to control module by outgoing line side transformer, after control module processes by analysis, pointed out by indicating module.
4. Intelligent photovoltaic electricity generation grid-connecting metering device as claimed in claim 1; it is characterized in that: described casing uses anti-flaming ABS material; inside is provided with 3 cabins; it is respectively and measurement meter and the table meter storehouse of harvester are installed; Surge Protector, service entrance switch, the inlet wire storehouse of inlet wire side transformer are installed, and outlet isolation plug-in strip, the outlet storehouse of outgoing line side transformer are installed.
5. Intelligent photovoltaic electricity generation grid-connecting metering device as claimed in claim 4, it is characterised in that: described casing is provided with transparent case lid.
6. Intelligent photovoltaic electricity generation grid-connecting metering device as claimed in claim 5, it is characterized in that: position corresponding to described case lid and inlet wire storehouse, outlet storehouse is further provided with independent inlet wire Cang Gai and outlet Cang Gai, described inlet wire Cang Gai, outlet Cang Gai one end are all articulated on case lid, and the other end is fixed on case lid by seal；The position that case lid isolates plug-in strip corresponding with Surge Protector, service entrance switch, outlet all offers action window; and described action window only exposes Surge Protector, service entrance switch, the manual pushing position of outlet isolation plug-in strip, Surge Protector, service entrance switch, the wiring pile of outlet isolation plug-in strip and screw are all hidden in case lid.
7. Intelligent photovoltaic electricity generation grid-connecting metering device as claimed in claim 5, it is characterized in that: described case lid and measurement meter, the position that harvester button is corresponding are respectively equipped with measurement meter removable cover and harvester removable cover, described measurement meter removable cover and harvester removable cover one end are articulated on case lid, and the other end is connected on case lid.
8. Intelligent photovoltaic electricity generation grid-connecting metering device as claimed in claim 4, it is characterized in that: on described inlet wire storehouse and outlet storehouse, be respectively equipped with incoming line and line outlet, wherein, described incoming line and line outlet all include heavy caliber end and small-caliber end, box body wall inside incoming line and line outlet is provided with moveable baffle plate, described baffle plate is provided with arc port, by the movement of baffle plate arc port, adjusts incoming line and the size of line outlet.
9. Intelligent photovoltaic electricity generation grid-connecting metering device as claimed in claim 8, it is characterized in that: described incoming line includes heavy caliber end and small-caliber end, box body wall inside incoming line is provided with 1 piece of moveable baffle plate, and described baffle plate is provided with sliding tray and the arc port of strip, according to the size of cable bore, select the installation direction of baffle plate, when cable is thinner, baffle plate arc port is screwed onto on box body wall after sliding tray towards small-caliber end, nut, slide damper, adjusts the caliber size of incoming line；Otherwise, when cable is thicker, baffle plate arc port, towards heavy caliber end, slide damper, adjusts the caliber size of incoming line；Described line outlet is consistent with incoming line structure.
10. Intelligent photovoltaic electricity generation grid-connecting metering device as claimed in claim 5, it is characterized in that: described casing and case lid coordinating by buckle, mutually install, being fixed further by seal, the edge that described casing contacts with case lid is provided with several induction apparatus simultaneously, and induction apparatus is connected with control module, when case lid leaves casing, corresponding induced signal is sent to control module by induction apparatus, and control module is sent to external device by harvester, it is achieved alarm.
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| CN201610283927.XA CN105826945A (en) | 2016-04-29 | 2016-04-29 | Intelligent photovoltaic power generation grid-connected metering device |
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| CN108872659A (en) * | 2018-06-29 | 2018-11-23 | 安徽硕日光电科技有限公司 | A kind of intelligence distribution transformer electric quantity vasculum |
| CN109038291A (en) * | 2018-10-22 | 2018-12-18 | 郭乃彦 | A kind of beginning case with foolproof function |
| CN109787122A (en) * | 2019-01-27 | 2019-05-21 | 胡佳 | A kind of photovoltaic power generation electric metering box |
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