CN104569527A - Metering box used for low-voltage distributed type photovoltaic power generation - Google Patents
Metering box used for low-voltage distributed type photovoltaic power generation Download PDFInfo
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- CN104569527A CN104569527A CN201510054383.5A CN201510054383A CN104569527A CN 104569527 A CN104569527 A CN 104569527A CN 201510054383 A CN201510054383 A CN 201510054383A CN 104569527 A CN104569527 A CN 104569527A
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- photovoltaic power
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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
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Abstract
The invention discloses a metering box used for low-voltage distributed type photovoltaic power generation. The metering box comprises a box body, and a generation power meter, a gate meter and a power information acquiring terminal connected with the generation power meter and the gate meter are arranged in the box body. A terminal of the generation power meter is connected with an inverter of photovoltaic power generation through a first switch device, a terminal of the gate meter is connected with a load switch device through a second switch device, and the other terminals of the generation power meter and the gate meter are connected with a load through a third switch device. Power generation, grid connection, offline metering and control devices are all packaged in the same box body, so that the metering box has an automatic stealing-preventing control performance thoroughly.
Description
Technical field
The present invention relates to power generation field, particularly relate to a kind of batch meter for low pressure distributed photovoltaic power generation.
Background technology
Advocate energetically along with country and promote new forms of energy project, the residential customers coming to handle the grid-connected project of distributed photovoltaic gets more and more, and has application to generate power for their own use, and also has application to generate power for their own use remaining electricity online.According to the grid-connected demand of the difference of client, according to the principle of " four unification, convenient and efficient ", accelerate distributed photovoltaic power generation project and net spee, for client completes grid-connected service within the flow process time limit.
But in the process of grid-connected service, have one to compare distinct issues and be, because inhabitant distribution formula photovoltaic generation project has certain requirement to equipment fabricating yard, or ground or roof or the water surface, therefore possess the small towns of inhabitant distribution formula photovoltaic generation project polydispersion in each county (district) of mounting condition, rural area, business area under one's jurisdiction expands to each company of county.Although city, the each business window of company of county has carried out the grid-connected service of distributed photovoltaic all in time, but after entering the construction stage, because batch meter invests making voluntarily by client, the batch meter that client provides has plenty of the transformation carried out on the table box foundation of existing family, what have is then that client has made to order voluntarily, material, size, reserved epi-position, switchgear distribution etc. are more chaotic, without unified technical requirement and equipping rules, quality also cannot ensure, cause the batch meter of portions of client because of the nothing measure of falling power transmission, the reasons such as configuration standard is lower cannot pass through grid-connected Acceptance application, have impact on the service schedule of the grid-connected project of distributed photovoltaic, client is also easily caused to be discontented with.Therefore, the standard of the batch meter of specification 380 (220) V distributed photovoltaic power generation, becomes current urgent problem.
Summary of the invention
The invention provides a kind of distributed photovoltaic power generation grid-connected after accurate-metering, reliable to close and the batch meter for low pressure distributed photovoltaic power generation of safe operation.
For achieving the above object, the present invention adopts following technical scheme:
For a batch meter for low pressure distributed photovoltaic power generation, comprise casing, in casing, be provided with generated energy electric energy meter and energy metering table, and the power information acquisition terminal be all connected with generated energy electric energy meter and energy metering table; A terminal of described generated energy electric energy meter is connected with the inverter of photovoltaic generation by the first switchgear; A terminal of described energy metering table is connected to load switching unit by second switch device; Another terminal of described generated energy electric energy meter and energy metering table is all connected to load by the 3rd switchgear.
Described first switchgear is an isolating switch.
Described second switch device is a band undervoltage tripping isolating switch.
Described 3rd switchgear is an isolating switch.
Described load switching unit is a disconnector.
Described power information acquisition terminal, comprises controller, and the network transmission module be connected with controller; Described power information acquisition terminal carries out spatial load forecasting, electricity charge control and information acquisition to user power utilization information and uploads.
Described power information acquisition terminal is identical with generated energy electric energy meter size, and is connected with the reserved communication port of generated energy electric energy meter.
The material of described casing is stainless steel.
Beneficial effect of the present invention is:
(1) electric energy meter possesses electric current and information of voltage collection, realizes the Real-time Collection to generated energy, electricity volume, off line electricity and station-service electric quantity data and normality monitoring;
(2) gauging table Information Monitoring accesses administration of power networks department and photovoltaic generation administrative authority acquiring electric energy information system respectively, as electrical energy metering and electricity price subsidy foundation; Real-Time Monitoring user can be incorporated into the power networks situation, to preserve related data, check grid-connected fault;
(3) generating, grid-connected, lower network metering and opertaing device are all encapsulated in same cabinet by the present invention, thus have possessed the anti-electricity-theft automatic control performance in complete meaning.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is embodiments of the invention structural representation.
Wherein, 1, casing; 2, generated energy electric energy meter; 3, energy metering table; 4, power information acquisition terminal; 5, the first switchgear; 6, second switch device; 7, the 3rd switchgear; 8, load switching unit; 9, load; 10, inverter; 11, photovoltaic module.
Embodiment
Below in conjunction with Figure of description, the present invention is described:
For a batch meter for low pressure distributed photovoltaic power generation, comprise casing 1; Generated energy electric energy meter 2 and energy metering table 3 is provided with in described casing 1, and the power information acquisition terminal 4 be all connected with generated energy electric energy meter 2 and energy metering table 3; A terminal of described generated energy electric energy meter 2 is connected with the inverter 10 of photovoltaic generation by the first switchgear 5, and inverter 10 is connected with photovoltaic module 11; A terminal of described energy metering table 3 is connected to on-load switch by second switch device 6 and fills 8 and put; Another terminal of described generated energy electric energy meter 2 and energy metering table 3 is all connected to load 9 by the 3rd switchgear 7, as shown in Figure 1.
As shown in Figure 2, for 380 (220) volt distributed photovoltaic power generation batch meters, this batch meter comprises casing 1, the material selection stainless steel of described casing 1, for ensureing the lasting, durable of batch meter;
Be provided with generated energy electric energy meter 2 in casing 1, its model selects DTZY22X type three-phase and four-line intelligent electric energy meter, is used for measuring the generated energy of photovoltaic generation; And
Energy metering table 3, its model also selects DTZY22X type three-phase and four-line intelligent electric energy meter, is used for measuring the electric flux of electrical network descending net; And
The power information acquisition terminal 4 be all connected with generated energy electric energy meter 2 and energy metering table 3;
A terminal of described generated energy electric energy meter 2 is connected with the inverter of photovoltaic generation by an isolating switch; A terminal of described energy metering table is connected to a disconnector by a band undervoltage tripping isolating switch; Another terminal of described generated energy electric energy meter 2 and energy metering table 3 is all connected to load by an isolating switch.
Before batch meter is implemented:
(1) without unified technical requirement and equipping rules, quality also cannot ensure.Cause the batch meter of portions of client because by grid-connected Acceptance application, the service schedule of the grid-connected project of distributed photovoltaic cannot be have impact on without reasons such as the measure of falling power transmission, configuration standard are lower, also easily cause client discontented;
(2) distributed photovoltaic batch meter because of the nonstandard production cycle long, clients fund drop into standard differ, batch meter quality is very different.
After enforcement:
(1) specification and the configuration standard having unified distributed photovoltaic power generation project batch meter, improve technical merit and the management level of low-pressure metering box, ensure safety, the reliability service of low-pressure metering box;
(2) can be mass batch meter, difference according to the mode of dissolving, electric pressure is directly received, design in the middle of greatly having saved, making link, because the universal standard, avoid because table meter, switch, the measure of falling power transmission such as not to configure at the rework aspect caused, save the invest in the transformation of real estate cost of client, also accelerate the time of grid-connected service.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (8)
1. for a batch meter for low pressure distributed photovoltaic power generation, it is characterized in that, comprise casing, in casing, be provided with generated energy electric energy meter and energy metering table, and the power information acquisition terminal be all connected with generated energy electric energy meter and energy metering table; A terminal of described generated energy electric energy meter is connected with the inverter of photovoltaic generation by the first switchgear; A terminal of described energy metering table is connected to load switching unit by second switch device; Another terminal of described generated energy electric energy meter and energy metering table is all connected to load by the 3rd switchgear.
2. a kind of batch meter for low pressure distributed photovoltaic power generation as claimed in claim 1, it is characterized in that, described first switchgear is an isolating switch.
3. a kind of batch meter for low pressure distributed photovoltaic power generation as claimed in claim 1, it is characterized in that, described second switch device is a band undervoltage tripping isolating switch.
4. a kind of batch meter for low pressure distributed photovoltaic power generation as claimed in claim 1, it is characterized in that, described 3rd switchgear is an isolating switch.
5. a kind of batch meter for low pressure distributed photovoltaic power generation as claimed in claim 1, it is characterized in that, described load switching unit is a disconnector.
6. a kind of batch meter for low pressure distributed photovoltaic power generation as claimed in claim 1, it is characterized in that, described power information acquisition terminal, comprises controller, and the network transmission module be connected with controller; Described power information acquisition terminal carries out spatial load forecasting, electricity charge control and information acquisition to user power utilization information and uploads.
7. a kind of batch meter for low pressure distributed photovoltaic power generation as claimed in claim 1, it is characterized in that, described power information acquisition terminal is identical with generated energy electric energy meter size, and is connected with the reserved communication port of generated energy electric energy meter.
8. a kind of batch meter for low pressure distributed photovoltaic power generation as claimed in claim 1, it is characterized in that, the material of described casing is stainless steel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510054383.5A CN104569527B (en) | 2015-02-03 | 2015-02-03 | A kind of batch meter for low pressure distributed photovoltaic power generation |
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| CN201510054383.5A CN104569527B (en) | 2015-02-03 | 2015-02-03 | A kind of batch meter for low pressure distributed photovoltaic power generation |
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| CN104569527A true CN104569527A (en) | 2015-04-29 |
| CN104569527B CN104569527B (en) | 2017-09-15 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105262440A (en) * | 2015-11-24 | 2016-01-20 | 国网山东省电力公司济宁供电公司 | Mobile distributed photovoltaic power generation integrated test platform |
| CN105301304A (en) * | 2015-09-18 | 2016-02-03 | 国网山东省电力公司临沂供电公司 | Power metering box for photovoltaic power generation |
| CN107179426A (en) * | 2017-06-06 | 2017-09-19 | 国网江苏省电力公司高邮市供电公司 | The anti-grid-connected repetition metering electric energy meter of one kind |
| CN107689641A (en) * | 2017-11-17 | 2018-02-13 | 国网河南省电力公司商丘供电公司 | A kind of method for effectively improving distributed power source grid connection efficiency |
| CN108039773A (en) * | 2017-12-22 | 2018-05-15 | 苏州正易鑫新能源科技有限公司 | A kind of long-range efficiency calculation apparatus and system of photo-voltaic power generation station |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787122A (en) * | 2019-01-27 | 2019-05-21 | 胡佳 | A kind of photovoltaic power generation electric metering box |
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| CN107689641A (en) * | 2017-11-17 | 2018-02-13 | 国网河南省电力公司商丘供电公司 | A kind of method for effectively improving distributed power source grid connection efficiency |
| CN108039773A (en) * | 2017-12-22 | 2018-05-15 | 苏州正易鑫新能源科技有限公司 | A kind of long-range efficiency calculation apparatus and system of photo-voltaic power generation station |
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| CN104569527B (en) | 2017-09-15 |
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