CN105242087A - Distributed power generation and grid connection metering device - Google Patents
Distributed power generation and grid connection metering device Download PDFInfo
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- CN105242087A CN105242087A CN201510796122.0A CN201510796122A CN105242087A CN 105242087 A CN105242087 A CN 105242087A CN 201510796122 A CN201510796122 A CN 201510796122A CN 105242087 A CN105242087 A CN 105242087A
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Abstract
A distributed power generation and grid connection metering device is characterized by comprising a measurement module A (1), a measurement module B (2), a measurement module C (3), a power supply module (4), a management module (5), a communication module (6) and a display module (7). The distributed power generation and grid connection metering device has the beneficial effects of greatly simplifying the current distributed power generation and grid connection metering method, achieving the measurement of data such as gross generation, on-grid energy amount, self-consumed electric quantity, electricity purchasing quantity and the like of a photovoltaic power generation user through one meter, being more accurate in metering, simpler in wiring, lower in cost and easier in management and maintenance, being conductive to promoting distributed power generation projects, making data metering more intuitive, being more convenient in electrical charge accounting, and having great popularization value in the field of distributed power generation.
Description
Technical field
The present invention relates to a kind of grid-connected electric power meter being applied in distributed power generation, belong to technical field of electric power, particularly relate to field of new energy generation and electric energy metrical field
Background technology
The demand reduced discharging along with national energy-saving and the rise of clean energy resource, the various generating set of clean energy resource that utilizes is also more and more universal, sun power, the relevant device technology of wind power generation is more and more ripe, cost is more and more lower, the support policy of country is also increasing, resident with good conditionsi or medium-sized and small enterprises are made also to start one after another to utilize the advantage of oneself to carry out various distributed power generation, because the most electric power of distributed power generation exports unstable, distributed power generation is only incorporated to the advantage that public electric wire net just can better play distributed power generation, country and various places grid company have also put into effect a large amount of relevant policies to support that distributed power generation is grid-connected for this reason, in general distributed power generation government encourage adopts remaining electric online pattern of generating power for their own use, distributed power generation user no matter generate power for their own use or surf the Net sale of electricity can enjoy country clean energy resource subsidy, under this overall situation, need to carry out multiple metering to distributed power generation, one is the accumulative total of generating electricity needing to record distributed generation system, two is want recording user to generate power for their own use electricity, three is need recording user from the public electric wire net electricity bought and these three parts of electricity volume being sold to public electric wire net, current distributed power generation is grid-connected at least needs two pieces of electric energy meters in metering, wherein one piece of unidirectional table, for recording the output electricity of distributed generation system, another block is magic list, for the purchase of electricity of metering user from public electric wire net and the electricity sales amount to public electric wire net, user's own demand then needs by the accumulative generating electricity of distributed generation system-obtain the electricity sales amount of public electric wire net, the accumulative power consumption of user needs by user's own demand+draw from the purchase of electricity of public electric wire net, from above-mentioned discussion, at present for distributed power generation and on network metering, there is table count number many, related data draws not shortcoming intuitively, and polylith table meter also easily causes the raising of error in dipping and the raising of overall cost and O&M cost, in order to solve the problem, spy has carried out the present invention.
Summary of the invention
The object of the invention is to solve at distributed power generation and the problems referred to above existed in network metering, distributed power generation can be completed and the metering of the related data of network metering by one piece of table meter, reduce the complexity of the grid-connected metering system of distributed power generation, improve metering precision, reduce measuring apparatus holistic cost, reduce the fault point and maintenance, in order to realize above-mentioned target, the technical solution used in the present invention is as follows:
The grid-connected measuring apparatus of a kind of distributed power generation, the present invention is characterised in that, by measurement module A, measurement module B, measurement module C, power module, administration module, communication module and display module seven module compositions; Wherein, measurement module A is electrically connected to the alternating current output terminal of measurement module B and the input end of measurement module C, the output terminal of measurement module C is connected to user load and power module, for administration module is powered after power module carries out switch buck, administration module connect respectively and be measurement module A, measurement module B, measurement module C, communication module and display module power, the exchange of go forward side by side row related signal and control data; Measurement module A is by combining inverter input AC electricity, and the input end of measurement module B and public electric wire net are electrically connected, and measurement module C is connected to user load.
With clock and storer in administration module of the present invention, according to arranging, related data can be stored.
Measurement module A of the present invention adopts bidirectional measurement module, like this can the shutdown of accurate-metering combining inverter or stand-by power consumption when distributed power generation no-output.
Measurement module A of the present invention, measurement module B, measurement module C select wide range measure module respectively, to adapt to various loading condition.
Communication module of the present invention selects 485 interfaces to carry out data transmission, by mode upload and download data such as external carrier wave or wireless modules.
Inside of the present invention includes three tunnels independently measurement module, by the electricity consumption data purchasing sale of electricity data and user load of a measuring apparatus and measurable distributed power generation data, public electric wire net, each road measurement module can measure related data that is single-phase or three-phase supply.
Measurement module A of the present invention only measures the output related data of combining inverter, measurement module B can surveyingpin to the power purchase of public electric wire net and sale of electricity related data, measurement module C measures the electricity consumption data of user load.
The all continuous datas of the present invention all can be undertaken showing and uploading related data in real time by communication module by display module in real time.
The present invention possesses a road combining inverter power interface, the power interface of one road public electric wire net, one tunnel user's power interface, wherein combining inverter power interface connects the input end of internal measurement modules A, the power interface of public electric wire net connects the input end of inner measurement module B, and user's power interface connects the output terminal of inner measurement module C; According to the electricity consumption scale of user and the output form of combining inverter, the present invention can be divided into single-phase and three-phase two type the mode of connection, administration module is responsible for data analysis process to three measurement modules and storage, and can be uploaded by communication module related data according to dependent instruction.
Beneficial effect of the present invention is, simplify the mode of current distributed power generation network metering greatly, counted the data such as gross generation, electricity volume, own demand and the purchase of electricity that can complete photovoltaic generation user by one piece of table, metering is more accurate, and wiring is simpler, cost is lower, also be easier to management maintenance, the promotion of item of promotion distributed power generation that can be favourable, make data metering straight tube more, it is more convenient that the electricity charge are adjusted, and possesses great promotional value in distributed power generation field.
Accompanying drawing explanation
Fig. 1 is apparatus of the present invention system logic figure.
Embodiment
See Fig. 1, the grid-connected measuring apparatus of a kind of distributed power generation, the present invention is characterised in that, by measurement module A1, measurement module B2, measurement module C3, power module 4, administration module 5, communication module 6 and display module 7 seven module compositions; Wherein, measurement module A1 is electrically connected to the alternating current output terminal of measurement module B2 and the input end of measurement module C3, the output terminal of measurement module C3 is connected to user load and power module 4, power for administration module 5 after power module 4 carries out switch buck, administration module 5 connect respectively and be measurement module A1, measurement module B2, measurement module C3, communication module 6 and display module 7 power, the exchange of go forward side by side row related signal and control data; Measurement module A1 is by combining inverter 8 input AC electricity, and input end and the public electric wire net 9 of measurement module B2 are electrically connected, and measurement module C3 is connected to user load 10.
With clock and storer in administration module 5 of the present invention, according to arranging, related data can be stored.
Measurement module 1 of the present invention adopts bidirectional measurement module, like this can the shutdown of accurate-metering combining inverter or stand-by power consumption when distributed power generation no-output.
Measurement module 1 of the present invention, measurement module 2, measurement module 3 select wide range measure module respectively, to adapt to various loading condition.
Communication module 6 of the present invention selects 485 interfaces to carry out data transmission, by mode upload and download data such as external carrier wave or wireless modules.
In actual applications, distributed power generation user is according to the mode of connection of register one's residence power supply and actual power power determination distributed power generation, and the present invention has two kinds from the mode of connection, and one is single-phase, one is phase three-wire three, selects the measuring apparatus of corresponding classification according to the way of output of distributed power generation.
The user adopting distributed power generation grid-connected, when needs are grid-connected connect electricity time, need the former household electric meter position out-put supply of the combining inverter 8 of distributed power generation being routed to user, take off the former household electric meter of user, be replaced by measuring apparatus of the present invention, combining inverter 8 out-put supply line is connect combining inverter power interface of the present invention, and public electric wire net 9 service wire of user connects the power interface of public electric wire net of the present invention, and user load 10 connects user's power interface of the present invention.
In actual applications for the scene of three-phase grid-connected generating, also three pieces of these single-phase devices can be adopted to measure three-phase respectively, there is larger dirigibility in the application, the present invention is by analyzing the grid-connected Problems existing of current distributed power generation, and combine the relevant measuring requirement grid-connected to distributed power generation, propose for the grid-connected Integral metering device of distributed power generation, the present invention is not limited in the application in the grid-connected scene of distributed power generation, double loop power supply is possessed to all, the scene of one tunnel load can use the present invention to simplify metering difficulty, improve measuring accuracy, the cost reducing metering outfit drops into.
Principle of work of the present invention and concrete operative scenario should be able to be understood clearly by above-mentioned explanation; the basic general knowledge of the art is belonged to for the measuring parameter in electric energy metrical field and Metrology Project; relevant Metrology Project and metering method can be increased and decreased according to specific needs by arranging; the people being familiar with this area should understand, by increasing and adjusting measuring parameter or the various adjustment carried out details of the present invention all should at the row of protection of the present invention.
Claims (5)
1. the grid-connected measuring apparatus of distributed power generation, it is characterized in that, by measurement module A (1), measurement module B (2), measurement module C (3), power module (4), administration module (5), communication module (6) and display module (7) seven module compositions, wherein, measurement module A (1) is electrically connected to the alternating current output terminal of measurement module B (2) and the input end of measurement module C (3), the output terminal of measurement module C (3) is connected to user load and power module (4), power module (4) is administration module (5) power supply after carrying out switch buck, administration module (5) connects respectively and is measurement module A (1), measurement module B (2), measurement module C (3), communication module (6) and display module (7) are powered, the exchange of row related signal and the control data of going forward side by side, measurement module A (1) is by combining inverter (8) input AC electricity, input end and the public electric wire net (9) of measurement module B (2) are electrically connected, and measurement module C (3) is connected to user load (10).
2. the grid-connected measuring apparatus of a kind of distributed power generation as claimed in claim 1, is characterized in that, with clock and storer in administration module (5), related data can be stored according to arranging.
3. the grid-connected measuring apparatus of a kind of distributed power generation as claimed in claim 1; it is characterized in that; measurement module A (1) adopts bidirectional measurement module, like this can the shutdown of accurate-metering combining inverter or stand-by power consumption when distributed power generation no-output.
4. the grid-connected measuring apparatus of a kind of distributed power generation as claimed in claim 1, it is characterized in that, measurement module A (1), measurement module B (2), measurement module C (3) select wide range measure module respectively, to adapt to various loading condition.
5. the grid-connected measuring apparatus of a kind of distributed power generation as claimed in claim 1, is characterized in that, communication module (6) selects 485 interfaces to carry out data transmission, by mode upload and download data such as external carrier wave or wireless modules.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510796122.0A CN105242087A (en) | 2015-11-18 | 2015-11-18 | Distributed power generation and grid connection metering device |
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| CN201510796122.0A CN105242087A (en) | 2015-11-18 | 2015-11-18 | Distributed power generation and grid connection metering device |
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| CN105242087A true CN105242087A (en) | 2016-01-13 |
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| CN201510796122.0A Pending CN105242087A (en) | 2015-11-18 | 2015-11-18 | Distributed power generation and grid connection metering device |
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| CN109416260A (en) * | 2016-05-26 | 2019-03-01 | 兰迪斯+盖尔创新有限公司 | The utility meter table used for Distributed-generation equipment |
| US10886748B1 (en) | 2019-10-11 | 2021-01-05 | Landis+Gyr Innovations, Inc. | Metering and communications for distributed energy resource devices |
| US10948516B2 (en) | 2019-01-10 | 2021-03-16 | Landis+Gyr Innovations, Inc. | Methods and systems for connecting and metering distributed energy resource devices |
| US11187734B2 (en) | 2019-05-31 | 2021-11-30 | Landis+Gyr Innovations, Inc. | Systems for electrically connecting metering devices and distributed energy resource devices |
| US11237194B2 (en) | 2019-10-11 | 2022-02-01 | Landis+Gyr Innovations, Inc. | Meter for use with a distributed energy resource device |
| US11982544B2 (en) | 2021-02-04 | 2024-05-14 | Landis+Gyr Technology, Inc. | Distributed control of energy storage device charging and grid stability |
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| US10998731B2 (en) | 2016-05-26 | 2021-05-04 | Landis+Gyr Innovations, Inc. | Utility meter for use with distributed generation device |
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| US11415598B2 (en) | 2019-01-10 | 2022-08-16 | Landis+Gyr Innovations, Inc. | Methods and systems for connecting and metering distributed energy resource devices |
| US11187734B2 (en) | 2019-05-31 | 2021-11-30 | Landis+Gyr Innovations, Inc. | Systems for electrically connecting metering devices and distributed energy resource devices |
| US11774473B2 (en) | 2019-05-31 | 2023-10-03 | Landis+Gyr Technology, Inc. | Systems for electrically connecting metering devices and distributed energy resource devices |
| US11237194B2 (en) | 2019-10-11 | 2022-02-01 | Landis+Gyr Innovations, Inc. | Meter for use with a distributed energy resource device |
| US11316348B2 (en) | 2019-10-11 | 2022-04-26 | Landis+Gyr Innovations, Inc. | Metering and communications for distributed energy resource devices |
| US10886748B1 (en) | 2019-10-11 | 2021-01-05 | Landis+Gyr Innovations, Inc. | Metering and communications for distributed energy resource devices |
| US11506693B2 (en) | 2019-10-11 | 2022-11-22 | Landis+Gyr Innovations, Inc. | Meter and socket for use with a distributed energy resource device |
| US11835556B2 (en) | 2019-10-11 | 2023-12-05 | Landis+Gyr Technology, Inc. | Meter for use with a distributed energy resource device |
| US11965918B2 (en) | 2019-10-11 | 2024-04-23 | Landis+Gyr Technology, Inc. | Meter for use with a distributed energy resource device |
| US11982544B2 (en) | 2021-02-04 | 2024-05-14 | Landis+Gyr Technology, Inc. | Distributed control of energy storage device charging and grid stability |
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Application publication date: 20160113 |