CN210273511U - Energy management system for solar power generation - Google Patents
Energy management system for solar power generation Download PDFInfo
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- CN210273511U CN210273511U CN201920279345.3U CN201920279345U CN210273511U CN 210273511 U CN210273511 U CN 210273511U CN 201920279345 U CN201920279345 U CN 201920279345U CN 210273511 U CN210273511 U CN 210273511U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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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Abstract
An energy management system for solar power generation, comprising: the system comprises a photovoltaic power generation module, a photovoltaic inverter, an electric quantity storage module, a plurality of intelligent electric meters, a server, the Internet, an electric quantity supplement module, a switch, an electric consumption load module and an EMS/AGC module; the power supply module under the control of the power management system can be used independently or selectively applied in a combined mode according to the electric quantity requirements of users, the power supply mode is flexibly switched, and the regulation and control requirements of power consumption peaks and power consumption peaks in different periods are met; the arrangement of the electric quantity supplementing module meets different power utilization requirements of each user in the power consumption load module on the basis of considering the profit maximization of the photovoltaic power plant, and can meet the sudden increase power utilization requirements of the users; secondly, according to the price of each energy and the power supply reliability, the system automatically realizes multi-energy complementation, unattended operation and optimization of user energy cost.
Description
Technical Field
The utility model relates to an energy management technical field specifically is an energy management system for solar energy power generation.
Background
In order to achieve sustainable development of economy, all countries strive to develop and utilize the field of renewable resources, wherein solar energy is used as inexhaustible energy and is brought into the category of clean energy which can be vigorously developed, China not only vigorously develops the national solar power generation technology, but also encourages people to popularize solar power generation, allows civil solar power generation to be combined into the national power grid for compensation, and is beneficial to popularization, development and utilization of solar cells.
Solar energy power supply object is general comparatively fixed, the power consumption is fixed, but the application flexibility ratio has been improved greatly along with civilization small-size photovoltaic power plant's construction, on the one hand, small-size photovoltaic power plant can select to merge the electric quantity into the national grid, on the other hand, small-size photovoltaic power plant can carry out the collaborative power supply with peripheral a plurality of mills, to the latter, the power consumption load of small-size mill changes more and leads to the power consumption unfixed, energy management system flexibility ratio among the prior art is relatively poor, can't realize the rational distribution of power consumption, especially can appear the phenomenon that power consumption suddenly increases or suddenly reduces to the unstable user of some production order volume often, lead to the unable timely adjustment power supply strategy of photovoltaic power plant to lead to the electric quantity to flow to unreasonable, can't.
Disclosure of Invention
An energy management system for solar power generation, comprising: the system comprises a photovoltaic power generation module, a photovoltaic inverter, an electric quantity storage module, a plurality of intelligent electric meters, a server, the Internet, an electric quantity supplement module, a switch, an electric consumption load module and an EMS/AGC module;
the photovoltaic power generation module comprises a first photovoltaic power generation unit, a second photovoltaic power generation unit … and an Nth photovoltaic power generation unit, and the N photovoltaic power generation units are connected with the photovoltaic inverter through photovoltaic cables; the electric quantity storage module is connected with the photovoltaic inverter, and the photovoltaic inverter is connected with the first intelligent electric meter; the electric quantity supplementing module is connected with the photovoltaic inverter in parallel and is connected to the EMS/AGC module through a switch; the power consumption load module provided with the second intelligent electric meter is connected with the EMS/AGC module through a switch, wherein the first intelligent electric meter and the second intelligent electric meter are both connected with a server, the server is connected with the Internet, and the Internet is connected with the EMS/AGC module.
The independent power supply mode is divided into three types in the energy management system for solar power generation, namely, the direct power supply of the photovoltaic power generation module, the buffer power supply of the power storage module, the power supplement module supplies power, the combined power supply mode comprises the direct power supply of the photovoltaic power generation module, the buffer power supply of the power storage module, any two or three types of combinations in the power supplement module supply power, the diversification of the power supply mode can meet the use of a plurality of users in the power consumption load module, the requirement of sudden reduction or power increase in the short term of each power consumption user is met by flexibly changing the power supply mode, and the power supply elasticity of the photovoltaic power plant is greatly improved.
Preferably, the energy management system for solar power generation further comprises a grid-connected module connected with the photovoltaic inverter through a switch, wherein a third intelligent electric meter is installed in the grid-connected module and connected with the server.
When the demand of users in the power consumption load module is less and the electric quantity storage module is full, partial electric quantity in the photovoltaic power generation module can be merged into a national power grid through the grid-connected module to be used by users except the power consumption load module.
Preferably, the energy management system for solar power generation is characterized in that the electric quantity storage module is sequentially connected with the bidirectional inverter and the fourth intelligent electric meter, and the fourth intelligent electric meter is connected with the server.
But through the storage electric quantity in the installation fourth smart electric meter real-time supervision electric quantity storage module, be convenient for judge according to the unexpected increase of user's power consumption in the power consumption load module whether need open electric quantity supplementary module.
Preferably, an energy management system for solar energy power generation, electric quantity supplement module include diesel engine power generation unit, power plant supply unit, and diesel engine power generation unit, power plant supply unit are parallelly connected through change over switch, wherein, install fifth smart electric meter, power plant supply unit in the diesel engine power generation unit and install sixth smart electric meter, and fifth smart electric meter, sixth smart electric meter all are connected with the server.
Aiming at the sudden power increase period of the user, the photovoltaic power plant is independently arranged or shares a diesel power generation unit with a peripheral power generation factory or meets the power demand of the user in the power consumption load module by purchasing the electric quantity of a power plant supply unit.
Preferably, the energy management system for solar power generation comprises a server, a data receiving unit, a database and a data processing unit, wherein the data receiving unit is connected with each intelligent electric meter, the database and the data processing unit respectively, the data processing unit is in bidirectional connection with the database, the data receiving unit is used for receiving electric quantity data measured by a plurality of intelligent electric meters and storing the electric quantity data into the database, the database is used for storing electric quantity measurement data of each intelligent electric meter, one-to-one correspondence between the intelligent electric meters and measurement objects, power utilization strategies of users and configuration information of photovoltaic power plants, and the data processing unit receives signals of the data receiving unit, then carries out charging calculation by combining with the power utilization strategies of the users in the database, and sends calculation results to an EMS/AGC module or the photovoltaic power plants while warehousing.
Preferably, the energy management system for solar power generation further includes an electric quantity presetting unit in the server, wherein the electric quantity presetting unit is respectively connected with the database and the data processing unit. The electric quantity presetting unit is mainly used for temporarily reducing or increasing the demand of capacity and needing to reduce or improve the demand of power consumption according to the demand of power consumption users, the data processing unit is used for calculating and processing the total electric quantity and the demand of power consumption of other users according to the database, and storing and transmitting the processed result to an EMS/AGC module or a photovoltaic power plant so as to conveniently control a grid-connected module, an electric quantity storage module and an electric quantity supplementing module to be matched with each other to meet the demand of power consumption of each user and properly increase or reduce the grid-connected electric quantity. After the power consumption of a user is increased suddenly, the power in the power storage module is checked, the power supplement module can be disconnected on the basis of meeting the power consumption, the photovoltaic power generation is used for supplying power, otherwise, the power supplement module is closed, and a strategy of double-track operation of the photovoltaic power generation module and the power supplement module is implemented to ensure that the power consumption of the user is sufficient, wherein the diesel engine power generation cost and the power purchase cost of a power plant are compared, and then the diesel engine power generation unit and the power plant supply unit are switched through a change-over switch.
Preferably, in the energy management system for solar power generation, the photovoltaic inverter is a sine wave inverter. The output waveform is good, the distortion factor is very low, the interference to radio and communication equipment is small, and the noise is low. In addition, the protection function is complete, and the whole machine efficiency is high.
Preferably, the switch is a PCC fast static switch developed using thyristor fast switching characteristics.
Description of the drawings:
the embodiments are further described with reference to the accompanying drawings, in which:
fig. 1 is a schematic connection diagram of modules in an energy management system for solar power generation according to the present invention;
fig. 2 is a schematic diagram illustrating a connection between a smart meter and a server in an energy management system for solar power generation according to the present invention;
the following detailed description of the invention will be further described in conjunction with the above-identified drawings.
Detailed Description
Specific embodiment example 1:
an energy management system for solar power generation, comprising: photovoltaic power generation module, photovoltaic inverter, electric quantity storage module, a plurality of smart electric meter, server, internet, electric quantity supplement module, switch, power consumption load module, EMS AGC module:
the photovoltaic power generation module comprises a first photovoltaic power generation unit, a second photovoltaic power generation unit … and an Nth photovoltaic power generation unit, and the N photovoltaic power generation units are connected with the photovoltaic inverter through photovoltaic cables; the electric quantity storage module is connected with the photovoltaic inverter, and the photovoltaic inverter is connected with the first intelligent electric meter; the electric quantity supplementing module is connected with the photovoltaic inverter in parallel and is connected to the EMS/AGC module through a switch; the power consumption load module provided with the second intelligent electric meter is connected with the EMS/AGC module through a switch, wherein the first intelligent electric meter and the second intelligent electric meter are both connected with a server, the server is connected with the Internet, and the Internet is connected with the EMS/AGC module.
The server comprises a data receiving unit, a database and a data processing unit, wherein the data receiving unit is connected with each intelligent electric meter, the data processing unit is connected with the database and the data processing unit in a bidirectional mode, the data receiving unit is used for receiving electric quantity data measured by the intelligent electric meters and storing the electric quantity data into the database, the database is used for storing electric quantity measuring data of each intelligent electric meter, the one-to-one correspondence relation between the intelligent electric meters and measuring objects, the power utilization strategies of users and configuration information of photovoltaic power plants, and after the data processing unit receives signals of the data receiving unit, the data processing unit performs charging calculation by combining the power utilization strategies of the users in the database and sends calculation results to an EMS/AGC module or a photovoltaic power plant while warehousing. Preferably, the server further comprises an electric quantity presetting unit, wherein the electric quantity presetting unit is respectively connected with the database and the data processing unit.
Further, the photovoltaic grid-connected system further comprises a grid-connected module connected with the photovoltaic inverter through a switch, a third intelligent electric meter is installed in the grid-connected module, and the third intelligent electric meter is connected with the server.
Furthermore, the electric quantity storage module of the electric quantity storage module is sequentially connected with a bidirectional inverter and a fourth intelligent electric meter, and the fourth intelligent electric meter is connected with the server.
Further, the electric quantity supplementing module comprises a diesel engine power generation unit and a power plant supply unit which are connected in parallel through a change-over switch, wherein a fifth intelligent electric meter and a sixth intelligent electric meter are installed in the diesel engine power generation unit and the power plant supply unit, and the fifth intelligent electric meter and the sixth intelligent electric meter are connected with the server.
Alternatively, the photovoltaic inverter is a sine wave inverter. The switch uses a PCC fast static switch developed with thyristor fast switching characteristics.
The energy management system for solar power generation referred to in this embodiment has the following advantages: the power supply module can be used independently or selectively and in a combined mode according to the electric quantity requirements of users, the power supply mode is flexibly switched, and the regulation and control requirements of power consumption peaks and power consumption peaks in different periods are met; the arrangement of the electric quantity supplementing module meets different power utilization requirements of each user in the power consumption load module on the basis of considering the profit maximization of the photovoltaic power plant, and can meet the sudden increase power utilization requirements of the users; secondly, according to the price of each energy and the power supply reliability, the system automatically realizes multi-energy complementation, unattended operation and optimization of user energy cost.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. An energy management system for solar power generation, characterized by: the intelligent power supply system comprises a photovoltaic power generation module, a photovoltaic inverter, an electric quantity storage module, a plurality of intelligent electric meters, a server, the Internet, an electric quantity supplementing module, a switch, an electric consumption load module and an EMS/AGC module;
the photovoltaic power generation module comprises a first photovoltaic power generation unit, a second photovoltaic power generation unit … and an Nth photovoltaic power generation unit, and the N photovoltaic power generation units are connected with the photovoltaic inverter through photovoltaic cables; the electric quantity storage module is connected with the photovoltaic inverter, and the photovoltaic inverter is connected with the first intelligent electric meter; the electric quantity supplementing module is connected with the photovoltaic inverter in parallel and is connected to the EMS/AGC module through a switch; the power consumption load module provided with the second intelligent electric meter is connected with the EMS/AGC module through a switch, wherein the first intelligent electric meter and the second intelligent electric meter are both connected with a server, the server is connected with the Internet, and the Internet is connected with the EMS/AGC module.
2. An energy management system for solar power generation as defined in claim 1, wherein: the grid-connected module is connected with the photovoltaic inverter through a switch, a third intelligent electric meter is installed in the grid-connected module, and the third intelligent electric meter is connected with the server.
3. An energy management system for solar power generation as defined in claim 1, wherein: the electric quantity storage module is sequentially connected with the bidirectional inverter and the fourth intelligent electric meter, and the fourth intelligent electric meter is connected with the server.
4. An energy management system for solar power generation as defined in claim 1, wherein: the electric quantity supplementing module comprises a diesel engine power generation unit and a power plant supply unit which are connected in parallel through a change-over switch, wherein a fifth intelligent electric meter and a sixth intelligent electric meter are installed in the diesel engine power generation unit and the power plant supply unit, and the fifth intelligent electric meter and the sixth intelligent electric meter are connected with the server.
5. An energy management system for solar power generation as defined in claim 1, wherein: the photovoltaic inverter selects the sine wave inverter.
6. An energy management system for solar power generation as defined in claim 1, wherein: the switch uses a PCC fast static switch developed with thyristor fast switching characteristics.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920279345.3U CN210273511U (en) | 2019-03-06 | 2019-03-06 | Energy management system for solar power generation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920279345.3U CN210273511U (en) | 2019-03-06 | 2019-03-06 | Energy management system for solar power generation |
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| CN210273511U true CN210273511U (en) | 2020-04-07 |
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| CN201920279345.3U Active CN210273511U (en) | 2019-03-06 | 2019-03-06 | Energy management system for solar power generation |
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