CN110718958A - Movable intelligent photovoltaic micro-grid power generation system - Google Patents
Movable intelligent photovoltaic micro-grid power generation system Download PDFInfo
- Publication number
- CN110718958A CN110718958A CN201911041268.9A CN201911041268A CN110718958A CN 110718958 A CN110718958 A CN 110718958A CN 201911041268 A CN201911041268 A CN 201911041268A CN 110718958 A CN110718958 A CN 110718958A
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- load
- controller
- storage battery
- energy storage
- direct current
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- 238000010248 power generation Methods 0.000 title claims abstract description 17
- 238000004146 energy storage Methods 0.000 claims abstract description 32
- 238000012545 processing Methods 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 12
- 230000002457 bidirectional effect Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 2
- 210000004027 cell Anatomy 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000000352 storage cell Anatomy 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
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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
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/40—Mobile PV generator systems
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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
Abstract
The invention provides a movable intelligent photovoltaic microgrid power generation system which comprises a solar cell panel, a controller and a load, wherein the solar cell panel, the controller and the load are sequentially connected; the electric energy generated by the solar panel provides electric energy for the load or is stored in the energy storage battery after passing through the controller, and the electric energy in the energy storage battery can supply power for the load after passing through the controller. The invention adopts a modular design, can be carried on an automobile, a ship and an airplane for long-distance transportation, is quickly assembled after reaching a destination, and is quickly networked for use; the generated electricity can also provide electric energy for the carrier; and according to different actual power requirements and electricity utilization environments, the movable emergency power supply can be formed by expansion or a small-sized microgrid system can be formed by expansion.
Description
Technical Field
The invention belongs to the technical field of power generation, and particularly relates to a movable intelligent photovoltaic micro-grid power generation system.
Background
Under the background that non-renewable energy sources are gradually exhausted, but economy is continuously developed and the demand for energy sources is increasingly increased, renewable energy sources are increasingly paid more attention. Solar energy is an inexhaustible renewable energy source, has the advantages of sufficient cleanness, absolute safety, relative universality, reliable long service life, maintenance-free property, resource sufficiency, potential economy and the like, and has an important position in a long-term energy strategy.
With the acceleration of urbanization process in China and urgent demand for electricity, the development of a power supply system tends to be more and more stable and efficient. However, problems still remain to be solved, such as power supply problem in areas without power supply system, difficult and insufficient power supply problem for residents in remote mountainous areas or islands, how to supply electric energy due to power supply system damage caused by geological disasters, and power supply problem in special application occasions such as island battle, aerospace, etc. In recent years, scholars at home and abroad have active research on application of photovoltaic power generation technology. Under the condition that the problems cannot be effectively solved by simply increasing the number of the solar panels, how to improve the utilization rate of solar energy and how to construct a new solar energy utilization mode becomes a new research trend. Micro-grids are of increasing interest as one form of power generation. With the development of scientific technology, the photovoltaic power generation technology must play an increasingly important role in national economic construction in China.
Disclosure of Invention
In order to solve the technical problems, the invention provides a movable intelligent photovoltaic microgrid power generation system, which is constructed by applying a photovoltaic power generation technology to an independent microgrid system and combining an intelligent power grid technology and an energy storage technology.
The specific technical scheme is as follows:
a movable intelligent photovoltaic micro-grid power generation system comprises a solar cell panel, a controller and a load which are connected in sequence, wherein an energy storage battery is also connected with the controller;
the electric energy generated by the solar panel provides electric energy for the load or is stored in the energy storage battery after passing through the controller, and the electric energy in the energy storage battery can supply power for the load after passing through the controller.
The load comprises a direct current load and an alternating current load.
The controller comprises a tracking controller, a DC/DC converter, a bidirectional DC/DC converter, a DC/AC inverter and a central processing unit;
the solar cell panel is electrically connected with the direct current bus through the DC/DC converter, and the direct current bus is respectively and electrically connected with the direct current load and the tracking controller; the direct current bus is also electrically connected with an alternating current load through a DC/AC inverter and is also electrically connected with an energy storage battery through a bidirectional DC/DC converter;
the central processing unit is in communication connection with a sunlight sensor on the solar cell panel, the tracking controller is also in communication connection with the tracking controller, and the tracking controller is in communication connection with the sunlight sensor; the central processing unit acquires the height and the angle of the sun and feeds the height and the angle back to the tracking controller, and the tracking controller controls the solar panel to rotate;
the central processing unit is also respectively in communication connection with the direct current load, the alternating current load and the energy storage battery; the central processing unit controls the energy storage battery to provide electric energy for the load by collecting and processing the generated energy of the solar cell panel, the load power of the alternating current load and the direct current load and the residual quantity of the electric quantity of the energy storage battery.
The movable intelligent photovoltaic micro-grid power generation system can provide electric energy for areas without power supply or insufficient power supply; has the following technical advantages:
(1) the modular design is adopted, the device can be carried on an automobile, a ship and an airplane for long-distance transportation, can be quickly assembled after arriving at a destination, and can be quickly networked for use; the generated electricity can also provide electric energy for the carrier;
(2) according to different actual power requirements and electricity utilization environments, the movable emergency power supply can be formed through expansion, or the small-sized microgrid system can be formed through expansion.
Drawings
FIG. 1 is a block diagram of the present invention;
fig. 2 is a detailed block diagram of the structure of the present invention.
Detailed Description
The specific technical scheme of the invention is explained by combining the attached drawings.
As shown in fig. 1, the movable intelligent photovoltaic microgrid power generation system comprises a solar cell panel, a controller and a load which are connected in sequence, wherein an energy storage cell is also connected with the controller;
the electric energy generated by the solar panel provides electric energy for the load or is stored in the energy storage battery after passing through the controller, and the electric energy in the energy storage battery can supply power for the load after passing through the controller.
The load comprises a direct current load and an alternating current load.
As shown in fig. 2, the controller includes a tracking controller, a DC/DC converter, a bidirectional DC/DC converter, a DC/AC inverter, and a central processing unit;
the solar cell panel is electrically connected with the direct current bus through the DC/DC converter, and the direct current bus is respectively and electrically connected with the direct current load and the tracking controller; the direct current bus is also electrically connected with an alternating current load through a DC/AC inverter and is also electrically connected with an energy storage battery through a bidirectional DC/DC converter;
the central processing unit is in communication connection with a sunlight sensor on the solar cell panel, the tracking controller is also in communication connection with the tracking controller, and the tracking controller is in communication connection with the sunlight sensor; the central processing unit acquires the height and the angle of the sun and feeds the height and the angle back to the tracking controller, and the tracking controller controls the solar panel to rotate;
the central processing unit is also respectively in communication connection with the direct current load, the alternating current load and the energy storage battery; the central processing unit controls the energy storage battery to provide electric energy for the load by collecting and processing the generated energy of the solar cell panel, the load power of the alternating current load and the direct current load and the residual quantity of the electric quantity of the energy storage battery.
The electric energy generated by the solar panel can provide electric energy for the load or be stored in the energy storage battery after passing through the controller, and the electric energy in the energy storage battery can supply power for the load after passing through the controller.
Power flow within the system: the solar panel absorbs solar energy and generates electric energy, the generated electric energy is accessed to the direct current bus through the DC/DC converter, and the electric energy can be directly supplied to a direct current load or a tracking controller, and can also be inverted into 50Hz alternating current through the DC/AC inverter to supply power to an alternating current load; and the electric energy generated by the solar panel can be stored in the energy storage battery through the bidirectional DC/DC converter. The electric energy in the energy storage battery is accessed to the direct current bus through the bidirectional DC/DC converter, and not only can be directly used for supplying power to the direct current load and the tracking controller, but also can be used for inverting the direct current into 50Hz alternating current through the DC/AC inverter to supply power to the alternating current load.
Signal flow within the system: the central processing unit obtains the height and the angle of the sun through a sunlight sensor on the solar cell panel, feeds the height and the angle back to the tracking controller and controls the solar cell panel to rotate. The central processing unit controls the energy storage battery to provide electric energy for the load by collecting and processing the generated energy of the solar cell panel, the load power (including alternating current load and direct current load) and the residual quantity of the electric quantity of the energy storage battery.
In particular to a control method of the movable intelligent photovoltaic micro-grid power generation system,
when the electric energy generated by the solar panel is greater than the load demand, the solar panel directly supplies power to the load, and the redundant electric energy charges the energy storage battery;
when the electric energy generated by the solar panel is less than the load demand, the shortage of the solar panel for supplying power to the load is supplemented by the energy storage battery for supplying power to the load.
Claims (3)
1. A movable intelligent photovoltaic micro-grid power generation system is characterized by comprising a solar cell panel, a controller and a load which are sequentially connected, wherein an energy storage battery is also connected with the controller;
the electric energy generated by the solar panel provides electric energy for the load or is stored in the energy storage battery after passing through the controller, and the electric energy in the energy storage battery can supply power for the load after passing through the controller.
2. The portable intelligent photovoltaic microgrid power generation system of claim 1, characterized in that the loads comprise direct current loads and alternating current loads.
3. The portable intelligent photovoltaic microgrid power generation system of claim 2, wherein the controller comprises a tracking controller, a DC/DC converter, a bidirectional DC/DC converter, a DC/AC inverter, a central processing unit;
the solar cell panel is electrically connected with the direct current bus through the DC/DC converter, and the direct current bus is respectively and electrically connected with the direct current load and the tracking controller; the direct current bus is also electrically connected with an alternating current load through a DC/AC inverter and is also electrically connected with an energy storage battery through a bidirectional DC/DC converter;
the central processing unit is in communication connection with a sunlight sensor on the solar cell panel, the tracking controller is also in communication connection with the tracking controller, and the tracking controller is in communication connection with the sunlight sensor; the central processing unit acquires the height and the angle of the sun and feeds the height and the angle back to the tracking controller, and the tracking controller controls the solar panel to rotate;
the central processing unit is also respectively in communication connection with the direct current load, the alternating current load and the energy storage battery; the central processing unit controls the energy storage battery to provide electric energy for the load by collecting and processing the generated energy of the solar cell panel, the load power of the alternating current load and the direct current load and the residual quantity of the electric quantity of the energy storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911041268.9A CN110718958A (en) | 2019-10-30 | 2019-10-30 | Movable intelligent photovoltaic micro-grid power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911041268.9A CN110718958A (en) | 2019-10-30 | 2019-10-30 | Movable intelligent photovoltaic micro-grid power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110718958A true CN110718958A (en) | 2020-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911041268.9A Pending CN110718958A (en) | 2019-10-30 | 2019-10-30 | Movable intelligent photovoltaic micro-grid power generation system |
Country Status (1)
| Country | Link |
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| CN (1) | CN110718958A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206557616U (en) * | 2017-03-15 | 2017-10-13 | 山东信友电器有限公司 | A kind of photovoltaic autotracking power generation monitoring system of Internet of Things framework |
| CN107310422A (en) * | 2017-07-24 | 2017-11-03 | 曲阜师范大学 | Family uses up storage formula off-network charging pile |
-
2019
- 2019-10-30 CN CN201911041268.9A patent/CN110718958A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206557616U (en) * | 2017-03-15 | 2017-10-13 | 山东信友电器有限公司 | A kind of photovoltaic autotracking power generation monitoring system of Internet of Things framework |
| CN107310422A (en) * | 2017-07-24 | 2017-11-03 | 曲阜师范大学 | Family uses up storage formula off-network charging pile |
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Application publication date: 20200121 |
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