CN220822696U - Power supply device for optical storage off-grid control system - Google Patents
Power supply device for optical storage off-grid control system Download PDFInfo
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- CN220822696U CN220822696U CN202322464707.5U CN202322464707U CN220822696U CN 220822696 U CN220822696 U CN 220822696U CN 202322464707 U CN202322464707 U CN 202322464707U CN 220822696 U CN220822696 U CN 220822696U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- 238000004146 energy storage Methods 0.000 abstract description 9
- 238000010248 power generation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 241000282412 Homo Species 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a power supply device for an optical storage off-grid control system, which relates to the technical field of new energy storage and comprises a photovoltaic module, an optical storage off-grid system, uninterruptible power supply equipment, a first switch power supply and a direct current control power supply for supplying power to the optical storage off-grid control system, wherein the photovoltaic module is connected with the optical storage off-grid system, the optical storage off-grid system is connected with the uninterruptible power supply equipment, the uninterruptible power supply equipment is connected with the first switch power supply, and the first switch power supply is connected with the direct current control power supply through a direct current bus; the optical storage off-grid system comprises an optical storage integrated machine and a battery pack, wherein the optical storage integrated machine comprises a DC/DC conversion side and a DC/AC conversion side. The utility model can improve the reliability and the power supply efficiency of the off-grid light storage control system through the load side alternating current, the photovoltaic side direct current and the photovoltaic priority mode.
Description
Technical Field
The utility model relates to the technical field of new energy storage, in particular to a power supply device for an optical storage off-grid control system.
Background
With the increasing deterioration of the earth's ecological environment, and since the beginning of the new century, humans have encountered unprecedented survival crisis, and humans have only one earth, whose ecosystem is not reproducible. Energy conservation and environmental protection have become the necessary conditions for sustainable development of human beings, and attention is being paid to the utilization and development of renewable energy sources, wherein solar power generation has become a hot spot for research in recent years, and solar energy is an energy source with low density, intermittent property and continuously changing spatial distribution. Solar energy and random fluctuation of load, battery energy storage is an important means for balancing photovoltaic output and load demand. However, the light storage off-grid micro-grid application scenario is mostly applied to remote and grid-free areas, the only source of load electricity is solar energy, and the intermittence of the solar energy is the key of energy storage configuration and cannot be completely predicted. The control power supply of the grid-connected optical storage system is provided by the equipment with UPS; when the device is applied to an off-grid scene, energy storage exhaustion occurs, the device is automatically stopped, and a UPS (uninterrupted Power supply) control power supply is exhausted immediately; the situation that the control system is unpowered and cannot start to operate the optical storage off-grid system even if illumination is met occurs later. Based on the design, the power supply device for the off-grid optical storage control system improves the reliability and the power supply efficiency of the off-grid optical storage control system through the load side alternating current, the photovoltaic side direct current and the photovoltaic priority mode according to the off-grid optical storage application scene.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art, and provides a power supply device for an off-grid light storage control system, which improves the reliability and the power supply efficiency of the off-grid light storage control system through a load side alternating current and a photovoltaic side direct current and a photovoltaic priority mode of a light storage integrated machine according to an off-grid light storage application scene.
The aim of the utility model is realized by the following technical scheme: a power supply unit for optical storage is from net control system, the device includes photovoltaic module, optical storage is from net system, uninterrupted power source equipment, first switching power source and is used for optical storage to leave net control system powered direct current control power supply, photovoltaic module is connected with optical storage is from net system, optical storage is from net system and uninterrupted power source equipment connection, uninterrupted power source equipment is connected with first switching power source, be connected through the direct current busbar between first switching power source and the direct current control power source, the direct current busbar just bears the rectification in the converter after with exchanging to direct current. The single solar cell cannot be directly used as a power supply, and the single solar cell is used as the power supply, and a plurality of single cells are connected in series and parallel and tightly packaged into a component, and the photovoltaic component (also called a solar panel) is a core part in a solar power generation system and is the most important part in the solar power generation system, so that the solar energy is converted into electric energy, and the electric energy is sent to a storage battery for storage or used for pushing a load to work. An uninterruptible power supply device is a device that allows a computer to remain on for at least a short period of time when the main power is lost, contains a battery that "boots up" when the device detects that the main power is off, and also provides power surge protection.
Further, the optical storage off-grid system comprises an optical storage integrated machine and a battery pack, the optical storage integrated machine is connected with the battery pack in parallel, the optical storage integrated machine comprises a DC/DC conversion side and a DC/AC conversion side, the photovoltaic module is connected with the DC/DC conversion side, the DC/DC conversion side is connected with the DC/AC conversion side, and the DC/AC conversion side is connected with uninterruptible power supply equipment. The light storage integrated machine is a device which is applied to a photovoltaic power generation system and used for realizing direct current/alternating current electric energy conversion, adopts a power electronic control technology, can coordinate and control the output force of a photovoltaic cell and an energy storage battery, stabilizes the power fluctuation of the photovoltaic cell, and outputs alternating current electric energy meeting the standard requirement to supply power to a load through an energy storage conversion technology, wherein a DC/DC conversion side converts direct current of a certain voltage into direct current of another voltage, and a DC/AC conversion side converts direct current electric energy into alternating current electric energy.
Preferably, a first rectifier diode is arranged between the first switching power supply and the direct current bus to play a role in preventing backflow.
Preferably, a breaker is arranged between the direct current bus and the direct current control power supply, and the breaker is used for switching off and switching on a load circuit and switching off a fault circuit, so that the accident expansion is prevented, and the safe operation is ensured.
Further, the photovoltaic module is connected with a second switching power supply, and the second switching power supply is connected with a direct current bus.
Preferably, a fuse is arranged between the photovoltaic module and the second switching power supply. The fuse consists of a melt and a melting tube, is used as a metal conductor to be connected in series in a circuit, and cuts off the current when the current exceeds a certain value, thereby achieving the protection effect.
Preferably, a second rectifier diode is arranged between the second switching power supply and the direct current bus to play a role in preventing backflow.
The beneficial effects of the utility model are as follows:
1. according to the utility model, through the synergistic effect of the photovoltaic module and the light storage integrated machine, the power supply of converting sunlight into electric energy and the conversion of direct current/alternating current electric energy are realized, the output force of the photovoltaic and the energy storage battery can be coordinated and controlled, the power fluctuation of the photovoltaic battery is stabilized, and the alternating current electric energy meeting the standard requirement is output through the energy storage conversion technology to supply power to a load.
2. When the device detects that the main power supply is powered off, the uninterruptible power supply device is "started" to supply power, remains running for at least a short period of time, and provides power surge protection.
3. When sunlight is available, the photovoltaic module converts photovoltaic into electric energy to supply power, the electric energy is converted into DC25V control power through the second switching power supply, redundant electric energy is stored in the battery pack to be stored, when no sunlight is available, the electric energy stored in the battery pack is used for supplying power, the electric energy is converted into DC24V control power through the first switching power supply, and stable operation and reliability of DC 23V-DC 24V direct current control power of the optical storage off-grid micro-grid control system are guaranteed.
4. Because the first switching power supply and the second switching power supply are respectively connected with the first rectifying diode and the second rectifying diode, the DC25V control power supply can supply power to the optical storage off-grid control system preferentially, and a photovoltaic preferential power supply mode is formed.
Drawings
FIG. 1 is a schematic diagram of a circuit structure of the present utility model;
In the figure: UR 1-first switching power supply, UR 2-second switching power supply, PV-photovoltaic module, UPS-uninterrupted power supply equipment, D1-first rectifier diode, D2-second rectifier diode, QF-circuit breaker, FU-fuse.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model is further described with reference to the drawings and specific examples.
Example 1:
As shown in fig. 1, a power supply device for an optical storage off-grid control system comprises a photovoltaic module PV, an optical storage off-grid system, an uninterruptible power supply device UPS, a first switching power supply UR1 and a direct current control power supply for supplying power to the optical storage off-grid control system, wherein the photovoltaic module PV is connected with the optical storage off-grid system, the optical storage off-grid system is connected with the uninterruptible power supply device UPS, the uninterruptible power supply device UPS is connected with the first switching power supply UR1, the first switching power supply UR1 is converted into a DC24V control power supply, and the first switching power supply UR1 is connected with the direct current control power supply through a direct current bus to output DC 23V-DC 24V direct current control power supplies.
The light stores up from net system including light stores up all-in-one and battery package, light stores up all-in-one and carries out parallelly connected with the battery package, and light stores up all-in-one and includes DC/DC conversion side and DC/AC conversion side, and photovoltaic module is connected with DC/DC conversion side, forms photovoltaic side direct current, and DC/DC conversion side is connected with DC/AC conversion side, forms load side alternating current, and DC/AC conversion side is connected with uninterrupted power source equipment UPS. When no sunlight irradiates, the whole system DC24V control power supply is provided by the electric energy stored in the battery pack, and the output electricity ensures the stable operation and reliability of the DC 23V-DC 24V direct current control power supply of the optical storage off-grid micro-grid control system. When a power failure is detected, the uninterruptible power supply device UPS is "started" to supply power, keeps running for at least a short period of time, and provides power supply surge protection.
Example 2:
on the basis of embodiment 1, a first rectifier diode D1 is provided between the first switching power source UR1 and the dc bus, and functions as an anti-backflow function.
Example 3:
A circuit breaker QF was provided between the dc bus and the dc control power supply on the basis of embodiment 1. When the circuit exceeds load or fails, the circuit breaker QF cuts off the circuit, so that the accident is prevented from expanding, and the safe operation is ensured.
Example 4:
On the basis of the embodiments 1-3, the photovoltaic module PV is connected to a second switching power supply UR2, which is converted into a DC25V control power supply by the second switching power supply UR2, the second switching power supply UR2 being connected to a DC bus.
A fuse FU is arranged between the photovoltaic module PV and the second switching power supply UR2 for protecting the current.
A second rectifier diode D2 is arranged between the second switching power supply UR2 and the direct current bus, and the anti-backflow function is achieved. When sunlight is not applied, the electric energy stored in the battery pack is supplied, the first switching power supply is converted into the DC24V control power supply, and the stable operation and the reliability of the DC 23V-DC 24V direct current control power supply of the optical storage off-grid micro-grid control system are ensured. Because the photovoltaic module PV directly supplies power through the second switching power supply UR2, the power supply time is shortened, and the power supply efficiency is improved.
The foregoing is merely a preferred embodiment of the utility model, and it is to be understood that the utility model is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.
Claims (6)
1. A power supply unit for optical storage off-grid control system, its characterized in that: the photovoltaic module is connected with the optical storage off-grid system, the optical storage off-grid system is connected with the uninterruptible power supply equipment, the uninterruptible power supply equipment is connected with the first switching power supply, and the first switching power supply is connected with the direct current control power supply through a direct current bus;
The light stores up from net system including light stores up all-in-one and battery package, light stores up all-in-one and battery package and connects in parallel, light stores up all-in-one and includes DC/DC conversion side and DC/AC conversion side, photovoltaic module is connected with DC/DC conversion side, DC/DC conversion side is connected with DC/AC conversion side, DC/AC conversion side is connected with uninterruptible power supply equipment.
2. A power supply device for an optical storage off-grid control system according to claim 1, characterized in that: a first rectifier diode is arranged between the first switching power supply and the direct current bus.
3. A power supply device for an optical storage off-grid control system according to claim 1, characterized in that: and a breaker is arranged between the direct current bus and the direct current control power supply.
4. A power supply device for an optical storage off-grid control system according to claim 1, characterized in that: the photovoltaic module is connected with a second switching power supply, and the second switching power supply is connected with a direct current bus.
5. The power supply device for an optical storage off-grid control system according to claim 4, wherein: and a fuse is arranged between the photovoltaic module and the second switching power supply.
6. The power supply device for an optical storage off-grid control system according to claim 4, wherein: and a second rectifier diode is arranged between the second switching power supply and the direct current bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322464707.5U CN220822696U (en) | 2023-09-11 | 2023-09-11 | Power supply device for optical storage off-grid control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322464707.5U CN220822696U (en) | 2023-09-11 | 2023-09-11 | Power supply device for optical storage off-grid control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220822696U true CN220822696U (en) | 2024-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322464707.5U Active CN220822696U (en) | 2023-09-11 | 2023-09-11 | Power supply device for optical storage off-grid control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220822696U (en) |
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2023
- 2023-09-11 CN CN202322464707.5U patent/CN220822696U/en active Active
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