CN113098104A - Group string EL test lithium battery system - Google Patents
Group string EL test lithium battery system Download PDFInfo
- Publication number
- CN113098104A CN113098104A CN202110433825.2A CN202110433825A CN113098104A CN 113098104 A CN113098104 A CN 113098104A CN 202110433825 A CN202110433825 A CN 202110433825A CN 113098104 A CN113098104 A CN 113098104A
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- Prior art keywords
- power
- pud
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- box
- lithium battery
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 45
- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 210000001503 joint Anatomy 0.000 claims abstract 2
- 238000004891 communication Methods 0.000 claims description 10
- 238000004146 energy storage Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000446 fuel Substances 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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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
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The utility model provides a group's cluster EL test lithium cell system, includes lithium cell group, PUD high-voltage box, DC power and collection flow box, lithium cell group link to each other with the PUD high-voltage box, the PUD high-voltage box links to each other with the DC power, the output cable of DC power and the group's cluster interface butt joint of collection flow box to supply power to the collection flow box. Compare in current EL test system, this group's string EL test lithium cell system power supply is stable, it has not undulant basically to have guaranteed electric current and voltage through the power supply scheme that adopts lithium cell group + DC power, the output is steady, and compare in current fuel generator test system, this group's string EL test system is quiet noiseless, the power station does not have the potential safety hazard of adding the fuel, the cost is lower, economic efficiency is higher, in addition the interior BMS battery management system of PUD high-voltage box can conveniently perceive, read, show the performance status and the suggestion etc. that charges of each module and lithium cell group, whole group's string EL test system's security has been guaranteed.
Description
Technical Field
The invention belongs to the field of new energy electric power, and particularly relates to a string EL test lithium battery system.
Background
With the continuous expansion of the types of photovoltaic power stations, the existing photovoltaic power stations are developed from single ground power stations to photovoltaic + agriculture, photovoltaic + animal husbandry, photovoltaic + fishery and the like, and the current supply to components or strings by utilizing the former two modes gradually becomes the bottleneck of EL test.
At present, the operation and maintenance EL test service of a photovoltaic power station mainly adopts the following two modes: (1) a low-power portable storage battery is adopted to electrify the camera to take a picture of the single-block assembly; (2) adopt diesel generator + portable group cluster portable power source to give the group cluster power supply, adopt fixed camera or unmanned aerial vehicle to shoot. However, these two approaches have different disadvantages: the first mode needs 2-3 persons for matching test, has low overall efficiency, cannot be popularized and applied in a large scale, has low economic benefit and has high difficulty in developing paid operation and maintenance service; the second mode has higher efficiency, but the diesel engine is adopted to generate electricity, so that the noise and the vibration are large, potential safety hazards exist in a power station during fuel adding operation, and the cost is relatively higher than that of a lithium battery. In summary, there is a need to design and develop a fast and safe group-string power-on method to solve the power-on problem of the EL test module matrix.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a string EL test lithium battery system which comprises a lithium battery pack, a PUD high-voltage box, a DC power supply and a combiner box, wherein the lithium battery pack is connected with the PUD high-voltage box, the PUD high-voltage box is connected with the DC power supply, the PUD high-voltage box comprises a charging protection circuit, a discharging protection circuit, a BMS management system and an insulation detection circuit, an output cable of the DC power supply is butted with a string interface of the combiner box and supplies power to the combiner box, and the combiner box is used for being matched with an unmanned aerial vehicle to carry out EL test.
In order to facilitate the transportation of the lithium battery PACK and ensure that the whole EL testing system has sufficient power supply capacity, further, the lithium battery PACK is composed of three lithium batteries PACK connected in series, and the power supply capacity of the whole lithium battery PACK is 15 KWh.
Furthermore, the PUD high-voltage box is also connected with an external charger, and the charger is used for charging the lithium battery pack without electricity.
In order to ensure that the lithium battery pack power supply can meet the use requirement of the string EL test system, further, the connection mode between the PUD high-voltage box and the DC power supply comprises communication connection and electrical connection.
Furthermore, the communication connection is an RS485 serial port communication connection.
Furthermore, the lithium battery pack can be replaced by any one of a mobile power supply vehicle, a mobile or vehicle-mounted energy storage container, an energy storage power supply for ship transportation, a photovoltaic power station provided with an energy storage system and a new energy electric vehicle to supply power to the whole EL test system.
To facilitate transfer testing of the entire EL testing system, further, the lithium battery pack, the PUD high voltage box and the DC power supply are mounted on a movable platform device, including but not limited to a tricycle device, a terrain vehicle device, an off-road vehicle device, an amphibious vehicle device, and a boat device.
Has the advantages that: the invention discloses a string EL test lithium battery system, which has the advantages that compared with the existing EL test system: (1) the whole series EL test system is stable in power supply, and the power supply scheme of the lithium battery pack and the DC power supply is adopted, so that the current and the voltage are basically free of fluctuation, and the output is stable; (2) compared with a fuel generator test system, the series EL test system is quiet and noiseless, the power station has no potential safety hazard of fuel addition, the cost is lower, and the economic efficiency is higher; (3) the BMS battery management system in the PUD high-voltage box can conveniently sense, read and display the performance states, charging prompts and the like of each module and the lithium battery pack, and the safety of the whole string EL test system is guaranteed.
Drawings
FIG. 1 is a schematic diagram of a string EL test lithium battery system;
detailed description of the preferred embodiments
For the purpose of enhancing the understanding of the present invention, the present invention will be described in further detail with reference to the following examples and the accompanying drawings, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.
As shown in figure 1, a group's string EL test lithium cell system includes lithium cell group, PUD high-voltage box, DC power and collection flow box, lithium cell group link to each other with the PUD high-voltage box, PUD high-voltage box link to each other with the DC power to include charge protection circuit, discharge protection circuit, BMS management system and insulating detection circuit in the PUD high-voltage box, the output cable of DC power docks with the group's string interface that converges the flow box to supplying power to the collection flow box, the collection flow box be used for cooperating unmanned aerial vehicle to carry out the EL test.
In order to facilitate the transportation of the lithium battery PACK and ensure that the entire EL testing system has sufficient power supply capacity, in this embodiment, the lithium battery PACK is composed of three lithium batteries PACK connected in series, and the power supply capacity of the entire lithium battery PACK is 15 KWh.
In this embodiment, the PUD high-voltage box is further connected to an external charger, and the charger is used for charging a lithium battery pack without electricity.
In order to guarantee that the lithium battery pack power supply can meet the use requirement of the string EL test system, in the embodiment, the connection mode between the PUD high-voltage box and the DC power supply comprises communication connection and electrical connection, and the communication connection is RS485 serial port communication connection.
In this embodiment, the lithium battery pack can be replaced by any one of a mobile power supply vehicle, a mobile or vehicle-mounted energy storage container, an energy storage power supply for ship transportation, a photovoltaic power station provided with an energy storage system and a new energy electric vehicle, and the power supply device supplies power to the whole EL testing system.
In order to facilitate the transfer test of the entire EL testing system, in this embodiment, the lithium battery pack, the PUD high-voltage box and the DC power supply are fixed on a movable platform device, which includes but is not limited to a tricycle device, a terrain vehicle device, an off-road vehicle device, an amphibious vehicle device and a boat device.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a group's cluster EL test lithium battery system, a serial communication port, include lithium cell group, PUD high-voltage box, DC power and collection flow box, lithium cell group link to each other with the PUD high-voltage box, PUD high-voltage box link to each other with the DC power to include charge protection circuit, discharge protection circuit, BMS management system and insulating detection circuit in the PUD high-voltage box, the output cable of DC power and the group's cluster interface butt joint of collection flow box to supply power to the collection flow box, the collection flow box be used for cooperating unmanned aerial vehicle to carry out the EL test.
2. The battery system of claim 1, wherein the lithium battery PACK comprises three lithium batteries PACK connected in series, and the total power supply for the lithium battery PACK is 15 KWh.
3. The battery string EL testing lithium battery system of claim 1, wherein the PUD high voltage tank is further connected to an external charger configured to charge a dead lithium battery pack.
4. The battery system of claim 1, wherein the connection between the PUD high voltage tank and the DC power source comprises a communication connection and an electrical connection.
5. The battery system of claim 4, wherein the communication link is an RS485 serial communication link.
6. The battery system of claim 1, wherein the battery pack is replaceable with any one of a mobile power cart, a mobile or vehicle-mounted energy storage container, a marine energy storage source, a photovoltaic plant equipped with an energy storage system, and a new energy electric vehicle to provide power to the EL testing system.
7. The battery system of claim 1, wherein the lithium battery pack, the PUD high voltage tank, and the DC power source are mounted on a mobile platform device, wherein the platform device includes but is not limited to a tricycle device, a terrain vehicle device, an off-road vehicle device, an amphibious vehicle device, and a boat equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110433825.2A CN113098104A (en) | 2021-04-22 | 2021-04-22 | Group string EL test lithium battery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110433825.2A CN113098104A (en) | 2021-04-22 | 2021-04-22 | Group string EL test lithium battery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113098104A true CN113098104A (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110433825.2A Pending CN113098104A (en) | 2021-04-22 | 2021-04-22 | Group string EL test lithium battery system |
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| Country | Link |
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| CN (1) | CN113098104A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078357A (en) * | 2012-03-09 | 2013-05-01 | 柴冬燕 | Intelligent vehicle-mounted high-voltage power distribution management unit for electric vehicle |
| US20150229269A1 (en) * | 2014-02-07 | 2015-08-13 | James Rand | Method and equipment for testing photovoltaic arrays |
| CN106740575A (en) * | 2016-12-28 | 2017-05-31 | 郑州日产汽车有限公司 | Integrated new-energy automobile high voltage distribution box with CAN signal feedback |
| CN110571482A (en) * | 2019-08-19 | 2019-12-13 | 安徽安天锂能科技有限公司 | High-voltage distribution box for battery pack and control method thereof |
| CN111262429A (en) * | 2020-03-17 | 2020-06-09 | 阳光电源股份有限公司 | Direct current conversion circuit and photovoltaic inverter |
| CN111572436A (en) * | 2020-06-13 | 2020-08-25 | 浙江吉鑫祥叉车制造有限公司 | Mobile power supply vehicle |
| CN212380457U (en) * | 2020-06-16 | 2021-01-19 | 比亚迪股份有限公司 | Battery system and vehicle |
| CN112583351A (en) * | 2019-09-29 | 2021-03-30 | 华为技术有限公司 | Inverter, combiner box and photovoltaic system |
-
2021
- 2021-04-22 CN CN202110433825.2A patent/CN113098104A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078357A (en) * | 2012-03-09 | 2013-05-01 | 柴冬燕 | Intelligent vehicle-mounted high-voltage power distribution management unit for electric vehicle |
| US20150229269A1 (en) * | 2014-02-07 | 2015-08-13 | James Rand | Method and equipment for testing photovoltaic arrays |
| CN106740575A (en) * | 2016-12-28 | 2017-05-31 | 郑州日产汽车有限公司 | Integrated new-energy automobile high voltage distribution box with CAN signal feedback |
| CN110571482A (en) * | 2019-08-19 | 2019-12-13 | 安徽安天锂能科技有限公司 | High-voltage distribution box for battery pack and control method thereof |
| CN112583351A (en) * | 2019-09-29 | 2021-03-30 | 华为技术有限公司 | Inverter, combiner box and photovoltaic system |
| CN111262429A (en) * | 2020-03-17 | 2020-06-09 | 阳光电源股份有限公司 | Direct current conversion circuit and photovoltaic inverter |
| CN111572436A (en) * | 2020-06-13 | 2020-08-25 | 浙江吉鑫祥叉车制造有限公司 | Mobile power supply vehicle |
| CN212380457U (en) * | 2020-06-16 | 2021-01-19 | 比亚迪股份有限公司 | Battery system and vehicle |
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