CN112510731A - Modular energy storage system and energy storage cabinet - Google Patents
Modular energy storage system and energy storage cabinet Download PDFInfo
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- CN112510731A CN112510731A CN202011500953.6A CN202011500953A CN112510731A CN 112510731 A CN112510731 A CN 112510731A CN 202011500953 A CN202011500953 A CN 202011500953A CN 112510731 A CN112510731 A CN 112510731A
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- Prior art keywords
- energy storage
- modular
- storage cabinet
- modularization
- temperature
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Battery Mounting, Suspending (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a modular energy storage system, comprising: modularization high-voltage box, modularization converter, modularization battery box, AC circuit breaker, direct current breaker, distribution device and isolation transformer, wherein, the distribution lines process AC circuit breaker inserts respectively the AC side of modularization converter with the switch upper reaches of distribution device, the direct current side of modularization converter inserts the direct current breaker upper reaches is connected, direct current breaker low reaches inserts modularization high-voltage box, high-voltage box inserts modularization battery box, modularization battery box passes through total positive line and total negative line access high-voltage box. The invention improves the integration speed of the system and the replacement efficiency when a fault occurs through the modular design, improves the deployment capability of the system through the cabinet type design, and can be quickly used for the deployment implementation of the energy storage system in the user side energy storage application scenes such as industrial and commercial buildings.
Description
Technical Field
The invention relates to the technical field of energy storage, in particular to a modular energy storage system and an energy storage cabinet.
Background
In recent years, with the application of energy storage technology in more and more scenes, container type energy storage systems have been unable to meet the indoor energy storage configuration requirements of buildings and the like in industrial and commercial use scenes.
The traditional energy storage container faces to a power generation side and a power grid side, and when the traditional energy storage container faces to a user side, although the configuration mode of directly reducing transformers can electrically meet the use requirements of the user, the traditional energy storage container can cause the defect of low space utilization rate of the original standard product. And because the container body is bulky, too heavy, the flexibility ratio is low, it is unfavorable for even can't make it implement and deploy in existing block terminal or parking area in the industrial and commercial building. Compared with an energy storage device used outdoors, the household energy storage cabinet has higher requirements on safety, and the safety is mainly embodied in two aspects, namely, the potential safety hazard of an energy storage system is reduced by reducing the capacity of an energy storage battery, and sufficient fire safety measures are needed, so that the fire condition after the battery is on fire can be timely extinguished under emergency conditions, and the safety of field personnel and property is ensured.
Disclosure of Invention
In order to solve at least one of the above technical problems, the present disclosure provides a modular energy storage system and an energy storage cabinet.
In a first aspect, an embodiment of the present invention provides a modular energy storage system, where the energy storage system includes: modularization high-voltage box, modularization converter, modularization battery box, AC circuit breaker, direct current breaker, distribution device and isolation transformer, wherein, the distribution lines process AC circuit breaker inserts respectively the AC side of modularization converter with the switch upper reaches of distribution device, the direct current side of modularization converter inserts the direct current breaker upper reaches is connected, direct current breaker low reaches inserts modularization high-voltage box, high-voltage box inserts modularization battery box, modularization battery box passes through total positive line and total negative line access high-voltage box.
Optionally, the modular energy storage system is provided with a plurality of modular battery boxes, the modular battery boxes are connected in series with each other, and after being connected in series, the modular battery boxes are connected into the high-voltage box through a main positive line and a main negative line.
Optionally, a heavy fire protection system is disposed within the modular battery box, the heavy fire protection system including an aerosol canister, a first temperature sensor, and a first smoke sensor; the first temperature sensor is used for detecting the temperature in the modular battery box, the first smoke sensor is used for detecting the smoke in the modular battery box, and the aerosol can is used for ejecting the aerosol when the temperature in the modular battery box reaches a first temperature threshold value and/or the smoke reaches a first concentration threshold value
Optionally, the high voltage tank is provided with a fuse and a contactor.
In a second aspect, the invention provides a modular energy storage cabinet, which comprises a cabinet body and the modular energy storage system of any one of the first aspect, wherein the modular energy storage system is mounted inside the cabinet body.
Optionally, a double fire fighting system is arranged in the energy storage cabinet, and the double fire fighting system comprises a gas cylinder, a second temperature sensor and a second smoke sensor; the second temperature sensor is used for detecting the temperature in the energy storage cabinet, the second smoke sensor is used for detecting smoke in the energy storage cabinet, and the gas cylinder is used for injecting fire-fighting gas when the temperature in the energy storage cabinet reaches a second temperature threshold value and/or the smoke reaches a second concentration threshold value.
Optionally, the cylinder is a heptafluoropropane cylinder.
Optionally, a gas cylinder mounting part is arranged in the energy storage cabinet and used for mounting the gas cylinder.
Optionally, be provided with the air conditioner in the energy storage cabinet and be used for the installation the air conditioner installation department of air conditioner works as the temperature in the energy storage cabinet reaches the third temperature threshold value or the difference in temperature starts when reaching first difference in temperature threshold value the air conditioner, and the temperature falls to fourth temperature threshold value or the difference in temperature and closes the air conditioner when falling to the second difference in temperature threshold value.
Optionally, when the energy storage cabinet is an isolation type, the energy storage cabinet further includes an isolation transformer, and the distribution line is connected to the ac circuit breaker after passing through the isolation transformer.
Compared with the prior art, the invention has at least the following beneficial effects:
aiming at the problems of single fire fighting mode, low replacement and maintenance efficiency and poor deployment flexibility in the prior energy storage technology, the invention ensures the safety and reliability of the system through the double fire fighting modes of the battery box and the energy storage cabinet, improves the integration speed of the system and the replacement efficiency when a fault occurs through the modular design, improves the deployment capability of the system through the cabinet type design, and can be quickly used for the deployment implementation of the energy storage system in the user side energy storage application scenes of industrial and commercial buildings and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a dual prefabricated fire-fighting modular household energy storage cabinet according to an embodiment of the present invention;
FIG. 2 is an electrical schematic diagram of a dual prefabricated fire-fighting modular household energy storage cabinet according to an embodiment of the present invention;
the system comprises a high-voltage modularized box, a high-voltage.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
An embodiment of the present invention provides a modular energy storage system, including: modularization high-voltage box, modularization converter, modularization battery box, AC circuit breaker, direct current breaker and distribution device, wherein, the distribution lines process AC circuit breaker inserts respectively the AC side of modularization converter with the switch upper reaches of distribution device, the direct current side of modularization converter inserts the direct current breaker upper reaches, direct current breaker lower reaches inserts modularization high-voltage box, the access of modularization high-voltage box modularization battery box.
In one embodiment of the invention, the modular energy storage system is provided with a plurality of modular battery boxes, the modular battery boxes are connected in series with each other, and after being connected in series, the modular battery boxes are respectively connected into a total positive output terminal and a total negative output terminal of the high-voltage box through a total positive line and a total negative line.
In this embodiment, the number of the modular battery boxes can be set according to actual requirements.
In one embodiment of the invention, a heavy fire protection system is disposed within the modular battery box, the heavy fire protection system including an aerosol canister, a first temperature sensor, and a first smoke sensor; the first temperature sensor is used for detecting the temperature in the modular battery box, the first smoke sensor is used for detecting smoke in the modular battery box, and the aerosol can is used for ejecting aerosol when the temperature in the modular battery box reaches a first temperature threshold value and/or the smoke reaches a first concentration threshold value.
In this embodiment, the first temperature threshold and the first concentration threshold may be set according to actual conditions.
In one embodiment of the invention, the modular high voltage tank is provided with a fuse and a contactor connected to each other.
The embodiment of the invention also provides a modular energy storage cabinet, which comprises a cabinet body and the modular energy storage system provided by the invention, wherein the modular energy storage system is arranged in the cabinet body.
In one embodiment of the invention, a double fire protection system is arranged in the energy storage cabinet, and comprises a gas cylinder, a second temperature sensor and a second smoke sensor; the second temperature sensor is used for detecting the temperature in the energy storage cabinet, the second smoke sensor is used for detecting smoke in the energy storage cabinet, and the gas cylinder is used for injecting fire-fighting gas when the temperature in the energy storage cabinet reaches a second temperature threshold value and/or the smoke reaches a second concentration threshold value.
In this embodiment, the second temperature threshold and the second concentration threshold may be set according to actual conditions.
In one embodiment of the invention, the cylinder is a heptafluoropropane cylinder.
In this embodiment, heptafluoropropane is used as the fire extinguishing material, while in other embodiments other fire extinguishing materials may be used.
In one embodiment of the invention, a gas cylinder mounting part is arranged in the energy storage cabinet and used for mounting the gas cylinder.
In one embodiment of the invention, an air conditioner and an air conditioner installation part for installing the air conditioner are arranged in the energy storage cabinet, the air conditioner is started when the temperature in the energy storage cabinet reaches a third temperature threshold value or the temperature difference reaches a first temperature difference threshold value, and the air conditioner is shut down when the temperature drops to a fourth temperature threshold value or the temperature difference drops to a second temperature difference threshold value.
In this embodiment, the third temperature threshold, the fourth temperature threshold, the first temperature difference threshold, and the second temperature difference threshold may be set according to actual conditions.
In an embodiment of the present invention, when the energy storage cabinet is an isolation type, the energy storage cabinet further includes an isolation transformer, and the distribution line is connected to the ac circuit breaker after passing through the isolation transformer.
It is worth explaining that installation parts for fixedly installing all components, such as an air conditioner installation part, a gas cylinder installation part, a modular battery box installation part, a modular high-voltage box installation part and the like, are arranged in the energy storage cabinet, so that the flexibility of the energy storage cabinet in the field deployment at the user side is improved, and the energy storage cabinet can be adapted and deployed to a project field as far as possible under the scene that a container cannot be placed.
As shown in fig. 1-2, a dual prefabricated fire-fighting modular household energy storage device comprises a modular high-voltage box (including BMS, Battery Management System), a modular converter (PCS, Power Conversion System), a modular Battery box (including aerosol, BMU, Battery Management Unit), a modular air conditioner, an ac circuit breaker, a dc circuit breaker, a Power distribution device, a heptafluoropropane fire-fighting System (including gas cylinder, temperature and smoke sensor, nozzle, and hose line); a 400V low-voltage distribution line is led into an alternating current circuit breaker in the energy storage cabinet from a user side, is protected by the circuit breaker and then is connected to the AC side of a PCS (personal communications system) and the switching upstream of each distribution device, and the switching downstream of each distribution device is connected to each electric device, such as a lightning arrester connected with QF11, a 24V switching power supply connected with QF12, a fire protection system needing 24V power supply and a QF13 which are connected to an air conditioner; after the alternating current is converted into the direct current by the PCS, the direct current is connected to the upstream of the direct current breaker, the downstream of the direct current breaker is connected to the high-voltage box, specifically, the downstream of the direct current breaker can be connected to a total positive input terminal and a total negative input terminal of the high-voltage box, fuse protection is arranged in the high-voltage box, contactor control is carried out, the direct current passes through the contactor and then passes through the fuse after passing through the input terminals, and then the direct current is connected to a battery cluster which consists of 10 battery boxes, the battery boxes are connected in series, the direct current is connected to the high-voltage box through a total positive line and a total negative line after being connected in series, specifically, the total positive line of the battery cluster can be connected to a total positive output terminal of the high-voltage box, the total negative line of the battery.
In the embodiment, if the integrated circuit is a grid-connected type, the integrated circuit is directly connected to a PCS alternating current access side when alternating current is input; for an isolation type machine type, an isolation transformer is needed to be arranged, when alternating current is input, the isolation transformer is connected to the primary side of the transformer, and the secondary side of the isolation transformer is connected to the alternating current access side of the PCS.
When a fire occurs, if the battery box catches fire, aerosol in the corresponding battery box can be immediately sprayed to extinguish the fire in the box, if the fire continues, the temperature and smoke sensor in the cabinet detects high temperature and smoke, heptafluoropropane in the cabinet can be triggered to spray, the heptafluoropropane can be sprayed in 10 seconds to achieve the purpose of completely submerging the energy storage cabinet, and then the pressure gas can gradually release the internal pressure through the air duct of the external circulation;
the system greatly improves the field installation speed through modularized installation, the energy storage cabinet can be quickly installed at the corresponding position through the modularized battery box, the high-voltage box, the PCS and the air conditioner, when the module breaks down, the module and the energy storage cabinet can be released from fixation through screws fixed on a storage rack of the energy storage cabinet, and the module and the energy storage cabinet can be quickly dismantled and replaced by new equipment manually.
The energy storage cabinet has two installation modes of field installation and field installation, and the mode of field installation is required to be used depending on the working condition of a project field, if a channel is narrow and not beneficial to a forklift to pass through, the battery box, the high-voltage box and the PCS are disassembled after factory debugging is completed, after the energy storage cabinet is manually carried to the project field, modules such as the battery box and the like are sequentially loaded, and the energy storage cabinet and each module are fixed by using screws. Although troublesome, the design of the cabinet type energy storage improves the flexibility of the energy storage system in the field deployment at the user side, and the energy storage system can be adapted and deployed to the project field as much as possible under the scene that the container cannot be put in.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.
Finally, it is to be noted that: the above description is only a preferred embodiment of the present invention, and is only used to illustrate the technical solutions of the present invention, and not to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A modular energy storage system, comprising: modularization high-voltage box, modularization converter, modularization battery box, AC circuit breaker, direct current breaker and distribution device, wherein, the distribution lines process AC circuit breaker inserts respectively the AC side of modularization converter with the switch upper reaches of distribution device, the direct current side of modularization converter inserts the direct current breaker upper reaches, direct current breaker lower reaches inserts modularization high-voltage box, the access of modularization high-voltage box modularization battery box.
2. The modular energy storage system of claim 1, wherein the modular energy storage system comprises a plurality of modular battery boxes, the modular battery boxes are connected in series with each other, and after being connected in series, the modular battery boxes are respectively connected to the total positive output terminal and the total negative output terminal of the high-voltage box through a total positive line and a total negative line.
3. The modular energy storage system of claim 1, wherein a heavy fire protection system is disposed within the modular battery box, the heavy fire protection system comprising an aerosol canister, a first temperature sensor, and a first smoke sensor; the first temperature sensor is used for detecting the temperature in the modular battery box, the first smoke sensor is used for detecting smoke in the modular battery box, and the aerosol can is used for ejecting aerosol when the temperature in the modular battery box reaches a first temperature threshold value and/or the smoke reaches a first concentration threshold value.
4. A modular energy storage system according to any of claims 1-3, characterized in that the modular high-voltage tank is provided with interconnected fuses and contactors.
5. A modular energy storage cabinet, characterized in that the energy storage cabinet comprises a cabinet body and the modular energy storage system of any one of claims 1-4, wherein the modular energy storage system is mounted inside the cabinet body.
6. The modular energy storage cabinet of claim 5, wherein a dual fire protection system is disposed within the energy storage cabinet, the dual fire protection system comprising a gas cylinder, a second temperature sensor, and a second smoke sensor; the second temperature sensor is used for detecting the temperature in the energy storage cabinet, the second smoke sensor is used for detecting smoke in the energy storage cabinet, and the gas cylinder is used for injecting fire-fighting gas when the temperature in the energy storage cabinet reaches a second temperature threshold value and/or the smoke reaches a second concentration threshold value.
7. The modular energy storage cabinet of claim 6, wherein the gas cylinders are heptafluoropropane gas cylinders.
8. The modular energy storage cabinet of claim 6, wherein a gas cylinder mounting portion is provided in the energy storage cabinet for mounting the gas cylinder.
9. The modular energy storage cabinet of claim 5, wherein an air conditioner and an air conditioner installation portion for installing the air conditioner are arranged in the energy storage cabinet, when the temperature in the energy storage cabinet reaches a third temperature threshold or the temperature difference reaches a first temperature difference threshold, the air conditioner is started, and when the temperature drops to a fourth temperature threshold or the temperature difference drops to a second temperature difference threshold, the air conditioner is shut down.
10. The modular energy storage cabinet of any one of claims 5-9, wherein when the energy storage cabinet is an isolator type, the energy storage cabinet further comprises an isolation transformer, and the distribution line passes through the isolation transformer and then is connected to the ac circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011500953.6A CN112510731A (en) | 2020-12-18 | 2020-12-18 | Modular energy storage system and energy storage cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011500953.6A CN112510731A (en) | 2020-12-18 | 2020-12-18 | Modular energy storage system and energy storage cabinet |
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| CN112510731A true CN112510731A (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011500953.6A Pending CN112510731A (en) | 2020-12-18 | 2020-12-18 | Modular energy storage system and energy storage cabinet |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113782924A (en) * | 2021-09-14 | 2021-12-10 | 傲普(上海)新能源有限公司 | PACK isolation circuit for short-board battery cell of energy storage power station and power-on and power-off method |
| CN114512904A (en) * | 2022-02-14 | 2022-05-17 | 福建时代星云科技有限公司 | Energy storage cabinet |
| CN117013394A (en) * | 2023-07-04 | 2023-11-07 | 南通国轩新能源科技有限公司 | Comprehensive control cabinet for energy storage electrical system |
| CN117293470A (en) * | 2023-11-24 | 2023-12-26 | 福州智狐能源科技有限公司 | Energy storage power station convenient to transportation |
-
2020
- 2020-12-18 CN CN202011500953.6A patent/CN112510731A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113782924A (en) * | 2021-09-14 | 2021-12-10 | 傲普(上海)新能源有限公司 | PACK isolation circuit for short-board battery cell of energy storage power station and power-on and power-off method |
| CN114512904A (en) * | 2022-02-14 | 2022-05-17 | 福建时代星云科技有限公司 | Energy storage cabinet |
| CN114512904B (en) * | 2022-02-14 | 2023-02-10 | 福建时代星云科技有限公司 | Energy storage cabinet |
| WO2023151126A1 (en) * | 2022-02-14 | 2023-08-17 | 福建时代星云科技有限公司 | Energy storage cabinet |
| CN117013394A (en) * | 2023-07-04 | 2023-11-07 | 南通国轩新能源科技有限公司 | Comprehensive control cabinet for energy storage electrical system |
| CN117293470A (en) * | 2023-11-24 | 2023-12-26 | 福州智狐能源科技有限公司 | Energy storage power station convenient to transportation |
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