CN111092379A - Energy storage container system and energy storage power station - Google Patents
Energy storage container system and energy storage power station Download PDFInfo
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- CN111092379A CN111092379A CN201911413314.3A CN201911413314A CN111092379A CN 111092379 A CN111092379 A CN 111092379A CN 201911413314 A CN201911413314 A CN 201911413314A CN 111092379 A CN111092379 A CN 111092379A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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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
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides an energy storage container system and an energy storage power station. This energy storage container system includes the container and integrates the energy storage system in this container, and this container includes energy storage room, vary voltage room and contravariant room from one end to the other end in proper order, and this energy storage system includes: the energy storage battery pack and the confluence cabinet are arranged in the energy storage chamber, and the confluence cabinet is used for converging direct-current voltage output by the energy storage battery pack; the direct-current voltage converged by the convergence cabinet is connected to the direct-current side of the PCS inverter; the low-voltage side of the transformer is connected with the alternating current side of the PCS inverter, the high-voltage side of the transformer is connected with the incoming line cabinet, and the outgoing line cabinet is used for being connected with a power grid or a confluence container system. The energy storage container system provided by the invention has the advantages of small volume, occupied space saving, convenience in transportation, movement and hoisting, short cable length and cost saving.
Description
Technical Field
The invention relates to the technical field of energy storage systems, in particular to an energy storage container system and an energy storage power station.
Background
The energy storage system is a key part for solving the problems of large-scale access, wind abandonment and light abandonment of renewable energy sources; the system is a necessary component for the development of distributed energy, a smart grid and an energy internet; the method is also an important supporting part for solving the problems of peak clipping and valley filling of the conventional power and improving the power generation and transmission efficiency, safety and economy of the conventional energy. The existing energy storage container is divided into a battery energy storage container and a medium-pressure container: the battery container is internally provided with a battery frame and a secondary power distribution part or internally provided with a battery frame and a PCS inverter, and the medium-voltage container is internally provided with a PCS inverter, a transformer, a high-voltage switch cabinet, a power distribution cabinet or a transformer and a high-voltage switch cabinet. The switch cabinet of the medium-voltage container is connected to the power grid. Such an integration has the following disadvantages: (1) the energy storage system has certain maintenance and fire fighting space between two containers, occupies large field space and wastes land resources; (2) a cable trench needs to be dug between the battery energy storage container and the medium voltage container, the length of the cable is increased, and the overall cost is increased; (3) transportation vehicles are added in container transportation, so that transportation and hoisting costs are increased; (4) the air outlets and the air return inlets of the two containers interfere with each other, so that the heat dissipation performance of the whole system is influenced; (5) the battery energy storage and inversion boosting equipment are dispersed, and the integration performance is poor.
Disclosure of Invention
The invention provides an energy storage container system and an energy storage power station, which aim to solve the problems of large occupied field space, increased cost, poor heat dissipation performance and poor integration performance caused by the fact that the existing energy storage container is divided into a battery energy storage container and a medium-voltage container.
In order to solve the technical problem, the invention provides an energy storage container system, which comprises a container and an energy storage system integrated in the container, wherein the container sequentially comprises an energy storage chamber, a voltage transformation chamber and an inversion chamber from one end to the other end, and the energy storage system comprises:
the confluence cabinet is used for converging direct-current voltage output by the energy storage battery pack;
the direct-current voltage converged by the combiner cabinet is connected to the direct-current side of the PCS inverter;
the low-voltage side of the transformer is connected with the alternating current side of the PCS inverter, the high-voltage side of the transformer is connected with the incoming line cabinet, and the outgoing line cabinet is used for being connected with a power grid or a confluence container system.
As a further improvement of the invention, 2 confluence cabinets are arranged in the energy storage chamber, 2 PCS inverters are arranged in the inversion chamber, the energy storage battery pack comprises 2 stacks of battery stacks, and each stack of battery stacks comprises 3 battery clusters; wherein a stack of battery stacks, a collection cabinet, and a PCS inverter are located on the same side of the container.
As a further improvement of the invention, a primary and secondary door is arranged at one end of the energy storage chamber far away from the pressure changing chamber, and an access control system is arranged on a secondary door of the primary and secondary door.
As a further improvement of the present invention, a first double-opening door is arranged at one end of the inversion chamber far away from the voltage transformation chamber, and a shutter for air intake is arranged on the first double-opening door; and the two sides of the inversion chamber are respectively provided with a maintenance door and a first air channel for air outlet, and the first air channel is connected with the top of the PCS inverter.
As a further improvement of the invention, a second double-opening door is arranged on one side of the variable pressure chamber, and a safe escape maintenance door is arranged on one door of the second double-opening door; a shutter for air inlet is arranged on the second double-opening door, and the protection grade of the shutter is IP 54; and a second air duct for air outlet is arranged on the other side of the variable pressure chamber, and a centrifugal fan is arranged in the second air duct.
As a further improvement of the invention, an L-shaped stainless steel protective net is arranged on the side of the transformer close to the second double-opening door and the incoming line cabinet, an electromagnetic door lock is arranged on the stainless steel protective net, and the electromagnetic door lock is opened when the transformer is powered off.
As a further improvement of the present invention, the energy storage container system further comprises a heat dissipation system, the heat dissipation system comprising:
the air conditioner and the air supply device are arranged on the same side of the energy storage chamber; cold air output by each air conditioner is conveyed to the corresponding cell stack through the corresponding air supply device;
the first double-opening door and the first air duct are arranged in the inversion chamber, a shutter for air inlet is arranged on the first double-opening door, the first air duct is connected with the top of the PCS inverter, and a centrifugal fan is arranged at the top of the PCS inverter;
the air conditioner comprises a second double-opening door, a second air channel and a fan, wherein the second double-opening door and the second air channel are arranged in a variable pressure chamber, the fan is arranged at the bottom of the transformer, a shutter for air inlet is arranged on the second double-opening door, and a centrifugal fan for dissipating heat is arranged in the second air channel.
As a further development of the invention, the energy storage container system further comprises a fire protection system, the fire protection system comprising:
the cabinet type heptafluoropropane fire extinguishing device, the smoke detector, the temperature-sensitive detector and the audible and visual alarm are arranged in the energy storage chamber; the smoke detector and the dry powder fire extinguisher are arranged in the inversion chamber; and the smoke detector and the dry powder fire extinguisher are arranged in the pressure changing chamber.
As a further improvement of the invention, the container is a 40-foot HC standard container; and/or
A battery frame used for placing the battery stack is arranged in the energy storage chamber, the bottom of the battery frame is fixed on No. 10 channel steel, the top of the battery frame is fixed through an L-shaped corner piece, and a fixed cross beam is arranged between the battery frames positioned on two sides of the container; and/or
A first patterned floor is laid on a channel between the 2 stacks of cell stacks, a power line and a secondary line run below the first patterned floor, an insulating rubber pad resistant to 10kV and 5mm in thickness is laid on the patterned floor, a second patterned floor is laid on a channel between the 2 PCS inverters, the power line and the secondary line run below the second patterned floor, and an insulating rubber pad resistant to 10kV and 5mm in thickness is laid on the patterned floor; and/or
A manhole is arranged between the 2 PCS inverters, and workers enter the cable trench through the manhole; and/or
The DC rated voltage of each battery cluster is 729.6V; and/or
The power of each PCS inverter is 500 kW; and/or
The capacity of the transformer is 1250 kVA; and/or
The incoming cabinet is a 10kV incoming cabinet, and the outgoing cabinet is a 10kV outgoing cabinet.
In order to further solve the technical problem, the invention further provides an energy storage power station comprising the energy storage container system.
Compared with the prior art, the energy storage container system integrates energy storage, inversion and transformation into a container, has small volume, can save occupied space, is convenient for transportation, movement and hoisting, and saves transportation and hoisting cost; in addition, a cable trench is not needed, the length of the cable is short, and the cost of materials and the like is saved.
Drawings
Fig. 1 is a schematic plan view of an energy storage container system of the present invention;
FIG. 2 is a perspective view of the energy storage container system of the present invention;
FIG. 3 is a right side view of FIG. 2;
FIG. 4 is a rear view of FIG. 2;
FIG. 5 is an enlarged view of a part of the structure of a stainless steel protective net in the energy storage container system of the invention;
FIG. 6 is a schematic view of the structure of the air supply device in the energy storage container system of the present invention;
FIG. 7 is a bottom view of the air supply assembly of the energy storage container system of the present invention;
fig. 8 is a schematic plan view of a fire protection system in the energy storage container system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to make the description of the present disclosure more complete and complete, the following description is given for illustrative purposes with respect to the embodiments and examples of the present invention; it is not intended to be the only form in which the embodiments of the invention may be practiced or utilized. The embodiments are intended to cover the features of the various embodiments as well as the method steps and sequences for constructing and operating the embodiments. However, other embodiments may be utilized to achieve the same or equivalent functions and step sequences.
In order to solve the problems of large occupied field space, increased cost, heat dissipation performance and poor integration performance caused by the fact that the existing energy storage container is divided into a battery energy storage container and a medium-voltage container, the invention provides an energy storage container system which comprises a container and an energy storage system integrated in the container, please refer to fig. 1, wherein the container sequentially comprises an energy storage chamber 1, a voltage transformation chamber 2 and an inversion chamber 3 from one end to the other end, and each chamber is internally provided with a firewall which has a heat insulation function. This energy storage system includes: the energy storage battery pack and the collecting cabinet 11 are arranged in the energy storage chamber 1, the PCS inverter 31 is arranged in the inverter chamber 3, the transformer 21 is arranged in the transformation chamber 2, the incoming cabinet 22 is arranged, and the outgoing cabinet 23 is connected with the incoming cabinet 22. The direct-current voltage output by the energy storage battery pack is converged by the combiner cabinet 11 and then is connected to the direct-current side of the PCS inverter 31, the low-voltage side of the transformer 21 is connected with the alternating-current side of the PCS inverter 31, the high-voltage side of the transformer 21 is connected with the incoming line cabinet 22, and the outgoing line cabinet 23 is used for connecting a power grid or a combiner container system.
The energy storage, inversion and transformation are integrated into one container, so that the container is small in size, occupied space can be saved, transportation, movement and hoisting are facilitated, and transportation and hoisting cost is saved; in addition, a cable trench is not needed, the length of the cable is short, and the cost of materials and the like is saved.
Optionally, 2 confluence cabinets 11 are arranged in the energy storage chamber 1, 2 PCS inverters 31 are arranged in the inverter chamber 3, the energy storage battery pack comprises 2 stacks of battery stacks 12, and each stack of battery stacks 12 comprises 3 battery clusters 121; one of the cell stacks 12, one of the junction boxes 11, and one of the PCS inverters 31 are located on the same side of the container.
Referring to fig. 2, optionally, a battery rack 13 for accommodating a battery stack 12 is arranged in the energy storage chamber 1, the bottom of the battery rack 13 is fixed on a # 10 channel steel, the top of the battery rack 13 is fixed by an L-shaped corner piece, and a fixing beam is arranged between the battery racks 13 at two sides of the container. A maintenance and fire-fighting channel (corresponding to a channel between two battery stacks 12 in the figure 1) is reserved in the middle of the energy storage chamber 1, a patterned floor is paved on the channel, a power line and a secondary line run below the patterned floor, and an insulating rubber pad which is resistant to 10kV and 5mm in thickness is paved on the patterned floor.
Continuing to refer to fig. 1, the end of the energy storage chamber 1 far from the voltage transformation chamber 2 is opened with a primary and secondary door, wherein the primary door 14 is used for opening when a larger device such as the battery rack 13, the cabinet body (such as the collecting cabinet 11), and the battery cluster is installed, the secondary door 15 is used for opening when overhauling or observing, the secondary door is opened conveniently, and therefore the secondary door is also set as an escape door. An access control system 151 (shown in fig. 3) is installed on the sub-door 15, so that the access of people is restricted and managed conveniently.
As shown in fig. 1, a first double-open door 32 is disposed at an end of the inverter chamber 3 away from the transformer chamber 2, so that a large-volume device such as the PCS inverter 31 can enter the first double-open door conveniently, and the bottom of the PCS inverter 31 is fixed to the 10# channel steel. The first double-opening door 32 is provided with a shutter 321 (shown in fig. 2) for air intake, which can provide fresh air for heat dissipation of the equipment in the inverter chamber 3. A maintenance door 33 and a first air duct 34 (as shown in fig. 2 and 4) are respectively arranged on two sides of the inversion chamber 3, the first air duct 34 is connected with the top of the PCS inverter 31, the top of the PCS inverter 31 is provided with a centrifugal fan, and heat in the inversion chamber 3 is dissipated to the outside from the first air duct 34 through the centrifugal fan. The maintenance door 33 makes it easier to maintain and overhaul the equipment in the inverter room 3. A manhole is arranged between the two PCS inverters 31, and workers can enter the cable trench through the manhole. A patterned floor is laid on a channel between the two PCS inverters 31, a power line and a secondary line run below the patterned floor, and an insulating rubber pad which is resistant to 10kV and 5mm in thickness is laid on the patterned floor.
Continuing to refer to fig. 1, a second double-opening door 24 is arranged at one side of the transformation room 2, and a safety escape maintenance door 241 is arranged on one door of the second double-opening door 24; the second double-opening door 24 is provided with a shutter 242 (shown in fig. 2) for air intake, and the shutter 242 has a protection grade IP 54; two second air ducts 25 (shown in fig. 2 and 4) for exhausting air are arranged on the other side of the variable pressure chamber 2, and a centrifugal fan (shown in fig. 2) is arranged in each of the two second air ducts 25. The transformer 21 is provided with an L-shaped stainless steel protective net 26 (as shown in fig. 1) on the side close to the second double-opening door 24 and the inlet cabinet 22, and an electromagnetic door lock 27 (as shown in fig. 5) is provided on the stainless steel protective net 26, and the electromagnetic door lock 27 is opened only when the transformer 21 is powered off.
Optionally, the container is a 40 feet HC standard container; the container integral steel structure adopts a cotten A high weather-resistant steel plate and a flat top structure, the effective thickness of the color steel plate at the top of the container is not less than 2.0mm, the effective thickness of the corrugated plate at the outer wall is not less than 1.6mm, and the effective thickness of the color steel plate at the inner wall is not less than 1.6 mm. The shell of the container adopts two layers of steel plates, and the middle filling material is A-level fireproof flame-retardant rock wool with waterproof function. The top, side walls and bottom side beams of the container are welded by flat channels with reinforced thickness of 80 x 160mm and thickness of 6 mm.
Optionally, the capacity of the energy storage battery pack in the energy storage chamber 1 is 1.4MWh, and after the energy storage battery pack is divided into 6 battery clusters, the dc rated voltage of each battery cluster is 729.6V. The power of each PCS inverter 31 is 500kW, and the capacity of the transformer 21 is 1250 kVA; the incoming cabinet 22 is a 10kV incoming cabinet, and the outgoing cabinet 23 is a 10kV outgoing cabinet. The direct current voltage output by each battery pile is converged by the convergence cabinet 11 and then is connected to the direct current side of the 500kW PCS inverter 31, the 400V alternating current voltage is output by the alternating current side of the 500kW PCS inverter 31, then the voltage is boosted by the transformer 21 of 1250kVA, the voltage is boosted and then sequentially passes through the 10kV incoming line cabinet and the 10kV outgoing line cabinet, finally the direct grid connection or the connection is performed to the 10kV switch cabinet in the convergence container system, and then the direct current voltage is converged to the 10kV isolation cabinet for output by the 10kV incoming line cabinet in the convergence container system.
Optionally, as shown in fig. 1, the energy storage container system further includes a heat dissipation system, the heat dissipation system includes two air conditioners 16 disposed in the energy storage chamber 1, the two air conditioners 16 are respectively located at two sides of the energy storage chamber 1, and a top of each air conditioner 16 is provided with a high-air-volume centrifugal fan for improving air supply capacity of the air conditioner. The cold air of 16 outputs of every air conditioner is sent to the battery cluster of homonymy through corresponding air supply arrangement 17 (as shown in fig. 2), and the 200mm interval that cold air reserved between battery rack 13 and the container wall gets into the battery module that each battery cluster contains, has the little fan of adjustable rotational speed on every battery module to carry out convulsions to control the temperature of battery module, guarantee that the difference in temperature of entire system's battery module is not more than 5 ℃, improve energy storage system's fortune ability. Referring to fig. 6, the air supply device 17 includes a flexible connection 171, a static pressure box 172, and an air supply duct 173, one end of the flexible connection 171 is connected to the static pressure box 172, the other end is connected to the top of the air conditioner 16, the static pressure box 172 is connected to the air supply duct 173, a plurality of air outlets 1731 are provided in the air supply duct 173, and each air outlet is provided with an adjusting plate 1732 (as shown in fig. 7) for adjusting the size of the air outlet. Wherein, the air conditioners with different heights can be matched through the soft connection 171; the static pressure box 172 can be used for reducing noise, obtaining uniform static pressure air outlet and reducing dynamic pressure loss; and the static pressure box also has the function of a universal joint, and the static pressure box is well applied to a ventilation system, so that the comprehensive performance of the ventilation system can be improved.
Optionally, the heat dissipation system further includes a first air duct 34 disposed in the inverter chamber 3, a louver 321 disposed on the first double-open door 32, and a centrifugal fan disposed at the top of the PCS inverter 31, where the first air duct 34 is connected to the top of the PCS inverter 31, specifically, the louver 321 on the first double-open door 32 supplies air to the equipment in the inverter chamber 3, and the centrifugal fan dissipates heat from the first air duct 34 to the outside.
Optionally, the heat dissipation system further includes a second air duct 25 disposed in the pressure changing chamber 2, a fan disposed at the bottom of the transformer 21, and a louver 242 disposed on the second double-opening door 24, specifically, the louver 242 on the second double-opening door 24 supplies air to the device in the pressure changing chamber 2, and the centrifugal fan in the second air duct 25 dissipates heat.
Through the mode, the heat dissipation modes of the chambers are not interfered with each other, the system heat dissipation effect is better, and the operation efficiency of the whole energy storage system can be improved.
Referring to fig. 8, the energy storage container system further includes a fire fighting system, which includes 4 smoke detectors 41, 2 temperature detectors 42, 2 audible and visual alarms 44, 2 fire alarm bells 45, a cabinet type heptafluoropropane fire extinguishing device 46, a fire fighting cabinet 47, a central control cabinet 48, a module 49, a gas discharge indicator lamp 50, a manual/automatic switching box 51, an emergency start/stop box 52, and a dry powder fire extinguisher (not shown). One of the audible and visual alarms 44 and one of the fire alarm bells 45 are arranged above the fire-fighting cabinet 47, and the other audible and visual alarm 44 and the other fire alarm bell 45 constitute a fire-fighting main unit together with a module 49, an air-release indicator lamp 50, a manual/automatic switching box 51 and an emergency start/stop box 52, and the fire-fighting main unit is arranged at one end of the energy storage chamber 1 where the primary and secondary doors are arranged. Wherein 2 smoke detector 41 and 2 temperature-sensitive detectors 42 all locate in energy storage room 1, and 2 remaining smoke detector 41 locate respectively in vary voltage room 2 and contravariant room 3, connect through threading pipe 43 between each detector, fire control cabinet 47, well accuse cabinet 48 and the fire control host computer. The cabinet type heptafluoropropane fire extinguishing apparatus 46 is arranged in the energy storage chamber 1 and used for protecting the energy storage chamber 1, and the cabinet type heptafluoropropane fire extinguishing apparatus 46 is provided with a pipe network 461 and a spray head 462. Dry powder extinguishers (not shown) are disposed in both the inversion chamber 3 and the pressure changing chamber 2.
In order to further solve the technical problem, the invention also provides an energy storage power station comprising the energy storage container system, and the energy storage power station occupies small space due to the use of the energy storage container system; the energy storage container system is convenient to transport, move and hoist, so that the construction cost of the energy storage power station is correspondingly reduced; in addition, because a cable trench is not needed, the length of the cable is short, and the cost of materials and the like is correspondingly reduced; in addition, the energy storage container system has good heat dissipation effect and high transportation efficiency, so that the overall transportation efficiency of the energy storage power station is correspondingly improved.
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 and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An energy storage container system, characterized in that, includes container, and the energy storage system who integrates in the container, the container includes energy storage room, vary voltage room and contravariant room from one end to the other end in proper order, energy storage system includes:
the confluence cabinet is used for converging direct-current voltage output by the energy storage battery pack;
the direct-current voltage converged by the combiner cabinet is connected to the direct-current side of the PCS inverter;
the low-voltage side of the transformer is connected with the alternating current side of the PCS inverter, the high-voltage side of the transformer is connected with the incoming line cabinet, and the outgoing line cabinet is used for being connected with a power grid or a confluence container system.
2. The energy storage container system of claim 1, wherein there are 2 combiner cabinets in the energy storage chamber, there are 2 PCS inverters in the inverter chamber, the energy storage battery pack comprises 2 stacks of cells, each stack comprises 3 cell clusters; wherein a stack of battery stacks, a collection cabinet, and a PCS inverter are located on the same side of the container.
3. The energy storage container system of claim 2, wherein a sub-door is provided at an end of the energy storage chamber remote from the pressure changing chamber, and an access control system is provided on a sub-door of the sub-door.
4. The energy storage container system of claim 2, wherein a first double-opening door is arranged at one end of the inversion chamber far away from the voltage transformation chamber, and a shutter for air intake is arranged on the first double-opening door; and the two sides of the inversion chamber are respectively provided with a maintenance door and a first air channel for air outlet, and the first air channel is connected with the top of the PCS inverter.
5. The energy storage container system of claim 2, wherein a second double-opening door is provided at one side of the variable pressure chamber, and a safety escape maintenance door is provided at one door of the second double-opening door; a shutter for air inlet is arranged on the second double-opening door, and the protection grade of the shutter is IP 54; and a second air duct for air outlet is arranged on the other side of the variable pressure chamber, and a centrifugal fan is arranged in the second air duct.
6. The energy storage container system of claim 5, wherein an L-shaped stainless steel protective mesh is arranged on the side of the transformer close to the second double-opening door and the incoming cabinet, and an electromagnetic door lock is arranged on the stainless steel protective mesh and is opened when the transformer is powered off.
7. The energy storage container system of claim 2, further comprising a heat dissipation system, the heat dissipation system comprising:
the air conditioner and the air supply device are arranged on the same side of the energy storage chamber; cold air output by each air conditioner is conveyed to the corresponding cell stack through the corresponding air supply device;
the first double-opening door and the first air duct are arranged in the inversion chamber, a shutter for air inlet is arranged on the first double-opening door, the first air duct is connected with the top of the PCS inverter, and a centrifugal fan is arranged at the top of the PCS inverter;
the air conditioner comprises a second double-opening door, a second air channel and a fan, wherein the second double-opening door and the second air channel are arranged in a variable pressure chamber, the fan is arranged at the bottom of the transformer, a shutter for air inlet is arranged on the second double-opening door, and a centrifugal fan for dissipating heat is arranged in the second air channel.
8. The energy storage container system of claim 2, further comprising a fire protection system, the fire protection system comprising:
the cabinet type heptafluoropropane fire extinguishing device, the smoke detector, the temperature-sensitive detector and the audible and visual alarm are arranged in the energy storage chamber; the smoke detector and the dry powder fire extinguisher are arranged in the inversion chamber; and the smoke detector and the dry powder fire extinguisher are arranged in the pressure changing chamber.
9. An energy storage container system according to any of claims 2-8, wherein the container is a 40 feet HC standard container; and/or
A battery frame used for placing the battery stack is arranged in the energy storage chamber, the bottom of the battery frame is fixed on No. 10 channel steel, the top of the battery frame is fixed through an L-shaped corner piece, and a fixed cross beam is arranged between the battery frames positioned on two sides of the container; and/or
A first patterned floor is laid on a channel between the 2 stacks of cell stacks, a power line and a secondary line run below the first patterned floor, an insulating rubber pad resistant to 10kV and 5mm in thickness is laid on the patterned floor, a second patterned floor is laid on a channel between the 2 PCS inverters, the power line and the secondary line run below the second patterned floor, and an insulating rubber pad resistant to 10kV and 5mm in thickness is laid on the patterned floor; and/or
A manhole is arranged between the 2 PCS inverters, and workers enter the cable trench through the manhole; and/or
The DC rated voltage of each battery cluster is 729.6V; and/or
The power of each PCS inverter is 500 kW; and/or
The capacity of the transformer is 1250 kVA; and/or
The incoming cabinet is a 10kV incoming cabinet, and the outgoing cabinet is a 10kV outgoing cabinet.
10. An energy storage plant, characterized in that it comprises an energy storage container system according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911413314.3A CN111092379A (en) | 2019-12-31 | 2019-12-31 | Energy storage container system and energy storage power station |
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| CN201911413314.3A CN111092379A (en) | 2019-12-31 | 2019-12-31 | Energy storage container system and energy storage power station |
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| CN112151719A (en) * | 2020-09-15 | 2020-12-29 | 广州智光储能科技有限公司 | Container type power battery echelon utilization device |
| CN112165111A (en) * | 2020-08-17 | 2021-01-01 | 安徽绿沃循环能源科技有限公司 | Remove and mend trolley-bus |
| CN112467769A (en) * | 2020-11-23 | 2021-03-09 | 阳光电源股份有限公司 | Modularized pre-installed energy storage system |
| CN113241492A (en) * | 2021-04-22 | 2021-08-10 | 北京智慧互联能源有限公司 | Container type energy storage battery station with flame-retardant and fire-extinguishing functions |
| CN113332641A (en) * | 2021-06-28 | 2021-09-03 | 西安热工研究院有限公司 | Centralized inverter container room based on automatic fire extinguishing |
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