CN206807024U - A kind of more cluster parallel connection energy-storage systems of container for having multi-stage protection concurrently - Google Patents
A kind of more cluster parallel connection energy-storage systems of container for having multi-stage protection concurrently Download PDFInfo
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- CN206807024U CN206807024U CN201720519955.7U CN201720519955U CN206807024U CN 206807024 U CN206807024 U CN 206807024U CN 201720519955 U CN201720519955 U CN 201720519955U CN 206807024 U CN206807024 U CN 206807024U
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Abstract
The utility model discloses a kind of more cluster parallel connection energy-storage systems of container for having multi-stage protection concurrently; including multiple single cluster energy-storage systems and three class control device; the single cluster energy-storage system is by multiple battery cases; safe power supply module; two level single cluster controller forms; it is sequentially connected in series between the battery case, while using Network Communication in CAN1 buses；The battery case of safe power supply module positive-negative input end connection series connection, the high pressure both positive and negative polarity output of the positive-negative output end of the safe power supply module of each cluster access container energy-storage system in parallel, the two level single cluster controller carries out observing and controlling to safe power supply module, accessed between CAN1 buses Intranet and battery case and communicated by CAN1 interfaces simultaneously, access CAN2 buses Intranet by network interface in CAN2 communicates with three class control device；The three class control device is communicated by CAN1 bus outer nets with external management system, and inverter is accessed by 485 bus outer nets.
Description
Technical field
Energy-storage system is the utility model is related to, more particularly to a kind of more cluster parallel connection energy storage systems of container for having multi-stage protection concurrently
System.
Background technology
In recent years, as the propulsion of green energy resource strategy, new round power system reform supporting policy are implemented, energy storage skill
The application field and application type of art are progressively apparent, and extensive energy storage technology obtains the accreditation in market, and application value is increasingly clear and definite.
The emphasis of industry and commerce field energy-storage system, difficult point are Large Copacity application and Large scale construction, it is desirable to which energy-storage system possesses high safety
Property, high-energy-density, the high circulation life-span, it is more using container as systemic vectors at present, easily adapt to changeable application environment.
Single cluster high-tension battery group is composed in series by more lithium battery modules, more cluster battery packs in parallel realize high-energy energy storage system
System.Lithium ion battery cluster is adapted to used in parallel, it is contemplated that each cluster state-of-charge is not quite identical, circulation will be produced when in parallel, sternly
All battery pack cluster charge or discharge overcurrent protections can be directly resulted in during weight, so needing a kind of safe and reliable, automation
The more cluster battery pack parallel connection protection devices of container energy-storage system.
Utility model content
The defects of to overcome prior art, it is in parallel that the utility model provides a kind of more clusters of container for having multi-stage protection concurrently
Energy-storage system, the existing loop current between battery pack is thoroughly eliminated by the way of electricity on ladder is run, while in parallel connection
During electricity operation, there is provided module level-single cluster level-more clusters level three-level protective, it is ensured that the safety in utilization of more cluster battery packs, operation can
By property.
The utility model discloses a kind of more cluster parallel connection energy-storage systems of container for having multi-stage protection concurrently, including multiple single clusters
Energy-storage system and three class control device, in parallel between multiple single cluster energy-storage systems and communicated with a three class control device, the single cluster
Energy-storage system is made up of multiple battery cases, safe power supply module, two level single cluster controller, wherein：
The battery case is made up of more 2 and 16 string single battery cores and local monitor unit, is sequentially connected in series between battery case, together
When local monitor unit between using Network Communication in CAN1 buses；
The battery case of safe power supply module positive-negative input end connection series connection, the positive-negative output end of the safe power supply module of each cluster
The high pressure both positive and negative polarity output of parallel connection access container energy-storage system, the two level single cluster controller are surveyed to safe power supply module
Control, while accessed between CAN1 buses Intranet and battery case and communicated by CAN1 interfaces, CAN2 is accessed by network interface in CAN2
Bus Intranet communicates with three class control device；
The three class control device is communicated by CAN1 bus outer nets with external management system, is accessed by 485 bus outer nets
Inverter.
Preferably, the local monitor unit includes voltage acquisition module, temperature collect module, local monitor monolithic
Machine, active equalization module, passive balance module, photoelectric alarm module and CAN1 communication modules, wherein voltage acquisition module is to each
The magnitude of voltage of individual single battery core is acquired, and is sent to local monitor single-chip microcomputer, voltage of the local monitor single-chip microcomputer to collection
Data check is carried out, then calculates the total voltage of single battery core, average voltage, ceiling voltage, minimum voltage and odd even voltage,
And CAN1 buses Intranet is accessed by CAN1 communication modules and is sent into two level single cluster controller, the temperature collect module passes through temperature
Degree sensor is acquired to the temperature of each single battery core, and is sent to local monitor single-chip microcomputer, the local monitor monolithic
Machine is calibrated to the temperature data of collection, then calculates the total moisture content of each single battery core, mean temperature, maximum temperature,
Minimum temperature and PCBA temperature, and CAN1 buses Intranet is accessed by CAN1 communication modules and is sent into two level single cluster controller, together
When local monitor single-chip microcomputer overvoltage is carried out to the magnitude of voltage and temperature value of calculating and excess temperature judges, pass through photoelectricity to failure be present
Alarm module is alerted, while local monitor single-chip microcomputer receives the well-balanced adjustment control letter that two level single cluster controller sends over
Number, boosted by active equalization module or passive balance module or decompression is handled.
Preferably, the safe power supply module has positive-negative input end, positive-negative output end, preliminary filling relay, main relay
Device and breaker of plastic casing, wherein breaker of plastic casing are connected on positive-negative output end, are two-way high pressure breaker of plastic casing, control output
Break-make, the preliminary filling relay is in parallel with main relay, is then connected on again between electrode input end and breaker of plastic casing.
Preferably, the two level single cluster controller includes single cluster control single chip computer, CAN1 communication modules, CAN2 communication moulds
Block, insulation module, AC/DC power supply modules, relay driving module and RTCC stand-by power supplies, wherein single cluster control single chip computer pass through
CAN1 communication modules access CAN1 buses Intranet receives the voltage that battery case sends over and temperature data and these data is entered
Row processing statistics obtains the total current of the cluster, total voltage, total insulaion resistance, total data such as charged, and passes through CAN2 communication modules
Access CAN2 bus Intranets send data to three class control device, while single cluster control single chip computer is driven by relay driving module
Main relay and preliminary filling relay in dynamic safe power supply module, the insulation module connect the positive negative output of high pressure and single cluster control
Single-chip microcomputer, the power line insulation against ground resistance value for connecting the positive negative output of high pressure is acquired, and is judged and whether reach million
And above standard, so that it is determined that its insulating properties, the AC/DC power supply modules are powered to whole two level single cluster controller,
And powered after a loss of power by RTCC stand-by power supplies.
Preferably, the three class control device includes three class control single-chip microcomputer, and CAN1 communication modules, CAN2 communication modules,
RS485 communication modules, AC/DC power supply modules and RTCC stand-by power supplies, three class control single-chip microcomputer are accessed by CAN2 communication modules
CAN2 buses Intranet is communicated with two level single cluster controller, and CAN1 buses outer net and external management system are accessed by CAN1 communication modules
System communication, 485 bus outer nets are accessed by RS485 communication modules and communicated with inverter, the AC/DC power supply modules are to whole three
Level controller is powered, and is powered after a loss of power by RTCC stand-by power supplies.
Compared with prior art, a kind of more cluster parallel connection energy-storage systems of container for having multi-stage protection concurrently of the present utility model,
With following usefulness：
The voltage of battery core, temperature in battery case are acquired using local monitor module, while to the event such as overvoltage, excess temperature
Barrier is judged, is warned by photoelectric alarm mode, is ensured the availability of monocell case, is facilitated technical staff's fast positioning failure
Battery, and ensure the battery case fault-free accessed in cluster, realize first class of protection；
Communication separates with the power supply energized in two level single cluster controller, after the main relay for disconnecting single cluster battery pack, communication
Power supply is still suffered from, and after disconnecting breaker of plastic casing, communication is not powered with energy supply；It possesses local defencive function, while three
After level controller control failure, local protection is performed, is initially switched off charging by local protection, discharge relay, treats that electric current reduces
To safe range, then the breaker of plastic casing of this cluster is disconnected, ensure the safe for operation of remaining batteries in parallel connection cluster system, realize two level event
Hinder insulation blocking.
Top controller judges whether single cluster operation alerts, and provides and singly cut and forbid charging and discharging two class protection,
Charging, the electric discharge relay of the cluster are will be switched off, treats that electric current is decreased to safe range, breaker of plastic casing is disconnected, by what is broken down
Single cluster battery pack isolates system, and does not allow the cluster voluntarily access system work, realizes three-level protective；
For the upper electricity of more cluster parallel forms, each single cluster state-of-charge is collected by three class control device, gradually preferential closure is worked as
Preceding trouble-free highest piezoelectric battery cluster to be closed, reduce number of comparisons, on ladder electricity operation exist between can eliminating battery pack
The problem of loop current；
Protection for energy-storage system uses multiple protection measure, and mould is provided which when electric level, operation, Fault Isolation in parallel connection
3 grades of block level-single cluster level-more clusters level protections, ensure the safety in utilization, reliable of the more cluster battery packs of container energy-storage system
Property.
Communicated between battery case and two level single cluster controller using CAN1 bus Intranets, two level single cluster controller with
Communicated between three class control device using the bus Intranets of CAN 2, two-way separate communications signal is not interfere with each other, while reduces big number
According to amount to communications burden caused by single bus；Three class control device is communicated with outside using CAN1 bus outer nets, with Intranet
Carry out data isolation, it is ensured that reliable communications when built-in system is run.
Two level single cluster controller and three class control device are using individually powering, after some single cluster enters guard mode not
Meeting intermittently communicating, further provided with reserve battery and continues to power after falling a little.
Brief description of the drawings
Fig. 1 is the circuit module of the more cluster parallel connection energy-storage systems of the container for having multi-stage protection concurrently disclosed in the utility model
Figure；
Fig. 2 is the circuit module figure of the local monitor unit disclosed in the utility model.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical scheme of the utility model embodiment is carried out clear, complete
Description.
As shown in Figure 1 and 2, a kind of more cluster parallel connection energy storage systems of container for having multi-stage protection concurrently disclosed in the utility model
System, including multiple single cluster energy-storage systems and three class control device, it is in parallel between multiple single cluster energy-storage systems and with a three class control
Device is communicated, and the single cluster energy-storage system is made up of multiple battery cases, safe power supply module, two level single cluster controller, wherein：
The battery case is made up of more 2 and 16 string single battery cores and local monitor unit, is sequentially connected in series between battery case, together
When local monitor unit between using Network Communication in CAN1 buses；
The battery case of safe power supply module positive-negative input end connection series connection, the positive-negative output end of the safe power supply module of each cluster
The high pressure both positive and negative polarity output of parallel connection access container energy-storage system, the two level single cluster controller are surveyed to safe power supply module
Control, while accessed between CAN1 buses Intranet and battery case and communicated by CAN1 interfaces, CAN2 is accessed by network interface in CAN2
Bus Intranet communicates with three class control device；
The three class control device is communicated by CAN1 bus outer nets with external management system, is accessed by 485 bus outer nets
Inverter.
The local monitor unit includes voltage acquisition module, temperature collect module, local monitor single-chip microcomputer, active equalization
Module, passive balance module, photoelectric alarm module and CAN1 communication modules, wherein voltage acquisition module is to each single battery core
Magnitude of voltage is acquired, and is sent to local monitor single-chip microcomputer, local monitor single-chip microcomputer and carried out data check to the voltage of collection,
Then the total voltage of single battery core, average voltage, ceiling voltage, minimum voltage and odd even voltage are calculated, and is led to by CAN1
Believe that module access CAN1 buses Intranet is sent into two level single cluster controller, the temperature collect module is by temperature sensor to each
The temperature of individual single battery core is acquired, and is sent to local monitor single-chip microcomputer, temperature of the local monitor single-chip microcomputer to collection
Degrees of data is calibrated, and then calculates the total moisture content of each single battery core, mean temperature, maximum temperature, minimum temperature and
PCBA temperature, and CAN1 buses Intranet is accessed by CAN1 communication modules and is sent into two level single cluster controller, while local monitor
Single-chip microcomputer carries out overvoltage to the magnitude of voltage and temperature value of calculating and excess temperature judges, to entering by photoelectric alarm module for failure be present
Row alarm, while local monitor single-chip microcomputer receives the well-balanced adjustment control signal that two level single cluster controller sends over, and passes through master
Dynamic balance module or passive balance module are boosted or decompression processing.
The safe power supply module has positive-negative input end, and positive-negative output end, preliminary filling relay, main relay and plastic housing are broken
Road device, wherein breaker of plastic casing are connected on positive-negative output end, are two-way high pressure breaker of plastic casing, control the break-make of output, described
Preliminary filling relay is in parallel with main relay, is then connected on again between electrode input end and breaker of plastic casing.
The two level single cluster controller includes single cluster control single chip computer, CAN1 communication modules, CAN2 communication modules, insulator die
Block, AC/DC power supply modules, relay driving module and RTCC stand-by power supplies, wherein single cluster control single chip computer are communicated by CAN1
Module access CAN1 buses Intranet receives voltage and temperature data that battery case sends over, then carries out processing statistics and is somebody's turn to do
The total current of cluster, total voltage, total insulaion resistance, total data such as charged, and pass through CAN2 communication modules and access CAN2 bus Intranets
Three class control device is sent data to, while single cluster control single chip computer is driven in safe power supply module by relay driving module
Main relay and preliminary filling relay, the positive negative output of insulation module connection high pressure and single cluster control single chip computer are high to connection
The power line insulation against ground resistance value of positive pressure negative output is acquired, and is judged and whether reach million and above standard, so as to
Its insulating properties is determined, the AC/DC power supply modules are powered to whole two level single cluster controller, and are passed through after a loss of power
RTCC stand-by power supplies are powered.
The three class control device includes three class control single-chip microcomputer, CAN1 communication modules, CAN2 communication modules, RS485 communications
Module, AC/DC power supply modules and RTCC stand-by power supplies, three class control single-chip microcomputer are accessed in CAN2 buses by CAN2 communication modules
Net communicates with two level single cluster controller, and access CAN1 bus outer nets by CAN1 communication modules communicates with external management system, leads to
Cross RS485 communication modules 485 bus outer nets of access to communicate with inverter, the AC/DC power supply modules are to whole three class control device
It is powered, and is powered after a loss of power by RTCC stand-by power supplies.
A kind of more cluster parallel connection energy-storage systems of container for having multi-stage protection concurrently disclosed in the utility model, its course of work
For：
The breaker of plastic casing of all battery clusters is closed, communication period is forbidden any battery cluster charge or discharge；
Local monitor unit in battery pack gathers and pre-processes battery module information, is sent out to the single cluster controller of place cluster
Send status information；
Single cluster controller collects this cluster battery data, all batteries of this balanced cluster, calculates in real time and reports single cluster operation letter
Breath, including available charge power and discharge power of voltage, electric current, insulaion resistance, maximum etc.；
After top controller collects the status frames of all single cluster controllers, judge whether each cluster meets service condition, wrap
State-of-charge and warning information are included, the battery cluster that failure be present is isolated in outside system, from trouble-free all clusters, to highest electricity
Cluster is pressed to send operating instruction.After single cluster controller receives operating instruction, failure is judged whether by single-chip microcomputer, if without event
Barrier, then preliminary filling relay is first closed, main relay is closed again after a period of time, preliminary filling relay is disconnected after the stipulated time, it is single
Cluster enters normal parallel running mode.Thereafter, top controller selects maximal pressure cluster from remaining fault-free battery cluster every time,
If pressure difference is less than regulation pressure difference limit value, just operating instruction is sent to the cluster；If pressure difference is more than defined pressure difference limit value, forbid the cluster
Access system, system is just may be incorporated into after meeting service condition；Until all trouble-free battery clusters realize in parallel, container energy storage
System enters normal operating conditions.
In running, top controller judges that single cluster alerts, there is provided singly cuts and forbids charging and discharging two class protection.
If meeting singly to cut protection, instruction is singly cut in transmission, single cluster controller receive singly cut instruct after will be switched off the main relay of the cluster, treat electricity
Stream is decreased to safe range, disconnects breaker of plastic casing, the single cluster battery pack to break down is isolated into system, and forbids the cluster certainly
Row access system works.If top layer control failure, single cluster controller will perform local protection, modeling is disconnected after first disconnecting main relay
Case circuit breaker.If being unsatisfactory for single tangent condition, top controller is sent according to corresponding Protection parameters to outside EMS
Forbid charging, forbid the request such as electric discharge, when meeting alarm clearing condition, charged to the transmission recovery of outside EMS, be extensive
The requests such as multiple electric discharge.
Technology contents and technical characteristic of the present utility model are had revealed that as above, but those skilled in the art still may be used
A variety of replacements and modification without departing substantially from the utility model spirit can be made based on announcement of the present utility model, therefore, this practicality is new
Type protection domain should be not limited to the content disclosed in embodiment, and should replace and repair without departing substantially from of the present utility model including various
Decorations, and covered by present patent application claim.
Claims (5)
1. a kind of more cluster parallel connection energy-storage systems of container for having multi-stage protection concurrently, including multiple single cluster energy-storage systems and three class control
Device, it is characterised in that：In parallel and communicated with a three class control device, the single cluster energy-storage system between multiple single cluster energy-storage systems
By multiple battery cases, safe power supply module, two level single cluster controller forms, wherein：
The battery case is made up of more 2 and 16 string single battery cores and local monitor unit, is sequentially connected in series between battery case, while this
Using Network Communication in CAN1 buses between ground monitoring unit；
The battery case of safe power supply module positive-negative input end connection series connection, the positive-negative output end of the safe power supply module of each cluster are in parallel
The high pressure both positive and negative polarity output of container energy-storage system is accessed, the two level single cluster controller carries out observing and controlling to safe power supply module,
Accessed between CAN1 buses Intranet and battery case and communicated by CAN1 interfaces simultaneously, CAN2 buses are accessed by network interface in CAN2
Intranet communicates with three class control device；
The three class control device is communicated by CAN1 bus outer nets with external management system, and inversion is accessed by 485 bus outer nets
Device.
A kind of 2. more cluster parallel connection energy-storage systems of container for having multi-stage protection concurrently according to claim 1, it is characterised in that：
The local monitor unit includes voltage acquisition module, temperature collect module, local monitor single-chip microcomputer, active equalization module, quilt
Dynamic balance module, photoelectric alarm module and CAN1 communication modules, wherein magnitude of voltage of the voltage acquisition module to each single battery core
It is acquired, and sends to local monitor single-chip microcomputer and the feeding two level single cluster control of CAN1 buses Intranet is accessed by CAN1 communication modules
In device processed, the temperature collect module is acquired by temperature sensor to the temperature of each single battery core, and is sent to this
Ground monitoring singlechip accesses CAN1 buses Intranet by CAN1 communication modules and is sent into two level single cluster controller, while local monitor
Single-chip microcomputer receives the well-balanced adjustment control signal that two level single cluster controller sends over, and passes through active equalization module or passive balanced
Module is boosted or decompression processing.
A kind of 3. more cluster parallel connection energy-storage systems of container for having multi-stage protection concurrently according to claim 1, it is characterised in that：
The safe power supply module has positive-negative input end, positive-negative output end, preliminary filling relay, main relay and breaker of plastic casing, its
Middle breaker of plastic casing is connected on positive-negative output end, is two-way high pressure breaker of plastic casing, controls the break-make of output, the preliminary filling relay
Device is in parallel with main relay, is then connected on again between electrode input end and breaker of plastic casing.
A kind of 4. more cluster parallel connection energy-storage systems of container for having multi-stage protection concurrently according to claim 1, it is characterised in that：
The two level single cluster controller includes single cluster control single chip computer, CAN1 communication modules, CAN2 communication modules, insulation module, AC/DC
Power supply module, relay driving module and RTCC stand-by power supplies, wherein single cluster control single chip computer are accessed by CAN1 communication modules
CAN1 buses Intranet receives the voltage and temperature data that battery case sends over, and then carries out total electricity that processing statistics obtains the cluster
The data such as stream, total voltage, total insulaion resistance, and CAN2 bus Intranets are accessed by CAN2 communication modules and send data to three-level
Controller, while single cluster control single chip computer drives the main relay and preliminary filling in safe power supply module by relay driving module
Relay, the AC/DC power supply modules are powered to whole two level single cluster controller, and pass through RTCC standby electricities after a loss of power
Source powers.
A kind of 5. more cluster parallel connection energy-storage systems of container for having multi-stage protection concurrently according to claim 1, it is characterised in that：
The three class control device includes three class control single-chip microcomputer, CAN1 communication modules, CAN2 communication modules, RS485 communication modules, AC/
DC power supply modules and RTCC stand-by power supplies, three class control single-chip microcomputer access CAN2 buses Intranet and two level by CAN2 communication modules
Single cluster controller communicates, and access CAN1 bus outer nets by CAN1 communication modules communicates with external management system, is led to by RS485
Letter module accesses 485 bus outer nets and communicated with inverter, and the AC/DC power supply modules are powered to whole three class control device,
And powered after a loss of power by RTCC stand-by power supplies.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104453A (en) * | 2017-05-11 | 2017-08-29 | 沃太能源南通有限公司 | A kind of many clusters of the container for having multi-stage protection concurrently energy-storage system in parallel |
| CN109067811A (en) * | 2018-10-22 | 2018-12-21 | 南京科远自动化集团股份有限公司 | The method of intranet and extranet processing unit automatic identification position for physics isolation net gap |
| CN109980680A (en) * | 2018-12-24 | 2019-07-05 | 深圳供电局有限公司 | The micro-grid system for having function of safety protection |
| CN111431231A (en) * | 2020-03-31 | 2020-07-17 | 清华大学 | Battery grouping framework based on flexible connection and redundancy |
| CN112968224A (en) * | 2021-04-13 | 2021-06-15 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Multi-system container type power battery unit for ship and system architecture thereof |
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2017
- 2017-05-11 CN CN201720519955.7U patent/CN206807024U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104453A (en) * | 2017-05-11 | 2017-08-29 | 沃太能源南通有限公司 | A kind of many clusters of the container for having multi-stage protection concurrently energy-storage system in parallel |
| CN109067811A (en) * | 2018-10-22 | 2018-12-21 | 南京科远自动化集团股份有限公司 | The method of intranet and extranet processing unit automatic identification position for physics isolation net gap |
| CN109067811B (en) * | 2018-10-22 | 2021-04-20 | 南京科远智慧科技集团股份有限公司 | Method for automatically identifying position of internal and external network processing unit for physical isolation network gate |
| CN109980680A (en) * | 2018-12-24 | 2019-07-05 | 深圳供电局有限公司 | The micro-grid system for having function of safety protection |
| CN109980680B (en) * | 2018-12-24 | 2020-11-03 | 深圳供电局有限公司 | Little grid system that possesses safety protection function |
| CN111431231A (en) * | 2020-03-31 | 2020-07-17 | 清华大学 | Battery grouping framework based on flexible connection and redundancy |
| CN111431231B (en) * | 2020-03-31 | 2024-04-26 | 清华大学 | Battery grouping architecture based on flexible connection and redundancy |
| CN112968224A (en) * | 2021-04-13 | 2021-06-15 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Multi-system container type power battery unit for ship and system architecture thereof |
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Address after: 226100 No.888, Jiuhua Road, high tech Zone, Nantong City, Jiangsu Province Patentee after: Wotai Energy Co.,Ltd. Address before: 226000 No. 888 Jiuhua Road, Tongzhou District, Nantong City, Jiangsu Province Patentee before: NEOVOLTAIC ENERGY NANTONG Co.,Ltd. |