CN206807150U - A kind of expansible group string data large-scale energy storage system - Google Patents

A kind of expansible group string data large-scale energy storage system Download PDF

Info

Publication number
CN206807150U
CN206807150U CN201720519961.2U CN201720519961U CN206807150U CN 206807150 U CN206807150 U CN 206807150U CN 201720519961 U CN201720519961 U CN 201720519961U CN 206807150 U CN206807150 U CN 206807150U
Authority
CN
China
Prior art keywords
module
positive
energy
modules
output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201720519961.2U
Other languages
Chinese (zh)
Inventor
司修利
林栋�
袁宏亮
王珺
张金龙
顾强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wotai Energy Co.,Ltd.
Original Assignee
NEOVOLTAIC ENERGY NANTONG CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEOVOLTAIC ENERGY NANTONG CO Ltd filed Critical NEOVOLTAIC ENERGY NANTONG CO Ltd
Priority to CN201720519961.2U priority Critical patent/CN206807150U/en
Application granted granted Critical
Publication of CN206807150U publication Critical patent/CN206807150U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of expansible group string data large-scale energy storage system, it is formed in parallel by multiple single cluster energy-storage systems, it is in series per cluster energy-storage system by 4 ~ 13 battery modules and a high-voltaghe compartment and inverter, power supply positive and negative terminal and high-voltaghe compartment the input positive and negative terminal of wherein 4 ~ 13 battery modules are sequentially connected in series to form loop, the output positive and negative terminal of the high-voltaghe compartment and the direct current positive and negative terminal of inverter connect, and pass through communication power supply bus connection communication port communication between each battery modules and high-voltaghe compartment, pass through 485 bus communications between high-voltaghe compartment and inverter, it is connected in parallel between the inverter of more cluster energy-storage systems by exchanging live wire with zero line realization is exchanged.

Description

A kind of expansible group string data large-scale energy storage system
Technical field
It the utility model is related to energy-storage system, more particularly to a kind of expansible group string data large-scale energy storage system.
Background technology
Extensive energy storage technology is intelligent grid, power scheduling, power network peak load shifting, the key technology of peak-frequency regulation.Lithium Ion battery is because it has the advantages that energy density is high, self-discharge rate is low, discharging voltage balance, has extended cycle life in multiple necks Domain is widely used, the inexorable trend that will develop in extensive power storage system using lithium battery as technology.Big rule Mould energy-storage system needs thousands of lithium ion single battery cores to form system by connection in series-parallel, and any monomer breaks down all can be to whole The operation of individual energy-storage system impacts, therefore how to ensure the safe, reliable, efficient operation of energy-storage system, is extensive The key technology of energy-storage system.
Meanwhile existing energy-storage system is not independent work, needed when needing and improving capacity by system halt operation, Again it is upper to design, and the access of subsystem can cause total voltage difference be present between a battery pack, damage high tension apparatus.
Utility model content
The defects of to overcome prior art, the utility model provide a kind of extensive energy storage system of expansible group string data System, influence caused by single battery core failure is run on whole energy-storage system can be reduced, reduce the single event of the devices such as inverter Barrier influences the operation of whole energy-storage system, and the safe and stable operation of whole energy-storage system is effectively ensured.
The utility model discloses a kind of expansible group string data large-scale energy storage system, by multiple single cluster energy-storage systems simultaneously Connection forms, and is in series per cluster energy-storage system by 4 ~ 13 battery modules and a high-voltaghe compartment and inverter, wherein 4 ~ 13 Power supply positive and negative terminal and high-voltaghe compartment the input positive and negative terminal of individual battery modules are sequentially connected in series to form loop, and the output of the high-voltaghe compartment is just The direct current positive and negative terminal of negative terminal and inverter connects, and is connected and led to by communication power supply bus between each battery modules and high-voltaghe compartment Believe port communication, by 485 bus communications between high-voltaghe compartment and inverter, pass through exchange between the inverter of more cluster energy-storage systems Live wire is connected in parallel with zero line realization is exchanged.
The battery modules have direct current positive-negative output end, 2 and 16 string single battery cores, plurality of voltages acquisition module, multichannel Temperature collect module, main control singlechip, active equalization module, CAN and fuse, wherein 2 and 16 string single battery cores Positive pole inline fuse is connected with direct current positive output end, and plurality of voltages acquisition module is adopted to the magnitude of voltage of each single battery core Collection, and send to main control singlechip, multiplex temperature collection module and the temperature of each single battery core is carried out by temperature sensor Collection, and send to main control singlechip, main control singlechip and the magnitude of voltage of each single battery core and temperature value are passed through into CAN communication mould Block is sent to high-voltaghe compartment, while receives the control signal that high-voltaghe compartment is sent, and main control singlechip is adjusted according to the control signal of reception Section active equalization module is boosted by each single battery core or decompression processing.
The high-voltaghe compartment has a direct current positive-negative input end, direct current positive-negative output end, breaker of plastic casing, AC breakers, it is main after Electrical equipment, preliminary filling relay, preliminary filling resistance, ac/dc power supply module, master control management module and energy management module, wherein moulding Case circuit breaker is connected between direct-flow input end and DC output end, preliminary filling relay and precharge group series connection after with main relay Parallel connection, then it is connected on again between direct-flow input end and DC output end, the direct-flow input end connection of ac/dc power supply module Direct current positive-negative input end, output end connection master control management module and energy management module, master control management module by it is built-in after Electrical equipment drive module controls main relay and preliminary filling relay, and is communicated by built-in CAN with battery modules, with And communicated with energy management module, the energy management module is communicated by 485 built-in communication modules with inverter.
The ac/dc power supply module is built-in with DC/DC modules and AC/DC modules, and the input of DC/DC modules connects Direct current positive-negative input end is connect, AC/DC module inputs connect power network by AC breakers.
The master control management module is built-in with master control management single-chip microcomputer, the Power convert mould being connected with master control management single-chip microcomputer Block, relay driving module, CAN, current sensor, the output end and Power convert of ac/dc power supply module Module is connected, and master control management single-chip microcomputer is communicated by CAN with battery modules and energy management module, current sensor The electric current of output circuit is detected, and is sent into master control management single-chip microcomputer.
The energy management module is built-in with energy management single-chip microcomputer, the Power convert mould being connected with energy management single-chip microcomputer Block, CAN and 485 communication modules, the output end of ac/dc power supply module are connected with power transfer module, energy Management single-chip microcomputer is communicated by CAN with master control management module, is communicated by 485 communication modules with inverter.
Breaker of plastic casing is two-way high pressure breaker of plastic casing.
Compared with prior art, a kind of expansible group string data large-scale energy storage system of the present utility model, have as follows Usefulness:
Common large-scale energy storage system uses centralized solution, i.e., multigroup battery system is directly in DC side parallel, outside A 250kw or 500kw high-power inverter is connect, the current sharing of different batteries in parallel connection groups can not be ensured, easily to high tension apparatus Cause to damage with battery core;The utility model, in the AC parallel connection of inverter, is passed through inverter and actively adjusted using group string data mode Charging and discharging currents are saved, can be very good to ensure the electric current current sharing of different parallel systems.
Common large-scale energy storage system uses centralized solution, when any single battery core breaks down, whole system It must all be stopped;The utility model, when any single battery core breaks down, can disconnect this electricity using group string data scheme The main relay and high pressure breaker of plastic casing of cluster where core, cut off charge-discharge circuit, ensure that other clusters work on.
Common large-scale energy storage system uses centralized solution, and when inverter breaks down, whole system is also necessary It is stopped;The utility model uses a group string data scheme, when an inverter breaks down, can close this inverter, Other clusters work on.
Generally expansible group string data large-scale energy storage system provide it is a kind of can safe, reliable, efficient operation side Case.
Brief description of the drawings
Fig. 1 is the circuit module figure of the expansible group string data large-scale energy storage system disclosed in the utility model;
Fig. 2 is the circuit module figure of the battery modules disclosed in the utility model;
Fig. 3 is the circuit module figure of the high-voltaghe compartment 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, a kind of expansible group string data large-scale energy storage system disclosed in the utility model, by multiple lists Cluster energy-storage system is formed in parallel, particularly, per cluster energy-storage system by 4 ~ 13 battery modules and a high-voltaghe compartment and inverse Become device to be in series, wherein the power supply positive and negative terminal of 4 ~ 13 battery modules and high-voltaghe compartment input positive and negative terminal are sequentially connected in series to be formed back Road, the output positive and negative terminal of the high-voltaghe compartment and the direct current positive and negative terminal of inverter connect, and between each battery modules and high-voltaghe compartment By communication power supply bus connection communication port communication, pass through 485 bus communications, more cluster energy storage systems between high-voltaghe compartment and inverter It is connected in parallel between the inverter of system by exchanging live wire with zero line realization is exchanged.
As shown in Fig. 2 the battery modules have direct current positive-negative output end, 2 and 16 string single battery cores, plurality of voltages collection Module, multiplex temperature collection module, main control singlechip, active equalization module, AD conversion module, CAN, Power convert Module and fuse, wherein 2 and 16 string single battery core composition rated voltages are 51.2V, rated capacity is 112Ah battery bag, And positive pole inline fuse is connected with direct current positive output end, plurality of voltages acquisition module is MAX14921, to each single battery core Magnitude of voltage be acquired, and sent to main control singlechip, multiplex temperature collection module by AD conversion module and passed by temperature Sensor is acquired to the temperature of each single battery core, and is sent by AD conversion module to main control singlechip, main control singlechip The magnitude of voltage of each single battery core and temperature value are sent to high-voltaghe compartment by CAN, while receives high-voltaghe compartment and sent out The control signal come, main control singlechip adjust active equalization module according to the control signal of reception and each single battery core are risen Pressure or decompression processing, power transfer module receive the 24V voltages that high-voltaghe compartment provides and main control singlechip are powered.
As shown in figure 3, the high-voltaghe compartment has a direct current positive-negative input end, direct current positive-negative output end, breaker of plastic casing, AC breaks Road device, main relay, preliminary filling relay, preliminary filling resistance, ac/dc power supply module, master control management module, energy management module And current sensor, wherein ac/dc power supply module is built-in with DC/DC modules and AC/DC modules, and DC/DC modules is defeated Enter end connection direct current positive-negative input end, AC/DC module inputs connect power network by AC breakers, in the master control management module Master control management single-chip microcomputer is equipped with, the power transfer module being connected with master control management single-chip microcomputer, relay driving module, CAN communication Module and AD sampling modules, the energy management module are built-in with energy management single-chip microcomputer, are connected with energy management single-chip microcomputer Power transfer module, CAN and 485 communication modules.
Particularly, the breaker of plastic casing is two-way high pressure breaker of plastic casing, and it is connected on direct-flow input end and direct current Between output end, preliminary filling relay and precharge group series connection after it is in parallel with main relay, be then connected on again direct-flow input end with Between DC output end, the output end of the DC/DC modules and AC/DC modules connects the Power convert of master control management module respectively The power transfer modules of module and energy management module, the 24V direct currents of output are converted into 5V direct currents and supply electricity to single-chip microcomputer power supply, CAN in the master control management module realizes the CAN communication with battery modules, and with energy management module CAN communication, the master control management single-chip microcomputer drive main relay or preliminary filling relay, current sense by relay driving module Device detects to the electric current of output circuit, and being sent into master control after being changed by AD sampling modules manages single-chip microcomputer, the energy pipe Reason single-chip microcomputer is communicated by 485 communication modules with inverter.
A kind of expansible group string data large-scale energy storage system disclosed in the utility model, its course of work are:
Breaker of plastic casing in each cluster high-voltaghe compartment is closed, DC power supply exports 24V voltages in high-voltaghe compartment, and supplies electricity to cluster Interior all battery modules;
Voltage acquisition module and temperature collect module in battery modules measure the voltage and temperature of each single battery core in real time Spend, and the master control management module in high-voltaghe compartment is sent to by communication power supply bus, so as to the uniformity of real-time judge battery core;If The voltage of any one economize on electricity core is significantly higher than other battery cores, and the active equalization module where triggering the battery core in battery modules will The high battery core of voltage boosts to the battery modules stagnation pressure, is charged to battery modules;If the voltage of any one economize on electricity core is substantially less than Battery modules stagnation pressure can be depressured the battery core charging low to voltage by other battery cores, active equalization module;
All battery modules and the same communication power supply bus communication all the way of high-voltaghe compartment in cluster;All battery cores in high-voltaghe compartment collection cluster Status data, if fault-free, first close preliminary filling relay, postpone 5 seconds, close main relay, postpone 1 second, then disconnect preliminary filling Relay, direct current supply is to inverter.If faulty, communication alert, preliminary filling and main relay are not closed.
If high-voltaghe compartment according to the magnitude of voltage of detection judge battery modules between voltage it is inconsistent, master control management module in high-voltaghe compartment The high battery modules of voltage can be sent to by communication power supply bus communication, be disappeared by the high battery modules of voltage from opening resistor The passive equalization function of consumption formula, reduces its voltage.
Communicated by CAN between master control management module and energy management module in high-voltaghe compartment, will owned in real time in cluster Voltage, temperature, state of charge information and the maximum allowable charging and discharging currents of present battery system of battery are sent to energy management mould Block, energy management module is according to the information received, by calculating, management strategy, is communicated by RS485 buses with inverter, Control the discharge and recharge behavior of inverter.
When system has alternating current input, high-voltaghe compartment closure AC breakers, internal AC/DC power supply is cut automatically Alternating Current Power Supply is shifted to, does not consume the electricity of battery in itself.
When in single cluster battery core exist overtension, brownout, charging current are excessive, discharge current is excessive, temperature is too high, When temperature is too low, energy management module controls the charging and discharging currents of inverter using the mode such as drop power and alarm.
When battery core breaks down in single cluster, master control administrative unit control two-way high pressure breaker of plastic casing disconnects in high-voltaghe compartment The charge-discharge circuit of this cluster battery system, guarantee do not influence whole energy-storage system.
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 (7)

1. a kind of expansible group string data large-scale energy storage system, is formed in parallel by multiple single cluster energy-storage systems, it is characterised in that: It is in series per cluster energy-storage system by 4 ~ 13 battery modules and a high-voltaghe compartment and inverter, wherein 4 ~ 13 battery moulds Group power supply positive and negative terminal and high-voltaghe compartment input positive and negative terminal be sequentially connected in series to form loop, the output positive and negative terminal of the high-voltaghe compartment with it is inverse Become the direct current positive and negative terminal connection of device, and led between each battery modules and high-voltaghe compartment by communication power supply bus connection communication port Letter, by 485 bus communications between high-voltaghe compartment and inverter, by exchanging live wire and friendship between the inverter of more cluster energy-storage systems Stream zero line, which is realized, to be connected in parallel.
A kind of 2. expansible group string data large-scale energy storage system according to claim 1, it is characterised in that:The electricity Pond module has direct current positive-negative output end, 2 and 16 string single battery cores, plurality of voltages acquisition module, multiplex temperature collection module, master Single-chip microcomputer, active equalization module, CAN and fuse are controlled, wherein 2 and 16 string single battery core positive pole inline fuses It is connected with direct current positive output end, plurality of voltages acquisition module is acquired to the magnitude of voltage of each single battery core, and is sent to master Single-chip microcomputer is controlled, multiplex temperature collection module is acquired by temperature sensor to the temperature of each single battery core, and is sent extremely Main control singlechip, main control singlechip send the magnitude of voltage of each single battery core and temperature value to high pressure by CAN Case, while the control signal that high-voltaghe compartment is sent is received, main control singlechip adjusts active equalization mould according to the control signal of reception Block is boosted by each single battery core or decompression processing.
A kind of 3. expansible group string data large-scale energy storage system according to claim 1, it is characterised in that:The high pressure Case has a direct current positive-negative input end, direct current positive-negative output end, breaker of plastic casing, AC breakers, main relay, preliminary filling relay, Preliminary filling resistance, ac/dc power supply module, master control management module and energy management module, wherein breaker of plastic casing are connected on directly Flow between input and DC output end, it is in parallel with main relay after preliminary filling relay and the series connection of precharge group, then connect again Between direct-flow input end and DC output end, the direct-flow input end connection direct current positive-negative input end of ac/dc power supply module, Output end connects master control management module and energy management module, and master control management module is controlled by built-in relay driving module Main relay and preliminary filling relay, and communicated by built-in CAN with battery modules, and and energy management module Communication, the energy management module are communicated by 485 built-in communication modules with inverter.
A kind of 4. expansible group string data large-scale energy storage system according to claim 3, it is characterised in that:The friendship Stream/direct current supply module is built-in with DC/DC modules and AC/DC modules, and the input connection positive negative input of direct current of DC/DC modules End, AC/DC module inputs connect power network by AC breakers.
A kind of 5. expansible group string data large-scale energy storage system according to claim 3, it is characterised in that:The master control Management module is built-in with master control management single-chip microcomputer, the power transfer module being connected with master control management single-chip microcomputer, relay driving mould Block, CAN, current sensor, the output end of ac/dc power supply module are connected with power transfer module, master control pipe Reason single-chip microcomputer is communicated by CAN with battery modules and energy management module, electricity of the current sensor to output circuit Stream is detected, and is sent into master control management single-chip microcomputer.
A kind of 6. expansible group string data large-scale energy storage system according to claim 3, it is characterised in that:The energy Management module is built-in with energy management single-chip microcomputer, the power transfer module being connected with energy management single-chip microcomputer, CAN and 485 communication modules, the output end of ac/dc power supply module are connected with power transfer module, and energy management single-chip microcomputer passes through CAN Communication module communicates with master control management module, is communicated by 485 communication modules with inverter.
A kind of 7. expansible group string data large-scale energy storage system according to claim 3, it is characterised in that:Plastic housing open circuit Device is two-way high pressure breaker of plastic casing.
CN201720519961.2U 2017-05-11 2017-05-11 A kind of expansible group string data large-scale energy storage system Active CN206807150U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720519961.2U CN206807150U (en) 2017-05-11 2017-05-11 A kind of expansible group string data large-scale energy storage system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720519961.2U CN206807150U (en) 2017-05-11 2017-05-11 A kind of expansible group string data large-scale energy storage system

Publications (1)

Publication Number Publication Date
CN206807150U true CN206807150U (en) 2017-12-26

Family

ID=60740423

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720519961.2U Active CN206807150U (en) 2017-05-11 2017-05-11 A kind of expansible group string data large-scale energy storage system

Country Status (1)

Country Link
CN (1) CN206807150U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108683202A (en) * 2018-04-12 2018-10-19 浙江正泰电器股份有限公司 Energy-storage system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108683202A (en) * 2018-04-12 2018-10-19 浙江正泰电器股份有限公司 Energy-storage system

Similar Documents

Publication Publication Date Title
CN102104257A (en) Energy storage system of apartment building, integrated power management system, and method of controlling the system
CN201985554U (en) Active self-management charging device for lithium ion power battery
CN107069976A (en) A kind of expansible group string data large-scale energy storage system
CN206195384U (en) Intelligent balanced charging and discharging circuit device of lithium cell group that can communicate
CN203747465U (en) Battery equalization charging device based on ZigBee wireless network
CN101599657A (en) The PWM shunting realizes the method for dynamic voltage balancing of battery pack in charging state
CN101752609B (en) MW-class Ni-MH battery energy storage system
CN206807150U (en) A kind of expansible group string data large-scale energy storage system
CN207234517U (en) A kind of storage battery parallel power supply system based on straight-flow system
CN103219766B (en) Non-floating charge lithium electricity type station DC power system
CN201191766Y (en) Electric automobile fast charging station
CN203326621U (en) Non floating charge lithium battery type DC (direct current) power system used for station
CN206195347U (en) Electric wire netting energy storage system
CN201947013U (en) A power supply manage system for compensating and balancing voltage difference
CN111431232A (en) Retired battery module protected by flexible connection
CN206992265U (en) Have active equalization and passive balanced distributed storage battery balancer concurrently
CN203326628U (en) Intelligent management system of cell
CN107946528B (en) Battery pack and battery pack system
CN207117203U (en) A kind of lithium-ion energy storage unit and unit group
CN106849283B (en) A kind of battery modules flexible connection protective device
CN105048612B (en) A kind of bidirectional electric automobile transmission intelligent charging spot
CN107154666A (en) A kind of batteries management system and electric power system
CN102969754A (en) Storage battery pack connection circuit and intelligent storage battery pack
CN212063567U (en) Power supply device for retired power battery
CN203119616U (en) Distributed direct-current power supply subsystem of intelligent substation

Legal Events

Date Code Title Description
GR01 Patent grant
CP03 Change of name, title or address
CP03 Change of name, title or address

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.