CN110854456A - Self-adaptive energy storage battery management unit and working method thereof - Google Patents
Self-adaptive energy storage battery management unit and working method thereof Download PDFInfo
- Publication number
- CN110854456A CN110854456A CN201911198675.0A CN201911198675A CN110854456A CN 110854456 A CN110854456 A CN 110854456A CN 201911198675 A CN201911198675 A CN 201911198675A CN 110854456 A CN110854456 A CN 110854456A
- Authority
- CN
- China
- Prior art keywords
- battery
- management unit
- communication
- energy storage
- monomer
- 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.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a self-adaptive energy storage battery management unit and a working method thereof, wherein the self-adaptive energy storage battery management unit comprises a battery monomer management unit and a battery cluster management unit which is communicated with the battery monomer management unit through a CAN bus or a WIFI network; acquiring battery monomer information through a battery monomer management unit; the information of the battery monomer is uploaded to a battery cluster management unit through a CAN bus; when the battery cell management unit detects that the CAN communication bus is abnormal, the battery cell management unit actively switches the communication channel into a WIFI networking; and uploading the information of the battery monomer to a battery cluster management unit through WIFI networking. According to the invention, the cell voltage and temperature data acquired by the battery management unit are transmitted and uploaded to the battery cluster management unit by adopting a main channel CAN communication interface and standby channel WIFI networking mode, so that the communication reliability of the battery management unit and the battery cluster management unit CAN be effectively improved on the premise of not increasing communication cables, and the battery management system has a good application prospect.
Description
Technical Field
The invention relates to the field of battery management systems of energy storage power stations, in particular to an energy storage battery (cluster) management unit adaptive to a hybrid communication mode based on wireless networking and CAN networking and a working method thereof.
Background
Along with the continuous development of the world power system and the increase of the power demand, the research on the energy storage technology of various countries around the world becomes deeper and deeper, the energy storage technology is further promoted, different energy storage modes are adapted to different regional environments, the battery energy storage is the energy storage technology which is developed faster at present, along with the further improvement of the safety of the lithium ion battery, the battery energy conversion efficiency is further improved, and the condition of the battery energy storage technology applied to the aspect of power station energy storage becomes mature day by day.
The importance of the energy storage battery management system is obvious as a core link for monitoring and judging the working state of the battery in the whole energy storage power station system. The charging and discharging strategy and the thermal management of the energy storage battery management system have great influence on the efficiency and the safety of the energy storage battery. Therefore, the reliability of the energy storage battery management system is of great importance to the safe and stable operation of the energy storage power station.
Compared with a vehicle-mounted power battery pack, the energy storage power station has a large number of batteries, and the communication scale and the structure of the battery management system are larger and more complex compared with those of the vehicle-mounted battery management system. At present, the number of batteries in a cabin of a design unit of an existing energy storage power station is large, so a battery management system of the energy storage power station generally adopts a layered architecture and comprises a single battery management unit, a battery cluster (group) management unit and the like. At present, a bottom layer monomer management unit and an upper layer battery cluster (group) management unit thereof are usually communicated by a CAN network, the communication network is complex, a plurality of connecting wire harnesses are connected, potential communication reliability problems easily exist, and the overall reliability and real-time performance of data of an energy storage power station are further influenced. Similar with on-vehicle battery management system, energy storage power station battery management system commonly used mainly adopts CAN or Modbus wired communication, and its connecting harness is numerous, has latent communication reliability problem easily, and maintains comparatively complicacy.
Therefore, a more reliable communication scheme of the energy storage power station battery management system is urgently needed, a powerful guarantee is provided for the transmission of the key data of the battery, and the stable operation of the energy storage battery management system is ensured, so that the overall reliability and safety of the energy storage battery system are further improved.
Disclosure of Invention
The invention provides a self-adaptive energy storage battery management unit and a working method thereof, aiming at the problem of data communication reliability of a current energy storage power station battery management system.
In order to achieve the purpose, the invention adopts the technical scheme that:
a self-adaptive energy storage battery management unit comprises a battery monomer management unit and a battery cluster management unit which is communicated with the battery monomer management unit through a CAN bus or a WIFI network;
the battery single management unit comprises a battery single management unit core processor, a battery voltage monitoring module, a battery temperature monitoring module and a wireless communication WIFI (wireless fidelity) transceiving module;
the battery cluster management unit includes: the battery pack management system comprises a battery pack management unit core processor, a battery pack voltage monitoring module, a battery pack current monitoring module, a battery pack temperature monitoring module, a battery pack insulation monitoring module and a wireless WIFI communication transceiving module.
A method for carrying out self-adaptive energy storage battery management by using the battery management unit comprises the following steps:
acquiring battery monomer information through a battery monomer management unit;
step (2) sending the information of the battery monomer to a battery cluster management unit through a CAN bus;
step (3), when the battery cell management unit detects that the CAN communication bus is abnormal, the battery cell management unit actively switches the communication channel into a WIFI networking; and uploading the information of the battery monomer to a battery cluster management unit through WIFI networking.
Further, in the step (3), in the process of switching the communication channel to the WIFI networking, data buffering meeting channel switching time is adopted to ensure that data are not lost continuously when the CAN communication is switched to the WIFI networking communication.
The invention has the beneficial effects that: the energy storage battery (cluster) management unit is adaptive to a hybrid communication mode based on wireless networking and CAN networking and a working method thereof, CAN effectively improve the communication reliability of the battery management unit and the battery cluster management unit on the premise of not increasing communication cables, and has a good application prospect.
Drawings
FIG. 1 is a flow chart of the present invention.
Fig. 2 is a networking diagram of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
The invention provides a self-adaptive energy storage battery management unit and a working method thereof, which CAN quickly and accurately judge CAN networking communication abnormality, quickly switch to a WIFI networking mode to continuously transmit battery data, effectively improve the communication reliability of an energy storage power station battery management system, ensure the stable operation of the energy storage battery management system, and prevent the influence of key data communication interruption or data abnormality on the efficient and safe operation of an energy storage battery pack.
As shown in fig. 2, the adaptive energy storage battery management unit of the present invention includes a single battery management unit and a battery cluster management unit, where the single battery management unit includes a single battery management unit core processor, a battery voltage monitoring module, a battery temperature monitoring module, and a wireless communication WIFI transceiver module;
the battery cluster management unit includes: the battery pack management system comprises a battery pack management unit core processor, a battery pack voltage monitoring module, a battery pack current monitoring module, a battery pack temperature monitoring module, a battery pack insulation monitoring module and a wireless WIFI communication transceiving module.
The method for performing adaptive energy storage battery management by using the battery management unit, as shown in fig. 1, comprises the following steps,
step (1), acquiring battery monomer information including voltage, temperature and other information of a battery core in a battery pack through a battery monomer management unit;
the method comprises the steps of collecting voltage and temperature information of an electric core in a battery pack by adopting an integrated chip method, selecting a special battery management chip of an LTC6811 series for voltage collection, and collecting the voltage of the electric core of the battery pack by adopting an internal integrated AD chip. The LTC6811 chip measures the voltage of 12 batteries connected in series, the acquisition and transmission of signals of the chip are controlled by the processor, the 16-bit high-precision ADC integrated inside can convert the acquired analog signals into digital signals, and the digital signals are output to the MC9S12XEP100 core single chip microcomputer of the battery management unit through the isoSPI interface. The I/O pin of the MC9S12XEP100 processor is selected for temperature collection, and 16 NTC temperatures are collected, wherein the NTC temperatures comprise 12 battery temperatures and 4 other temperatures.
And (2) as shown in the figure, CAN communication interfaces are arranged in the battery monomer management unit and the battery cluster management unit, and information such as the voltage and the temperature of a battery cell in the battery pack is transmitted to the battery cluster management unit through a CAN bus. The MC9S12 single chip microcomputer in the battery single management unit sends the acquired cell voltage and temperature information array to the CAN communication port of the MC9S12 of the battery single management system after processing through a built-in function, and establishes communication with the CAN communication module of the battery cluster management system, so that the function of sending data to the battery cluster management unit by the battery management single unit is realized.
Step (3), arranging WIFI communication interfaces in the battery monomer management unit and the battery cluster management unit, and sending information such as cell voltage, temperature and the like in the battery pack to the battery cluster management unit through WIFI networking; the battery cell management unit and the battery cluster management unit are internally provided with WIFI communication modules, communication protocols of the WIFI communication modules support TCP/IP and a vertical master-slave wireless communication network, cell voltage and temperature data collected by the battery cell management unit MC9S12 are processed by a wireless module of the battery management unit and converted into corresponding network data formats to be transmitted to a wireless transceiver module of the battery cluster management unit, and therefore cell voltage and temperature information of a battery pack is transmitted to the battery cluster management unit in a WIFI networking mode.
And (4) when the battery cell management unit normally works, the CAN networking communication is used as a main channel of the battery cell management unit, and the WIFI channel is in a standby state. When the battery cell management unit detects that the CAN communication bus is abnormal, the battery cell management unit actively switches the communication channel into a WIFI networking; in normal operation, after initialization of the CAN module of MC9S12 is completed, data is sent to the CAN send buffer. And starting to transmit when the position of the request mark to be transmitted is 1, and after the transmission is finished, setting 0 for waiting for the next transmission. When CAN communication is abnormal and interrupted, the CAN communication receives an interruption position 1, and at the moment, the single battery management unit detects the marker bit and actively switches a transmission channel into a WIFI wireless mode for data transmission; when the CAN communication is recovered, the CAN communication is actively switched to the CAN channel for transmission, so that the function of switching the data transmission channel is realized.
Step 5, data buffering meeting channel switching time is adopted to ensure that data are continuously not lost when CAN communication is switched to WIFI networking communication; by setting a certain data buffer area and a corresponding algorithm, data is continuously not lost when the data channel is switched.
The method can effectively improve the communication reliability of the battery management unit and the battery cluster management unit on the premise of not increasing communication cables, and has good application prospect.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A self-adaptive energy storage battery management unit is characterized by comprising a battery monomer management unit and a battery cluster management unit which is communicated with the battery monomer management unit through a CAN bus or a WIFI network;
the battery single management unit comprises a battery single management unit core processor, a battery voltage monitoring module, a battery temperature monitoring module and a wireless communication WIFI (wireless fidelity) transceiving module;
the battery cluster management unit includes: the battery pack management system comprises a battery pack management unit core processor, a battery pack voltage monitoring module, a battery pack current monitoring module, a battery pack temperature monitoring module, a battery pack insulation monitoring module and a wireless WIFI communication transceiving module.
2. A method for performing adaptive energy storage battery management by using the battery management unit is characterized by comprising the following steps:
acquiring battery monomer information through a battery monomer management unit;
step (2) sending the information of the battery monomer to a battery cluster management unit through a CAN bus;
step (3), when the battery cell management unit detects that the CAN communication bus is abnormal, the battery cell management unit actively switches the communication channel into a WIFI networking; and uploading the information of the battery monomer to a battery cluster management unit through WIFI networking.
3. The self-adaptive energy storage battery management method according to claim 2, wherein in the step (3), data buffering meeting channel switching time is adopted in the process of switching the communication channel to the WIFI networking so as to ensure that data are not lost continuously when CAN communication is switched to WIFI networking communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911198675.0A CN110854456A (en) | 2019-11-29 | 2019-11-29 | Self-adaptive energy storage battery management unit and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911198675.0A CN110854456A (en) | 2019-11-29 | 2019-11-29 | Self-adaptive energy storage battery management unit and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110854456A true CN110854456A (en) | 2020-02-28 |
Family
ID=69606177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911198675.0A Pending CN110854456A (en) | 2019-11-29 | 2019-11-29 | Self-adaptive energy storage battery management unit and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110854456A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324592A (en) * | 2021-06-30 | 2021-08-31 | 国网河北省电力有限公司信息通信分公司 | System, method, switching device and storage medium for pipe gallery monitoring |
| CN118051441A (en) * | 2024-04-03 | 2024-05-17 | 百思科新能源技术(青岛)有限公司 | Battery management unit software architecture and automatic code generation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105539187A (en) * | 2016-01-22 | 2016-05-04 | 深圳市智锂能源科技有限公司 | Intelligent supervision system of full life cycle of power lithium battery |
| CN109324501A (en) * | 2018-09-20 | 2019-02-12 | 四川长虹电器股份有限公司 | The battery management system of double MCU and its more redundant fault reconstructing methods |
| CN110265736A (en) * | 2019-06-20 | 2019-09-20 | 国电南瑞科技股份有限公司 | Energy-accumulating power station battery management system and method for early warning with intelligent fire alarm function |
-
2019
- 2019-11-29 CN CN201911198675.0A patent/CN110854456A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105539187A (en) * | 2016-01-22 | 2016-05-04 | 深圳市智锂能源科技有限公司 | Intelligent supervision system of full life cycle of power lithium battery |
| CN109324501A (en) * | 2018-09-20 | 2019-02-12 | 四川长虹电器股份有限公司 | The battery management system of double MCU and its more redundant fault reconstructing methods |
| CN110265736A (en) * | 2019-06-20 | 2019-09-20 | 国电南瑞科技股份有限公司 | Energy-accumulating power station battery management system and method for early warning with intelligent fire alarm function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324592A (en) * | 2021-06-30 | 2021-08-31 | 国网河北省电力有限公司信息通信分公司 | System, method, switching device and storage medium for pipe gallery monitoring |
| CN118051441A (en) * | 2024-04-03 | 2024-05-17 | 百思科新能源技术(青岛)有限公司 | Battery management unit software architecture and automatic code generation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107565183B (en) | Full-life-cycle application-oriented modular distributed battery management system and method | |
| CN103227494B (en) | Energy storage battery management system | |
| KR101433478B1 (en) | A Method of Auto CAN ID Setting for Energy Storage System Slave Battery Management System | |
| CN205160145U (en) | System based on mobile terminal monitor battery package | |
| CN110970914A (en) | Energy storage system with safety protection function | |
| CN104816813A (en) | Battery management redundancy control system for marine lithium battery pack | |
| CN111370788A (en) | Energy storage system BMS wireless networking communication system and method | |
| CN105915454A (en) | Multimode communication method for state monitoring of power transmission line | |
| CN202033053U (en) | Multi-information integration-based integrated transmission line state monitoring device | |
| CN105337367A (en) | System for monitoring battery pack based on mobile terminal | |
| CN113162237A (en) | Energy storage power station management system and method based on wireless communication and energy storage power station | |
| CN104377786B (en) | A kind of monitoring method and monitoring system at battery energy storage station | |
| CN110854456A (en) | Self-adaptive energy storage battery management unit and working method thereof | |
| CN114559846B (en) | Energy storage power station management device and management method | |
| CN110854954A (en) | Intelligent scheduling system and scheduling method for battery cluster of energy storage system | |
| CN221042893U (en) | Communication system structure of energy storage battery management system | |
| CN204068290U (en) | A kind of supervisory control system of battery energy storage station | |
| CN212422886U (en) | Battery pack information acquisition device | |
| CN210092273U (en) | Grouped battery data acquisition device and management system | |
| CN211280652U (en) | Battery monitoring system based on wireless transmission signal | |
| CN218777435U (en) | Battery management module | |
| CN111525602A (en) | Energy storage system and energy storage device | |
| CN208353021U (en) | A kind of dynamic balancing battery management system of intelligent photovoltaic low-speed electronic car owner | |
| CN211578918U (en) | Energy storage system BMS wireless networking communication system | |
| CN212257606U (en) | Energy storage battery management system for wired and wireless hybrid networking communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200228 |
|
| RJ01 | Rejection of invention patent application after publication |