CN111559271A - Battery replacing cabinet system - Google Patents
Battery replacing cabinet system Download PDFInfo
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- CN111559271A CN111559271A CN202010514209.5A CN202010514209A CN111559271A CN 111559271 A CN111559271 A CN 111559271A CN 202010514209 A CN202010514209 A CN 202010514209A CN 111559271 A CN111559271 A CN 111559271A
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- 230000007613 environmental effect Effects 0.000 claims abstract description 9
- 230000005611 electricity Effects 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000003993 interaction Effects 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims 1
- 238000005457 optimization Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/80—Exchanging energy storage elements, e.g. removable batteries
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Abstract
The invention relates to a battery replacement cabinet system, and belongs to the field of battery charging control. The battery replacement cabinet system can support different charging strategies, flexibly adjust charging power and perform self-protection of the system during power distribution. The system comprises: the system comprises an industrial personal computer, a main control board, a cabinet control power supply, a plurality of bin control boards, a plurality of charging power supplies and a plurality of rectifying power supplies which are connected by a CAN bus; the industrial personal computer provides a setting function of the charging strategy, and the main control board is used for receiving the charging strategy issued by the industrial personal computer and distributing charging power for each charging power supply; the rectification power supply is used for converting alternating current into direct current and providing input power for the charging power supply; the charging power supplies are communicated with the rechargeable battery through RS485 and are responsible for charging the battery, and all the charging power supplies share the total power of the rectifying power supply; the cabinet control power supply is responsible for providing other electricity except for charging the battery in the complete machine of the battery replacement cabinet system; the bin control board is used for detecting environmental parameters in the corresponding bin body and controlling the switch of the door lock of the corresponding bin body.
Description
Technical Field
The invention relates to a battery replacement cabinet system, and belongs to the field of battery charging control.
Background
The market space of the electric vehicle is getting bigger and bigger due to the gradual environmental importance of the society and the annual reduction of petroleum resources. For battery replacement personnel, it is most desirable to solve the problem of battery charging, especially those who need to continuously use electric vehicles, such as the personnel who take a bill and send a takeout, and it is desirable that the battery can be charged as soon as possible so as to ensure that the takeout can be sent to the takeout at a ready point. Based on the market demand, a new type of service is slowly developed, namely a battery replacement service. In order to meet the battery replacement requirements of battery replacement personnel, the battery replacement cabinet needs to ensure that a rechargeable and usable battery exists in the cabinet body as far as possible, and therefore the battery replacement cabinet needs to charge the battery quickly in time.
At present, a batch of battery changing cabinets supporting quick charging are developed in the market, and the aim of supporting the quick charging is achieved to a certain extent through an integrated quick charging algorithm. However, the demand of rapid charging is flexible and various, and different charging strategies are required under different use scenarios. Therefore, it is necessary to define the charging strategy by the user according to the requirement of the user without being limited to a fixed charging method, but the system architecture of the machine must support the requirement.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the battery replacement cabinet system can support different charging strategies, flexibly adjust charging power and perform self-protection of the system during power distribution.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a battery replacement cabinet system is applied to a battery replacement cabinet, and the battery replacement cabinet comprises a plurality of bin bodies for storing batteries;
the system comprises: the system comprises an industrial personal computer, a main control board, a cabinet control power supply, a plurality of bin control boards, a plurality of charging power supplies and a plurality of rectifying power supplies which are connected by a CAN bus;
the industrial personal computer is used as a junction of human-computer interaction, provides a setting function of a charging strategy, runs app for executing a battery replacement service, and can communicate with a server;
the main control board is used as a central pivot for charging power distribution control and is used for receiving a charging strategy issued by the industrial personal computer and distributing charging power for each charging power supply;
the rectification power supply is used for converting alternating current into direct current and providing input power for the charging power supply;
the charging power supplies are communicated with the charging batteries through RS485, each charging power supply is responsible for charging one battery, and the charging power supplies share the total power of the rectifying power supply;
the cabinet control power supply is responsible for supplying other electricity except for charging the battery in the complete machine of the battery replacement cabinet system;
the bin control board is arranged in one-to-one correspondence with bin bodies on the battery replacing cabinet and used for detecting environmental parameters in the corresponding bin bodies and controlling the switches of the door locks of the corresponding bin bodies.
As a further optimization, the main control board is further connected with a peripheral for detecting environmental parameters of the system, and the peripheral and the main control board communicate through a GPIO.
As further optimization, the industrial personal computer supports a user to flexibly define charging strategies, and different charging strategies are realized by adjusting the consumed power of each charging power supply.
As a further optimization, the main control board distributes charging power for each charging power supply, and specifically includes:
firstly, the main control board sends a static broadcast to order the rectifying power supply and the charging power supply to enter a standby state, and the charging power supply stops charging the battery;
after receiving the broadcast data, each rectification power supply sends the power of the rectification power supply to the main control board, and meanwhile, after receiving the broadcast data, each charging power supply sends the power consumption condition of the charging power supply, the battery access condition and the maximum charging power allowed by the battery to the main control board;
and the main control board distributes power for each charging power supply according to a charging strategy defined by a user and by combining corresponding constraint conditions.
As a further optimization, the corresponding constraints include:
satisfy PConsumption unit≤PGeneral assembly，
PGeneral assembly＝P1+P2+P3+……+Pm；
PConsumption unit＝p1+p2+p3+……+pn；
Wherein, PGeneral assemblyThe total power of a rectified power supply in the system; pmThe power of the mth rectifying power supply, wherein m is the number of the rectifying power supplies in the system; pConsumption unitThe total power consumed by the charging power supply in the system; p is a radical ofnThe power consumed by the nth charging power supply is n, and n is the number of the charging power supplies in the system.
The invention has the beneficial effects that:
by adopting the battery replacement cabinet with the system architecture, a user can flexibly adjust the power to charge the battery in a user-defined manner; through establishing the flow of communication between the charging modules, the work cooperation of each charging module is improved, and meanwhile, the overload of the power of a rectification power supply can be avoided, so that the reliability of a system of the power exchange cabinet is improved.
Drawings
Fig. 1 is a schematic diagram of a battery replacement system according to an embodiment of the present invention.
Detailed Description
The invention aims to provide a battery replacement cabinet system which can support different charging strategies, flexibly adjust charging power and perform self-protection of the system during power distribution.
The scheme of the invention is further described by combining the drawings and the embodiment.
As shown in fig. 1, the battery replacement cabinet system in this embodiment includes: the industrial personal computer, the main control board, a plurality of warehouse control boards, m rectifying power supplies, n charging power supplies, a cabinet control power supply and other modules are connected through a CAN bus, namely, the modules are communicated through the CAN.
The main control board is connected with peripherals for metering electric quantity and the like, can detect all environmental parameters of the system, and is communicated with the peripherals through GPIO. The bin control board can control the door lock switch of each bin body, the bin body is a container for storing batteries, and when the batteries are charged, the batteries need to be placed in the bin body and connected with a charging power supply. In the system architecture, the charging power supplies and the batteries are communicated by RS485, one charging power supply can charge only one battery, and all the charging power supplies share the total power of the rectifying power supply.
Each module is specifically described as follows:
an industrial personal computer: in the man-machine interaction pivot, a user can set a charging strategy in an industrial personal computer, and an app for executing the battery swapping service runs in the charging strategy and can communicate with a server;
the main control board: detecting environmental parameters of the whole system, such as temperature, electric quantity of an electric meter and the like, serving as a central pivot for charging power distribution control, and controlling the charging power of each charging power supply;
a bin control board: detecting environmental parameters such as door lock state in the bin body, and controlling the opening and closing of the bin body door lock;
rectifying a power supply: belongs to power output equipment and can convert alternating current into direct current;
a charging power supply: belongs to power output equipment, and the source of the output power of the power output equipment is from a rectified power supply. One charging power supply can charge only one battery at a time;
the cabinet controls the power: the power output equipment is characterized in that except for charging the battery, other electricity consumption of the whole machine is from a cabinet-controlled power supply.
In this embodiment, the modules are connected by a CAN bus, that is, each module serves as a node, and the nodes communicate with each other by using the CAN.
CAN communication is an ISO international standardized serial communication protocol, the high performance and the reliability of the CAN communication are widely accepted, and the CAN communication is introduced into a power exchange cabinet system to better meet the requirements of the power exchange cabinet. The CAN communication has the following communication characteristics:
(1) the number of nodes in the CAN network is theoretically unlimited, so that the modules mounted on the CAN bus CAN be effectively expanded according to needs.
(2) The CAN network CAN distribute communication addresses for each node, and point-to-point communication among the nodes CAN be realized.
(3) The CAN network supports broadcasting, and when one node sends broadcast data, other nodes CAN receive the broadcast data.
Therefore, based on the characteristics of CAN communication, a control and interaction system based on the communication of the internal modules CAN be very simply and conveniently constructed by formulating the communication protocol among the modules. The data sent by the CAN node has two data types, one is address data which represents a data receiving party, and the other is functional data which is used for completing a certain communication function.
Taking "the user opens the door of the No. 1 cabin body" as an example, the industrial personal computer only needs to send the following data to the CAN bus:
| serial number | Data of | Data type | Description of data |
| 1 | CON_ADDR_1 | Address data | CAN communication address of warehouse control board 1 |
| 2 | OPEN_DOOR | Functional data | Door opening command code |
After receiving the data, the warehouse control board 1 executes door opening according to the warehouse opening command code.
Taking the example that the industrial personal computer requires that the No. 1 charger and the No. 2 charger obtain maximum power charging preferentially, the industrial personal computer only needs to send the following data to the CAN bus:
| serial number | Data of | Data type | Description of data |
| 1 | MAIN_CTR_ADDR | Address data | CAN communication address of main control board |
| 2 | PRIORITY | Functional data | Command code indicating priority charging command |
| 3 | SET | Functional data | Priority set |
Because the industrial computer requires that the No. 1 charger and the No. 2 charger obtain maximum power charging preferentially, the SET is {1,2}, preferentially.
In the above system architecture of the present embodiment, the rectified power source is a power input source of the charging power source, that is, the power of the charging power source is from the rectified power source, so as to facilitate the following description. The power of the rectified power supply is set to be Pi(i ═ 1,2,. m), the total charging power of the system is m rectified currentsThe total source power, the total power of the rectified power supply is PIn the aggregate of the above-mentioned processes,then:
Pgeneral assembly＝P1+P2+P3+……+Pm(formula 1)
Assuming that the total power consumed by charging the n charging power supplies is PThe consumption of the raw materials is reduced,then in order to ensure that the rectified power supply is not overloaded, the system must satisfy:
Pconsumption unit≤PGeneral assembly(formula 2)
Assuming that the power consumed when the ith power supply is charged is piThen, there are:
Pconsumption unit＝p1+p2+p3+……+pn(formula 3)
Due to total charging power PGeneral assemblyThe total power consumed by charging the charging power supply is PConsumption unitNot higher than total power P of the rectified power supplyGeneral assemblyTherefore, the charging modes of different strategies only need to adjust the power consumption of each charger, and therefore flexible self-definition of the strategies is achieved.
Therefore, no matter what algorithm is adopted to set the power distribution strategy, the final distribution result is an output set { d }1,d2,d3…..,dnIn which d isiThe charging power allocated to the ith charger is expressed as (i ═ 1,2,. n), and the quick charging of the battery (charging a certain battery with the maximum power) is only one special scheme in the allocation strategy.
After the problem of the power distribution strategy is solved, how to ensure that the rectified power supply cannot be overloaded at any time is ensured, namely that the total power consumption of the charging power supply is not more than the total power of the rectified power supply at any time. To solve this problem, we define the power distribution flow during charging as follows:
step 1, the main control board sends static broadcast to order the rectification power supply and the charging power supply to enter a standby state, the charging power supply does not charge the battery, and the data sent to the CAN bus by the main control board is as follows:
step 2, after receiving the broadcast data in the step one, each rectification power supply sends the power of the rectification power supply to the main control board, and the data sent by each rectification power supply to the CAN bus are as follows:
| serial number | Data of | Data type | Description of data |
| 1 | MAIN_CTR_ADDR | Address data | Master control board address |
| 2 | POWER | Functional data | Rectified mains power |
After receiving the broadcast of step 1, each charging power supply sends the power consumption condition of the charging power supply, the battery access condition, the maximum charging power allowed by the battery and the current electric quantity of the battery to the main control board, and sends broadcast data to the CAN bus as follows:
since each charging power supply is still in a standby state and does not charge the battery, the charging power consumption USAGE is 0. The battery access condition, the maximum charging power allowed by the battery, and the current electric quantity of the battery are important data affecting the charging strategy, so that the charging power supply needs to read the important data from the battery and report the data to the main control board.
Step 3, the main control board performs power distribution for each charging power supply according to a charging strategy defined by a user and in combination with the formula 1, the formula 2 and the formula 3, for example, when power is distributed to the charging power supply 1, the CAN bus sends broadcast data as follows:
| serial number | Data of | Data type | Description of data |
| 1 | charGE_ADDR_1 | Address data | CAN communication address of charging power supply 1 |
| 2 | DEVIDE_POWER | Functional data | Power consumed by charging power supply |
Similarly, power may be distributed to other charging sources.
When power distribution is carried out each time, the main control board sends a static command to enable the charger to be in a standby state and not to charge the battery, so that the overload of the rectifying power supply cannot be caused at any time, and the safety of the system is guaranteed.
Claims (5)
1. A battery replacement cabinet system is applied to a battery replacement cabinet, and the battery replacement cabinet comprises a plurality of bin bodies for storing batteries; it is characterized in that the preparation method is characterized in that,
the system comprises: the system comprises an industrial personal computer, a main control board, a cabinet control power supply, a plurality of bin control boards, a plurality of charging power supplies and a plurality of rectifying power supplies which are connected by a CAN bus;
the industrial personal computer is used as a junction of human-computer interaction, provides a setting function of a charging strategy, runs app for executing a battery replacement service, and can communicate with a server;
the main control board is used as a central pivot for charging power distribution control and is used for receiving a charging strategy issued by the industrial personal computer and distributing charging power for each charging power supply;
the rectification power supply is used for converting alternating current into direct current and providing input power for the charging power supply;
the charging power supplies are communicated with the charging batteries through RS485, each charging power supply is responsible for charging one battery, and the charging power supplies share the total power of the rectifying power supply;
the cabinet control power supply is responsible for supplying other electricity except for charging the battery in the complete machine of the battery replacement cabinet system;
the bin control board is arranged in one-to-one correspondence with bin bodies on the battery replacing cabinet and used for detecting environmental parameters in the corresponding bin bodies and controlling the switches of the door locks of the corresponding bin bodies.
2. The battery changing cabinet system as claimed in claim 1,
the main control board is also connected with a peripheral for detecting the environmental parameters of the system, and the peripheral and the main control board are communicated through GPIO.
3. The battery changing cabinet system as claimed in claim 1,
the industrial personal computer supports a user to flexibly define charging strategies, and different charging strategies are realized by adjusting the consumed power of each charging power supply.
4. The battery changing cabinet system as claimed in claim 1,
the main control board distributes charging power for each charging power supply, and the main control board specifically comprises:
firstly, the main control board sends a static broadcast to order the rectifying power supply and the charging power supply to enter a standby state, and the charging power supply stops charging the battery;
after receiving the broadcast data, each rectification power supply sends the power of the rectification power supply to the main control board, and meanwhile, after receiving the broadcast data, each charging power supply sends the power consumption condition of the charging power supply, the battery access condition and the maximum charging power allowed by the battery to the main control board;
and the main control board distributes power for each charging power supply according to a charging strategy defined by a user and by combining corresponding constraint conditions.
5. The battery changing cabinet system as claimed in claim 4,
the corresponding constraints include:
satisfy PConsumption unit≤PGeneral assembly，
PGeneral assembly＝P1+P2+P3+……+Pm；
PConsumption unit＝p1+p2+p3+……+pn；
Wherein, PGeneral assemblyThe total power of a rectified power supply in the system; pmThe power of the mth rectifying power supply, wherein m is the number of the rectifying power supplies in the system; pConsumption unitThe total power consumed by the charging power supply in the system; p is a radical ofnThe power consumed by the nth charging power supply is n, and n is the number of the charging power supplies in the system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010514209.5A CN111559271A (en) | 2020-06-08 | 2020-06-08 | Battery replacing cabinet system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010514209.5A CN111559271A (en) | 2020-06-08 | 2020-06-08 | Battery replacing cabinet system |
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| CN111559271A true CN111559271A (en) | 2020-08-21 |
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| CN112234691A (en) * | 2020-10-28 | 2021-01-15 | 深圳市赛德电源技术有限公司 | DCDC converter with integrated bin control function for power conversion cabinet |
| CN112440781A (en) * | 2020-11-21 | 2021-03-05 | 中联重科股份有限公司 | Vehicle-mounted charger, power supply system and engineering machinery |
| WO2023028855A1 (en) * | 2021-08-31 | 2023-03-09 | 宁德时代新能源科技股份有限公司 | Charging management method for battery swapping station, battery swapping cabinet, and system |
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| CN112234691A (en) * | 2020-10-28 | 2021-01-15 | 深圳市赛德电源技术有限公司 | DCDC converter with integrated bin control function for power conversion cabinet |
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Application publication date: 20200821 |