CN114530920A - Power management method and system based on battery and super capacitor - Google Patents
Power management method and system based on battery and super capacitor Download PDFInfo
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- CN114530920A CN114530920A CN202210180436.8A CN202210180436A CN114530920A CN 114530920 A CN114530920 A CN 114530920A CN 202210180436 A CN202210180436 A CN 202210180436A CN 114530920 A CN114530920 A CN 114530920A
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- 239000003990 capacitor Substances 0.000 title claims abstract description 118
- 238000007726 management method Methods 0.000 title claims abstract description 43
- 238000007600 charging Methods 0.000 claims abstract description 75
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000010277 constant-current charging Methods 0.000 claims description 13
- 238000010278 pulse charging Methods 0.000 claims description 11
- 238000010281 constant-current constant-voltage charging Methods 0.000 claims description 7
- 238000004590 computer program Methods 0.000 claims description 3
- 239000003792 electrolyte Substances 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010280 constant potential charging Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
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- 238000005859 coupling reaction Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a power management method and a system based on a battery and a super capacitor, wherein the method comprises the following steps: the power management unit of the logistics equipment sets the super capacitor as a main power supply; when the logistics equipment waits for receiving or delivering goods, the charging unit charges the super capacitor; after waiting for finishing, use main power supply super capacitor to supply power for logistics equipment, after the operation is predetermine the time, if not charging to super capacitor, use the battery to supply power for logistics equipment. The embodiment of the application provides a power management method and system based on a battery and a super capacitor.
Description
Technical Field
The invention belongs to the field of logistics equipment, and particularly relates to a power management method and system based on a battery and a super capacitor.
Background
The logistics equipment comprises a shuttle, an AGV and the like. The shuttle car is an intelligent robot, can be programmed to realize tasks such as getting goods, transporting, placing and the like, can be communicated with an upper computer or a WMS system, and can realize functions such as automatic identification, access and the like by combining identification technologies such as RFID, bar codes and the like. An AGV is a transport vehicle equipped with an electromagnetic or optical automatic navigation device, capable of traveling along a predetermined navigation route, and having safety protection and various transfer functions. The logistics equipment usually uses a rechargeable storage battery as a power source, the charging time is long, and the working efficiency needs to be improved.
Disclosure of Invention
The embodiment of the application provides a power management method and system based on a battery and a super capacitor.
In a first aspect, an embodiment of the present application provides a power management method based on a battery and a super capacitor, including:
the power management unit of the logistics equipment sets the super capacitor as a main power supply;
when the logistics equipment waits for receiving or delivering goods, the charging unit charges the super capacitor;
and after waiting for the end, using a main power supply super capacitor to supply power to the logistics equipment, and after running for a preset time, if the super capacitor is not charged, using a battery to supply power to the logistics equipment.
Wherein, charging unit is super capacitor charges, includes:
the charging unit adopts the mode of charging in segments to charge the super capacitor, and comprises: pulse charging, constant current charging, constant voltage charging, and restart charging.
Wherein, charging unit is super capacitor charges, includes:
when the logistics equipment waits for receiving or delivering goods, the charging unit charges the super capacitor, and after the super capacitor is charged, the battery is charged.
Wherein, if the super capacitor is not charged, the logistics equipment is powered by a battery, and the method comprises the following steps:
and detecting the residual electric quantity of the super capacitor, and if the residual electric quantity of the super capacitor is smaller than the electric quantity threshold value, using the battery to supply power for the logistics equipment.
And the charging unit charges the super capacitor every time the logistics equipment waits for receiving or delivering goods.
In a second aspect, the present application provides a power management system based on a battery and a super capacitor, comprising: the system comprises a power management unit, a battery, a super capacitor and a charging unit;
the power management unit of the logistics equipment is used for setting the super capacitor as a main power supply;
the charging unit is used for: when the logistics equipment waits for receiving or delivering goods, the super capacitor is charged;
and after waiting for the end, using a main power supply super capacitor to supply power to the logistics equipment, and using a battery to supply power to the logistics equipment if the super capacitor is not charged after running for a preset time.
Wherein the charging unit is configured to:
the charging unit adopts the mode of charging in segments to charge the super capacitor, and comprises: pulse charging, constant current charging, constant voltage charging, and restart charging.
Wherein the charging unit is configured to:
when the logistics equipment waits for receiving or delivering goods, the charging unit charges the super capacitor, and the super capacitor charges the battery after charging is completed.
In a third aspect, the present application provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of any of the methods described above.
In a fourth aspect, the present application provides a logistics apparatus comprising any one of the above battery and super capacitor based power management systems.
The power management method and system based on the battery and the super capacitor in the embodiment of the application have the following beneficial effects:
the power management method based on the battery and the super capacitor comprises the following steps: the power management unit of the logistics equipment sets the super capacitor as a main power supply; when the logistics equipment waits for receiving or delivering goods, the charging unit charges the super capacitor; after waiting for finishing, use main power supply super capacitor to supply power for logistics equipment, after the operation is predetermine the time, if not charging to super capacitor, use the battery to supply power for logistics equipment. The embodiment of the application provides a power management method and system based on a battery and a super capacitor.
Drawings
FIG. 1 is a schematic flowchart of a power management method based on a battery and a super capacitor according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a power management system based on a battery and a super capacitor according to an embodiment of the present application.
Detailed Description
The present application is further described below with reference to the drawings and examples.
In the following description, the terms "first" and "second" are used for descriptive purposes only and are not intended to indicate or imply relative importance. The following description provides embodiments of the invention, which may be combined or substituted for various embodiments, and this application is therefore intended to cover all possible combinations of the same and/or different embodiments described. Thus, if one embodiment includes feature A, B, C and another embodiment includes feature B, D, then this application should also be construed to include embodiments that include A, B, C, D in all other possible combinations, even though such embodiments may not be explicitly recited in the text that follows.
The following description provides examples, and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made in the function and arrangement of elements described without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than the order described, and various steps may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined into other examples.
As shown in fig. 1, the power management method based on the battery and the super capacitor includes: s101, a power management unit of the logistics equipment sets a super capacitor as a main power supply; s103, when the logistics equipment waits for receiving or delivering goods, the charging unit charges the super capacitor; and S105, after the waiting is finished, using the main power supply super capacitor to supply power to the logistics equipment, and after the operation is carried out for a preset time, if the super capacitor is not charged, using a battery to supply power to the logistics equipment.
The super capacitor is a novel energy storage device between a traditional capacitor and a rechargeable battery, and has the characteristics of quick charge and discharge of the capacitor and the energy storage characteristic of the battery. A supercapacitor is a novel component that stores energy through an interfacial double layer formed between electrodes and an electrolyte. When the electrode contacts with the electrolyte, the solid-liquid interface generates stable double-layer charges with opposite signs under the action of coulomb force, intermolecular force and interatomic force, and the double-layer charges are called as interface double layers. The electric double layer supercapacitor is considered to be 2 inactive porous plates suspended in an electrolyte, and a voltage is applied to the 2 plates. The potential applied to the positive plate attracts negative ions in the electrolyte and the negative plate attracts positive ions, thereby forming an electric double layer capacitor on the surfaces of the two electrodes. The electric double layer capacitor may be classified into a carbon electrode double layer supercapacitor, a metal oxide electrode supercapacitor, and an organic polymer electrode supercapacitor according to the difference in electrode materials.
Compared with a storage battery and a traditional physical capacitor, the super capacitor has the following advantages:
the power density is high and can reach 102-104 kW/kg, which is far higher than the power density level of the storage battery. The cycle life is long, after 50-100 ten thousand high-speed deep charge-discharge cycles of several seconds, the characteristic change of the super capacitor is very small, and the capacity and the internal resistance are only reduced by 10-20%. The working temperature limit is wide, and the change of the capacity of the super capacitor is far smaller than that of a storage battery because the change of the adsorption and desorption speeds of ions in the super capacitor is not large under a low-temperature state. The working temperature range of the commercial super capacitor can reach minus 40 ℃ to plus 80 ℃. The super capacitor is maintenance-free, has high charging and discharging efficiency, has certain bearing capacity on overcharge and overdischarge, can be stably and repeatedly charged and discharged, and theoretically does not need maintenance. Green, heavy metal and other harmful chemical substances are not used in the production process of the super capacitor, and the service life of the super capacitor is longer, so that the super capacitor is a novel green power supply.
In some embodiments, the charging unit charges the super capacitor, including: the charging unit adopts the mode of segmentation charging to charge for super capacitor, includes: pulse charging, constant current charging, constant voltage charging, and restart charging. Specifically, pulse charging is mainly aimed at charging the supercapacitor for the first time or charging after long-term non-use, and the pulse charging process is ended when the terminal voltage of the supercapacitor is equal to the voltage set value at the end of pulse charging. When the pulse charging control is finished, the system automatically shifts to a constant current charging control state, and below a threshold value, the larger the current is, the faster the voltage increases. Because the super capacitor can be charged by large current, the charging speed is greatly increased by adopting a constant current mode at the stage, and the efficiency is higher. If the voltage is not limited at the moment of the constant-current charging end, the charging voltage is higher than the voltage threshold of the super capacitor, so that the super capacitor fails and is damaged due to overvoltage, and the effective capacitance value is reduced, so that the possibility of overvoltage is reduced by adopting a voltage control mode at the moment of the constant-current charging end. When the constant-current charging control is finished, the system automatically switches to a constant-voltage charging control state, if a constant-voltage charging method is adopted in the initial charging stage of the super capacitor, the current of the circuit topology is large, and the possibility of damage of a power device in the topology structure can be increased due to the long-term existence of large current; compared with a constant-current charging method, the charging speed is low, the charging current is low, and electric energy loss cannot be caused in the later charging period. When the preset conditions are met, the super capacitor is charged again, and different charging processes are started according to the corresponding charging conditions; in practical system application, the charging process is generally in two stages of constant-current charging and constant-voltage charging. The method adopts a segmented charging control mode, the super capacitor with the initial state of zero is firstly subjected to pulse charging, then is quickly subjected to constant-current charging to shorten the charging time, and finally is subjected to constant-voltage charging to avoid the occurrence of overlarge hidden current danger in the final charging period.
In some embodiments, the charging unit charges the super capacitor, including: when the logistics equipment waits for receiving or delivering goods, the charging unit charges the super capacitor, and the super capacitor charges the battery after charging is completed. If the super capacitor is not charged, the logistics equipment is powered by the battery, and the method comprises the following steps: and detecting the residual electric quantity of the super capacitor, and if the residual electric quantity of the super capacitor is smaller than the electric quantity threshold value, using the battery to supply power for the logistics equipment. The charging unit charges the super capacitor each time the logistics equipment waits for receiving or delivering goods.
The embodiment of the application provides a power management method and system based on a battery and a super capacitor.
The dual power supply's of logistics equipment management demand saves charge time, equipment can wait for through specific point when carrying out the task and connect goods or delivery, adopt super capacitor as the main power source, the time (about 5 seconds) that connects goods delivery can charge for super capacitor, supply equipment to last to use 3 minutes, if not charging again in 3 minutes, then adopt battery powered, when charging, preferentially charge super capacitor, charge to the battery again after super capacitor is full of.
As shown in fig. 2, the present application provides a power management system based on a battery and a super capacitor, comprising: a power management unit 201, a battery 202, a super capacitor 203 and a charging unit 204; the battery 202 is, for example, a lithium battery. The power management unit of the logistics equipment is used for setting the super capacitor as a main power supply; the charging unit 204 is configured to: when the logistics equipment waits for receiving or delivering goods, the super capacitor is charged; and after waiting for the end, using the main power supply super capacitor to supply power to the logistics equipment, and using a battery to supply power to the logistics equipment if the super capacitor is not charged after running for a preset time.
Wherein the charging unit is configured to: the mode that the charging unit adopted the segmentation to charge is super capacitor charging, includes: pulse charging, constant current charging, constant voltage charging, and restart charging.
Wherein the charging unit is configured to: when the logistics equipment waits for receiving or delivering goods, the charging unit charges the super capacitor, and the super capacitor charges the battery after charging is completed.
In the present application, embodiments of a power management system based on a battery and a super capacitor are substantially similar to embodiments of a power management method based on a battery and a super capacitor, and reference is made to the description of the embodiments of the power management method based on a battery and a super capacitor for relevant points.
The application also provides logistics equipment which comprises any one of the power management systems based on the battery and the super capacitor.
It is clear to a person skilled in the art that the solution according to the embodiments of the invention can be implemented by means of software and/or hardware. The "unit" and "module" in this specification refer to software and/or hardware that can perform a specific function independently or in cooperation with other components, where the hardware may be, for example, an FPGA (Field-Programmable Gate Array), an IC (Integrated Circuit), or the like.
The embodiment of the invention also provides a computer readable storage medium, which stores a computer program, and the program is executed by a processor to realize the steps of the power management method based on the battery and the super capacitor. The computer-readable storage medium may include, but is not limited to, any type of disk including floppy disks, optical disks, DVD, CD-ROMs, microdrive, and magneto-optical disks, ROMs, RAMs, EPROMs, EEPROMs, DRAMs, VRAMs, flash memory devices, magnetic or optical cards, nanosystems (including molecular memory ICs), or any type of media or device suitable for storing instructions and/or data.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only one logical functional division, and other division ways may be implemented in practice, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
All functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A power management method based on a battery and a super capacitor is characterized by comprising the following steps:
the power management unit of the logistics equipment sets the super capacitor as a main power supply;
when the logistics equipment waits for receiving or delivering goods, the charging unit charges the super capacitor;
and after waiting for the end, using a main power supply super capacitor to supply power to the logistics equipment, and after running for a preset time, if the super capacitor is not charged, using a battery to supply power to the logistics equipment.
2. The method for battery and supercapacitor based power management according to claim 1, wherein a charging unit charges the supercapacitor, comprising:
the charging unit adopts the mode of charging in segments to charge the super capacitor, and comprises: pulse charging, constant current charging, constant voltage charging, and restart charging.
3. The battery and supercapacitor-based power management method according to claim 2, wherein a charging unit charges the supercapacitor, and comprises:
when the logistics equipment waits for receiving or delivering goods, the charging unit charges the super capacitor, and the super capacitor charges the battery after charging is completed.
4. The method for power management based on battery and super capacitor as claimed in any one of claims 1-3, wherein if the super capacitor is not charged, using battery to supply power for logistics equipment, comprises:
and detecting the residual electric quantity of the super capacitor, and if the residual electric quantity of the super capacitor is smaller than the electric quantity threshold value, using the battery to supply power for the logistics equipment.
5. The battery and supercapacitor based power management method according to any one of claims 1 to 3, wherein the charging unit charges the supercapacitor each time the logistics apparatus waits for receiving or delivering goods.
6. A power management system based on a battery and a super capacitor, comprising: the system comprises a power supply management unit, a battery, a super capacitor and a charging unit;
the power management unit of the logistics equipment is used for setting the super capacitor as a main power supply;
the charging unit is used for: when the logistics equipment waits for receiving or delivering goods, the super capacitor is charged;
and after waiting for the end, using a main power supply super capacitor to supply power to the logistics equipment, and using a battery to supply power to the logistics equipment if the super capacitor is not charged after running for a preset time.
7. The battery and supercapacitor-based power management system according to claim 6, wherein the charging unit is configured to:
the charging unit adopts the mode of charging in segments to charge the super capacitor, and comprises: pulse charging, constant current charging, constant voltage charging, and restart charging.
8. The battery and supercapacitor based power management system according to claim 7, wherein the charging unit is configured to:
when the logistics equipment waits for receiving or delivering goods, the charging unit charges the super capacitor, and the super capacitor charges the battery after charging is completed.
9. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 5.
10. A logistics apparatus comprising the battery and supercapacitor based power management system of any one of claims 6 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210180436.8A CN114530920A (en) | 2022-02-25 | 2022-02-25 | Power management method and system based on battery and super capacitor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210180436.8A CN114530920A (en) | 2022-02-25 | 2022-02-25 | Power management method and system based on battery and super capacitor |
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| CN114530920A true CN114530920A (en) | 2022-05-24 |
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| CN202210180436.8A Pending CN114530920A (en) | 2022-02-25 | 2022-02-25 | Power management method and system based on battery and super capacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117141263A (en) * | 2023-11-01 | 2023-12-01 | 宁波舜宇贝尔机器人有限公司 | AGV trolley charging control method, AGV trolley charging control system, intelligent terminal and storage medium |
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2022
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| CN106026334A (en) * | 2016-07-27 | 2016-10-12 | 西安科技大学 | Supercapacitor three-stage charging circuit and supercapacitor quick charging method thereof |
| CN207504600U (en) * | 2017-10-18 | 2018-06-15 | 宁波舜宇贝尔自动化有限公司 | A kind of AGV energy management systems |
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| CN117141263A (en) * | 2023-11-01 | 2023-12-01 | 宁波舜宇贝尔机器人有限公司 | AGV trolley charging control method, AGV trolley charging control system, intelligent terminal and storage medium |
| CN117141263B (en) * | 2023-11-01 | 2024-01-16 | 宁波舜宇贝尔机器人有限公司 | AGV trolley charging control method, AGV trolley charging control system, intelligent terminal and storage medium |
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