CN215300229U - Dual-power voltage-regulating coupling control system for hydrogen fuel cell - Google Patents
Dual-power voltage-regulating coupling control system for hydrogen fuel cell Download PDFInfo
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- CN215300229U CN215300229U CN202121594355.XU CN202121594355U CN215300229U CN 215300229 U CN215300229 U CN 215300229U CN 202121594355 U CN202121594355 U CN 202121594355U CN 215300229 U CN215300229 U CN 215300229U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/10—Applications of fuel cells in buildings
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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
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The utility model relates to a hydrogen is dual supply pressure regulating coupling control system for fuel cell, include: the device comprises a first power input module, a second power input module, a first voltage and current acquisition module, a second voltage and current acquisition module, a controller and a dual-power coupling output module; the controller controls the dual-power-supply coupling output module to output to a rear-end load according to the first voltage and current information and the second voltage and current information. The output mode is controlled by detecting the first voltage and current information and the second voltage and current information, when the first power input module is adopted for supplying power, the battery exceeding the load demand part is charged for the battery of the second power supply, energy waste and load overheating are avoided, and energy management is performed.
Description
Technical Field
The utility model relates to a power supply control field, concretely relates to hydrogen is dual supply pressure regulating coupling control system for fuel cell.
Background
The existing automobiles have various power supply energy sources, and the types of automobiles adopting hybrid energy sources are also various. However, in the current electric vehicle powered by the hydrogen fuel cell and the lithium battery, the power supply rule adopts a single power supply mode, and the optimal state of the hydrogen fuel cell operation is constant power output, so when the hydrogen fuel cell is switched to supply power, the load demand is easily exceeded, and the situations of energy waste, load overheating and the like occur.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hydrogen is dual supply pressure regulating coupling control system for fuel cell to realize the purpose of the adaptability power supply of two kinds of power.
In order to solve the technical problem, the utility model provides a hydrogen fuel cell is with dual supply pressure regulating coupling control system, include: the device comprises a first power input module, a second power input module, a first voltage and current acquisition module, a second voltage and current acquisition module, a controller and a dual-power parallel coupling output module;
the first power input module and the second power input module are electrically connected with the dual-power output module after being coupled in parallel;
the first voltage and current acquisition module is connected to the output end of the first power input module in parallel and is suitable for acquiring first voltage and current information of the first power input module;
the second voltage and current acquisition module is connected to the output end of the second power input module in parallel and is suitable for acquiring second voltage and current information of the second power input module;
the controller controls the dual-power parallel coupling output module to output to a rear-end load according to first power information acquired by the first voltage and current information and second power information acquired by the second voltage and current information.
Further, the first power input module is a hydrogen fuel cell power input module.
Further, the second power input module is a power lithium battery input module.
Further, the controller is adapted to control the first power input module to supply power when the received second power information is smaller than a preset value.
Further, the dual-power-supply voltage-regulating coupling control system for the hydrogen fuel cell further comprises a BMS system, wherein the controller is suitable for controlling the first power supply input module to output the surplus electric quantity beyond the electric quantity required by the load to the BMS system when the electric quantity indicated by the received first power information is larger than the electric quantity required by the load;
the BMS system is adapted to charge the powered lithium battery.
Further, the controller is adapted to control the first power input module and the second power input module to simultaneously supply power to the dual power output module when the received electric quantity represented by the first power information is smaller than the electric quantity required by the load.
The beneficial effects of the utility model are that, the utility model provides a hydrogen fuel cell includes with dual supply pressure regulating coupling control system: the device comprises a first power input module, a second power input module, a first voltage and current acquisition module, a second voltage and current acquisition module, a controller and a dual-power coupling output module; the first power input module and the second power input module are electrically connected with the dual-power output module after being connected in parallel; the first voltage and current acquisition module is connected to the output end of the first power input module in parallel and is suitable for acquiring first voltage and current information of the first power input module; the second voltage and current acquisition module is connected to the output end of the second power input module in parallel and is suitable for acquiring second voltage and current information of the second power input module; the controller controls the dual-power-supply coupling output module to output to a rear-end load according to first power information acquired by the first voltage and current information and second power information acquired by the second voltage and current information. The output mode is controlled by detecting the first electric quantity information and the second electric quantity information, when the first power input module is adopted for supplying power, the part exceeding the load demand is charged for the second power supply, and energy waste and load overheating are avoided.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a system schematic block diagram of a dual power supply voltage regulation coupling control system for a hydrogen fuel cell provided by the present invention.
Fig. 2 is a flowchart of a dual power supply control method provided by the present invention.
Fig. 3 is a partial schematic block diagram of an electronic device provided by the present invention.
Fig. 4 is a front view of a dual power voltage-regulating coupling control system for a hydrogen fuel cell provided by the present invention.
Fig. 5 is a cross-sectional view of a dual power voltage-regulating coupling control system for a hydrogen fuel cell provided by the present invention.
Fig. 6 is a side view of a dual power voltage regulation coupling control system for a hydrogen fuel cell provided by the present invention.
In the figure: 110-a housing; 120-hydrogen fuel cell power interface; 130-lithium battery charging and power supply interface; 140-cooling water channels; 150-a boost inductor; 160-silicon carbide power tube; 170-; 180-coupled output interface.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
Example 1
As shown in fig. 1, the present embodiment 1 provides a dual power supply voltage regulation coupling control system for a hydrogen fuel cell. A dual power supply voltage regulation coupling control system for a hydrogen fuel cell comprises: the device comprises a first power input module, a second power input module, a first voltage and current acquisition module, a second voltage and current acquisition module, a controller and a dual-power parallel coupling output module; the first power input module and the second power input module are electrically connected with the dual-power output module after being coupled in parallel; the first voltage and current acquisition module is connected to the output end of the first power input module in parallel and is suitable for acquiring first voltage and current information of the first power input module; the second voltage and current acquisition module is connected to the output end of the second power input module in parallel and is suitable for acquiring second voltage and current information of the second power input module; the controller controls the dual-power parallel coupling output module to output to a rear-end load according to first power information acquired by the first voltage and current information and second power information acquired by the second voltage and current information.
And the second power supply input module is a power lithium battery input module. The first power input module is a hydrogen fuel cell power input module. The first power input module comprises but is not limited to a power input circuit of the hydrogen fuel cell and a DC/DC transformation circuit, the power input circuit of the hydrogen fuel cell is connected with the dual-power parallel coupling output module through the DC/DC transformation circuit, the input voltage of the hydrogen fuel cell is converted into 550/750V output, and the specification of the hydrogen fuel cell is DC 20V-550V. The second power input module comprises but is not limited to a power lithium battery input circuit and a DC/DC voltage transformation circuit, the input circuit of the power lithium battery is electrically connected with the dual-power parallel coupling output module through the DC/DC voltage transformation circuit, the input voltage of the lithium battery is converted into 550/750V to be output, and the specification of the power lithium battery is 50-550V.
In this embodiment, the controller is adapted to control the first power input module to supply power when the received second power information is smaller than a preset value. Specifically, when the dual-power voltage regulation coupling control system for the hydrogen fuel cell is started, second voltage and current information of the power lithium cell is detected, second power information is acquired through the second voltage and current information to judge the electric quantity of the current lithium cell, and when the electric quantity is smaller than a preset value, the hydrogen fuel cell is controlled to supply power, wherein the preset value is voltage information corresponding to the electric quantity of the power lithium cell, for example, the preset electric quantity is: the lower limit 45 and the upper limit 90%. When the electric quantity value is 45%, the first power supply is started, and when the electric quantity value is 90%, the first power supply is stopped.
In this embodiment, the dual power supply voltage-regulating coupling control system for the hydrogen fuel cell further comprises a BMS system, and the controller is adapted to control the first power input module to output an excessive power exceeding a power required by the load to the BMS system when the power indicated by the received first power information is greater than the power required by the load; the BMS system is adapted to charge the powered lithium battery. The following may be taken: the electric energy input to the dual-power coupling output module by the hydrogen fuel cell power supply input circuit is shunted, one path is equal to the load using requirement, the other path is connected to the BMS system, and the BMS system is a vehicle-mounted self-contained power management system. The power lithium battery is charged through the BMS system, so that the energy waste of the hydrogen fuel battery is avoided on the one hand, and the heating of the load is prevented on the other hand.
In this embodiment, the controller is adapted to control the first power input module and the second power input module to simultaneously supply power to the dual power output module when the received power indicated by the first power information is less than the power required by the load. When the load is suddenly loaded or in a high-load mode, the use requirement of the load is met by adopting a mode of coupling parallel sources for supplying power simultaneously.
In this embodiment, the controller has 3 paths of CAN communication interfaces and one path of RS485 communication, and needs to provide corresponding error signal codes to upload to the ECU of the entire vehicle, and needs to obtain signals related to the motor or the load from the ECU to adjust power output and management in real time. Wherein, ECU is whole car energy control system, promptly, be used for controlling other loads such as acceleration and the speed reduction of driving motor, driving motor is equal to the load in this application, when the motor accelerates, the dual supply parallel coupling output that need use when the single power supply can not satisfy the load demand carries out the energy consumption and mends, when slowing down, need reduce power output, the output of the first power input module of adaptability adjustment and second power input module this moment, in order to satisfy the motor in the effect of accelerating and slowing down, for example: during acceleration, the load energy consumption is increased, and the electric quantity of the hydrogen fuel cell shunt BMS system is reduced or cut off; during deceleration, load energy consumption is reduced, and the electric quantity of the shunt hydrogen fuel cell connected to the BMS system is improved.
Example 2
Referring to fig. 2, the present embodiment provides a dual power supply control method. The output mode is controlled by detecting the first voltage and current information and the second voltage and current information, when the second power input module is used for supplying power, the first power supply stops working, the system aging or performance reduction and energy source complementation caused by long-time operation of the hydrogen fuel cell are avoided, the vehicle operation mileage is improved, and the energy-saving effect is achieved.
Specifically, the dual power supply control method comprises the following steps:
s110: first voltage and current information of a first power input module is obtained.
Specifically, the first voltage information and the current information are collected by a first voltage and current collecting module.
S120: and acquiring second voltage and current information of the second power input module.
Specifically, the second voltage information and the current information are collected by a second voltage and current collecting module.
S130: and controlling a dual-power parallel coupling output module to supply power according to first power information acquired according to the first voltage and current information and second power information acquired according to the second voltage and current information.
Specifically, step S130 includes:
s131: and when the second power information is smaller than the preset value, controlling the first power supply to supply power to the load.
Specifically, when the dual-power-supply voltage-regulating coupling control system for the hydrogen fuel cell is started, second voltage information and current information of the power lithium cell are detected, the current electric quantity of the lithium cell is judged through second power information obtained through the second voltage information and the current information, and when the electric quantity is smaller than a preset value, the hydrogen fuel cell is controlled to supply power, wherein the preset value is voltage information corresponding to the electric quantity of the power lithium cell, and for example, the preset electric quantity is 45%; and when the electric quantity is greater than a preset value, controlling the hydrogen fuel cell to stop supplying power, wherein the preset value is voltage information corresponding to the electric quantity of the power lithium battery, and for example, the preset electric quantity is 90%.
In this embodiment, when the second power information is smaller than the preset value, after the controlling the first power source to supply power, the step S130 further includes:
s131: and when the electric quantity represented by the first power information is larger than the electric quantity required by the load, controlling the first power input module to output redundant electric quantity to the BMS system to supply power to the lithium battery for charging.
Specifically, the dual-power-supply voltage-regulating coupling control system for the hydrogen fuel cell further comprises a BMS system, wherein the controller is suitable for controlling the dual-power-supply coupling output to output the electric quantity exceeding the electric quantity required by the load to the BMS system when the electric quantity represented by the received first electric quantity information is larger than the electric quantity required by the load; the following may be taken: the electric quantity input to the dual-power coupling output module by the power input circuit of the hydrogen fuel cell is shunted, one path is equal to the use requirement of a load, the other path is connected to a BMS system, and the BMS system is a vehicle-mounted self-contained power management system. The power lithium battery is charged through the BMS system, so that the energy waste of the hydrogen fuel battery is avoided on the one hand, and the heating of the load is prevented on the other hand.
S132: the second power source is charged through the BMS system.
In this embodiment, after controlling the second power supply to supply power when the first power information is smaller than the load value, step S130 further includes:
s133: and when the electric quantity represented by the first power information is less than the electric quantity required by the load, controlling the first power supply and the second power supply to simultaneously supply power to the load.
Specifically, the controller is adapted to control the first power input module and the second power input module to simultaneously supply power to the dual power output module when the received first power information indicates that the power amount is less than the power amount required by the load. When the load suddenly accelerates or is in a high-power mode, the use requirement of the load is met by adopting a coupling parallel connection simultaneous power supply mode.
Example 3
The present embodiment provides a computer-readable storage medium, in which one or more instructions are stored, and when executed by a processor, the one or more instructions implement the dual power supply control method provided in embodiment 2.
According to the dual-power-supply control method, the output mode is controlled by detecting the first power information and the second power information, and when the first power input module is adopted for supplying power, the part exceeding the load demand is charged for the second power supply, so that energy waste and load overheating are avoided.
Example 4
Referring to fig. 3, an embodiment of the present invention further provides an electronic device, including: a memory 502 and a processor 501; the memory 502 has at least one program instruction stored therein; the processor 501 loads and executes the at least one program instruction to implement the dual power supply control method according to embodiment 2.
The memory 502 and the processor 501 are coupled in a bus that may include any number of interconnecting buses and bridges that couple one or more of the various circuits of the processor 501 and the memory 502 together. The bus may also connect various other circuits such as peripherals, cooling water management systems, and thermal management, etc., which are well known in the art, and therefore, will not be described any further herein. A bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor 501 is transmitted by wire or wirelessly, and further, the receiver receives the data and transmits the data to the processor 501.
The processor 501 is responsible for managing the bus and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And memory 502 may be used to store data used by processor 501 in performing operations.
Example 5
Referring to fig. 4-6, the present embodiment further provides a dual power voltage regulation coupling control system for a hydrogen fuel cell, which includes a housing 110, a hydrogen fuel cell interface 120, a power lithium battery charging/discharging power line interface 130, a cooling water channel 140, a boost inductor 150, a silicon carbide power tube 160, a 485/can interface 170, and a coupling output interface 180. The arrangement relationship of the components is shown in fig. 4-6, and the embodiment is not described.
To sum up, the utility model provides a hydrogen fuel cell includes with dual supply voltage regulation coupling control system: the device comprises a first power input module, a second power input module, a first voltage and current acquisition module, a second voltage and current acquisition module, a controller and a dual-power parallel coupling output module; the first power input module and the second power input module are electrically connected with the dual-power output module after being connected in parallel; the first voltage and current acquisition module is connected to the output end of the first power input module in parallel and is suitable for acquiring first voltage and current information of the first power input module; the second voltage and current acquisition module is connected to the output end of the second power input module in parallel and is suitable for acquiring second voltage and current information of the second power input module; the controller controls the dual-power-supply coupling output module to output to a rear-end load according to first power information acquired by the first voltage and current information and second power information acquired by the second voltage and current information. The output mode is controlled by detecting the first electric quantity information and the second electric quantity information, when the first power input module is adopted for supplying power, the part exceeding the load demand is charged for the second power supply, and energy waste and load overheating are avoided.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. A dual power supply voltage regulation coupling control system for a hydrogen fuel cell is characterized by comprising: the device comprises a first power input module, a second power input module, a first voltage and current acquisition module, a second voltage and current acquisition module, a controller and a dual-power coupling output module;
the first power input module and the second power input module are electrically connected with the dual-power output module after being connected in parallel;
the first voltage and current acquisition module is connected to the output end of the first power input module in parallel and is suitable for acquiring first voltage and current information of the first power input module;
the second voltage and current acquisition module is connected to the output end of the second power input module in parallel and is suitable for acquiring second voltage and current information of the second power input module;
the controller controls the dual-power-supply coupling output module to output to a rear-end load according to first power information acquired by the first voltage and current information and second power information acquired by the second voltage and current information.
2. The dual power supply voltage regulation coupling control system for the hydrogen fuel cell of claim 1, wherein the first power input module is a hydrogen fuel cell power input module.
3. The dual power supply voltage regulation coupling control system for the hydrogen fuel cell of claim 2, wherein the second power supply input module is a power lithium battery input module.
4. The dual power supply voltage regulation coupling control system for the hydrogen fuel cell as claimed in claim 3, wherein the controller is adapted to control the first power supply input module to supply power when the received second power information is smaller than a preset value.
5. The dual power supply voltage-regulating coupling control system for the hydrogen fuel cell of claim 3, wherein the dual power supply voltage-regulating coupling control system for the hydrogen fuel cell further comprises a BMS system, and the controller is adapted to control the first power supply input module to output the excess power exceeding the power required by the load to the BMS system when the power indicated by the received first power information is greater than the power required by the load;
the BMS system is adapted to charge the powered lithium battery.
6. The dual power supply voltage regulation coupling control system for the hydrogen fuel cell as claimed in claim 3, wherein the controller is adapted to control the first power input module and the second power input module to simultaneously supply power to the dual power supply output module when the received first power information indicates that the power amount is less than the power amount required by the load.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121594355.XU CN215300229U (en) | 2021-07-13 | 2021-07-13 | Dual-power voltage-regulating coupling control system for hydrogen fuel cell |
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| CN202121594355.XU CN215300229U (en) | 2021-07-13 | 2021-07-13 | Dual-power voltage-regulating coupling control system for hydrogen fuel cell |
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| CN215300229U true CN215300229U (en) | 2021-12-24 |
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