CN220865259U - Multifunctional charging system based on fuel cell - Google Patents
Multifunctional charging system based on fuel cell Download PDFInfo
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- CN220865259U CN220865259U CN202322722248.6U CN202322722248U CN220865259U CN 220865259 U CN220865259 U CN 220865259U CN 202322722248 U CN202322722248 U CN 202322722248U CN 220865259 U CN220865259 U CN 220865259U
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- 239000000446 fuel Substances 0.000 title claims abstract description 106
- 238000004146 energy storage Methods 0.000 claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 76
- 229910052739 hydrogen Inorganic materials 0.000 claims description 76
- 239000001257 hydrogen Substances 0.000 claims description 76
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 7
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 150000002736 metal compounds Chemical class 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 abstract 6
- 210000000352 storage cell Anatomy 0.000 abstract 2
- 238000011217 control strategy Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of fuel cells, and particularly relates to a multifunctional charging system based on a fuel cell, which comprises a fuel cell system, an energy storage cell, a low-voltage storage battery, a high-voltage distribution module, a high-voltage conversion low-voltage module and a charging module, wherein the fuel cell system is connected with the energy storage cell through a high-voltage loop, the fuel cell system is connected with the high-voltage distribution module through a high-voltage loop, the high-voltage distribution module is connected with the charging module through a high-voltage loop, the high-voltage distribution module is connected with the high-voltage conversion low-voltage module through a high-voltage loop, and the high-voltage conversion low-voltage module is connected with the low-voltage storage battery through a low-voltage loop. The high-voltage distribution module performs high-voltage centralized control, and shares the same pre-charging power-on loop with the high-voltage power-on loops of the fuel cell system, the energy storage battery, the charging module and the high-voltage to low-voltage module, so that the high-voltage control of high-voltage electric equipment is realized, the high-voltage complexity of each equipment is reduced, and the control complexity and cost are reduced.
Description
Technical Field
The utility model belongs to the technical field of fuel cells, and particularly relates to a multifunctional charging system based on a fuel cell.
Background
At present, new energy automobiles are gradually replacing traditional fuel automobiles, and accordingly the requirement for charging piles is correspondingly increased. However, the current power supply capacity of the power grid is limited, the peak power consumption is encountered, the open-gate limit is also common, the charging pile which needs the power grid to supply power is undoubtedly a bottleneck, and a new energy source is urgently needed to supply power.
The hydrogen energy is called as the final clean energy because the discharged product is water, electricity is produced, the environment is not polluted, and a large amount of hydrogen energy exists in the nature. The hydrogen energy industry chain mainly comprises three links of hydrogen production, hydrogen storage and hydrogen utilization. The hydrogen-using links at present mainly comprise hydrogen fuel cells and hydrogen engines, and the main application scenes are road traffic, rail traffic, ships and aerospace. The hydrogen is used for generating electricity to charge the vehicle, so that the charging and power supply requirements of the power grid capacity insufficient area can be effectively met.
Considering the problems faced by the charging pile and the power utilization system of the new energy automobile comprehensively, the off-grid hydrogen fuel cell vehicle charging system which does not depend on a power grid, is low in control complexity and low in cost is urgently needed, and the new energy automobile is charged and powered by the hydrogen fuel cell, so that the limitation of the power grid is eliminated.
Disclosure of utility model
In order to solve the technical problems, the utility model provides a multifunctional charging system based on a fuel cell, which has low complexity and low cost, and the technical scheme is as follows:
The utility model provides a multi-functional charging system based on fuel cell, includes fuel cell system, energy storage battery, low voltage battery, high voltage distribution module, high voltage changes low voltage module and the module that charges, fuel cell system passes through high voltage loop with energy storage battery and is connected, and fuel cell system passes through high voltage loop with high voltage distribution module and is connected, and high voltage distribution module passes through high voltage loop with the module that charges and is connected, and high voltage distribution module passes through high voltage loop with high voltage to change low voltage module and is connected, and high voltage changes low voltage module and low voltage battery and passes through low voltage loop.
Further, the fuel cell system includes 2 hydrogen fuel cell systems.
Further, the multifunctional charging system based on the fuel cell further comprises a main control unit, and the main control unit is connected with the fuel cell system, the energy storage battery, the low-voltage storage battery, the high-voltage power distribution module and the charging module through control loops respectively.
Further, the fuel cell system also comprises a solid hydrogen storage module, wherein the solid hydrogen storage module is connected with the fuel cell system through a hydrogen pipeline.
Further, the solid-state hydrogen storage module is 2 metal compound hydrogen storage devices.
Further, the multifunctional charging system based on the fuel cell further comprises a solid-state hydrogen storage control unit, the solid-state hydrogen storage module is connected with the solid-state hydrogen storage control unit through a control loop, and the main control unit is connected with the solid-state hydrogen storage control unit through the control loop.
Further, the low-voltage storage battery is connected with the fuel cell system, the energy storage battery, the high-voltage power distribution module, the high-voltage to low-voltage module, the charging module, the main control unit, the solid-state hydrogen storage module and the solid-state hydrogen storage control unit through a low-voltage loop.
Further, the multifunctional charging system based on the fuel cell further comprises a man-machine interface, and the man-machine interface is connected with the charging module through a control loop.
Further, the high-voltage power distribution system further comprises an inversion module, wherein the inversion module is connected with the high-voltage power distribution module through a high-voltage loop, connected with the main control unit through a control loop and connected with the low-voltage storage battery through a low-voltage loop.
Further, an electronic thermostat is arranged at the water outlet of the fuel cell system, and the fuel cell system is connected with the solid-state hydrogen storage module through a heat dissipation pipeline.
Compared with the prior art, the utility model has the following beneficial effects:
(1) The high-voltage distribution module performs high-voltage centralized control, and shares the same pre-charging power-on loop with the high-voltage power-on loops of the fuel cell system, the energy storage battery, the charging module and the high-voltage to low-voltage module, so that the high-voltage control of high-voltage electric equipment is realized, the high-voltage complexity of each equipment is reduced, and the control complexity and cost are reduced.
(2) The multifunctional charging system based on the fuel cell can charge the vehicle through the charging module, the multifunctional charging system based on the fuel cell can also supply power for an alternating current load through the inversion module, and the energy storage battery supplies high-voltage power for the fuel cell system and the high-voltage to low-voltage module on one hand and stores energy on the other hand, so that the multifunctional charging system based on the fuel cell has two functions of charging and power supply, determines which mode to use to work according to the selection of a user, and improves the utilization rate of equipment.
Drawings
Fig. 1 is a schematic diagram of a fuel cell-based multifunctional charging system according to the present utility model;
FIG. 2 is a flow chart of a charge and power control strategy of the present utility model;
Fig. 3 is a flowchart of the fuel cell system heat generation energy recovery control strategy of the present utility model.
Detailed Description
The technical solutions of the present utility model will be clearly described below with reference to the accompanying drawings, and it is obvious that the described embodiments are not all embodiments of the present utility model, and all other embodiments obtained by a person skilled in the art without making any inventive effort are within the scope of protection of the present utility model.
As shown in fig. 1, the utility model provides a multifunctional charging system based on a fuel cell, which comprises a fuel cell system, an energy storage battery, a low-voltage storage battery, a high-voltage power distribution module, a high-voltage to low-voltage power distribution module, a charging module and a human-computer interface, wherein the fuel cell system is 2 hydrogen fuel cell systems of 110KW, the fuel cell system 1 and the fuel cell system 2 are connected with the energy storage battery through a high-voltage loop, the fuel cell system 1 and the fuel cell system 2 are connected with the high-voltage power distribution module through a high-voltage loop, the high-voltage power distribution module is connected with the charging module through a high-voltage loop, and the high-voltage power distribution module is connected with the high-voltage to low-voltage power distribution module through a high-voltage loop; the high-voltage power distribution module is mainly used for high-voltage pre-charging and high-voltage distribution; the high-voltage to low-voltage module is connected with the low-voltage storage battery through a low-voltage loop, the human-computer interface is connected with the charging module through a control loop, and the human-computer interface is an interaction device for a user to request charging and power supply. The energy storage battery provides high-voltage power supply for the fuel cell system 1, the fuel cell system 2 and the high-voltage to low-voltage module, and stores energy through the fuel cell system 1 and the fuel cell system 2. The high-voltage distribution module performs high-voltage centralized control, and the high-voltage power-on loops of the fuel cell system 1, the fuel cell system 2, the energy storage battery, the charging module and the high-voltage to low-voltage module are used for the same pre-charging power-on loop, so that the control complexity and cost are reduced.
The low-voltage storage battery is connected with the fuel cell system 1, the fuel cell system 2, the energy storage battery, the high-voltage distribution module, the high-voltage to low-voltage module and the charging module through a low-voltage loop. The high-voltage to low-voltage module supplies power to low-voltage electric equipment and charges a low-voltage storage battery; the low-voltage storage battery provides starting and working power for the fuel cell system 1, the fuel cell system 2, the energy storage battery, the high-voltage distribution module, the high-voltage to low-voltage module and the charging module. When the high voltage is electrified, the high voltage-to-low voltage module converts the high voltage into low voltage to provide 24V low voltage for other modules, and simultaneously charges the low voltage storage battery.
The fuel cell system 1 and the fuel cell system 2 are subjected to chemical reaction by providing hydrogen through a hydrogen pipeline by a solid-state hydrogen storage module, wherein the solid-state hydrogen storage module is 2 metal compound hydrogen storage devices of 16KG, and the solid-state hydrogen storage module 1 and the solid-state hydrogen storage module 2 are connected with a solid-state hydrogen storage control unit through a control loop; the solid-state hydrogen storage control unit is a thermal management system for controlling the solid-state hydrogen storage modules 1 and 2 so as to ensure sufficient hydrogen release capacity of the solid-state hydrogen storage modules 1 and 2, receives a command of the main control unit, and sends the state of the solid-state hydrogen storage control unit to the main control unit in real time.
The main control unit is connected with the fuel cell system 1, the fuel cell system 2, the energy storage battery, the low-voltage storage battery, the solid-state hydrogen storage control unit, the high-voltage power distribution module and the charging module through control loops respectively. The low-voltage storage battery is connected with the solid-state hydrogen storage module 1, the solid-state hydrogen storage module 2, the solid-state hydrogen storage control unit and the main control unit through a low-voltage loop, and the low-voltage storage battery provides starting and working power supplies for the solid-state hydrogen storage module 1, the solid-state hydrogen storage module 2, the solid-state hydrogen storage control unit and the main control unit. After receiving the charging and power supply demands sent by the user from the human-computer interface, the main control unit performs energy scheduling in real time according to the power demands requested by the current user, and decides whether to supply power to the energy storage battery or to generate power to the fuel cell system 1 and the fuel cell system 2 or to supply power to the energy storage battery, the fuel cell system 1 and the fuel cell system 2 simultaneously according to a charging and power supply control strategy set by the human-computer interface. Before starting the fuel cell system, the main control unit sends a hydrogen supply request to the solid-state hydrogen storage control unit, and the solid-state hydrogen storage control unit receives the hydrogen supply request and selects different modes to heat and release hydrogen for the solid-state hydrogen storage module according to the situation of the main control unit. As shown in fig. 2, the charging power supply control strategy is: the man-machine interface defaults to a charging mode, and when a user has a charging requirement, after inserting a gun, the user can charge by scanning the code; as shown in fig. 1, the multifunctional charging system based on a fuel cell in this embodiment further includes an inversion module, where the inversion module is connected with the high-voltage distribution module through a high-voltage loop, connected with the main control unit through a control loop, and connected with the low-voltage storage battery through a low-voltage loop, and when power needs to be supplied, a user logs in to a power supply mode interface after passing through password authentication, inputs request power, and presses a start power supply button, so that power can be supplied to an external ac load through the inversion module.
Therefore, the multifunctional charging system based on the fuel cell of the embodiment has two functions of charging and power supply, determines which mode to use according to the selection of a user, and improves the utilization rate of equipment; meanwhile, the system has the functions of automatic identification and power supply when low voltage and high voltage are low, when the multifunctional charging system based on the fuel cell has no charging request, after the normal power-off condition is met, the equipment is powered off sequentially, the main control unit is in a dormant state, the main control unit wakes up every 5 minutes to detect the residual electric quantity of the current low-voltage storage battery and the residual electric quantity of the energy storage battery, when the residual electric quantity of the low-voltage storage battery or the residual electric quantity of the energy storage battery is low, the system is automatically powered on at high voltage, the fuel cell system 1 and the fuel cell system 2 are started to supply power to the low-voltage storage battery and the energy storage battery, and after the power supply stop threshold is reached, the power supply is ended. The situation that the normal start-up is impossible after the high-low voltage power supply is exhausted after long-term use is avoided.
In this embodiment, an electronic thermostat is additionally installed in the water outlet channel of the fuel cell system stack, and the default water outlet channel of the fuel cell system stack is mainly changed to provide a heat source for the solid hydrogen storage module through the plate of the solid hydrogen storage module, and then returns to the water outlet channel of the fuel cell system stack. However, the solid-state hydrogen storage module has limited heat absorption capacity, and if all heat of the cell stack outlet is supplied to the solid-state hydrogen storage module, insufficient heat dissipation of the fuel cell system is caused, and the cell stack of the fuel cell system alarms due to overhigh water temperature at the cell stack inlet; meanwhile, the fuel cell system side can rotate the fan at a high speed to reduce a small amount of water temperature and increase power consumption because the water temperature at the inlet of the electric pile is too high. As shown in fig. 3, the opening of the electronic thermostat is controlled by PID, the temperature difference of the outlet waterway at the heat exchange side of the solid-state hydrogen storage module plate is set to be the target temperature difference, the difference of the outlet waterway temperature and the waterway at the stack inlet of the fuel cell system is set to be the actual temperature difference, and the electronic thermostat is set to be the control object, so that the heat requirement of the solid-state hydrogen storage module can be met, the temperature of the waterway inlet of the stack of the fuel cell system can be ensured to be within the set temperature, and the power consumption of the cooling fan can be reduced as high as possible. Therefore, the heating values of the fuel cell system 1 and the fuel cell system 2 can be used for energy recovery, the opening degree of a three-way valve of a water channel of a fuel cell system pile outlet is controlled by the ratio of the water temperature of the pile inlet of the fuel cell system to the outlet temperature of the solid hydrogen storage module, and the three-way valve is an electronic thermostat so as to control the water channel distribution of the pile outlet water channel to the solid hydrogen storage module and the radiator; the calorific value of the fuel cell system is provided for the solid-state hydrogen storage module to absorb heat and release hydrogen as much as possible, so that the hydrogen release requirement of the solid-state hydrogen storage module is met, and meanwhile, the heat dissipation power consumption of the fuel cell system is reduced.
The technical characteristics form the optimal embodiment of the utility model, have stronger adaptability and optimal implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the needs of different situations.
Finally, it should be noted that the above description is only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and that the simple modification and equivalent substitution of the technical solution of the present utility model can be made by those skilled in the art without departing from the spirit and scope of the technical solution of the present utility model.
Claims (10)
1. A fuel cell-based multifunctional charging system, characterized by: the fuel cell system is connected with the energy storage battery through a high-voltage loop, the fuel cell system is connected with the high-voltage power distribution module through a high-voltage loop, the high-voltage power distribution module is connected with the charging module through a high-voltage loop, the high-voltage power distribution module is connected with the high-voltage power conversion module through a high-voltage loop, and the high-voltage power conversion module is connected with the low-voltage power storage battery through a low-voltage loop.
2. The fuel cell-based multifunctional charging system according to claim 1, wherein: the fuel cell system includes 2 hydrogen fuel cell systems.
3. The fuel cell-based multifunctional charging system according to claim 1, wherein: the multifunctional charging system based on the fuel cell further comprises a main control unit, and the main control unit is connected with the fuel cell system, the energy storage battery, the low-voltage storage battery, the high-voltage power distribution module and the charging module through control loops respectively.
4. A fuel cell based multi-function charging system according to claim 3, wherein: the fuel cell system further comprises a solid-state hydrogen storage module, wherein the solid-state hydrogen storage module is connected with the fuel cell system through a hydrogen pipeline.
5. The fuel cell-based multifunctional charging system according to claim 4, wherein: the solid-state hydrogen storage module is provided with 2 metal compound hydrogen storage devices.
6. The fuel cell-based multifunctional charging system according to claim 5, wherein: the multifunctional charging system based on the fuel cell further comprises a solid-state hydrogen storage control unit, wherein the solid-state hydrogen storage module is connected with the solid-state hydrogen storage control unit through a control loop, and the main control unit is connected with the solid-state hydrogen storage control unit through the control loop.
7. The fuel cell-based multifunctional charging system according to claim 6, wherein: the low-voltage storage battery is connected with the fuel cell system, the energy storage battery, the high-voltage distribution module, the high-voltage to low-voltage module, the charging module, the main control unit, the solid-state hydrogen storage module and the solid-state hydrogen storage control unit through a low-voltage loop.
8. The fuel cell-based multifunctional charging system according to claim 7, wherein: the multifunctional charging system based on the fuel cell further comprises a man-machine interface, and the man-machine interface is connected with the charging module through a control loop.
9. The fuel cell-based multifunctional charging system according to any one of claims 3 to 8, wherein: the high-voltage power distribution system further comprises an inversion module, wherein the inversion module is connected with the high-voltage power distribution module through a high-voltage loop, connected with the main control unit through a control loop and connected with the low-voltage storage battery through a low-voltage loop.
10. The fuel cell-based multifunctional charging system according to any one of claims 4 to 8, wherein: the water outlet of the fuel cell system is provided with an electronic thermostat, and the fuel cell system is connected with the solid hydrogen storage module through a heat dissipation pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322722248.6U CN220865259U (en) | 2023-10-10 | 2023-10-10 | Multifunctional charging system based on fuel cell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322722248.6U CN220865259U (en) | 2023-10-10 | 2023-10-10 | Multifunctional charging system based on fuel cell |
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| CN220865259U true CN220865259U (en) | 2024-04-30 |
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| CN202322722248.6U Active CN220865259U (en) | 2023-10-10 | 2023-10-10 | Multifunctional charging system based on fuel cell |
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