CN112937298A - Hybrid power control method and device and vehicle - Google Patents
Hybrid power control method and device and vehicle Download PDFInfo
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- CN112937298A CN112937298A CN202110361639.2A CN202110361639A CN112937298A CN 112937298 A CN112937298 A CN 112937298A CN 202110361639 A CN202110361639 A CN 202110361639A CN 112937298 A CN112937298 A CN 112937298A
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- 238000000034 method Methods 0.000 title claims abstract description 57
- 239000000446 fuel Substances 0.000 claims abstract description 204
- 230000001276 controlling effect Effects 0.000 claims description 60
- 238000006243 chemical reaction Methods 0.000 claims description 54
- 238000004590 computer program Methods 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 13
- 230000004044 response Effects 0.000 abstract description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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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
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
-
- 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/75—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using propulsion power supplied by both fuel cells and batteries
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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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/40—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for controlling a combination of batteries and fuel cells
-
- 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
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- 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
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Fuel Cell (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a hybrid power control method, a device and a vehicle, wherein the scheme comprises the steps of firstly obtaining the consumed power on a high-voltage bus and the output power of a fuel cell, controlling the output power of the fuel cell to be increased to supply power for a load when the output power of the fuel cell is smaller than the consumed power on the high-voltage bus, namely the output power of the fuel cell is insufficient to supply power for the load, considering that the response speed is slow when the output power of the fuel cell changes, the output power of the fuel cell may not be enough to enable the load to work normally in the process, therefore, the output power of a power battery is also controlled to be combined with the fuel cell to supply power for the load, avoiding the situation that the response speed is slow when the output power of the fuel cell changes, so that the load can not work normally due to the insufficient output power of the fuel cell in the process, the reliability of supplying power to the load is improved.
Description
Technical Field
The invention relates to the field of train power supply, in particular to a hybrid power control method, a hybrid power control device and a vehicle.
Background
Due to the advantages of no pollution, high energy density and the like of the hydrogen fuel cell, the current train generally uses the fuel cell using hydrogen as fuel to supply power to the load connected with the high-voltage bus through the high-voltage bus on the train, when the power required by the load is greater than the power provided by the fuel cell, the output power of the fuel cell needs to be controlled to be increased to supply power to the load, but the response speed for controlling the increase of the output power of the fuel cell is slow, a certain time is needed to adjust the output power of the fuel cell to the power required by the load, in the process, the output power of the fuel cell is not enough to provide the power required by the load, so that the normal operation of the load may be influenced, and the reliability of power supply is low.
Disclosure of Invention
The invention aims to provide a hybrid power control method, a hybrid power control device and a vehicle, which can avoid the situation that the output power of a fuel cell is insufficient to supply power to a load so that the load cannot work normally in the process of slow response speed when the output power of the fuel cell changes, and improve the reliability of supplying power to the load.
In order to solve the above technical problem, the present invention provides a hybrid power control method, including:
acquiring consumed power on a high-voltage bus, wherein the consumed power is the sum of required power of loads connected with the high-voltage bus;
acquiring the output power of the fuel cell;
judging whether the consumed power is larger than the output power of the fuel cell;
if so, controlling the output power of the fuel cell to increase, and controlling the fuel cell to be combined with a power cell to supply power to the load through the high-voltage bus;
and if not, controlling the fuel cell to independently supply power to the load.
Preferably, the fuel cell is connected to the high voltage bus through a DC/DC converter DC/DC conversion module;
controlling the output power of the fuel cell to increase, comprising:
controlling the output current of the DC/DC conversion module to increase.
Preferably, after controlling the fuel cell to supply power to the load alone, the method further includes:
acquiring electric quantity information of the power battery;
judging whether the electric quantity of the power battery is smaller than a preset electric quantity or not based on the electric quantity information of the power battery;
if yes, controlling the fuel cell to charge the power battery;
and if not, controlling the output power of the fuel cell to be reduced.
Preferably, the fuel cell is connected to the high voltage bus through a DC/DC conversion module;
controlling the output power reduction of the fuel cell, comprising:
controlling an output current of the DC/DC conversion module to decrease.
Preferably, before acquiring the consumed power on the high-voltage bus, the method further includes:
controlling the fuel cell to turn on to supply power to the load through the high voltage bus.
Preferably, the front end of the fuel cell is connected with a fuel storage device through a fuel pipeline, and the rear end of the fuel cell is connected with the high-voltage bus through a DC/DC conversion module;
before controlling the fuel cell to be started, the method further comprises the following steps:
controlling the fuel storage device to be started, the fuel pipeline to be conducted and the DC/DC conversion module to be started;
controlling the fuel cell to turn on to power the load via the high voltage bus, comprising:
controlling the fuel cell to turn on to supply power to the load through the DC/DC conversion module and the high-voltage bus.
Preferably, before controlling the fuel storage device to be turned on, the fuel pipeline to be conducted, and the DC/DC conversion module to be turned on, the method further includes:
controlling the power battery to be started;
acquiring the output voltage of the power battery;
controlling the fuel cell to turn on to power the load through the DC/DC conversion module and the high voltage, comprising:
and regulating the voltage output by the fuel cell through the DC/DC conversion module by taking the output voltage of the power cell as the target output voltage of the fuel cell.
Preferably, the method further comprises the following steps:
judging whether the fuel cell can continuously output power;
and if not, controlling the output power of the power battery to supply power to the load through a high-voltage bus.
In order to solve the above technical problem, the present invention also provides a hybrid control apparatus, including:
a memory for storing a computer program;
a processor for implementing the steps of the hybrid control method described above when executing the computer program.
In order to solve the technical problem, the invention further provides a vehicle comprising the hybrid power control device.
The application provides a hybrid power control method, in the scheme, firstly, the consumed power on a high-voltage bus and the output power of a fuel cell are obtained, when the output power of the fuel cell is smaller than the consumed power on the high-voltage bus, namely the output power of the fuel cell is insufficient to supply power to a load, the output power of the fuel cell is controlled to be increased to supply power to the load, and the output power of the fuel cell is controlled to be combined with the fuel cell to supply power to the load in consideration of the slow response speed when the output power of the fuel cell changes, so that the situation that the response speed is slow when the output power of the fuel cell changes, so that the output power of the fuel cell is insufficient to supply power to the load and the load cannot normally work can be avoided in the process, the reliability of supplying power to the load is improved.
The application also provides a hybrid control device and a vehicle, which have the same beneficial effects as the hybrid control method described above.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic flow chart of a hybrid power control method provided by the present invention;
fig. 2 is a block diagram of a hybrid control apparatus according to the present invention.
Detailed Description
The core of the invention is to provide a hybrid power control method, a hybrid power control device and a vehicle, which avoid the situation that the output power of a fuel cell is insufficient to supply power to a load so that the load cannot work normally in the process of slow response speed when the output power of the fuel cell changes, and improve the reliability of supplying power to the load.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic flow chart of a hybrid power control method provided by the present invention, the method including:
s11: acquiring consumed power on a high-voltage bus, wherein the consumed power is the sum of required power of a load connected with the high-voltage bus;
s12: acquiring the output power of the fuel cell;
s13: judging whether the consumed power is larger than the output power of the fuel cell;
s14: if so, controlling the output power of the fuel cell to increase, and controlling the fuel cell to be combined with the power cell to supply power to the load through the high-voltage bus;
s15: and if not, controlling the fuel cell to independently supply power to the load.
Considering that when a fuel cell is used for supplying power to a load connected with a high-voltage bus through the high-voltage bus on a train, if the power required by the load is greater than the output power of the fuel cell, the output power of the fuel cell needs to be controlled to be increased to ensure that the load works normally, but the response speed for controlling the increase of the output power of the fuel cell is slow, a certain time is needed for adjusting the output power of the fuel cell to the power required by the load, and in the process, the output power of the fuel cell is not enough to provide the power required by the load, so that the normal work of the load can be influenced, and the reliability of power supply is low.
In order to solve the above technical problem, the present application is designed to use another battery or power source to provide power to be combined with the fuel cell during the output power requirement variation of the fuel cell, especially when the output power of the fuel cell is insufficient to supply power to the load, so that the sum of the output power is sufficient to provide the power required by the load to the load, so that the load can normally operate.
Based on this, in the scheme, the consumed power on the high-voltage bus and the output power of the fuel cell are firstly obtained, and when the output power of the fuel cell is less than the consumed power on the high-voltage bus, that is, the output power of the fuel cell is insufficient to supply power to the load, the output power of the fuel cell is controlled to be increased to supply power to the load, and the response speed is slow when the output power of the fuel cell changes, in the process, the output power of the fuel cell is possibly insufficient to enable the load to work normally, therefore, the output power of the power battery is also controlled to be combined with the fuel cell to supply power to the load, the slow response speed caused by the change of the output power of the fuel cell is avoided, in the process, the output power of the fuel cell is possibly insufficient to supply power to the load, so that the load cannot work normally, and the reliability of supplying power to the load is improved.
It should be noted that, the power battery in the present application may be, but is not limited to, a rechargeable battery, and when the battery is insufficient, the rechargeable battery may be charged to improve the utilization rate of the power battery. In addition, the power battery in the present application may supply power to only the load connected to the high-voltage bus, and may also supply power to other low-voltage devices, and the present application is not limited to the load connected to the high-voltage bus.
In summary, the hybrid power control method provided by the present application can supply power to the load, and when the output power of the fuel cell is insufficient to supply power to the load during the variation process of the output power of the fuel cell, the power cell and the fuel cell are controlled to output power together, so that the reliability of supplying power to the load can be improved.
On the basis of the above-described embodiment:
as a preferred embodiment, the fuel cell is connected to the high voltage bus through a DC/DC (direct current/direct current converter) conversion module;
controlling an increase in output power of a fuel cell, comprising:
and controlling the output current of the DC/DC conversion module to increase.
Considering that the voltage of the high-voltage bus on the train is a large high-voltage, and the output voltage of the fuel cell generally does not reach the high-voltage required by the high-voltage bus, a DC/DC conversion module is further provided between the fuel cell and the high-voltage bus in the present application for boosting the voltage output by the fuel cell to supply power to the load through the high-voltage bus.
Specifically, when the output power of the fuel cell is controlled to be increased in the present application, in order to ensure that the voltage of the load connected to the high-voltage bus is stable, the output voltage of the DC/DC conversion module is controlled to be unchanged in the present application, so that the output current of the DC/DC conversion module is increased, and the output power of the fuel cell is increased.
It should be noted that, although the output voltage of the DC/DC conversion module may fluctuate somewhat when the output current of the DC/DC conversion module is controlled to increase, the principle when the output power of the fuel cell is controlled to increase is to control the output voltage of the DC/DC conversion module to be constant and only control the output current of the DC/DC conversion module to increase.
In addition, the DC/DC conversion module is a single-phase DC/DC conversion module, so that the voltage on the high-voltage bus can be prevented from being fed back to the fuel cell, and damage to the fuel cell can be avoided.
In summary, the manner of controlling the increase in the output power of the fuel cell by the present application is simple and easy to implement, and the stability of the voltage supplying the load can be ensured.
As a preferred embodiment, after controlling the fuel cell to supply power to the load alone, the method further includes:
acquiring electric quantity information of a power battery;
judging whether the electric quantity of the power battery is smaller than a preset electric quantity or not based on the electric quantity information of the power battery;
if yes, controlling the fuel cell to charge the power battery;
if not, the output power of the fuel cell is controlled to be reduced.
When it is determined that the output power of the fuel cell is not less than the consumed power, that is, the output power of the fuel cell may be greater than the consumed power, there may be a waste of the output power of the fuel cell.
In order to solve the above technical problem, in the present application, after the fuel cell is controlled to supply power to the load alone, that is, when it is determined that the output power of the fuel cell is not less than the consumed power, the electric quantity information of the power cell is also obtained, and if the electric quantity of the power cell is less than the preset electric quantity, the fuel cell is controlled to charge the power cell so as to consume the redundant output power of the fuel cell. It is also considered that the power of the power battery may be sufficient, that is, when the power of the power battery is not less than the preset power, the power battery does not need to be charged, and at this time, in order to avoid the waste of the output power of the fuel battery, the output power of the fuel battery is reduced.
In summary, the mode in the application can avoid the output power waste of the fuel cell, thereby improving the energy utilization rate.
As a preferred embodiment, the fuel cell is connected with the high-voltage bus through a DC/DC conversion module;
controlling the output power reduction of the fuel cell, comprising:
and controlling the output current of the DC/DC conversion module to be reduced.
Considering that the voltage of the high-voltage bus on the train is a large high-voltage, and the output voltage of the fuel cell generally does not reach the high-voltage required by the high-voltage bus, a DC/DC conversion module is further provided between the fuel cell and the high-voltage bus in the present application for boosting the voltage output by the fuel cell to supply power to the load through the high-voltage bus.
Specifically, when the output power of the fuel cell is controlled to be reduced in the present application, in order to ensure that the voltage of the load connected to the high-voltage bus is stable, the output voltage of the DC/DC conversion module is controlled to be unchanged in the present application, so that the output current of the DC/DC conversion module is reduced, and the output power of the fuel cell is further reduced.
Further, it should be noted that, when the output current of the DC/DC conversion module is controlled to be reduced, the output voltage of the DC/DC conversion module may fluctuate somewhat, but when the output power of the fuel cell is controlled to be reduced, the principle is that the output voltage of the DC/DC conversion module is controlled to be constant, and only the output current of the DC/DC conversion module is controlled to be reduced.
In summary, the manner of controlling the reduction of the output power of the fuel cell by the present application is simple and easy to implement, and the stability of the voltage supplying the load can be ensured.
As a preferred embodiment, before acquiring the consumed power on the high-voltage bus, the method further includes:
the fuel cell is controlled to turn on to power the load via the high voltage bus.
The method aims to control the fuel cell to be started and then supply power to the load through the high-voltage bus before the consumed power of the high-voltage bus is obtained, and therefore the reliability of power supply is guaranteed.
As a preferred embodiment, the front end of the fuel cell is connected with the fuel storage device through a fuel pipeline, and the rear end of the fuel cell is connected with the high-voltage bus through a DC/DC conversion module;
before controlling the fuel cell to start, the method further comprises the following steps:
controlling the fuel storage device to be started, the fuel pipeline to be conducted and the DC/DC conversion module to be started;
controlling a fuel cell to turn on to power a load via a high voltage bus, comprising:
and controlling the fuel cell to be started to supply power to the load through the DC/DC conversion module and the high-voltage bus.
Considering that the front end of the battery is connected with the fuel storage device through the fuel pipeline, and the rear end of the fuel battery is connected with the high-voltage bus through the DC/DC conversion module, if the fuel battery, the fuel storage device, the DC/DC conversion module and the fuel pipeline are directly and simultaneously started, the situation of fault shutdown of the fuel battery due to insufficient fuel supply for the fuel battery may occur.
In order to solve the technical problem, before the fuel cell is controlled to be started, the DC/DC is firstly put into the fuel cell, the fuel pipeline and the fuel storage device are conducted, and then the fuel cell is put into the fuel cell, namely the fuel cell is controlled to be started.
It should be noted that, based on the above description, when the fuel cell needs to be shut down later, in order to prevent the fuel supply of the fuel cell from being insufficient, the fuel cell needs to be shut down first, and then the fuel storage device, the fuel pipeline and the DC/DC conversion module are shut down. Further, the fuel in the present application may be, but is not limited to, hydrogen.
In conclusion, the working condition that the fuel cell is shut down due to failure caused by insufficient fuel supply is avoided, and the working reliability of the fuel cell is improved.
As a preferred embodiment, before controlling the fuel storage device to be turned on, the fuel pipeline to be conducted, and the DC/DC conversion module to be turned on, the method further includes:
controlling the power battery to be started;
acquiring the output voltage of a power battery;
controlling the fuel cell to turn on to supply power to the load through the DC/DC conversion module and the high voltage, comprising:
and regulating the voltage output by the fuel cell through the DC/DC conversion module by taking the output voltage of the power cell as the target output voltage of the fuel cell.
Considering that the output voltage of the power battery is unstable, if the fuel battery is started first and then the power battery is started, the output voltage of the power battery may be greater than the output voltage of the fuel battery, so that a pressure difference exists, and at this time, the power battery may cause current backflow to the DC/DC conversion module through the high-voltage bus, and may cause damage to the DC/DC conversion module.
In order to solve the technical problem, when the power battery and the fuel battery are started, the power battery is firstly controlled to be started, then in order to avoid generating pressure difference, after the power battery is started, the output voltage of the power battery is taken as a target voltage, and the voltage output by the fuel battery through the DC/DC conversion module is adjusted.
It should be noted that, considering that the output power of the fuel cell is not less than the consumed power of the high-voltage bus and the electric quantity of the power cell is less than the preset electric quantity, the fuel cell needs to charge the power cell, therefore, when the output voltage of the fuel cell is adjusted according to the output voltage of the power cell in the present application, the output voltage of the fuel cell is adjusted to be slightly greater than the output voltage of the power cell, and specifically, the degree of being greater than the output voltage of the power cell is sufficient to charge the power cell, which is determined according to the actual situation, and the present application is not limited herein.
In summary, the mode in the application can avoid generating pressure difference between the power battery and the output end of the DC/DC conversion module, thereby avoiding the damage of the DC/DC conversion module.
As a preferred embodiment, the method further comprises the following steps:
judging whether the fuel cell can continuously output power;
if not, controlling the output power of the power battery to supply power to the load through the high-voltage bus.
Considering that the fuel cell may have a fuel cell failure or cannot continuously output power due to insufficient fuel cell supply or other reasons, and the like, at this time, in order to ensure that the load on the train can normally work, the power battery output power is used to supply power to the load when the fuel cell cannot continuously output power, so that the reliability of load power supply is ensured.
In summary, the reliability of power supply for the load can be ensured by adopting the mode in the application.
Referring to fig. 2, fig. 2 is a block diagram of a hybrid power control device provided in the present invention, the device includes:
a memory 1 for storing a computer program;
the processor 2 is configured to implement the steps of the hybrid control method described above when executing a computer program.
In order to solve the above technical problem, the present application further provides a hybrid power control device, wherein the module for controlling the power battery to be turned on or off in the present application may be but is not limited to a train main control module, and the train main control module is further configured to obtain power consumption on the high-voltage bus and output power of the fuel cell; the consumed power is the sum of the required power of the load connected with the high-voltage bus; the module that determines whether the consumed power is greater than the output power and controls the fuel cell to be turned on and off may be, but is not limited to, an energy management module. The energy management module and the train main control module are transmitted through a network. However, considering that a network may have a fault, a traction hard wire, a brake hard wire, a fuel cell fault hard wire, a power battery fault hard wire and a fuel cell start fault hard wire are further arranged between the train main control module and the energy management module, a power battery start and stop hard wire is further arranged between the train main control module and the power battery, and when a network system has a fault, emergency traction under a network communication fault is further realized through corresponding hard wire control.
For other descriptions of the hybrid power control device provided in the present application, please refer to the above method embodiment, which is not described herein again.
A vehicle includes the hybrid control device.
For other descriptions of the vehicle provided by the present application, please refer to the above method embodiment, which is not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A hybrid control method characterized by comprising:
acquiring consumed power on a high-voltage bus, wherein the consumed power is the sum of required power of loads connected with the high-voltage bus;
acquiring the output power of the fuel cell;
judging whether the consumed power is larger than the output power of the fuel cell;
if so, controlling the output power of the fuel cell to increase, and controlling the fuel cell to be combined with a power cell to supply power to the load through the high-voltage bus;
and if not, controlling the fuel cell to independently supply power to the load.
2. The hybrid control method according to claim 1, wherein the fuel cell is connected to the high-voltage bus through a direct current/direct current converter DC/DC conversion module;
controlling the output power of the fuel cell to increase, comprising:
controlling the output current of the DC/DC conversion module to increase.
3. The hybrid control method according to claim 1, wherein after controlling the fuel cell to supply power to the load alone, further comprising:
acquiring electric quantity information of the power battery;
judging whether the electric quantity of the power battery is smaller than a preset electric quantity or not based on the electric quantity information of the power battery;
if yes, controlling the fuel cell to charge the power battery;
and if not, controlling the output power of the fuel cell to be reduced.
4. A hybrid control method according to claim 3, wherein the fuel cell is connected to the high-voltage bus through a DC/DC conversion module;
controlling the output power reduction of the fuel cell, comprising:
controlling an output current of the DC/DC conversion module to decrease.
5. The hybrid system control method according to claim 1, before obtaining the consumed power on the high-voltage bus, further comprising:
controlling the fuel cell to turn on to supply power to the load through the high voltage bus.
6. The hybrid control method according to claim 5, wherein a front end of the fuel cell is connected to a fuel storage device through a fuel pipe, and a rear end of the fuel cell is connected to the high voltage bus bar through a DC/DC conversion module;
before controlling the fuel cell to be started, the method further comprises the following steps:
controlling the fuel storage device to be started, the fuel pipeline to be conducted and the DC/DC conversion module to be started;
controlling the fuel cell to turn on to power the load via the high voltage bus, comprising:
controlling the fuel cell to turn on to supply power to the load through the DC/DC conversion module and the high-voltage bus.
7. The hybrid control method according to claim 6, wherein before controlling the fuel storage device to be turned on, the fuel pipe to be conducted, and the DC/DC conversion module to be turned on, the method further comprises:
controlling the power battery to be started;
acquiring the output voltage of the power battery;
controlling the fuel cell to turn on to power the load through the DC/DC conversion module and the high voltage, comprising:
and regulating the voltage output by the fuel cell through the DC/DC conversion module by taking the output voltage of the power cell as the target output voltage of the fuel cell.
8. The hybrid control method according to any one of claims 1 to 7, characterized by further comprising:
judging whether the fuel cell can continuously output power;
and if not, controlling the output power of the power battery to supply power to the load through a high-voltage bus.
9. A hybrid control device, characterized by comprising:
a memory for storing a computer program;
a processor for implementing the steps of the hybrid control method according to any one of claims 1 to 8 when executing said computer program.
10. A vehicle characterized by comprising the hybrid control apparatus according to claim 9.
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| CN202110361639.2A CN112937298A (en) | 2021-04-02 | 2021-04-02 | Hybrid power control method and device and vehicle |
| PCT/CN2022/072278 WO2022206126A1 (en) | 2021-04-02 | 2022-01-17 | Hybrid power control method and device, and vehicle |
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| WO2022206126A1 (en) | 2022-10-06 |
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