CN115799570B - High altitude adaptive fuel cell air intake system - Google Patents
High altitude adaptive fuel cell air intake system Download PDFInfo
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- CN115799570B CN115799570B CN202310026494.XA CN202310026494A CN115799570B CN 115799570 B CN115799570 B CN 115799570B CN 202310026494 A CN202310026494 A CN 202310026494A CN 115799570 B CN115799570 B CN 115799570B
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- 239000000446 fuel Substances 0.000 title claims abstract description 36
- 230000003044 adaptive effect Effects 0.000 title claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 111
- 239000001301 oxygen Substances 0.000 claims abstract description 111
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 109
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 239000012528 membrane Substances 0.000 claims description 65
- 239000012466 permeate Substances 0.000 claims description 12
- 230000006698 induction Effects 0.000 claims 2
- 238000000034 method Methods 0.000 description 11
- 230000008859 change Effects 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 206010021143 Hypoxia Diseases 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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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 invention provides a high altitude self-adaptive fuel cell air intake system, comprising: the air supply system comprises a galvanic pile, a main air pipeline, an auxiliary air pipeline, an intercooler and a humidifier; the main air pipeline and the auxiliary air pipeline are both communicated with an inlet of an intercooler, air of the main air pipeline and/or the auxiliary air pipeline sequentially passes through the intercooler and a humidifier and then enters the galvanic pile, and effluents generated by galvanic pile reaction are discharged after passing through the humidifier. Through setting up main air pipeline and auxiliary air pipeline, when the pile operation is at low height above sea level, main air pipeline alone work provides the air for the pile, when the pile operation is at high height above sea level, still maintains the operation operating mode at low height above sea level, and the auxiliary air return circuit automatic identification needs the intake flow of compensation, and the two provides the air for the pile jointly. The auxiliary air pipeline is added, so that the air inflow and the oxygen content of air at high altitude are increased, and the aim of simultaneously ensuring the air inflow and the air oxygen content of the fed air in the pile is fulfilled.
Description
Technical Field
The invention belongs to the technical field of fuel cells, and particularly relates to a high-altitude self-adaptive fuel cell air inlet system.
Background
When a fuel cell engine operates in a high altitude area, the air pressure is gradually reduced along with the gradual reduction of the oxygen content in the air due to the increase of the altitude, so that the air supply quantity of an air compressor is reduced, and the oxygen participating in the electrochemical reaction of the fuel cell is also gradually reduced, so that the oxygen deficiency phenomenon of the fuel cell is caused, the output power of a fuel cell system can be limited, and the power performance and the safety performance of the whole vehicle are directly related. In a high altitude area, the oxygen partial pressure of the cathode of the galvanic pile is easily influenced due to the change of the absolute pressure of air, so that the performance of the galvanic pile is influenced. Under the condition that the capacity of the air compressor is limited, the air pressure and the oxygen excess coefficient required under the normal pressure cannot be simultaneously met. In order for the fuel cell system to operate efficiently and stably in high and low altitude environments, high altitude oxygen compensation is required.
In the prior art, the load of the air compressor is increased to provide high-pressure large-flow air, the altitude change is adapted by sacrificing the power consumption of the air compressor, and the service life and the reliability of the air compressor are greatly challenged.
The existing fuel cell air supply system can not work well under the high-altitude low-oxygen working condition, and in order to adapt to altitude change, the rotating speed of an air compressor is increased through mechanical regulation by a control strategy so as to ensure the pile-entering pressure of air. Although a certain compensation can be brought, once the altitude change exceeds the bearing range of the air compressor, the dynamic property of the whole vehicle can be directly influenced. And in the air flow increased by regulating and controlling the air compressor at high altitude, the oxygen content can not meet the reaction requirement of the fuel cell system.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a high-altitude self-adaptive fuel cell air inlet system, which at least partially solves the problem that the air inlet flow and the air inlet oxygen content of a reactor cannot be simultaneously ensured in the prior art.
The disclosed embodiment provides a high altitude self-adaptation fuel cell air intake system, including: the air supply system comprises a galvanic pile, a main air pipeline, an auxiliary air pipeline, an intercooler and a humidifier;
the main air pipeline and the auxiliary air pipeline are both communicated with an inlet of the intercooler, air of the main air pipeline and/or the auxiliary air pipeline sequentially passes through the intercooler and the humidifier and then enters the galvanic pile, and discharge generated by galvanic pile reaction is discharged after passing through the humidifier.
Optionally, the main air pipeline includes a main path flow sensor and a main path air compressor, an outlet of the main path flow sensor is communicated with an inlet of the main path air compressor, and an outlet of the main path air compressor is communicated with an inlet of the intercooler.
Optionally, the main air pipeline further includes a main air filter, and an outlet of the main air filter is communicated with an inlet of the main flow sensor.
Optionally, the auxiliary air pipeline includes an oxygen permeable membrane set, an auxiliary air compressor and an auxiliary flow sensor, an outlet of the oxygen permeable membrane set is communicated with an inlet of the auxiliary air compressor, an outlet of the auxiliary air compressor is communicated with an inlet of the intercooler, and the auxiliary flow sensor is arranged on a pipeline between the auxiliary air compressor and the intercooler.
Optionally, the auxiliary air pipeline further comprises an auxiliary air filter, and an outlet of the auxiliary air filter is communicated with an inlet of the oxygen permeable membrane group.
Optionally, the oxygen permeable membrane group comprises a plurality of layers of oxygen permeable membranes and a plurality of layers of PTC, and the PTC is arranged between the oxygen permeable membranes of the adjacent layers.
Optionally, the reactor further comprises a reactor inlet flow sensor and a reactor inlet pressure sensor, and the reactor inlet flow sensor and the reactor inlet pressure sensor are both arranged at the inlet of the galvanic pile.
Optionally, the reactor further comprises a tail exhaust throttle valve, and the effluent generated by the reactor passes through the tail exhaust throttle valve after passing through the humidifier.
Optionally, the output current of the stack and the altitude information of the stack are obtained, the air flow required by the stack and the air pressure corresponding to the stack are obtained based on the output current and the altitude information,
when the altitude is less than a set threshold value, closing the auxiliary air pipeline, and controlling the air flow required by the electric pile and the air pressure corresponding to the electric pile by adjusting a main-circuit air compressor and a tail-row throttle valve arranged at the outlet of the electric pile;
when the altitude is not less than the set threshold, the oxygen permeable membrane and the PTC are controlled based on the altitude range, the oxygen flow rate to be compensated is obtained according to the altitude, and the rotating speed of the auxiliary air compressor is adjusted according to the compensated oxygen flow rate, so that the air inlet flow rate of the galvanic pile and the air inlet oxygen content of the galvanic pile are ensured to meet the requirements.
Optionally, when the altitude is not less than the set threshold, controlling the oxygen permeable membrane group and the PTC based on the altitude range, including:
the oxygen permeable membrane group comprises a first group of oxygen permeable membranes, a second group of oxygen permeable membranes and a third group of oxygen permeable membranes;
the PTC comprises a first layer PTC, a second layer PTC and a third layer PTC;
when the altitude H ranges from: when H is more than or equal to 1000km and less than 2000km, the first layer of PTC is electrified and heated, and the first group of oxygen permeable membranes start to permeate oxygen;
when H is more than or equal to 2000km and less than 3000km, the first PTC layer and the second PTC layer are electrified and heated, and the first group of oxygen permeable membranes and the second group of oxygen permeable membranes start to permeate oxygen;
when H is more than or equal to 3000km, the first PTC layer, the second PTC layer and the third PTC layer are electrified and heated, and the first group of oxygen permeable membrane, the second group of oxygen permeable membrane and the third group of oxygen permeable membrane start to permeate oxygen.
According to the high-altitude self-adaptive fuel cell air inlet system provided by the invention, the main air pipeline and the auxiliary air pipeline are arranged, when the galvanic pile operates at a low altitude, the main air pipeline works alone to provide air for the galvanic pile, and when the galvanic pile operates at a high altitude, the main air pipeline and the auxiliary air pipeline simultaneously provide air for the galvanic pile. The auxiliary air pipeline is added, so that the air inflow and the oxygen content of air at high altitude are increased, and the aim of simultaneously ensuring the air inflow and the air oxygen content of the fed air in the pile is fulfilled.
Drawings
The foregoing and other objects, features and advantages of the disclosure will be apparent from the following more particular descriptions of exemplary embodiments of the disclosure as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the disclosure.
Fig. 1 is a flow chart illustrating a structure of an air intake system of a high altitude adaptive fuel cell according to an embodiment of the present disclosure;
fig. 2 is a control flow chart of a high altitude adaptive fuel cell air intake system provided by an embodiment of the present disclosure;
FIG. 3 is a schematic structural view of an oxygen permeable membrane module provided by an embodiment of the present disclosure;
wherein, 1-main path empty filtering; 2-main path flow sensor; 3-main path air compressor; 4-an intercooler; 5-a humidifier; 6-pile-in flow sensor; 7-a reactor pressure sensor; 8-electric pile; 9-tail exhaust throttle valve; 10-air filtration of the auxiliary road; 11-oxygen permeable membrane group; 12-a secondary air compressor; 13-a side road flow sensor; 14-first layer PTC; 15-second layer PTC; 16-third layer PTC; 17-a first set of oxygen permeable membranes; 18-a second set of oxygen permeable membranes; 19-third group of oxygen permeable membranes.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
It is to be understood that the embodiments of the present disclosure are described below by specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure herein. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the disclosure, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should be further noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present disclosure, and the drawings only show the components related to the present disclosure rather than being drawn according to the number, shape and size of the components in actual implementation, and the type, number and proportion of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.
As shown in fig. 1, the present embodiment discloses a high altitude adaptive fuel cell air intake system, comprising: the air supply system comprises a galvanic pile, a main air pipeline, an auxiliary air pipeline, an intercooler and a humidifier;
the main air pipeline and the auxiliary air pipeline are both communicated with an inlet of an intercooler, air of the main air pipeline and/or the auxiliary air pipeline sequentially passes through the intercooler and a humidifier and then enters the galvanic pile, and effluents generated by galvanic pile reaction are discharged after passing through the humidifier.
Optionally, the main air pipeline includes a main path flow sensor and a main path air compressor, an outlet of the main path flow sensor is communicated with an inlet of the main path air compressor, and an outlet of the main path air compressor is communicated with an inlet of the intercooler.
Optionally, the main air pipeline further includes a main air filter, and an outlet of the main air filter is communicated with an inlet of the main flow sensor.
Optionally, the auxiliary air pipeline includes an oxygen membrane set, an auxiliary air compressor and an auxiliary flow sensor, an outlet of the oxygen membrane set is communicated with an inlet of the auxiliary air compressor, an outlet of the auxiliary air compressor is communicated with an inlet of the intercooler, and the auxiliary flow sensor is arranged on a pipeline between the auxiliary air compressor and the intercooler.
Optionally, the auxiliary air pipeline further includes an auxiliary air filter, and an outlet of the auxiliary air filter is communicated with an inlet of the oxygen membrane set.
Optionally, the oxygen permeable membrane group comprises a plurality of layers of oxygen permeable membranes and a plurality of layers of PTC, and the PTC is arranged between the oxygen permeable membranes of the adjacent layers.
Optionally, the reactor further comprises a reactor inlet flow sensor and a reactor inlet pressure sensor, and the reactor inlet flow sensor and the reactor inlet pressure sensor are both arranged at the inlet of the galvanic pile.
Optionally, the reactor further comprises a tail exhaust throttle valve, and the effluent generated by the reactor passes through the tail exhaust throttle valve after passing through the humidifier.
Optionally, the output current of the stack and the altitude information of the stack are obtained, the air flow required by the stack and the air pressure corresponding to the stack are obtained based on the output current and the altitude information,
when the altitude is smaller than a set threshold value, closing the auxiliary air pipeline, and controlling the air flow required by the electric pile and the air pressure corresponding to the electric pile by adjusting a main-path air compressor and a tail exhaust throttle valve arranged at the outlet of the electric pile;
when the altitude is not less than the set threshold, the oxygen permeable membrane and the PTC are controlled based on the altitude range, the oxygen flow rate to be compensated is obtained according to the altitude, and the rotating speed of the auxiliary air compressor is adjusted according to the compensated oxygen flow rate, so that the air inlet flow rate of the galvanic pile and the air inlet oxygen content of the galvanic pile are ensured to meet the requirements.
Optionally, when the altitude is not less than the set threshold, controlling the oxygen permeable membrane group and the PTC based on the altitude range, including:
as shown in FIG. 3, the oxygen permeable membrane groups include a first group of oxygen permeable membranes, a second group of oxygen permeable membranes, and a third group of oxygen permeable membranes;
the PTC comprises a first layer PTC, a second layer PTC and a third layer PTC;
when the altitude H ranges from: when H is more than or equal to 1000km and less than 2000km, the first layer of PTC is electrified and heated, and the first group of oxygen permeable membranes start to permeate oxygen;
when H is more than or equal to 2000km and less than 3000km, the first PTC layer and the second PTC layer are electrified and heated, and the first group of oxygen permeable membranes and the second group of oxygen permeable membranes start to permeate oxygen;
when H is more than or equal to 3000km, the first PTC layer, the second PTC layer and the third PTC layer are electrified and heated, and the first oxygen permeable membrane group, the second oxygen permeable membrane group and the third oxygen permeable membrane group start to permeate oxygen.
As shown in fig. 2, the output current of the stack is obtained by an FCU (fuel cell controller) of the fuel cell, the altitude information is obtained by a VCU (vehicle control unit) of the vehicle, and the theoretically required air flow Q and the air pressure P corresponding to the stack are calculated according to the collected current and altitude. And (3) judging the altitude: if the area is a low-altitude area, the whole auxiliary road is in a closed state, only the main road works, and the air flow and the pressure of the reactor are controlled to meet the requirements of the electric reactor by adjusting the air compressor of the main road and the tail exhaust throttle valve; if the altitude is judged to be high, H is more than or equal to 1000km and less than 2000km according to the range of the altitude H, the first layer of PTC is electrified and heated, and the first group of oxygen permeable membranes start to permeate oxygen; h is more than or equal to 2000km and less than 3000km, the PTC of the first layer and the PTC of the second layer are electrified and heated, and the oxygen permeable membranes of the first group and the second group start to permeate oxygen; h is more than or equal to 3000km, the first layer, the second layer and the third layer are electrified and heated, and the first group, the second group and the third group of oxygen permeable membranes start to permeate oxygen. The oxygen flow needing additional compensation is calculated as q according to the altitude and altitude influence, the rotating speed of the auxiliary air compressor is adjusted according to the corresponding compensation amount, and the purpose that the air inlet flow and the air inlet oxygen content meet the requirement of the galvanic pile is achieved.
The system of the embodiment can simultaneously ensure the inlet flow and the inlet oxygen content of the fuel cell, so that the fuel cell automobile can run under normal working conditions and high altitude low oxygen working conditions, and the high-efficiency and stable operation of the fuel cell is ensured.
The present embodiment has the following advantages:
1. the oxygen permeable membrane is used on the fuel cell engine to replace the existing high-pressure oxygen cylinder, so that the high-concentration oxygen can be used at any time.
2. The auxiliary road controls the number of oxygen permeable membrane tubes participating in the reaction by controlling the heating range of the PTC according to the actual oxygen supplementing requirement, so that the oxygen preparation amount is adjusted in real time. For high pressure oxygen storage scheme, it is high-efficient convenient.
3. The air inlet scheme of the main road and the auxiliary road is set, the main road operates under normal low-altitude working conditions, repeated change of the operating conditions of the air compressor due to altitude change can be avoided, and the stability and the reliability of the air compressor are improved; the auxiliary road automatically identifies the additionally required oxygen supplement amount according to the change of the altitude, ensures the air flow supply of an air inlet system, improves the environmental adaptability of a fuel cell engine, ensures that the running working conditions of two paths of air compressors are in the high-efficiency stable region, has stable running working conditions and lower power consumption, and greatly improves the service life and the reliability of the air compressors.
4. The oxygen permeable membrane is utilized to ensure that the fuel cell engine system has proper oxygen for the fuel cell stack to participate in electrochemical reaction, the provided extra flow is high-concentration oxygen, the problem of oxygen rarefied in the air at high altitude is solved, the problem of oxygen deficiency of the fuel cell at high altitude is solved, and the stable output power of the fuel cell system is ensured.
The foregoing describes the general principles of the present disclosure in conjunction with specific embodiments, however, it is noted that the advantages, effects, etc. mentioned in the present disclosure are merely examples and are not limiting, and they should not be considered essential to the various embodiments of the present disclosure. Furthermore, the foregoing disclosure of specific details is for the purpose of illustration and description and is not intended to be limiting, since the disclosure will be described in detail with reference to specific details.
In the present disclosure, relational terms such as first and second, and the like may be 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, and the block diagrams of devices, apparatuses, devices, systems, and apparatuses herein referred to are used merely as illustrative examples and are not intended to require or imply that the connections, arrangements, configurations, etc. must be made in the manner shown in the block diagrams. These devices, apparatuses, devices, systems may be connected, arranged, configured in any manner, as will be appreciated by one skilled in the art. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including, but not limited to," and are used interchangeably therewith. The words "or" and "as used herein mean, and are used interchangeably with, the word" and/or, "unless the context clearly dictates otherwise. The word "such as" is used herein to mean, and is used interchangeably with, the phrase "such as but not limited to".
Also, as used herein, "or" as used in a list of items beginning with "at least one" indicates a separate list, such that, for example, a list of "at least one of a, B, or C" means a or B or C, or AB or AC or BC, or ABC (i.e., a and B and C). Furthermore, the word "exemplary" does not mean that the described example is preferred or better than other examples.
It is also noted that in the systems and methods of the present disclosure, components or steps may be decomposed and/or re-combined. These decompositions and/or recombinations are to be considered equivalents of the present disclosure.
Various changes, substitutions and alterations to the techniques described herein may be made without departing from the techniques of the teachings as defined by the appended claims. Moreover, the scope of the claims of the present disclosure is not limited to the particular aspects of the process, machine, manufacture, composition of matter, means, methods and acts described above. Processes, machines, manufacture, compositions of matter, means, methods, or acts, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or acts.
The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the disclosure. Thus, the present disclosure is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit embodiments of the disclosure to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.
Claims (7)
1. A high altitude adaptive fuel cell air induction system, comprising: the air supply system comprises a galvanic pile, a main air pipeline, an auxiliary air pipeline, an intercooler and a humidifier;
the main air pipeline and the auxiliary air pipeline are both communicated with an inlet of an intercooler, air of the main air pipeline and/or the auxiliary air pipeline sequentially passes through the intercooler and a humidifier and then enters the galvanic pile, and effluents generated by galvanic pile reaction are discharged after passing through the humidifier;
the main air pipeline comprises a main pipeline flow sensor and a main pipeline air compressor;
the auxiliary air pipeline comprises an oxygen permeable membrane group, an auxiliary air compressor and an auxiliary flow sensor, wherein one outlet of the oxygen permeable membrane group is communicated with an inlet of the auxiliary air compressor, an outlet of the auxiliary air compressor is communicated with an inlet of the intercooler, and the auxiliary flow sensor is arranged on a pipeline between the auxiliary air compressor and the intercooler;
the oxygen permeable membrane group comprises a plurality of layers of oxygen permeable membranes and a plurality of layers of PTC, and the PTC is arranged between the oxygen permeable membranes of the adjacent layers;
acquiring output current of the galvanic pile and altitude information of the galvanic pile, obtaining air flow required by the galvanic pile and air pressure corresponding to the galvanic pile based on the output current and the altitude information,
when the altitude is less than a set threshold value, closing the auxiliary air pipeline, and controlling the air flow required by the electric pile and the air pressure corresponding to the electric pile by adjusting a main-circuit air compressor and a tail-row throttle valve arranged at the outlet of the electric pile;
when the altitude is not less than the set threshold, the oxygen permeable membrane and the PTC are controlled based on the altitude range, the oxygen flow rate to be compensated is obtained according to the altitude, and the rotating speed of the auxiliary air compressor is adjusted according to the compensated oxygen flow rate, so that the air inlet flow rate of the galvanic pile and the air inlet oxygen content of the galvanic pile are ensured to meet the requirements.
2. The high altitude adaptive fuel cell air intake system of claim 1, wherein an outlet of the main path flow sensor communicates with an inlet of a main path air compressor, an outlet of the main path air compressor communicating with an inlet of an intercooler.
3. The high altitude adaptive fuel cell air induction system according to claim 2, wherein said primary air line further comprises a primary air filter, an outlet of said primary air filter communicating with an inlet of a primary flow sensor.
4. The high altitude adaptive fuel cell air intake system of claim 1, wherein the secondary air line further comprises a secondary air filter, an outlet of the secondary air filter being in communication with an inlet of the oxygen permeable membrane group.
5. The high-altitude adaptive fuel cell air intake system according to claim 1, further comprising a stack-entering flow sensor and a stack-entering pressure sensor, both disposed at a stack inlet.
6. The high altitude adaptive fuel cell air intake system of claim 1, further comprising a tail throttle valve through which the effluent generated by the reactor passes after passing through a humidifier.
7. The high altitude adaptive fuel cell air intake system according to claim 1, wherein when the altitude is not less than a set threshold, controlling the oxygen permeable membrane and the PTC based on a range of the altitude comprises:
the oxygen permeable membrane group comprises a first group of oxygen permeable membranes, a second group of oxygen permeable membranes and a third group of oxygen permeable membranes;
the PTC comprises a first layer of PTC, a second layer of PTC and a third layer of PTC;
when the altitude H ranges from: when H is more than or equal to 1000km and less than 2000km, the first layer of PTC is electrified and heated, and the first group of oxygen permeable membranes start to permeate oxygen;
when H is more than or equal to 2000km and less than 3000km, the first PTC layer and the second PTC layer are electrified and heated, and the first group of oxygen permeable membranes and the second group of oxygen permeable membranes start to permeate oxygen;
when H is more than or equal to 3000km, the first PTC layer, the second PTC layer and the third PTC layer are electrified and heated, and the first oxygen permeable membrane group, the second oxygen permeable membrane group and the third oxygen permeable membrane group start to permeate oxygen.
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