CN110416579A - Unmanned plane stack performance recovery system and its recovery device and recovery control method - Google Patents
Unmanned plane stack performance recovery system and its recovery device and recovery control method Download PDFInfo
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- CN110416579A CN110416579A CN201810383616.XA CN201810383616A CN110416579A CN 110416579 A CN110416579 A CN 110416579A CN 201810383616 A CN201810383616 A CN 201810383616A CN 110416579 A CN110416579 A CN 110416579A
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- Prior art keywords
- fuel cell
- cell pack
- recovery
- unmanned plane
- unit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04537—Electric variables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04664—Failure or abnormal function
-
- 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
Abstract
The present invention provides a kind of fuel cell recovery devices for unmanned plane fuel cell system, including an at least resistance element, an at least switching circuit and at least a fuel cell pack recovery device control unit, the switching circuit is connected to the resistance element and the fuel cell pack recovery device control unit, and control circuit on-off, the fuel cell pack recovery device control unit controls the discharge time of the resistance element and the on-off of the control switching circuit, the resistance element is restored the monolithic battery output voltage of an at least fuel cell pack unit for unmanned plane fuel cell system to an at least voltage threshold range by transient large current discharge.So as to restore to the fuel cell pack unit in work.
Description
Technical field
The present invention relates to fuel cell field, particularly a kind of unmanned plane stack performance recovery system and its
Recovery device and recovery control method.
Background technique
What hydrogen energy source fuel cell used is the reverse principle of electrolysis water, is one kind according to electrochemical principle, will be stored in
Chemical energy in fuel and oxidant is directly translated into the energy conversion device of electric energy.Entire Hydrogen Energy source battery generates electricity just as one
Machine.The feature of fuel cell maximum is not to be related to burning during the reaction, thus energy conversion efficiency is not by Carnot cycle
Limitation, photoelectric transformation efficiency generally all 50% or more, have efficient, clean distinguishing feature.Hydrogen fuel cell has been at present
It is widely used in unmanned plane dynamical system.In the direct conversion process of chemical energy in hydrogen fuel and oxidant, the shifting of reactant
Dynamic path is blocked, and reactant can not reach catalyst, and in initial operation, the hydrogen ion carrier for forming three phase boundary is not easy
It is hydrolyzed, and it is difficult to ensure the continuous mobility of hydrogen ion and electronics.In order to ensure fuel cell is being assembled in fuel electricity
The performance of pile is decayed the optimum performance or fuel cell stack operation of fuel cell after in the heap of pond afterwards for a period of time,
It needs to restore fuel cell pack.Polymer generation oxidation reaction when fuel cell pack exports electric energy, and fuel cell pack
Performance recovery is exactly the process that polymer generation oxidation reaction is restored to original performance.
Existing unmanned plane fuel cell pack recovery technology is by external load device, by fuel cell pack monocell
Output voltage be reduced to voltage threshold or less.When the monocell output voltage of unmanned plane fuel cell pack is lower than this threshold
With post-consumer polymer oxidation reaction, which occurs, for value can be restored to good performance originally.This external load device can be resistive
Or it is inductive.
Existing unmanned plane fuel cell pack recovery device is the resistive load equipment as an outside, the disadvantage is that outdoor
It is inconvenient to carry when task of turning out for work；User's operation process is complicated；Equipment cost is relatively high；Weight and volume is bigger.External
Inductance perception component (unmanned plane motor or fan) will generate energy feedback as the mode of load, and the feedback of this energy is such as
Fruit is not consumed the service life that will directly damage fuel cell pack or influence fuel cell pack.
Summary of the invention
The purpose of the present invention is to provide a kind of unmanned plane stack performance recovery system and its recovery devices and extensive
Multiple control method, it is light-weight, it is small in size to can integrate in fuel-cell generation unit and be arranged at unmanned plane.
Another object of the present invention is to provide a kind of unmanned plane stack performance recovery system and its recovery devices
And recovery control method, it is very short to the recovery time of fuel cell pack, Millisecond can be reached.
Another object of the present invention is to provide a kind of unmanned plane stack performance recovery system and its recovery devices
And recovery control method, control is simple, and it is easy to operate, it can control or manually control by system.
Another object of the present invention is to provide a kind of unmanned plane stack performance recovery system and its recovery devices
And recovery control method, the fuel cell pack in work can be restored in real time, bring better experience to user.
Another object of the present invention is to provide a kind of unmanned plane stack performance recovery system and its recovery devices
And recovery control method does not have the problem of energy feedback as resistive load.
Another object of the present invention is to provide a kind of unmanned plane stack performance recovery system and its recovery devices
And recovery control method, it can be integrated in unmanned plane fuel cell power system.
Another object of the present invention is to provide a kind of unmanned plane stack performance recovery system and its recovery devices
And recovery control method, can do recovery action in ground static state can also do again when finding performance degradation after unmanned plane takes off
The movement of performance recovery, so that the selectable leeway of user is bigger, the user experience brought.
Another object of the present invention is to provide a kind of unmanned plane stack performance recovery system and its recovery devices
And recovery control method, it saves and carries other performance recovery devices and ancillary equipment on ground.
Another object of the present invention is to provide a kind of unmanned plane stack performance recovery system and its recovery devices
And recovery control method, save the overall cost of handling of goods and materials cost and system.
In order to realize at least one above-mentioned purpose, the present invention provides a kind of fuel for unmanned plane fuel cell system
Battery recovery device, including an at least resistance element, at least a switching circuit and an at least fuel cell pack recovery device control
Unit processed, the switching circuit are connected to the resistance element and the fuel cell pack recovery device control unit, and
Control circuit on-off, the fuel cell pack recovery device control unit control discharge time and the control of the resistance element
The on-off of the switching circuit, the resistance element pass through transient large current discharge at least the one of unmanned plane fuel cell system
The monolithic battery output voltage of fuel cell pack unit restores to an at least voltage threshold range.
In some embodiments, the voltage threshold range is 0.68V~0.45V.
In some embodiments, it is 100~300 millis that the fuel cell recovery device, which executes heavy current discharging time range,
Second.
In some embodiments, the fuel cell recovery device executes the time interval range of heavy-current discharge every time and is
300~500 milliseconds.
In some embodiments, the Standard resistance range of the resistance element is 0.1~500 milliohm.
In some embodiments, the resistance element is pure resistance.
In some embodiments, the resistance element is power tube.
In some embodiments, the switching circuit is metal-oxide-semiconductor or the parallel connection of multiple metal-oxide-semiconductors or relay class component.
According to another aspect of the present invention, a kind of fuel cell pack recovery system for unmanned plane is additionally provided, including
An at least fuel generating device and at least a fuel cell pack recovery device, wherein the fuel cell pack recovery device is defeated
Enter the output end that end is connected to an at least fuel cell pack unit for the fuel generating device, the fuel cell pack restores
Device is restored the monolithic battery output voltage of the fuel cell pack unit at least one by executing transient large current discharge
Below voltage threshold range.
In some embodiments, the fuel cell recovery device includes an at least resistance element, at least a switching circuit
And an at least fuel cell pack recovery device control unit, the switching circuit are connected to the resistance element and described
Fuel cell pack recovery device control unit, and control circuit on-off, the fuel cell pack recovery device control unit control
The discharge time of the resistance element and the on-off of the control switching circuit, the resistance element execute instantaneous large-current and put
Electricity.
In some embodiments, the fuel generating device further includes at least one power generation monitoring control unit, the power generation
Monitoring control unit monitors the total output electric current and voltage of the fuel cell pack unit, defeated when the fuel cell pack unit
When power performance degradation occurs lower than the performance number of calibration out, the power generation monitoring control unit is by controlling the fuel cell
Heap recovery device carries out performance recovery to the fuel cell pack unit.
In some embodiments, the power generation monitoring control unit includes an at least sensor, the power generation monitoring control
The sensor of unit monitors the fuel cell pack unit in real time, and obtains total output electricity of the fuel cell pack unit
Flow parameter and voltage parameter.
In some embodiments, the power generation monitoring control unit further includes an at least power determining device, the power generation prison
Depending on control unit the power determining device according to the parameter value of the sensor Real-time Feedback to the fuel cell pack unit
Output power whether be lower than the performance number of calibration and judged.
In some embodiments, the power generation monitoring control unit further includes at least one recovery adjuster, when the fuel
When the output power of stack unit is lower than the performance number demarcated, the recovery adjuster is extensive by controlling the fuel cell pack
Apparatus for coating carries out performance recovery to the fuel cell pack unit.
In some embodiments, the fuel cell pack recovery system for unmanned plane further includes that at least one driving is single
Member, the driving unit are connected to the power generation monitoring control unit.
In some embodiments, the fuel generating device further includes an at least cooling system unit, the confession of an at least air
To unit and an at least fuel supply unit, the cooling system unit is connected to the fuel cell pack unit, described
Air feed unit provides air to the fuel cell pack unit, and the fuel supply unit provides fuel to the fuel electricity
Pond heap unit.
In some embodiments, the power generation monitoring control unit further includes an at least switch controller, controls the sky
The switch of gas feed unit, the cooling system unit and the fuel supply unit.
In some embodiments, the fuel cell pack recovery system for unmanned plane further includes that at least one control is opened
It closes, the control switch is connected to the fuel cell pack recovery device, and carries out to the fuel cell pack recovery device
Switch control.
According to another aspect of the present invention, a kind of recovery controlling party of unmanned plane fuel cell recovery system is additionally provided
Method, comprising the following steps:
(A) an at least resistance element for an at least fuel cell pack recovery device executes heavy-current discharge, at least a fuel
The output voltage of stack unit is lowered at least range of a voltage threshold or less；
(B) an at least fuel cell pack recovery device control unit for the fuel cell pack recovery device controls the resistance
Property element execute heavy-current discharge discharge time；And
(C) output voltage of the fuel cell pack unit is restored in normal voltage output range.
In some embodiments, at least one power generation monitoring control unit is further comprised the steps of: before the step (A) to be opened into
Switch, the switch of an at least cooling system unit and the switch of an at least fuel supply unit of a few air feed unit, combustion
Expect that stack unit generates an at least voltage output.
In some embodiments, further comprising the steps of: before the step (A) ought at least one power generation monitoring control unit monitoring
To fuel cell pack unit output power lower than calibration performance number when, connect at least the one of the fuel cell pack recovery device
Switching circuit.
In some embodiments, the fuel cell pack restores after the completion of electric discharge is further comprised the steps of: before the step (D)
The switching circuit of device is disconnected.
Detailed description of the invention
Fig. 1 be a kind of unmanned plane stack performance recovery system according to a preferred embodiment of the present invention and its
The structural block diagram schematic diagram of recovery device.
Fig. 2 is a kind of the extensive of unmanned plane stack performance recovery system of above preferred embodiment according to the present invention
The structural block diagram schematic diagram of apparatus for coating.
Fig. 3 be above preferred embodiment according to the present invention a kind of unmanned plane stack performance recovery system and its
The structural block diagram schematic diagram of recovery device.
Fig. 4 is a kind of recovery control of unmanned plane stack performance recovery system according to an embodiment of the invention
The flow diagram of method processed.
Specific embodiment
It is described below for disclosing the present invention so that those skilled in the art can be realized the present invention.It is excellent in being described below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.It defines in the following description
Basic principle of the invention can be applied to other embodiments, deformation scheme, improvement project, equivalent program and do not carry on the back
Other technologies scheme from the spirit and scope of the present invention.
It will be understood by those skilled in the art that in exposure of the invention, term " longitudinal direction ", " transverse direction ", "upper",
The orientation of the instructions such as "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" or position are closed
System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without referring to
Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore above-mentioned art
Language is not considered as limiting the invention.
It is understood that term " one " is interpreted as " at least one " or " one or more ", i.e., in one embodiment,
The quantity of one element can be one, and in a further embodiment, the quantity of the element can be it is multiple, term " one " is no
It can be interpreted as the limitation to quantity.
As shown in Figure 1 to Figure 3, a kind of unmanned plane fuel cell recovery system based on a preferred embodiment of the present invention
And its recovery device is illustrated.The unmanned plane fuel cell recovery system of the invention and its recovery device can be on ground
Static state does recovery action can also do the movement of performance recovery when finding performance degradation after unmanned plane takes off again, and save ground
Other performance recovery devices and ancillary equipment and the overall cost for saving handling of goods and materials cost and system are carried on face.
Specifically, as shown in Figure 1, unmanned plane fuel cell recovery system includes a fuel cell pack recovery device
10, a fuel cell pack unit 20, one power generation monitoring control unit 30, a driving unit 40, a cooling system unit 50, one combustion
Auxiliary unit required for material feed unit 60, an air feed unit 70 and other unmanned planes.
The driving unit 40 provides power for unmanned plane, may be implemented as in this preferred embodiment motor and
The governor for controlling motor speed is that electricity is adjusted, and motor may be implemented as brush motor, also may be implemented as brushless motor.When
So, it will be appreciated by those skilled in the art that, the driving unit 40 can also be implemented as it in other embodiments
To provide required power for unmanned plane, the present invention is not limited thereto in this regard for his type.
In this preferred embodiment of the invention, the air feed unit 70 is that the fuel cell pack unit 20 mentions
Air required for converting for energy, the fuel supply unit 60 are that the fuel cell pack unit 20 provides fuel supply,
The cooling system unit 50 is cooled down when the fuel cell pack unit 20 is electrochemically reacted.
The effect of the power generation monitoring control unit 30 is that the fuel cell pack unit 20 is monitored by sensor
Total output electric current and voltage, the performance of the fuel cell pack unit 20 is monitored by these parameters；When the discovery fuel
The output power of stack unit 20 is considered as the performance degradation of the fuel cell pack unit 20 lower than the performance number of calibration, just
It needs to carry out performance recovery to the fuel cell pack unit 20 by fuel cell pack recovery device 10 described in software control.
In addition, the power generation monitoring control unit 30 can also monitor the driving unit 40 by sensor, such as
The revolving speed etc. for monitoring and obtaining the motor of the driving unit 40 monitors the driving unit 40 by the parameter of feedback, when
It was found that can be controlled by control methods such as softwares the driving unit 40, be made when parameter area exceeds normal range (NR)
Its running parameter is in the normal range.
Wherein the output of the fuel cell pack unit 20 is connect with the input of the fuel cell pack recovery device 10.Institute
State fuel cell pack unit 20, the cooling system unit 50, the air feed unit 70, the fuel supply unit 60,
The power generation monitoring control unit 30 and other auxiliary units, which cooperate, constitutes the power generator that fuel is converted into electric energy, from
And fuel chemical energy is converted into electric energy by electrochemical reaction, and work in reasonable interval.
That is, in this preferred embodiment of the invention, the fuel cell pack unit 20, the cooling system
Unit 50, the air feed unit 70, the fuel supply unit 60, power generation monitoring control unit 30 and other are auxiliary
Unit is helped to be defined for the fuel generating device of unmanned plane.In other words, described in this preferred embodiment of the invention
Unmanned plane fuel cell recovery system includes a fuel generating device, the fuel cell pack recovery device 10 and the hair
Electricity monitoring control unit 30.The fuel generating device include the fuel cell pack unit 20, the cooling system unit 50,
The air feed unit 70, the fuel supply unit 60, power generation monitoring control unit 30 and other auxiliary units,
Wherein the input terminal of the fuel cell pack recovery device 10 is connected to the fuel cell pack of the fuel generating device
The effect of the output end of unit 20, the power generation monitoring control unit 30 is that the fuel cell pack list is monitored by sensor
The total output electric current and voltage of member 20, when the output power for finding the fuel cell pack unit 20 is lower than the performance number of calibration just
Think the performance degradation of the fuel cell pack unit 20, it is necessary to by controlling described 10 pairs of institutes of fuel cell pack recovery device
It states fuel cell pack unit 20 and carries out performance recovery.Specifically, in one embodiment, as shown in figure 3, power generation monitoring control
Unit 30 includes a sensor 31, a power determining device 32 and a recovery adjuster 33.The power generation monitors control unit 30
The sensor 31 monitor the fuel cell pack unit 20 in real time, and obtain total output of the fuel cell pack unit 20
Current parameters and voltage parameter.The power determining device 32 of the power generation monitoring control unit 30 is according to the sensor 31
The performance number whether parameter value of Real-time Feedback is lower than calibration to the output power of the fuel cell pack unit 20 judges,
When the power determining device 32 of the power generation monitoring control unit 30 judges the output power of the fuel cell pack unit 20
Lower than calibration performance number when, illustrate the performance degradation of the fuel cell pack unit 20, the power generation monitors control unit 30
The recovery adjuster 33 the fuel cell pack unit 20 is carried out by controlling the fuel cell pack recovery device 10
Performance recovery.Certainly, it will be appreciated by those skilled in the art that, the power generation here monitors the structure of control unit 30
Composition is as just citing, and in other embodiments there are also other deformations, present aspect is not limited thereto in this regard.
As shown in Figure 1, the unmanned plane fuel cell recovery system of the invention further includes a control switch 80, it is described
Control switch 80 is connected to the fuel cell pack recovery device 10, can either manually or automatically control to the fuel
Battery pile recovery device 10 carries out switch control.In this embodiment in accordance with the invention, the control switch 80 is implemented as hand
Dynamic control, it will be appreciated by those skilled in the art that, in other embodiments, it may be implemented as automatically controlling, this hair
It is bright to be not limited thereto in this regard.
As shown in Fig. 2, the structure composition of the fuel cell pack recovery device 10 is illustrated.The wherein fuel cell pack
Recovery device 10 includes a resistance element 11, a switching circuit 12 and a fuel cell pack recovery device control unit 13.Institute
It states switching circuit 12 and is connected to the resistance element 11 and the fuel cell pack recovery device control unit 13.The resistance
Property element 11 be effect for transient large current discharge, can be either large-scale power tube of pure resistance etc., when described resistive
When element 11 is implemented as pure resistance, resistance value wants enough small, and range is in 0.1~500 milliohm.The switching circuit 12 is to use
Carry out the on-off of control circuit, metal-oxide-semiconductor, the parallel connection of multiple metal-oxide-semiconductors or relay class component etc. can be implemented as.The fuel cell
Heap recovery device control unit 13 is described in discharge time and control for controlling the fuel cell pack recovery device 10
The on-off of switching circuit 12.
The fuel cell pack unit 20 is connected to the resistance element 11 of the fuel cell pack recovery device 10
And the switching circuit 12.In this preferred embodiment of the invention, the fuel cell pack recovery device control unit
13 can be carried out by manually or automatically control mode.Therefore, the fuel cell pack recovery device of the invention
10 controls are simple, easy to operate, can control or manually control by system.
The fuel cell pack recovery device 10 of the invention it is light-weight, it is small in size to can integrate in fuel cell power generation
In unit, when being arranged at UAV system, it can also save the other performance recovery devices of carrying on ground and auxiliary is set
It is standby, save the overall cost of handling of goods and materials cost and system.
The unmanned plane of the invention is to restore to fill by the fuel cell pack with the principle of fuel cell recovery system
10 are set, the output voltage of the monolithic battery of the fuel cell pack unit 20 is reduced to a voltage threshold before the deadline
Value VFZBelow.Wherein, aforementioned stipulated time range is 100 milliseconds~300 milliseconds, the monolithic electricity of the fuel cell pack unit 20
The voltage range in pond is 0.4~1V, the output voltage threshold value of the monolithic battery of the fuel cell pack unit 20 of performance recovery
VFZRange is in 0.68V~0.45V.When the output voltage of the monolithic battery of the fuel cell pack unit 20 of unmanned plane is lower than this
The oxidation reaction that a threshold value is occurred with post-consumer polymer can be restored to good performance originally.It is carried out again after being spaced a predetermined time
The recovery action in next period.Wherein the range of aforementioned predetermined time is at 300~500 milliseconds.Recovery action repeatedly can
To make the performance of system more excellent.
After unmanned plane of the invention is connected with fuel cell recovery system, the power generation monitoring control unit 30 is controlled
Open the switch of the air feed unit 70, the switch of the cooling system unit 50 and the fuel supply unit 60
Switch, 20 output voltage of fuel cell pack unit, i.e. voltage output VFC。
That is, the power generation monitoring control unit 30 includes a switch controller 34, the switch controller 34 is controlled
Make the switch of the air feed unit 70, the cooling system unit 50 and the fuel supply unit 60.
The power generation monitoring control unit 30 connects the switching circuit 12 in the fuel cell pack recovery device 10.
The fuel cell pack unit 20 carries out high current by the resistance element 11 of the fuel cell pack recovery device 10 and puts
Electricity, before the deadline in the range of i.e. 100 milliseconds~300 milliseconds, the output voltage V of the fuel cell pack unit 20FC
It is lowered to voltage threshold VFZRange hereinafter, under i.e. 0.68V~0.45V.
The fuel cell pack recovery device control unit 13 of the fuel cell pack recovery device 10 controls the resistance
The discharge time that property element 11 is large current discharge.The switch of the fuel cell pack recovery device 10 after the completion of electric discharge
Circuit 12 disconnects.This when, the output voltage of the fuel cell pack unit 20 was restored to normal output voltage VFC。
Further, in one predetermined time of interval within the scope of i.e. 300~500 milliseconds, the fuel cell pack recovery device
10 carry out the recovery action in next period.
The fuel cell pack recovery device 10 periodically carries out recovery action, and repeating recovery action can repeatedly allow
The performance recovery of the unmanned plane fuel cell power generating system is to kilter.
Therefore, the fuel cell pack recovery device of the unmanned plane stack performance recovery system of the invention
10 can in real time restore the fuel cell pack unit 20 in work, bring better experience to user.The combustion
Expect that battery pile recovery device 10 is used as resistive load, there is no the problem of energy feedback.10 quilt of fuel cell pack recovery device
When for UAV system, can ground static state do recovery action and also after unmanned plane takes off find performance degradation when again
The movement of performance recovery is done, so that the selectable leeway of user is bigger, the user experience brought.
According to another aspect of the present invention, a kind of recovery controlling party of unmanned plane fuel cell recovery system is additionally provided
Method, the recovery control method of unmanned plane fuel cell recovery system the following steps are included:
(1000) the power generation monitoring control unit 30 opens the switch of the air feed unit 70, the cooling system
The switch of unit 50 and the switch of the fuel supply unit 60, the fuel cell pack unit 20 generate voltage output VFC；
(2000) the power generation monitoring control unit 30 connects the switch electricity of the fuel cell pack recovery device 10
Road 12；
(3000) the fuel cell pack unit 20 passes through the resistance element of the fuel cell pack recovery device 10
11 execute heavy-current discharge, the output voltage V of the fuel cell pack unit 20FCIt is lowered to voltage threshold VFZRange with
Under；
(4000) the fuel cell pack recovery device control unit 13 control of the fuel cell pack recovery device 10
The resistance element 11 executes the discharge time of heavy-current discharge；And
(5000) switching circuit 12 of the fuel cell pack recovery device 10 is disconnected after the completion of discharging, the combustion
The output voltage of material stack unit 20 is restored to normal voltage output VFC。
Wherein, it is spaced the recovery action for carrying out the next period after a predetermined time (300~500 milliseconds) again.Therefore, it follows
Ring executes the step (1000) to the step (4000), i.e., repeatedly recovery action can repeatedly allow fuel cell power generation to fill
For the performance recovery set to kilter, it is defeated that the output voltage of the fuel cell pack unit 20 can be restored to normal voltage
Out in range.
Wherein, the resistance element 11 of fuel cell pack recovery device 10 described in the step (3000) executes big electricity
The time range for banishing electricity is 100 milliseconds~300 milliseconds.
Wherein, the resistance element 11 of the fuel cell pack recovery device 10 executes the time interval of heavy-current discharge
It is 300~500 milliseconds.
Wherein, the Standard resistance range of the resistance element 11 of the fuel cell pack recovery device 10 is 0.1~500 milli
Europe.
Wherein, the switching circuit 12 is the on-off for control circuit, can be implemented as metal-oxide-semiconductor, multiple metal-oxide-semiconductors simultaneously
Connection or relay class component etc..
Wherein, voltage threshold V in the step (3000)FZRange is in 0.68V~0.45V.
It should be understood by those skilled in the art that foregoing description and the embodiment of the present invention shown in the drawings are only used as illustrating
And it is not intended to limit the present invention.The purpose of the present invention has been fully and effectively achieved.Function and structural principle of the invention exists
It shows and illustrates in embodiment, under without departing from the principle, embodiments of the present invention can have any deformation or modification.
Claims (34)
1. a kind of fuel cell recovery device for unmanned plane fuel cell system, which is characterized in that resistive including at least one
Element, at least a switching circuit and at least a fuel cell pack recovery device control unit, the switching circuit are connected to
The resistance element and the fuel cell pack recovery device control unit, and control circuit on-off, the fuel cell pack
Recovery device control unit controls the discharge time of the resistance element and the on-off of the control switching circuit, described resistive
Element is defeated by the monolithic battery of an at least fuel cell pack unit for unmanned plane fuel cell system by transient large current discharge
Voltage restores to an at least voltage threshold range out.
2. the fuel cell recovery device of unmanned plane fuel cell system is used for as described in claim 1, wherein the voltage
Threshold range is 0.68V~0.45V.
3. the fuel cell recovery device of unmanned plane fuel cell system is used for as described in claim 1, wherein the fuel
It is 100~300 milliseconds that battery recovery device, which executes heavy current discharging time range,.
4. the fuel cell recovery device of unmanned plane fuel cell system is used for as described in claim 1, wherein the fuel
The time interval range that battery recovery device executes heavy-current discharge every time is 300~500 milliseconds.
5. the fuel cell recovery device of unmanned plane fuel cell system is used for as described in claim 1, wherein described resistive
The Standard resistance range of element is 0.1~500 milliohm.
6. such as the fuel cell recovery device as claimed in any one of claims 1 to 5 for unmanned plane fuel cell system, wherein
The resistance element is pure resistance.
7. such as the fuel cell recovery device as claimed in any one of claims 1 to 5 for unmanned plane fuel cell system, wherein
The resistance element is power tube.
8. such as the fuel cell recovery device as claimed in any one of claims 1 to 5 for unmanned plane fuel cell system, wherein
The switching circuit is metal-oxide-semiconductor or the parallel connection of multiple metal-oxide-semiconductors or relay class component.
9. a kind of fuel cell pack recovery system for unmanned plane, which is characterized in that including an at least fuel generating device with
And an at least fuel cell pack recovery device, wherein the input terminal of the fuel cell pack recovery device is connected to the fuel
The output end of an at least fuel cell pack unit for power generator, the fuel cell pack recovery device is by executing moment big electricity
Electricity is banished to restore the monolithic battery output voltage of the fuel cell pack unit to an at least voltage threshold range.
10. the fuel cell pack recovery system of unmanned plane is used for as claimed in claim 9, wherein the voltage threshold range is
0.68V~0.45V.
11. the fuel cell pack recovery system of unmanned plane is used for as claimed in claim 9, wherein the fuel cell restores dress
Setting and executing heavy current discharging time range is 100~300 milliseconds.
12. the fuel cell pack recovery system of unmanned plane is used for as claimed in claim 9, wherein the fuel cell restores dress
Setting and executing the time interval range of heavy-current discharge every time is 300~500 milliseconds.
13. the fuel cell pack recovery system of unmanned plane is used for as claimed in claim 9, wherein the fuel cell restores dress
It sets including an at least resistance element, at least a switching circuit and an at least fuel cell pack recovery device control unit, it is described
Switching circuit is connected to the resistance element and the fuel cell pack recovery device control unit, and control circuit is logical
Disconnected, the fuel cell pack recovery device control unit controls discharge time and the control switch electricity of the resistance element
The on-off on road, the resistance element execute transient large current discharge.
14. the fuel cell pack recovery system of unmanned plane is used for as claimed in claim 13, wherein the resistance of the resistance element
Value range is 0.1~500 milliohm.
15. the fuel cell pack recovery system of unmanned plane is used for as claimed in claim 13, wherein the resistance element is pure
Resistance or power tube.
16. the fuel cell pack recovery system of unmanned plane is used for as claimed in claim 13, wherein the switching circuit is MOS
Pipe or the parallel connection of multiple metal-oxide-semiconductors or relay class component.
17. the fuel cell pack recovery system for unmanned plane as described in any in claim 9-16, wherein the fuel
Power generator further includes at least one power generation monitoring control unit, and the power generation monitoring control unit monitors the fuel cell pack list
The total output electric current and voltage of member decline when the output power of the fuel cell pack unit performance occurs lower than the performance number of calibration
When subtracting, power generation monitoring control unit by control the fuel cell pack recovery device to the fuel cell pack unit into
Row performance recovery.
18. the fuel cell pack recovery system of unmanned plane is used for as claimed in claim 17, wherein power generation monitoring control
Unit includes an at least sensor, and the sensor of the power generation monitoring control unit monitors the fuel cell pack list in real time
Member, and obtain the total output current parameters and voltage parameter of the fuel cell pack unit.
19. the fuel cell pack recovery system of unmanned plane is used for as claimed in claim 18, wherein power generation monitoring control
Unit further includes an at least power determining device, and the power determining device of the power generation monitoring control unit is according to the sensor
The performance number whether parameter value of Real-time Feedback is lower than calibration to the output power of the fuel cell pack unit judges.
20. the fuel cell pack recovery system of unmanned plane is used for as claimed in claim 19, wherein power generation monitoring control
Unit further includes at least one recovery adjuster, when performance number of the output power of the fuel cell pack unit lower than calibration,
The recovery adjuster carries out performance recovery to the fuel cell pack unit by controlling the fuel cell pack recovery device.
21. the fuel cell pack recovery system of unmanned plane is used for as claimed in claim 17, wherein described is used for unmanned plane
Fuel cell pack recovery system further include an at least driving unit, the driving unit is connected to the power generation monitoring control
Unit.
22. the fuel cell pack recovery system of unmanned plane is used for as claimed in claim 17, wherein the fuel generating device
It further include an at least cooling system unit, at least an air feed unit and an at least fuel supply unit, the cooling system
System unit is connected to the fuel cell pack unit, and the air feed unit provides air to the fuel cell pack list
Member, the fuel supply unit provide fuel to the fuel cell pack unit.
23. the fuel cell pack recovery system of unmanned plane is used for as claimed in claim 22, wherein power generation monitoring control
Unit further includes an at least switch controller, controls the air feed unit, the cooling system unit and the fuel
The switch of feed unit.
24. be used for the fuel cell pack recovery system of unmanned plane as claimed in claim 9, wherein described for unmanned plane
Fuel cell pack recovery system further includes an at least control switch, and the control switch is connected to the fuel cell pack and restores
Device, and switch control is carried out to the fuel cell pack recovery device.
25. a kind of unmanned plane recovery control method of fuel cell recovery system, which comprises the following steps:
(A) an at least resistance element for an at least fuel cell pack recovery device executes heavy-current discharge, at least a fuel cell
The output voltage of heap unit is lowered at least range of a voltage threshold or less；
(B) an at least fuel cell pack recovery device control unit for the fuel cell pack recovery device controls the resistive member
Part executes the discharge time of heavy-current discharge；And
(C) output voltage of the fuel cell pack unit is restored in normal voltage output range.
26. the unmanned plane as claimed in claim 25 recovery control method of fuel cell recovery system, wherein the step
(A) at least one power generation monitoring control unit is further comprised the steps of: before opens at least switch of an air feed unit, at least one cold
But the switch of system unit and the switch of an at least fuel supply unit, fuel cell pack unit generate an at least voltage output.
27. the unmanned plane as claimed in claim 25 recovery control method of fuel cell recovery system, wherein the step
(A) further comprised the steps of: before ought at least one power generation monitoring control unit monitor the output power of fuel cell pack unit and be lower than
When demarcating performance number, an at least switching circuit for the fuel cell pack recovery device is connected.
28. the unmanned plane as claimed in claim 27 recovery control method of fuel cell recovery system, wherein the step
(D) switching circuit that the fuel cell pack recovery device after the completion of discharging is further comprised the steps of: before is disconnected.
29. the unmanned plane as claimed in claim 25 recovery control method of fuel cell recovery system, wherein described resistive
The Standard resistance range of element is 0.1~500 milliohm.
30. the unmanned plane as claimed in claim 25 recovery control method of fuel cell recovery system, wherein the fuel
The time range that battery pile recovery device executes heavy-current discharge is 100 milliseconds~300 milliseconds.
31. the unmanned plane as claimed in claim 25 recovery control method of fuel cell recovery system, wherein the fuel
The time interval that battery pile recovery device executes heavy-current discharge is 300~500 milliseconds.
32. the unmanned plane as claimed in claim 25 recovery control method of fuel cell recovery system, wherein the voltage
Threshold range is 0.68V~0.45V.
33. the unmanned plane as claimed in claim 25 recovery control method of fuel cell recovery system, wherein described resistive
Element is pure resistance or power tube.
34. the recovery control method of the unmanned plane fuel cell recovery system as described in claim 27 or 28, wherein described
Switching circuit is metal-oxide-semiconductor or the parallel connection of multiple metal-oxide-semiconductors or relay class component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810383616.XA CN110416579A (en) | 2018-04-26 | 2018-04-26 | Unmanned plane stack performance recovery system and its recovery device and recovery control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810383616.XA CN110416579A (en) | 2018-04-26 | 2018-04-26 | Unmanned plane stack performance recovery system and its recovery device and recovery control method |
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