CN108418289A - Hydrogen fuel cell hybrid dynamic system - Google Patents
Hydrogen fuel cell hybrid dynamic system Download PDFInfo
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- CN108418289A CN108418289A CN201810500953.2A CN201810500953A CN108418289A CN 108418289 A CN108418289 A CN 108418289A CN 201810500953 A CN201810500953 A CN 201810500953A CN 108418289 A CN108418289 A CN 108418289A
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- 239000000446 fuel Substances 0.000 title claims abstract description 95
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 239000001257 hydrogen Substances 0.000 title claims abstract description 89
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 89
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 35
- 239000004065 semiconductor Substances 0.000 claims description 160
- 239000003381 stabilizer Substances 0.000 claims description 23
- 230000009467 reduction Effects 0.000 claims description 21
- 230000005611 electricity Effects 0.000 claims description 19
- 238000002955 isolation Methods 0.000 claims description 18
- 238000007600 charging Methods 0.000 claims description 7
- 230000004044 response Effects 0.000 abstract description 5
- 230000001052 transient effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000000031 electric organ Anatomy 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/567—Circuits characterised by the use of more than one type of semiconductor device, e.g. BIMOS, composite devices such as IGBT
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Fuel Cell (AREA)
Abstract
A kind of hydrogen fuel cell hybrid dynamic system, including：Hydrogen fuel cell device, for producing electricl energy；First one-way conduction module, hydrogen fuel cell device provide electric energy by the first one-way conduction module to power load；Lithium battery group, for when hydrogen fuel cell device cannot be satisfied power load demand, electric energy to be provided to power load；Second one-way conduction module, lithium battery group provide electric energy by the second one-way conduction module to power load；The output end of first one-way conduction module is connected to the output end of the second one-way conduction module.By the first one-way conduction module and the second one-way conduction module with one-way conduction characteristic, when hydrogen fuel cell device meets power load demand, hydrogen fuel cell device is powered to power load；When hydrogen fuel cell device cannot be satisfied power load demand, hydrogen fuel cell device, lithium battery group are powered to power load simultaneously, to meet the transient response demand of power load.
Description
Technical field
The present invention relates to Fuel Cell Control technologies, more particularly to a kind of hydrogen fuel cell hybrid dynamic system.
Background technology
Fuel cell is a kind of chemical devices chemical energy possessed by fuel being directly changed into electric energy, also known as electrochemistry
Electric organ.It is the 4th kind of generation technology after hydroelectric generation, heat energy power-generating and nuclear electric power generation.Since fuel cell is
The chemical energy of fuel is converted into electric energy by electrochemical reaction, is not limited by Carnot cycle effect, therefore efficient；Separately
Outside, fuel cell-use fuel and oxygen are as reaction raw materials, while not having mechanical transmission component, therefore raw material of not making an uproar, and give off
Pernicious gas it is few.However, fuel cell belongs to energy output type battery, dynamic response is very slow, and it is negative to cannot be satisfied electricity consumption
The transient power of load responds demand.
Invention content
Based on this, it is necessary to provide a kind of hydrogen fuel cell hybrid dynamic system meeting power load dynamic power demand.
A kind of hydrogen fuel cell hybrid dynamic system, for powering to power load, the hydrogen fuel cell hybrid dynamic system includes：
Hydrogen fuel cell device, for producing electricl energy；
First one-way conduction module, the hydrogen fuel cell device is by the first one-way conduction module to power load
Electric energy is provided；
Lithium battery group, for when the hydrogen fuel cell device cannot be satisfied power load demand, being carried to power load
For electric energy；And
Second one-way conduction module, the lithium battery group provide electricity by the second one-way conduction module to power load
Energy；The output end of the first one-way conduction module is connected to the output end of the second one-way conduction module.
Above-mentioned hydrogen fuel cell hybrid dynamic system passes through the first one-way conduction module and the second list with one-way conduction characteristic
To conduction module, when hydrogen fuel cell device meets power load demand, hydrogen fuel cell device is powered to power load；When
When hydrogen fuel cell device cannot be satisfied power load demand, hydrogen fuel cell device, lithium battery group are supplied to power load simultaneously
Electricity, to meet the transient response demand of power load.
The first one-way conduction module is equipped with the first electrode input end and the first cathode in one of the embodiments,
Output end；First electrode input end of the first one-way conduction module connects the anode output of the hydrogen fuel cell device
End, the first cathode output end of the first one-way conduction module are connected to power load；The first one-way conduction module packet
Include resistance R1, capacitance C1, metal-oxide-semiconductor Q1 and the first diode control U1；It is defeated that the first diode control U1 is equipped with voltage
Enter pin, source connection pin, grid end connection pin, drain terminal connection pin and grounding pin；The input terminal of the metal-oxide-semiconductor Q1
First electrode input end is connected, the output end of the metal-oxide-semiconductor Q1 connects first cathode output end；One or two pole
The voltage input pin of tube controller U1 connects first electrode input end, and the source of the first diode control U1 connects
It connects pin and connects first electrode input end, the grid end connection pin of the first diode control U1 connects the MOS
The drain terminal connection pin of the control terminal of pipe Q1, the first diode control U1 connects first cathode output end；It is described
The output end of metal-oxide-semiconductor Q1 is grounded by the capacitance C1 and resistance R1；The ground terminal of the first diode control U1
It is grounded by the resistance R1.
The first one-way conduction module further includes voltage-stabiliser tube D1 in one of the embodiments, the voltage-stabiliser tube D1's
Cathode connects the voltage input pin of the first diode control U1, the anode connection the described 1st of the voltage-stabiliser tube D1
The ground terminal of pole pipe controller U1；The first one-way conduction module further includes voltage-stabiliser tube D2, and the cathode of the voltage-stabiliser tube D2 connects
The control terminal of the metal-oxide-semiconductor Q1 is connect, the anode of the voltage-stabiliser tube D2 connects the input terminal of the metal-oxide-semiconductor Q1.
Further include the first normal open module in one of the embodiments,；The first one-way conduction module is being equipped with first just
Pole input terminal and the first cathode output end；First normal open is connected between first cathode output end and power load
Module.
The first normal open module includes the first primary driving unit, the driving of the first rear class in one of the embodiments,
Unit and metal-oxide-semiconductor Q7；Described first primary driving unit is amplified external input signal, and the first rear class driving is single
Member couples the output control signal isolation of the described first primary driving unit to the control terminal of the metal-oxide-semiconductor Q7, the metal-oxide-semiconductor
Accesses of the Q7 between the first one-way conduction module and power load controls.
The described first primary driving unit is equipped with the first normal open control terminal in one of the embodiments,；At the beginning of described first
Grade driving unit includes resistance R3, resistance R4, resistance R5, resistance R6, capacitance C3, capacitance C4 and metal-oxide-semiconductor Q8；The resistance R3,
The resistance R4 and the capacitance C3 are sequentially connected in series；The first normal open control terminal connects the resistance R3 and resistance R4
Between node, node between the resistance R3 and the resistance R4 is also grounded by the capacitance C4, the resistance R3 with
The resistance R3 is connected between the first rear class driving unit；The resistance R5 is in parallel with the capacitance C3；The resistance R4
Node between the capacitance C3 connect the control terminal of the metal-oxide-semiconductor Q8；The input terminal connection described first of the metal-oxide-semiconductor Q8
Rear class driving unit；The first rear class driving unit includes capacitance C5, diode D5 and chip U3；The chip U3 is equipped with
Negative electrode pin, negative electrode pin, power pins, recommending output mode pin and grounding pin；The negative electrode pin of the chip U3, cathode
The described first primary driving unit of pin connection；The recommending output mode pin of the chip U3 connects the cathode of the diode D5,
The anode of the diode D5 connects the control terminal of the metal-oxide-semiconductor Q7；The metal-oxide-semiconductor Q7 input terminals connection described first is unidirectionally led
First cathode output end of logical module；The metal-oxide-semiconductor Q7 output ends connect power load.
Further include voltage reduction module in one of the embodiments, the voltage reduction module connects the hydrogen fuel cell device
And the lithium battery group, the voltage reduction module are converted to the output voltage of the hydrogen fuel cell device and the lithium battery group
First DC voltage, and exported to the described first primary driving unit.
The voltage reduction module includes resistance R15, resistance R16, resistance R17, resistance R18, electricity in one of the embodiments,
Hold C11, capacitance C12, capacitance C13, capacitance C14, diode D9, diode D10 and chip U5；The chip U5 is equipped with power supply
Input pin, it is logical when setting pin, cutout setting pin, grounding pin, builtin voltage output pin, capacitance input pin, open
Close output pin and feedback input pin；Connect between the power input pin and the hydrogen fuel cell device of the chip U5
The diode D9 is met, the diode D10 is connected between the power input pin and the lithium battery group of the chip U5；Institute
State chip U5 power input pin and it is logical when setting pin between connect the resistance R15；The cutout of the chip U5 is set
Pin is grounded by the resistance R16, the grounding pin ground connection of the chip U5；The builtin voltage output pin of the chip U5
It is grounded by the capacitance C12；The capacitance is connected between the capacitance input pin and switch output pin of the chip U5
C13；The switch output pin of the chip U5 connects the inductance L1；It is connected in series between one end and ground of the inductance L1
The resistance R17 and resistance R18, the node between the resistance R17 and the resistance R18 connect the anti-of the chip U5
Present input pin.
Further include boosting isolation module in one of the embodiments, the boosting isolation module connects the metal-oxide-semiconductor Q7
Output end, the boosting isolation module is also connected with the output end of the voltage reduction module；The boosting isolation module passes through to institute
The output voltage for stating voltage reduction module is coupled, and the output voltage being isolated with the voltage reduction module is exported in output end.
Further include charging adjustment module in one of the embodiments, the charging adjustment module is electric by the hydrogen fuel
The output voltage of pool device is adjusted to adapt to the voltage of the lithium battery group and be exported to the lithium battery group.
Description of the drawings
Fig. 1 is the structure chart of the hydrogen fuel cell hybrid dynamic system of the preferred embodiment of the present invention；
Fig. 2A is the circuit diagram of the first one-way conduction module shown in FIG. 1；
Fig. 2 B are the circuit diagram of the second one-way conduction module shown in FIG. 1；
Fig. 3 is the structure chart of the hydrogen fuel cell hybrid dynamic system of another embodiment；
Fig. 4 A are the circuit diagram of the first normal open module shown in Fig. 3；
Fig. 4 B are the circuit diagram of the second normal open module shown in Fig. 3；
Fig. 5 is the circuit diagram of voltage reduction module shown in Fig. 3 and buck isolation module.
Specific implementation mode
It to facilitate the understanding of the present invention, below will be to invention is more fully described.But the present invention can be to be permitted
Mostly different form is realized, however it is not limited to embodiment described herein.Make on the contrary, purpose of providing these embodiments is
It is more thorough and comprehensive to the understanding of the disclosure.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the present invention
The normally understood meaning of technical staff is identical.Used term is intended merely to description tool in the description of the invention herein
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
It please refers to Fig.1 to Fig. 2 B, for the hydrogen fuel cell hybrid dynamic system 100 of a better embodiment of the invention, is used for profit
The electric energy caused by hydrogen fuel cell is powered to power load.The hydrogen fuel cell hybrid dynamic system 100 includes
Hydrogen fuel cell device 10, for producing electricl energy；
First one-way conduction module 20, hydrogen fuel cell device 10 are carried by the first one-way conduction module 20 to power load
For electric energy；
Lithium battery group 30, for when hydrogen fuel cell device 10 cannot be satisfied power load demand, being carried to power load
For electric energy；And
Second one-way conduction module 40, lithium battery group 30 provide electricity by the second one-way conduction module 40 to power load
Energy；The output end of first one-way conduction module 20 is connected to the output end of the second one-way conduction module 40；
By the first one-way conduction module 20 and the second one-way conduction module 40 with one-way conduction characteristic, work as hydrogen fuel
When cell apparatus 10 meets power load demand, hydrogen fuel cell device 10 is powered to power load；Work as hydrogen fuel cell device
10 when cannot be satisfied power load demand, and hydrogen fuel cell device 10, lithium battery group 30 are powered to power load simultaneously, to full
The foot transient response demand of power load.
Specifically, defeated due to hydrogen fuel cell device 10 when hydrogen fuel cell device 10 meets power load demand
Going out voltage not dragged down by power load, the output voltage of hydrogen fuel cell device 10 is more than the output voltage of lithium battery group 30,
First one-way conduction module 20 is connected, the cut-off of the second one-way conduction module 40, only negative to electricity consumption by hydrogen fuel cell device 10
It carries and electric energy is provided；When hydrogen fuel cell device 10 cannot be satisfied power load demand, the output electricity of hydrogen fuel cell device 10
It is pressed in when dropping to close with the output voltage of lithium battery group 30, the first one-way conduction module 20, the second one-way conduction module 40
Conducting simultaneously turns on, to be powered simultaneously to power load using hydrogen fuel cell device 10, lithium battery group 30.
Fig. 2A is please referred to, specifically, the first one-way conduction module 20 is equipped with the first electrode input end and the first cathode exports
End；The cathode output end of the first electrode input end connection hydrogen fuel cell device 10 of first one-way conduction module 20, first is single
It is connected to power load to the first cathode output end of conduction module 20；
Further, to reduce the pressure drop of 20 forward conduction of the first one-way conduction module, to reduce power attenuation, first is single
Include resistance R1, capacitance C1, metal-oxide-semiconductor Q1 and the first diode control U1 to conduction module 20；First diode control U1
Equipped with voltage input pin, source connection pin, grid end connection pin, drain terminal connection pin and grounding pin；Metal-oxide-semiconductor Q1's
Input terminal connects the first electrode input end, and the output end of metal-oxide-semiconductor Q1 connects the first cathode output end；First diode control U1
Voltage input pin connect the first electrode input end, the first diode control U1 source connection pin connection first anode
Input terminal, the control terminal of the grid end connection pin connection metal-oxide-semiconductor Q1 of the first diode control U1, the first diode control U1
Drain terminal connection pin connect the first cathode output end；The output end of metal-oxide-semiconductor Q1 passes through capacitance C1 and resistance R1 ground connection；One or two
The ground terminal of pole pipe controller U1 is grounded by resistance R1.
When, there are when potential difference, the first diode control U1 is logical between the first electrode input end and the first cathode output end
Overvoltage input pin detects potential difference, then connects pin by grid end and source connects pin and provided partially to metal-oxide-semiconductor Q1
Setting voltage makes metal-oxide-semiconductor Q1 be connected and maintains lower conduction voltage drop, the pressure drop after metal-oxide-semiconductor Q1 conductings remote by bias voltage adjustment
In the conduction voltage drop of general-purpose diode, to effectively reduce electric energy loss.
To avoid the voltage of the voltage input pin of the first diode control U1 excessive, the first one-way conduction module 20 is also
Including voltage-stabiliser tube D1, the cathode of voltage-stabiliser tube D1 connects the voltage input pin of the first diode control U1, the sun of voltage-stabiliser tube D1
Pole connects the ground terminal of the first diode control U1；The voltage between input terminal and control terminal to avoid metal-oxide-semiconductor Q1 is excessive,
Cause metal-oxide-semiconductor Q1 impaired, the first one-way conduction module 20 further includes voltage-stabiliser tube D2, the cathode connection metal-oxide-semiconductor Q1's of voltage-stabiliser tube D2
Control terminal, the input terminal of the anode connection metal-oxide-semiconductor Q1 of voltage-stabiliser tube D2.
For improve the first one-way conduction module 20 through-current capability, the first one-way conduction module 20 further include metal-oxide-semiconductor Q2,
The grid end that control terminal, the control terminal of metal-oxide-semiconductor Q3 of metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q2 connect the first diode control U1 connects pin；
The source that the input terminal of metal-oxide-semiconductor Q2, the input terminal of metal-oxide-semiconductor Q3 connect the first diode control U1 connects pin；Metal-oxide-semiconductor Q2's
Output end, metal-oxide-semiconductor Q3 output end connect the first diode control U1 drain terminal connect pin.
Fig. 2 B are please referred to, specifically, the second one-way conduction module 40 is equipped with the second electrode input end and the second cathode exports
End；The cathode output end of the second electrode input end connection hydrogen fuel cell device 10 of second one-way conduction module 40, second is single
It is connected to power load to the second cathode output end of conduction module 40；
Further, to reduce the pressure drop of 40 forward conduction of the second one-way conduction module, to reduce power attenuation, second is single
Include resistance R2, capacitance C2, metal-oxide-semiconductor Q4 and the second diode control U2 to conduction module 40；Second diode control U2
Equipped with voltage input pin, source connection pin, grid end connection pin, drain terminal connection pin and grounding pin；Metal-oxide-semiconductor Q4 is
Metal-oxide-semiconductor；The input terminal of metal-oxide-semiconductor Q4 connects the second electrode input end, and the output end of metal-oxide-semiconductor Q4 connects the second cathode output end；The
The voltage input pin of two diode control U2 connects the second electrode input end, the source connection of the second diode control U2
Pin connects the second electrode input end, and the grid end connection pin of the second diode control U2 connects the control terminal of metal-oxide-semiconductor Q4, the
The drain terminal connection pin of two diode control U2 connects the second cathode output end；The output end of metal-oxide-semiconductor Q4 by capacitance C2 and
Resistance R2 ground connection；The ground terminal of second diode control U2 is grounded by resistance R2.
When, there are when potential difference, the second diode control U2 is logical between the second electrode input end and the second cathode output end
Overvoltage input pin detects potential difference, then connects pin by grid end and source connects pin and provided partially to metal-oxide-semiconductor Q4
Setting voltage makes metal-oxide-semiconductor Q4 be connected and maintains lower conduction voltage drop, the pressure drop after metal-oxide-semiconductor Q4 conductings remote by bias voltage adjustment
For the conduction voltage drop of general-purpose diode, to effectively reduce electric energy loss.
To avoid the voltage of the voltage input pin of the second diode control U2 excessive, the second one-way conduction module 40 is also
Including voltage-stabiliser tube D3, the cathode of voltage-stabiliser tube D3 connects the voltage input pin of the second diode control U2, the sun of voltage-stabiliser tube D3
Pole connects the ground terminal of the second diode control U2；The voltage between input terminal and control terminal to avoid metal-oxide-semiconductor Q4 is excessive,
Cause metal-oxide-semiconductor Q4 impaired, the second one-way conduction module 40 further includes voltage-stabiliser tube D4, the cathode connection metal-oxide-semiconductor Q4's of voltage-stabiliser tube D4
Control terminal, the input terminal of the anode connection metal-oxide-semiconductor Q4 of voltage-stabiliser tube D4.
For improve the second one-way conduction module 40 through-current capability, the second one-way conduction module 40 further include metal-oxide-semiconductor Q5,
The grid end that control terminal, the control terminal of metal-oxide-semiconductor Q6 of metal-oxide-semiconductor Q6, metal-oxide-semiconductor Q5 connect the second diode control U2 connects pin；
The source that the input terminal of metal-oxide-semiconductor Q5, the input terminal of metal-oxide-semiconductor Q6 connect the second diode control U2 connects pin；Metal-oxide-semiconductor Q5's
Output end, metal-oxide-semiconductor Q6 output end connect the second diode control U2 drain terminal connect pin.
Please refer to Fig. 3 and Fig. 4 A, for when hydrogen fuel cell device 10 occurs abnormal, stop hydrogen fuel cell device 10 to
Power load is powered, and hydrogen fuel cell hybrid dynamic system 100 further includes the first normal open module 50, the first one-way conduction module 20 and use
The first normal open module 50 is connected between electric loading.
In normal state, under the first normal open module 50 is in the conduction state；When exception occurs in hydrogen fuel cell device 10
When, the first normal open module 50 cut-off, to make hydrogen fuel cell device 10 stop exporting electric energy to power load.
In the present embodiment, the first normal open module 50 includes the first primary driving unit 51, the first rear class driving unit
52 and metal-oxide-semiconductor Q7；First primary driving unit 51 is amplified external input signal, and the first rear class driving unit 52 is by the
The output control signal isolation of one primary driving unit 51 is coupled to the control terminal of metal-oxide-semiconductor Q7, Q7 pairs of the first one-way conduction of metal-oxide-semiconductor
Access between module 20 and power load is controlled.
First primary driving unit 51 is equipped with the first normal open control terminal；First primary driving unit 51 includes resistance R3, electricity
Hinder R4, resistance R5, resistance R6, capacitance C3, capacitance C4 and metal-oxide-semiconductor Q8；Resistance R3, resistance R4 and capacitance C3 are sequentially connected in series；The
One normal open control terminal connects the node between resistance R3 and resistance R4, and the node between resistance R3 and resistance R4 also passes through capacitance C4
Ground connection connects resistance R3 between resistance R3 and the first rear class driving unit 52；Resistance R5 is in parallel with capacitance C3；Resistance R4 and capacitance
The control terminal of node connection metal-oxide-semiconductor Q8 between C3；The input terminal of metal-oxide-semiconductor Q8 connects the first rear class driving unit 52.Resistance R3
The first DC voltage of input of node between resistance 6.
First rear class driving unit 52 includes capacitance C5, diode D5 and chip U3；Chip U3 is equipped with negative electrode pin, the moon
Pole pin, power pins, recommending output mode pin and grounding pin；The negative electrode pin of chip U3, negative electrode pin connection first are primary
Driving unit 51；The cathode of the recommending output mode pin connection diode D5 of chip U3, the anode connection metal-oxide-semiconductor Q7's of diode D5
Control terminal；Metal-oxide-semiconductor Q7 input terminals connect the second cathode output end of the first one-way conduction module 20；Metal-oxide-semiconductor Q7 output ends connect
Power load.The power pins of chip U3 input the second DC voltage.
Specifically, the negative electrode pin of chip U3 connects resistance R6, the input of the negative electrode pin connection metal-oxide-semiconductor Q8 of chip U3
End.In normal state, the first normal open control terminal inputs high potential, and metal-oxide-semiconductor Q8 is made to be connected, and the optocoupler signal inside chip U3 drives
In internal switching between the power pins and recommending output mode pin of dynamic chip U3, to make the recommending output mode pin of chip U3 pass through
Diode D5 enables metal-oxide-semiconductor Q7 be connected to metal-oxide-semiconductor Q7 output driving level, realizes hydrogen fuel cell device 10 to power load
Electric current is supplied；Diode D5 produces reverse-conducting pressure drop, excessive so as to avoid the control terminal voltage of diode Q7.When hydrogen fires
When expecting that cell apparatus 10 breaks down, the first normal open control terminal inputs low potential, metal-oxide-semiconductor Q8 cut-offs, the recommending output mode of chip U3
End output low level, makes metal-oxide-semiconductor Q7 end, to the access between the first one-way conduction module 20 of cut-out and power load.
Further, to avoid the turn off process of metal-oxide-semiconductor Q7 too fast, cause to generate high pointing between input terminal and output end
Peak punctures metal-oxide-semiconductor Q7 and metal-oxide-semiconductor Q7 is made to damage, and the first normal open module 50 further includes the first pulsed discharge unit 53, the first pulse
Discharge cell 53 includes resistance R13, resistance R14, capacitance C10, diode D8 and metal-oxide-semiconductor Q14；The recommending output mode of chip U3 is drawn
Foot connects the control terminal of metal-oxide-semiconductor Q14, and resistance R14 is connected between the input terminal and the input terminal of metal-oxide-semiconductor Q7 of metal-oxide-semiconductor Q14；Metal-oxide-semiconductor
It is connected in series with resistance R13 and capacitance C10 between the control terminal and the output end of metal-oxide-semiconductor Q14 of Q14；Resistance R13 and capacitance C10
Between node connection diode D8 cathode, the control terminal of the anode connection metal-oxide-semiconductor Q7 of diode D8；When recommending for chip U3
When output pin exports high level, metal-oxide-semiconductor Q14 conductings, while capacitance C10 is charged by resistance R13；When recommending for chip U3 is defeated
When going out pin and being converted to output low level, metal-oxide-semiconductor Q7 shutdown, since the voltage of capacitance C10 acts on, metal-oxide-semiconductor Q14 is delayed to turn off,
High pressure between the input terminal and output end of metal-oxide-semiconductor Q7 is by resistance R14 and metal-oxide-semiconductor Q14 releases, to avoid metal-oxide-semiconductor Q7 from hitting
Wear damage.
To keep the through-current capability of the first normal open module 50 corresponding with the first one-way conduction module 20, the first normal open module 50 is also
Including metal-oxide-semiconductor Q10 and metal-oxide-semiconductor Q11；The input terminal of the input terminal of metal-oxide-semiconductor Q10, the input terminal connection metal-oxide-semiconductor Q7 of metal-oxide-semiconductor Q11；
The output end of the output end of metal-oxide-semiconductor Q10, the output end connection metal-oxide-semiconductor Q7 of metal-oxide-semiconductor Q11；The control terminal of metal-oxide-semiconductor Q10, metal-oxide-semiconductor
The anode of the control terminal connection diode D5 of Q11.
Fig. 3 and Fig. 4 B are please referred to, are supplied to power load when lithium battery group 30 occurs abnormal, to stop lithium battery group 30
Electricity, hydrogen fuel cell hybrid dynamic system 100 further includes the second normal open module 60, between the second one-way conduction module 40 and power load
It is connected with the second normal open module 60.
In normal state, under the second normal open module 60 is in the conduction state；When lithium battery group 30 occurs abnormal, second
Normal open module 60 ends, to make lithium battery group 30 stop exporting electric energy to power load.
In the present embodiment, the second normal open module 60 includes the second primary driving unit 61, the second rear class driving unit
62 and metal-oxide-semiconductor Q12；Second primary driving unit 61 is amplified external input signal, and the second rear class driving unit 62 is by the
The output control signal isolation of two primary driving units 61 is coupled to the control terminal of metal-oxide-semiconductor Q12, and Q12 pairs second of metal-oxide-semiconductor is unidirectionally led
Logical access between module 40 and power load is controlled.
Second primary driving unit 61 is equipped with the second normal open control terminal；Second primary driving unit 61 includes resistance R9, electricity
Hinder R10, resistance R11, resistance R12, capacitance C7, capacitance C8 and metal-oxide-semiconductor Q13；Resistance R9, resistance R10 and capacitance C7 go here and there successively
Connection；Second normal open control terminal connects the node between resistance R9 and resistance R10, and the node between resistance R9 and resistance R10 is also logical
Capacitance C8 ground connection is crossed, resistance R9 is connected between resistance R9 and the second rear class driving unit 62；Resistance R11 is in parallel with capacitance C7；Electricity
Hinder the control terminal of the node connection metal-oxide-semiconductor Q13 between R10 and capacitance C7；The input terminal of metal-oxide-semiconductor Q13 connects the driving of the second rear class
Unit 62.Node between resistance R9 and resistance 6 inputs the first DC voltage.
Second rear class driving unit 62 includes capacitance C9, diode D7 and chip U4；Chip U4 is equipped with negative electrode pin, the moon
Pole pin, power pins, recommending output mode pin and grounding pin；The negative electrode pin of chip U4, negative electrode pin connection second are primary
Driving unit 61；The cathode of the recommending output mode pin connection diode D7 of chip U4, the anode connection metal-oxide-semiconductor Q12 of diode D7
Control terminal；Metal-oxide-semiconductor Q12 input terminals connect the second cathode output end of the second one-way conduction module 40；Metal-oxide-semiconductor Q12 output ends
Connect power load.The power pins of chip U4 input the second DC voltage.
Specifically, the negative electrode pin of chip U4 connects resistance R12, the input of the negative electrode pin connection metal-oxide-semiconductor Q13 of chip U4
End.In normal state, the second normal open control terminal inputs high potential, and metal-oxide-semiconductor Q13 is made to be connected, the optocoupler signal inside chip U4
It is connected between the power pins and recommending output mode pin of driving chip U4, to make the recommending output mode pin of chip U4 pass through two poles
Pipe D7 enables metal-oxide-semiconductor Q12 be connected to metal-oxide-semiconductor Q12 output driving level, realizes electricity of the hydrogen fuel cell device 10 to power load
Stream supply；Diode D7 produces reverse-conducting pressure drop, excessive so as to avoid the control terminal voltage of diode Q12.When hydrogen fires
When expecting that cell apparatus 10 breaks down, the second normal open control terminal inputs low potential, metal-oxide-semiconductor Q13 cut-offs, the recommending output mode of chip U4
End output low level, makes metal-oxide-semiconductor Q12 end, to the access between the second one-way conduction module 40 of cut-out and power load.
Further, to avoid the turn off process of metal-oxide-semiconductor Q12 too fast, cause to generate high pressure between input terminal and output end
Spike punctures metal-oxide-semiconductor Q12 and metal-oxide-semiconductor Q12 is made to damage, and the second normal open module 60 further includes the second pulsed discharge unit 63, and second
Pulsed discharge unit 63 includes resistance R13, resistance R14, capacitance C10, diode D8 and metal-oxide-semiconductor Q14；Recommending for chip U4 is defeated
The control terminal for going out pin connection metal-oxide-semiconductor Q14, connects resistance R14 between the input terminal and the input terminal of metal-oxide-semiconductor Q12 of metal-oxide-semiconductor Q14；
It is connected in series with resistance R13 and capacitance C10 between the control terminal and the output end of metal-oxide-semiconductor Q14 of metal-oxide-semiconductor Q14；Resistance R13 and electricity
Hold the cathode of the node connection diode D8 between C10, the control terminal of the anode connection metal-oxide-semiconductor Q12 of diode D8；As chip U4
Recommending output mode pin output high level when, metal-oxide-semiconductor Q14 conducting, while capacitance C10 is charged by resistance R13；When chip U4's
When recommending output mode pin is converted to output low level, metal-oxide-semiconductor Q12 shutdowns, since the voltage of capacitance C10 acts on, metal-oxide-semiconductor Q14 prolongs
Shutdown late, the high pressure between the input terminal and output end of metal-oxide-semiconductor Q12 is by resistance R14 and metal-oxide-semiconductor Q14 releases, to avoid
Metal-oxide-semiconductor Q12 punch through damage.
To keep the through-current capability of the second normal open module 60 corresponding with the second one-way conduction module 40, the second normal open module 60 is also
Including metal-oxide-semiconductor Q15 and metal-oxide-semiconductor Q16；The input terminal of the input terminal of metal-oxide-semiconductor Q15, the input terminal connection metal-oxide-semiconductor Q12 of metal-oxide-semiconductor Q16；
The output end of the output end of metal-oxide-semiconductor Q15, the output end connection metal-oxide-semiconductor Q12 of metal-oxide-semiconductor Q16；The control terminal of metal-oxide-semiconductor Q15, metal-oxide-semiconductor
The anode of the control terminal connection diode D7 of Q16.
Fig. 3 and Fig. 5 is please referred to, is defeated to 51 or second primary driving unit 61 of the first primary driving unit further
Go out DC voltage, hydrogen fuel cell hybrid dynamic system 100 further includes voltage reduction module 70, and voltage reduction module 70 connects hydrogen fuel cell device
10 and lithium battery group 30, the output voltage of hydrogen fuel cell device 10 and lithium battery group 30 is converted into the first DC voltage, and
It is exported to the first primary driving unit 51.
Specifically, voltage reduction module 70 include resistance R15, resistance R16, resistance R17, resistance R18, capacitance C11, capacitance C12,
Capacitance C13, capacitance C14, diode D9, diode D10 and chip U5；Setting is drawn when chip U5 is equipped with power input pin, leads to
Foot, cutout setting pin, grounding pin, builtin voltage output pin, capacitance input pin, switch output pin and feedback are defeated
Enter pin；Diode D9 is connected between the power input pin and hydrogen fuel cell device 10 of chip U5, the power supply of chip U5 is defeated
Enter and connects diode D10 between pin and lithium battery group 30；The power input pin of chip U5 and it is logical when setting pin between connect
Connecting resistance R15；The cutout setting pin of chip U5 is grounded by resistance R16, the grounding pin ground connection of chip U5；Chip U5's is interior
Portion's voltage output pin is grounded by capacitance C12；Capacitance is connected between the capacitance input pin and switch output pin of chip U5
C13；The switch output pin connection inductance L1 of chip U5；It is connected in series with resistance R17 and electricity between one end and ground of inductance L1
R18 is hindered, the feedback input pin of the node connection chip U5 between resistance R17 and resistance R18.
It is connected between 51 or second primary driving unit 61 of the switch output pin of chip U5 and the first primary driving unit
Inductance L1.Specifically, by the break-make of the internal switch pipe of chip U5, BUCK reduction voltage circuits are constituted with inductance L1 and capacitance C14,
To export stable DC voltage.
Further, it is ensured that be isolated between the first primary driving unit 51 and metal-oxide-semiconductor Q7, avoid the high pressure pair of metal-oxide-semiconductor Q7
The input signal of first primary driving unit 51 impacts, and hydrogen fuel cell hybrid dynamic system 100 further includes boosting isolation module
80, boosting isolation module 80 connects the output end of metal-oxide-semiconductor Q7, and boosting isolation module 80 is also connected with the output end of voltage reduction module 70；
Boosting isolation module 80 is coupled by the output voltage to voltage reduction module 70, is exported in output end and is isolated with voltage reduction module 70
Output voltage.
Further, it is when power load electricity consumption is less, using the electric energy of hydrogen fuel cell device 10 to lithium battery group
30 chargings, hydrogen fuel cell hybrid dynamic system 100 further include charging adjustment module 90, and charging adjustment module 90 fills hydrogen fuel cell
Set 10 output voltage be adjusted to adapt to lithium battery group 30 voltage and to lithium battery group 30 export.
In the present embodiment, by the first one-way conduction module and the second one-way conduction module with one-way conduction characteristic,
When hydrogen fuel cell device meets power load demand, hydrogen fuel cell device is powered to power load；Work as hydrogen fuel cell
When device cannot be satisfied power load demand, hydrogen fuel cell device, lithium battery group are powered to power load simultaneously, to meet
The transient response demand of power load.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of hydrogen fuel cell hybrid dynamic system, for powering to power load, which is characterized in that the hydrogen fuel cell is mixed dynamic
System includes：
Hydrogen fuel cell device, for producing electricl energy；
First one-way conduction module, the hydrogen fuel cell device are provided by the first one-way conduction module to power load
Electric energy；
Lithium battery group, for when the hydrogen fuel cell device cannot be satisfied power load demand, electricity to be provided to power load
Energy；And
Second one-way conduction module, the lithium battery group provide electric energy by the second one-way conduction module to power load；
The output end of the first one-way conduction module is connected to the output end of the second one-way conduction module.
2. hydrogen fuel cell hybrid dynamic system according to claim 1, which is characterized in that the first one-way conduction module is set
There are the first electrode input end and the first cathode output end；First electrode input end of the first one-way conduction module connects institute
The cathode output end of hydrogen fuel cell device is stated, the first cathode output end of the first one-way conduction module is connected to electricity consumption and bears
It carries；The first one-way conduction module includes resistance R1, capacitance C1, metal-oxide-semiconductor Q1 and the first diode control U1；Described
One diode control U1 is equipped with voltage input pin, source connection pin, grid end connection pin, drain terminal connection pin and connects
Ground pin；The input terminal of the metal-oxide-semiconductor Q1 connects first electrode input end, described in the output end connection of the metal-oxide-semiconductor Q1
First cathode output end；The voltage input pin of the first diode control U1 connects first electrode input end, institute
The source connection pin for stating the first diode control U1 connects first electrode input end, first diode control
The grid end connection pin of U1 connects the control terminal of the metal-oxide-semiconductor Q1, and the drain terminal of the first diode control U1 connects pin
Connect first cathode output end；The output end of the metal-oxide-semiconductor Q1 is grounded by the capacitance C1 and resistance R1；It is described
The ground terminal of first diode control U1 is grounded by the resistance R1.
3. hydrogen fuel cell hybrid dynamic system according to claim 2, which is characterized in that the first one-way conduction module is also
Including voltage-stabiliser tube D1, the cathode of the voltage-stabiliser tube D1 connects the voltage input pin of the first diode control U1, described
The anode of voltage-stabiliser tube D1 connects the ground terminal of the first diode control U1；The first one-way conduction module further includes steady
Pressure pipe D2, the cathode of the voltage-stabiliser tube D2 connect the control terminal of the metal-oxide-semiconductor Q1, described in the anode connection of the voltage-stabiliser tube D2
The input terminal of metal-oxide-semiconductor Q1.
4. hydrogen fuel cell hybrid dynamic system according to claim 1, which is characterized in that further include the first normal open module；Institute
It states the first one-way conduction module and is equipped with the first electrode input end and the first cathode output end；First cathode output end and use
The first normal open module is connected between electric loading.
5. hydrogen fuel cell hybrid dynamic system according to claim 4, which is characterized in that the first normal open module includes the
One primary driving unit, the first rear class driving unit and metal-oxide-semiconductor Q7；Described first primary driving unit is to external input signal
It is amplified, the first rear class driving unit couples the output control signal isolation of the described first primary driving unit to institute
The control terminal of metal-oxide-semiconductor Q7 is stated, accesses of the metal-oxide-semiconductor Q7 between the first one-way conduction module and power load is controlled
System.
6. hydrogen fuel cell hybrid dynamic system according to claim 5, which is characterized in that the described first primary driving unit is set
There is the first normal open control terminal；The first primary driving unit include resistance R3, resistance R4, resistance R5, resistance R6, capacitance C3,
Capacitance C4 and metal-oxide-semiconductor Q8；The resistance R3, the resistance R4 and the capacitance C3 are sequentially connected in series；The first normal open control
End connects the node between the resistance R3 and resistance R4, and the node between the resistance R3 and the resistance R4 also passes through
The capacitance C4 ground connection, connects the resistance R3 between the resistance R3 and the first rear class driving unit；The resistance R5
It is in parallel with the capacitance C3；Node between the resistance R4 and the capacitance C3 connects the control terminal of the metal-oxide-semiconductor Q8；It is described
The input terminal of metal-oxide-semiconductor Q8 connects the first rear class driving unit；The first rear class driving unit includes capacitance C5, diode
D5 and chip U3；The chip U3 is equipped with negative electrode pin, negative electrode pin, power pins, recommending output mode pin and grounding pin；
The negative electrode pin of the chip U3, the described first primary driving unit of negative electrode pin connection；The recommending output mode of the chip U3 is drawn
Foot connects the cathode of the diode D5, and the anode of the diode D5 connects the control terminal of the metal-oxide-semiconductor Q7；The metal-oxide-semiconductor
Q7 input terminals connect the first cathode output end of the first one-way conduction module；The metal-oxide-semiconductor Q7 output ends connection electricity consumption is negative
It carries.
7. hydrogen fuel cell hybrid dynamic system according to claim 5, which is characterized in that further include voltage reduction module, the drop
Die block connects the hydrogen fuel cell device and the lithium battery group, the voltage reduction module by the hydrogen fuel cell device and
The output voltage of the lithium battery group is converted to the first DC voltage, and is exported to the described first primary driving unit.
8. hydrogen fuel cell hybrid dynamic system according to claim 7, which is characterized in that the voltage reduction module includes resistance
R15, resistance R16, resistance R17, resistance R18, capacitance C11, capacitance C12, capacitance C13, capacitance C14, diode D9, diode
D10 and chip U5；The chip U5 be equipped with power input pin, it is logical when setting pin, cutout setting pin, grounding pin, interior
Portion's voltage output pin, capacitance input pin, switch output pin and feedback input pin；The power input of the chip U5
The diode D9, power input pin and the lithium of the chip U5 are connected between pin and the hydrogen fuel cell device
The diode D10 is connected between battery pack；The power input pin of the chip U5 and it is logical when setting pin between connect institute
State resistance R15；The cutout setting pin of the chip U5 is grounded by the resistance R16, and the grounding pin of the chip U5 connects
Ground；The builtin voltage output pin of the chip U5 is grounded by the capacitance C12；The capacitance input pin of the chip U5 with
The capacitance C13 is connected between switch output pin；The switch output pin of the chip U5 connects the inductance L1；The electricity
It is connected in series with the resistance R17 and resistance R18, the resistance R17 and the resistance R18 between one end and ground of sense L1
Between node connect the feedback input pin of the chip U5.
9. hydrogen fuel cell hybrid dynamic system according to claim 8, which is characterized in that further include boosting isolation module, institute
The output end that boosting isolation module connects the metal-oxide-semiconductor Q7 is stated, the boosting isolation module is also connected with the defeated of the voltage reduction module
Outlet；The boosting isolation module is coupled by the output voltage to the voltage reduction module, output end output with it is described
The output voltage of voltage reduction module isolation.
10. hydrogen fuel cell hybrid dynamic system according to claim 1, which is characterized in that further include charging adjustment module, institute
State charging adjustment module by the output voltage of the hydrogen fuel cell device be adjusted to adapt to the voltage of the lithium battery group and to
The lithium battery group output.
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Cited By (1)
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