CN206992225U - A kind of hydrogen fuel cell system with multilevel voltage collection - Google Patents
A kind of hydrogen fuel cell system with multilevel voltage collection Download PDFInfo
- Publication number
- CN206992225U CN206992225U CN201720485225.XU CN201720485225U CN206992225U CN 206992225 U CN206992225 U CN 206992225U CN 201720485225 U CN201720485225 U CN 201720485225U CN 206992225 U CN206992225 U CN 206992225U
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- China
- Prior art keywords
- voltage
- fuel cell
- chip microcomputer
- hydrogen fuel
- cell system
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
It the utility model is related to a kind of hydrogen fuel cell system with multilevel voltage collection, including the controller (1) being sequentially connected, fuel cell (2) and load (3), described controller (1) includes the single-chip microcomputer (4) and sensor assembly (6) being connected with each other, described sensor assembly (6) includes being used for the voltage sensor for gathering fuel cell (2) voltage, the voltage output end of fuel cell (2) is grounded after the resistance of multiple series connection, it is voltage acquisition point between each resistance, multiple sampling pins of described single-chip microcomputer (4) pass through voltage acquisition point corresponding to the connection of corresponding voltage sensor respectively.Compared with prior art, the utility model ensure that the precision of measurement to voltage by the way of classification measures in wider measurement range；Using monolithic processor controlled blower module and solenoid valve module radiates to battery, emission is that battery is operated in optimum state, simplifies control system.
Description
Technical field
A kind of hydrogen fuel cell is the utility model is related to, more particularly, to a kind of hydrogen fuel electricity with multilevel voltage collection
Cell system.
Background technology
Fuel cell because its efficiency high, noise is low, reliability is high, environmental pollution is small the advantages of, and be considered as nowadays
It is preferred clean, efficient generation technology, of today in the world using very extensive.As a kind of emerging green energy resource,
Fuel cell has good development prospect, has a high potential.For a complete fuel cell system, except battery in itself it
Outside, it should also include a set of control system, battery is monitored and managed in itself.This set of system must moment monitoring and control
The operation of fuel cell in all cases, and system is controlled, simultaneity factor monitors to the working condition of entirety,
During failure alarm can be sent in time or make respective handling.Therefore, the presence of so a set of management system very must
Will.The service behaviour of fuel cell also has larger pass in addition to relevant with self structure etc. with the condition of work of battery
System.By control system and control method reasonable in design, accurately adopt present battery various information, as output voltage,
Electric current, temperature etc., according to obtained information, air inlet, exhaust, temperature etc. are suitably controlled, fuel can be significantly improved
The service behaviour of battery.Setting of some the current control systems to these parameters generally requires staff and entered by host computer
Row manually adjusts, and needs higher and so that whole come value, so the professional technique requirement to staff by experience
Individual system is also more complicated.
Utility model content
The purpose of this utility model be exactly in order to overcome above-mentioned prior art to exist the defects of and providing one kind can ensure
Compared with Wide measuring range and the hydrogen fuel cell system with multilevel voltage collection of precision.
The purpose of this utility model can be achieved through the following technical solutions：
It is a kind of with multilevel voltage collection hydrogen fuel cell system, including be sequentially connected controller, fuel cell and
Load, described controller include the single-chip microcomputer and sensor assembly being connected with each other, and described sensor assembly includes being used to adopt
Collect the voltage sensor of fuel battery voltage, the voltage output end of fuel cell is grounded after the resistance of multiple series connection, each resistance
Between be voltage acquisition point, multiple sampling pins of described single-chip microcomputer are respectively by corresponding to the connection of corresponding voltage sensor
Voltage acquisition point.
Described system also includes the blower module being connected with single-chip microcomputer, and described blower module includes being used to dissipate battery
The fan of heat.
Described system also includes the solenoid valve module being connected with single-chip microcomputer, and described solenoid valve module includes being used for battery
The magnetic valve of exhaust emissions.
Described sensor assembly also includes the temperature sensor and pressure sensor being connected with fuel cell.
Described sensor assembly also includes the current sensor with load connection.
Described voltage acquisition point also passes through capacity earth.
Each sampling pin of described single-chip microcomputer is also grounded by voltage-regulator diode.
Compared with prior art, the utility model has advantages below：
(1) voltage output end of fuel cell uses series resistance partial pressure, multiple voltages of different sizes is produced, to voltage
By the way of classification measures, the precision of measurement is ensure that in wider measurement range.
(2) battery is radiated using monolithic processor controlled blower module and solenoid valve module, emission is battery work
In optimum state, control system is simplified, has saved human cost.
(3), can be to the running status of battery by battery operation data such as various sensor collection voltages, electric current, temperature
It is monitored.
(4) each sampling pin of single-chip microcomputer is grounded by voltage-regulator diode, is no more than monolithic power traction available for limitation voltage
Pin tolerance range, prevent from burning element.
Brief description of the drawings
Fig. 1 is the structural representation of the present embodiment system；
Fig. 2 is the schematic diagram of the present embodiment system voltage collection.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with the utility model
Implemented premised on technical scheme, give detailed embodiment and specific operating process, but guarantor of the present utility model
Shield scope is not limited to following embodiments.
Embodiment
As shown in figure 1, it is a kind of with multilevel voltage collection hydrogen fuel cell system, including be sequentially connected controller 1,
Fuel cell 2, load 3, controller 1 includes single-chip microcomputer 4, power module 5, sensor assembly 6, blower module 7 and magnetic valve mould
Block 8.
Blower module 7 includes being used for the fan to battery radiating, the rotating speed of fan and the temperature of pile and current flow
Size is relevant, and temperature is higher, output current is bigger, then rotation speed of the fan should be faster, and battery is radiated.Control to rotation speed of the fan
System is realized by PWM.
Solenoid valve module 8 includes the magnetic valve for being used for battery tail gas discharge, the gas pipeline phase of magnetic valve and fuel cell
Connection, the time of discharge interval and the time being vented every time are relevant with the running parameter of battery and the performance of battery.
The control parameter of fan and magnetic valve is drawn by single-chip microcomputer 4 according to the working condition of current fuel cell, and
And as control parameter is adjusted at any time for the change of working condition, single-chip microcomputer 4, to ensure the Effec-tive Function of fuel cell.
When the running parameters such as the voltage of fuel cell 2, electric current, air pressure, temperature occur it is abnormal when, fuel cell 2 it is normal
Operation is affected, and now single-chip microcomputer 4 can take safeguard measure.
Sensor assembly 6 passes including being used to gather voltage sensor, the electric currents being connected with load 3 of the voltage of fuel cell 2
Sensor, the temperature sensor and pressure sensor being connected with fuel cell 2, voltage, electric current, the gentle pressure of temperature are adopted respectively
Collection.
The voltage output end of fuel cell 2 is grounded after the resistance of multiple series connection, is voltage acquisition point between each resistance, single
Multiple sampling pins of piece machine 4 pass through voltage acquisition point corresponding to the connection of corresponding voltage sensor respectively.Voltage acquisition point is also
Pass through capacity earth.Each sampling pin of single-chip microcomputer 4 is also grounded by voltage-regulator diode.
The course of work of system is as follows：
System is initialized after starting, and voluntarily the state of fuel cell 2, the state of single-chip microcomputer 4 and hydrogen gas pressure are carried out
Check, then measure the open-circuit voltage of fuel cell 2, if open-circuit voltage is too low, needs unlatching air bleeding valve to be exhausted, wait out
Road voltage is started working again after being increased to normal level.Load current is started from scratch gradual increase, with the increasing of electric current, heating
Gradually increase, therefore rotation speed of the fan will also increase therewith.When temperature is relatively low, hydrogen fuel cell poor-performing, therefore fan is scattered
Heat can not be too strong, and otherwise temperature is unable to reach requirement.After system temperature reaches 45 DEG C, system enters normal operating conditions.
During normal work, the output current of fuel cell 2 is supplied to load 3, each sensor of system, including voltage sensor, electric current to pass
Sensor, temperature sensor, baroceptor, current voltage, electric current, temperature, air pressure these parameters are monitored, system root
According to these parameters, the rotating speed of suitable solenoid valve vents interval, evacuation time and fan is set automatically, ensures the energy of fuel cell 2
Work is under optimum conditions.When abnormal conditions occur in these parameters, system then adjusts the running parameter of magnetic valve and fan,
To correct failure.For example, when detecting that temperature is too high, then the rotating speed of appropriate increase fan is needed to be radiated to increase；Work as voltage
When declining very fast, then the exhaust interval of air bleeding valve, increase tail row, to make voltage be gone up can be reduced.It is former when frequently occurring
Barrier, when counting more than ten times, then assert that the system failure is serious, performs power-off operation.
Fig. 2 is the schematic diagram of system voltage collection.Because the input of general single-chip microcomputer pin is no more than 3.3V, thus for compared with
Big magnitude of voltage, it need to be sampled again after partial pressure.After the system carries out partial pressure using tetra- resistance of R1, R2, R3, R4, in
A, the different voltage of three-level, then three AD of single-chip microcomputer are respectively connected to after electric resistance partial pressure from big to small is produced at the point of B, C tri-
Sample pin VOLT1, VOLT2, VOLT3.When voltage is smaller, it is low to obtain VOLT1 values after R5 and R6 second divided voltages for voltage at A
In 3.3V, can directly read, and it is more accurate, J input voltages are can obtain after amplified calculating；It is electric at A when voltage is larger
Pressure is also higher, obtains VOLT1 values still greater than 3.3V after R5 and R6 partial pressures, can not directly sample to obtain magnitude of voltage, now
Calculated using voltage at B or C, input voltage is calculated to amplify by VOLT2 or VOLT3 pin sampled values.In monolithic
Voltage-regulator diode ZD1, ZD2, ZD3 are provided with machine input pin, is no more than single-chip microcomputer pin tolerance range for limiting voltage,
Prevent from burning element.According to the difference of voltage swing, the sampled value that VOLT1, VOLT2, VOLT3 is respectively adopted is calculated, this
Sample had both added the measurement range of voltage, while and can ensures the measurement accuracy of voltage in a wide range of.
Claims (7)
1. a kind of hydrogen fuel cell system with multilevel voltage collection, including controller (1), the fuel cell being sequentially connected
(2) and load (3), described controller (1) include the single-chip microcomputer (4) and sensor assembly (6) being connected with each other, described sensing
Device module (6) includes being used for the voltage sensor for gathering fuel cell (2) voltage, it is characterised in that the voltage of fuel cell (2)
Output end is grounded after the resistance of multiple series connection, is voltage acquisition point between each resistance, multiple samplings of described single-chip microcomputer (4)
Pin passes through voltage acquisition point corresponding to the connection of corresponding voltage sensor respectively.
2. a kind of hydrogen fuel cell system with multilevel voltage collection according to claim 1, it is characterised in that described
System also include the blower module (7) that be connected with single-chip microcomputer (4), described blower module includes being used for the wind for radiating to battery
Fan.
3. a kind of hydrogen fuel cell system with multilevel voltage collection according to claim 1, it is characterised in that described
System also include the solenoid valve module (8) that be connected with single-chip microcomputer (4), described solenoid valve module (8) is including being used for battery tail
The magnetic valve of gas discharge.
4. a kind of hydrogen fuel cell system with multilevel voltage collection according to claim 1, it is characterised in that described
Sensor assembly (6) also include the temperature sensor and pressure sensor that are connected with fuel cell (2).
5. a kind of hydrogen fuel cell system with multilevel voltage collection according to claim 1, it is characterised in that described
Sensor assembly (6) also include and load (3) current sensor that is connected.
6. a kind of hydrogen fuel cell system with multilevel voltage collection according to claim 1, it is characterised in that described
Voltage acquisition point also pass through capacity earth.
7. a kind of hydrogen fuel cell system with multilevel voltage collection according to claim 1, it is characterised in that described
Each sampling pin of single-chip microcomputer (4) be also grounded by voltage-regulator diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720485225.XU CN206992225U (en) | 2017-05-04 | 2017-05-04 | A kind of hydrogen fuel cell system with multilevel voltage collection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720485225.XU CN206992225U (en) | 2017-05-04 | 2017-05-04 | A kind of hydrogen fuel cell system with multilevel voltage collection |
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| Publication Number | Publication Date |
|---|---|
| CN206992225U true CN206992225U (en) | 2018-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720485225.XU Expired - Fee Related CN206992225U (en) | 2017-05-04 | 2017-05-04 | A kind of hydrogen fuel cell system with multilevel voltage collection |
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| CN (1) | CN206992225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023185596A1 (en) * | 2022-03-31 | 2023-10-05 | 永安行科技股份有限公司 | Fuel cell stack control system and control method |
-
2017
- 2017-05-04 CN CN201720485225.XU patent/CN206992225U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023185596A1 (en) * | 2022-03-31 | 2023-10-05 | 永安行科技股份有限公司 | Fuel cell stack control system and control method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180209 Termination date: 20210504 |
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| CF01 | Termination of patent right due to non-payment of annual fee |