CN201556966U - Stand-by power supply system consisting of modularized fuel cell and energy storage battery - Google Patents
Stand-by power supply system consisting of modularized fuel cell and energy storage battery Download PDFInfo
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- CN201556966U CN201556966U CN2009200760678U CN200920076067U CN201556966U CN 201556966 U CN201556966 U CN 201556966U CN 2009200760678 U CN2009200760678 U CN 2009200760678U CN 200920076067 U CN200920076067 U CN 200920076067U CN 201556966 U CN201556966 U CN 201556966U
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- fuel cell
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a stand-by power supply system consisting of a modularized fuel cell and an energy storage battery. The system comprises the fuel cell, the energy storage battery, a hydrogen source, an electromagnetic valve, a temperature sensor, a voltage detector, a current sensor, a fan, a relevant circuit control part and a controllable switch, wherein the fuel cell and the energy storage battery are connected in parallel through a unilateral diode; the hydrogen source is connected with the fuel cell through the electromagnetic valve; the temperature sensor and the fan are arranged on the fuel cell; the voltage detector and the current sensor are connected with the energy storage battery; the relevant circuit control part comprises the control circuit board of the fuel cell and a main control circuit board; and the controllable switch is connected with the output end of the fuel cell. Compared with the prior art, the utility model has the advantages that the electricity and the voltage of the system are more stable; the running life of the batteries is longer; the cost is lower; the amount of energy storage batteries can be further saved; and the stand-by power supply system can be used in fields with higher power supply requirements.
Description
Technical field
The utility model relates to fuel cell, especially relates to the standby power system that a kind of modular fuel-cell and energy-storage battery are formed.
Background technology
Fuel cell can be used in bank as stand-by power supply, hospital, the airport, business premises etc. substitute lead-acid battery and the diesel engine generator widely applied at present, have environment friendly and pollution-free, noiselessness, light, be convenient to many advantages such as maintenance.
Stand-by power supply is as improving constantly along with people's quality of the life, the fast development of society's suitability for industrialized production, modern society and economy have reached indispensable degree to the dependence of electric power, and electric power has become the master switch of society and economical operation, do not had electricity, all just are absorbed in comprehensive paralysis rapidly.
Introduce fuel cell in stand-by power supply field applicable cases with stand-by power supply in the example that is applied as of communication aspects below:
For the communication base station stand-by power supply, in case the large tracts of land grid power blackout, this will have a strong impact on people's normal life, even social economy and human life's safety are brought about great losses.In the ice and snow disaster of last year and the Wenchuan earthquake in this year, can it serves to show the influence that outage brings to communicating by letter.
Be used as the main employing lead accumulator of answering the communication base station stand-by power supply at present and carry out with the combined mode of diesel generating set, the present situation of this stand-by power supply is increasing with the contradiction between the demand of current stand-by power supply, mainly show: a. lead accumulator finite capacity, it is 10 hours that standby time generally is no more than, and does not satisfy great emergent dangerous situation demand at all.B. and lead accumulator exist weight big, in the life-span short (about general 3-5), pollute big, streaking one, life-span be cannot say for sure shortcoming .c. such as card in order to prolong the generating standby time, be equipped with a large amount of diesel generation oil locomotives, generally is that the base station about 10-20 is equipped with an oily locomotive of generating.Most of the time, oily locomotive seal up for safekeeping need not, often need not be bad to oily locomotive, need often to safeguard that regular maintenance is more frequent that workload is big.When running into large-area power-cuts or great dangerous situation, oily locomotive is not enough.
Fuel cell is as a kind of generating equipment of energy-conserving and environment-protective, and volume is little, and is in light weight, noiselessness, low price, safeguard low, but continuous operation characteristics such as (48 hours or longer standby times) are suitable for use in the stand-by power supply field very much.
In China, telecommunication apparatus supplier, fuel cell manufacture merchant just actively get involved communication base station stand-by power supply field.In fuel cell applications use, as everyone knows: the switching on and shutting down operation of fuel cell is bigger to the life-span influence of fuel cell, mainly be because when the fuel cell switching on and shutting down are operated, can produce than higher local overvoltage, this will cause the oxidation of fuel-cell catalyst carbon carrier, make fuel cell performance decay than very fast.We can be by changing the method for anode-side catalyst conductive carrier, as use the method for corrosion resistance metal conductive oxide carrier instead, improve the catalyst tolerance to oxidation of fuel cell, reduce the influence of fuel cell switching on and shutting down, as introducing in patent 200610027287.2 to fuel battery performance.Also can reduce the local overpotential of fuel cell by the method that the fuel cell bringing onto load starts, but, often cause the permanent lesion of fuel cell being that fuel cell starts relatively danger with big load under lower voltage.
The problem of another one aspect is: in present fuel cell stand-by power supply field, PLUGPOWER as the U.S., ECOPOWER, the fuel cell stand-by power supply technical scheme that ITATECH company is adopted mainly is a kind of substituting independently-powered technical scheme of fuel cell.In these technical schemes, fuel cell is as the stand-by power supply of communication usefulness, its output voltage is a kind of soft voltage characteristic, must be through offering the communication power consumption equipment after the DC/DC voltage stabilizing, and the communication power consumption equipment has the requirement of comparison strictness to the output voltage of DC/DC.In addition, because fuel cell is as a kind of battery of soft voltage characteristic, it is when extraneous load variations, and the fuel cell voltage excursion is bigger, and this making to DC/DC requires than higher, and the price comparison height.External these company's fuel cell system more complicated add that somewhat expensive DC/DC etc. makes whole backup power system of fuel cell cost very high, and are difficult with traditional lead-acid battery competition on price, thereby also directly influenced the speed of applying of fuel cell.It should be noted that: in fuel cell system of new generation (air cooling self-humidifying fuel cell system), the cost of fuel cell system is almost suitable with DC/DC, the cost of fuel cell-powered part directly can be reduced by 50% if remove the direct connected mode of DC/DC.
In patent CN200810204755.8, introduced the standby power system that fuel cell is formed with energy-storage battery, in this system the stand-by power supply of the fuel cell of an integral body with the energy-storage battery composition, in this system, for matched load, the system voltage that fuel cell is formed with energy-storage battery changes in the scope of the broad that compares, the voltage that can cause power-supply system so is not very stable, and, the energy-storage battery Capacity Ratio that is complementary for the large current charge that prevents energy-storage battery and fuel cell is bigger.Moreover in this patent, fuel cell needs ventilation apparatus that remaining fuel cell voltage is consumed when quitting work, depletion rate is relatively slow, and attrition voltage is not thorough, in the process, air is a state more than needed, and hydrogen is under-supply relatively, easily battery is caused damage.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of maintenance that can further improve fuel cell system for the defective that overcomes above-mentioned prior art existence when reducing the energy-storage battery consumption, improve the voltage stability of standby power system, improve the modular fuel-cell of battery life and the standby power system that energy-storage battery is formed.
The purpose of this utility model can be achieved through the following technical solutions: the standby power system that a kind of modular fuel-cell and energy-storage battery are formed, it is characterized in that, this system comprises fuel cell, energy-storage battery, hydrogen source, electromagnetically operated valve, temperature sensor, voltage detector, current sensor, fan, relevant circuit control section and gate-controlled switch, described fuel cell and energy-storage battery are connected in parallel by unilateral diode, described hydrogen source connects fuel cell by electromagnetically operated valve, and described temperature sensor and fan are arranged on the fuel cell, and described voltage detector is connected energy-storage battery with current sensor, described relevant circuit control section comprises the control circuit board and the main control board of fuel cell, and described gate-controlled switch connects the output of fuel cell.
Described fuel cell is composed in parallel by a plurality of fuel cell modules, and a plurality of fuel cell modules all connect energy-storage battery by a unilateral diode separately.
Described a plurality of fuel cell module is equipped with relatively independent control circuit board separately.
Described fuel cell module is formed by stacking by a plurality of monocell sheets.
The monocell sheet number of described fuel cell module is the 10-100 sheet.
Described main control board connects each fuel cell module, energy-storage battery and current sensor respectively.
The output of each fuel cell module of described a plurality of fuel cell modules all connects a gate-controlled switch, and this gate-controlled switch connects the control circuit board of fuel cell module.
Described a plurality of fuel cell module comprises 2-10 module.
Compared with prior art, the utility model is with a plurality of fuel cell modules and be unified into fuel cell, each fuel cell module connects energy-storage battery by unilateral diode respectively, fuel cell is in parallel with energy-storage battery, fuel cell provides electric power for the load of coupling jointly for energy-storage battery and load provide electric power or fuel cell and energy-storage battery, the voltage of power that provides is more stable, the battery operation life-span is longer, cost is lower, the energy-storage battery consumption is saved more, can be used in power requirement than higher application scenario.
Description of drawings
Fig. 1 is the schematic diagram of the utility model standby power system;
Among the figure: 1-hydrogen source, 2-electromagnetically operated valve, 3-gate-controlled switch, 4-control circuit board, 5-fan, 6-fuel cell module, 7-unilateral diode, 8-main control board, 9-lead-acid battery, 10-current sensor, 11-load.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
As shown in Figure 1, the utility model backup power system of fuel cell, this system comprises fuel cell, energy-storage battery is a lead-acid battery 9, hydrogen source 1, electromagnetically operated valve 2, temperature sensor, voltage detector, current sensor 10, fan 5 and relevant circuit control section, described fuel cell is composed in parallel by a plurality of fuel cell modules 6, and a plurality of fuel cell modules 6 all connect lead-acid battery 9 by a unilateral diode 7 separately, described hydrogen source 1 connects fuel cell by electromagnetically operated valve 2, described temperature sensor and fan 5 are arranged on the fuel cell, and described voltage detector is connected lead-acid battery 9 with current sensor 10, and described relevant circuit control section comprises the control circuit board 4 and the main control board 8 of fuel cell.This system adopts the mode output power of modular fuel-cell 6 with energy-storage battery 9 parallel connections that are complementary, wherein fuel cell is with directly linking together by unilateral diode 7 between the energy-storage battery, each fuel cell module all has an independently gate-controlled switch 3, and this switch can directly carry out the modular battery both positive and negative polarity short circuit operation.Main control board 8 connects each fuel cell module 6, lead-acid battery 9 and current sensor 10 respectively, and main control board 8 is controlled the break-make of hydrogen electromagnetically operated valve 2 according to the signal of current sensor 10, thereby whether the hydrogen of realizing hydrogen source 1 enters fuel cell module 6.
The communication standby power system that fuel cell is formed with energy-storage battery, operation principle, process and matching are as follows:
Under the usual condition, do not work during main control board 8 detects that system not do not continue big output current.After the outage of extraneous 220VAC electricity, lead-acid battery begins to export electric energy, at this moment, if main control board is the 35A electric current according to the output signal that current sensor 10 transmits, fuel cell is judged the both end voltage of lead-acid battery then, if the voltage at plumbic acid two ends is lower than voltage 50.5V, main control board will be opened electromagnetically operated valve 2, and fuel cell module is started working.If the single module of fuel cell module output 15A/48.8V, 12A/50.5V will have 3 modules to start working in the system so, and the electric current that has 1A like this charges to lead-acid battery.Along with the carrying out of charging, the voltage of lead-acid battery raises gradually, and the output current of fuel cell can will further reduce.Voltage after whole system is stable may be at 50.8V.If this moment, load variations was 40A, lead-acid battery will be exported the electric current of 5A, the consumption of lead-acid battery electric energy, and the voltage of system will reduce, because total output current of 3 battery modules can reach 45A when 48.8V, this system voltage can be stabilized in more than the 48.8V.In the low power consumption phase of communication equipment, such as demand current is 10A, and one of them fuel cell module work just can meet the demands.
After external commercial power has connection, rising and system power that main control board 8 can detect system voltage become 0A or reverse charging electric current, this moment, the fuel cell supply oxygen quit work with fan, because lack oxygen, the fuel cell module output current reduces significantly, because the existence of unilateral diode, at this moment, fuel battery voltage will keep with the approaching level of lead-acid battery voltage, this moment can closed gate-controlled switch 3, make its voltage discharge clean, close hydrogen electromagnetically operated valve 2, fuel cell remnants.
In the above-described embodiments, fuel cell module can be the module that power output does not wait, can do more careful adjusting to the output of system like this, a plurality of fuel cell modules 6 can be 2-10 module, certainly, fuel cell module in parallel is many more, should be meticulous more to the adjusting of whole power output, but also can increase system cost simultaneously.
The utility model is not difficult after CN200810204755.8 compares to find with applying for a patent, owing to adopted modular design, the compound back of the energy-storage battery of coupling is as stand-by power supply together, further dwindled the output voltage of standby power system on the one hand, made that the load of back is safer stable.Reduced the consumption of energy-storage battery on the other hand, also can in this individual system, use, increased the selectable kind of energy-storage battery for the reasonable energy-storage battery of discharge platform.Life-span of fuel cell, stability have further been increased for the introducing of gate-controlled switch.
Claims (8)
1. the standby power system formed of modular fuel-cell and energy-storage battery, it is characterized in that, this system comprises fuel cell, energy-storage battery, hydrogen source, electromagnetically operated valve, temperature sensor, voltage detector, current sensor, fan, relevant circuit control section and gate-controlled switch, described fuel cell and energy-storage battery are connected in parallel by unilateral diode, described hydrogen source connects fuel cell by electromagnetically operated valve, and described temperature sensor and fan are arranged on the fuel cell, and described voltage detector is connected energy-storage battery with current sensor, described relevant circuit control section comprises the control circuit board and the main control board of fuel cell, and described gate-controlled switch connects the output of fuel cell.
2. the standby power system that a kind of modular fuel-cell according to claim 1 and energy-storage battery are formed, it is characterized in that, described fuel cell is composed in parallel by a plurality of fuel cell modules, and a plurality of fuel cell modules all connect energy-storage battery by a unilateral diode separately.
3. the standby power system that a kind of modular fuel-cell according to claim 1 and 2 and energy-storage battery are formed is characterized in that described a plurality of fuel cell modules are equipped with relatively independent control circuit board separately.
4. the standby power system that a kind of modular fuel-cell according to claim 3 and energy-storage battery are formed is characterized in that described fuel cell module is formed by stacking by a plurality of monocell sheets.
5. the standby power system that a kind of modular fuel-cell according to claim 4 and energy-storage battery are formed is characterized in that the monocell sheet number of described fuel cell module is the 10-100 sheet.
6. the standby power system that a kind of modular fuel-cell according to claim 3 and energy-storage battery are formed is characterized in that described main control board connects each fuel cell module, energy-storage battery and current sensor respectively.
7. the standby power system that a kind of modular fuel-cell according to claim 3 and energy-storage battery are formed, it is characterized in that, the output of each fuel cell module of described a plurality of fuel cell modules all connects a gate-controlled switch, and this gate-controlled switch connects the control circuit board of fuel cell module.
8. the standby power system that a kind of modular fuel-cell according to claim 1 and energy-storage battery are formed is characterized in that described a plurality of fuel cell modules comprise 2-10 module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200760678U CN201556966U (en) | 2009-06-10 | 2009-06-10 | Stand-by power supply system consisting of modularized fuel cell and energy storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200760678U CN201556966U (en) | 2009-06-10 | 2009-06-10 | Stand-by power supply system consisting of modularized fuel cell and energy storage battery |
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| CN201556966U true CN201556966U (en) | 2010-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009200760678U Expired - Lifetime CN201556966U (en) | 2009-06-10 | 2009-06-10 | Stand-by power supply system consisting of modularized fuel cell and energy storage battery |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255117A (en) * | 2011-04-20 | 2011-11-23 | 江苏耀扬新能源科技有限公司 | Battery system for electric vehicle |
| CN103318045A (en) * | 2012-03-23 | 2013-09-25 | 三星Sdi株式会社 | Vehicle and method of controlling the same |
| CN106159299A (en) * | 2016-08-09 | 2016-11-23 | 江苏国泽光电科技有限公司 | A kind of method for controlling power supply of fuel cell system |
| DE102016124796A1 (en) * | 2016-12-19 | 2018-06-21 | Endress+Hauser Conducta Gmbh+Co. Kg | Sensor head module for continuous automated data acquisition |
-
2009
- 2009-06-10 CN CN2009200760678U patent/CN201556966U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255117A (en) * | 2011-04-20 | 2011-11-23 | 江苏耀扬新能源科技有限公司 | Battery system for electric vehicle |
| CN102255117B (en) * | 2011-04-20 | 2013-09-18 | 江苏耀扬新能源科技有限公司 | Battery system for electric vehicle |
| CN103318045A (en) * | 2012-03-23 | 2013-09-25 | 三星Sdi株式会社 | Vehicle and method of controlling the same |
| CN106159299A (en) * | 2016-08-09 | 2016-11-23 | 江苏国泽光电科技有限公司 | A kind of method for controlling power supply of fuel cell system |
| DE102016124796A1 (en) * | 2016-12-19 | 2018-06-21 | Endress+Hauser Conducta Gmbh+Co. Kg | Sensor head module for continuous automated data acquisition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen city in hydrogen Hydrogen Energy Technology Co Ltd Assignor: Danye Hydrogen Energy-source Science-Technology Co., Ltd., Shanghai Contract record no.: 2018310000004 Denomination of utility model: Standby power system composed of modular fuel battery and energy storage battery Granted publication date: 20100818 License type: Common License Record date: 20180115 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100818 |
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| CX01 | Expiry of patent term | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Shenzhen city in hydrogen Hydrogen Energy Technology Co Ltd Assignor: Danye Hydrogen Energy-source Science-Technology Co., Ltd., Shanghai Contract record no.: 2018310000004 Date of cancellation: 20190725 |
|
| EC01 | Cancellation of recordation of patent licensing contract |