CN1996652A - Mixed driving coordination control system of the high-temperature fuel battery - Google Patents
Mixed driving coordination control system of the high-temperature fuel battery Download PDFInfo
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- CN1996652A CN1996652A CNA2006101482149A CN200610148214A CN1996652A CN 1996652 A CN1996652 A CN 1996652A CN A2006101482149 A CNA2006101482149 A CN A2006101482149A CN 200610148214 A CN200610148214 A CN 200610148214A CN 1996652 A CN1996652 A CN 1996652A
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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
Abstract
This invention relates to high temperature battery mixture dynamic accusation control system in fuel battery technique field, wherein, the output end of controller is connected to input end of main and aid fuel adjusters; main one output end is connected to input end of main fuel execution part; aid adjuster output end is connected to input end of execution part; main fuel executive part output end is connected to entrance end of adjust valve; aid fuel executive part output end is connected to aid fuel adjust valve entrance end.
Description
Technical field
What the present invention relates to is the system in a kind of fuel cell technology field, particularly a kind of high-temperature fuel cell mixed driving coordination control system.
Background technology
High-temperature fuel cell has energy conversion efficiency height, clean environmental protection, low noise advantages, and its high-grade used heat makes it to form various mixture circulatory systems with other power set, thereby utilizes the energy better, improves the device whole efficiency significantly.Because the scale of fuel cell is formed easily, the capacity of hybrid power system is flexible, the degree of freedom is big, is desirable distributed energy of 21 century simultaneously.
Hybrid power system has solved two major issues: one is the high problem of small fuel cell generating equipment expense; Another is the poor efficiency of microminiature gas turbine and the problem of relative high discharge capacity.High-temperature fuel cell-gas turbine the hybrid power system of research mainly contains two classes both at home and abroad at present: a class is to be made of molten carbonate fuel cell (MCFC) and gas turbine (GT); Another kind of is to be made of Solid Oxide Fuel Cell (SOFC) and gas turbine.In recent years, the success of generating electricity in succession of many high-temperature fuel cells, and the experiment of gas turbine accumulation had all been created condition for setting up high-temperature fuel cell-gas turbine hybrid power system, made the research of this hybrid power system also obtain developing rapidly.Yet the hybrid power system that high-temperature fuel cell and two non-linear very strong unit constructions of gas turbine are used is together bringing the more high efficiency while also to increase the complexity of system.This just presses for a kind of method that can carry out operating analysis and Control Study to hybrid power system.
Find by prior art documents, at present also fewer to the research of hybrid power control system, Rory A.Roberts etc. have delivered " Dynamicsimulation of carbonate fuel cell-gas turbine hybrid systems " (" dynamic simulation of carbonate fuel battery-gas turbine hybrid power system ") literary composition on 2006 128 volumes of periodical " Journal of Engineering for Gas Turbines andPower " (" gas turbine and power engineering journal "), this article has been studied MCFC/GThybrid system (molten carbonate fuel cell/gas turbine hybrid power system), and this system is by MCFC, gas turbine, heat exchanger, composition such as catalytic combustor and generator.By two kinds of modeling methods the dynamic property of MCFC/GT has been carried out analyzing relatively in the literary composition, the generating efficiency of gained hybrid power system is about 56%.In order to make hybrid power system under different operating modes, can both keep its normal working temperature, in the literary composition also the control strategy to hybrid power system study, employed is traditional PID controller.But this controller only can have certain control action to fuel cell load disturbance among a small circle, its system robustness and relatively poor to the adaptability of load variations.And the operation of fuel cells process is the electrochemical reaction process from chemical energy (fuel) converting electrical energy, is accompanied by inner complicated heat and mass transfer process, and the course of work of the hybrid power system that fuel cell and gas turbine constitute is more complicated.So, need coordinate control to hybrid power system, so that system can well operation under the external disturbance of various complexity.
Summary of the invention:
The objective of the invention is to overcome deficiency of the prior art, a kind of high-temperature fuel cell mixed driving coordination control system is provided.Make hybrid power system can not only be under the design point operating mode efficiently, operation stably, also can work under the variable working condition, and keep higher generating efficiency on a large scale.
The present invention is achieved by the following technical solutions, the present invention includes: tuning controller, main fuel control, main fuel actuator, auxilliary fuel trimmer, auxilliary fuel actuator, fuels sources, main fuel adjuster valve, auxilliary fuel control valve, high-temperature fuel cell hybrid power system.The parts annexation is: the output of tuning controller is connected on the input of main fuel control and auxilliary fuel trimmer respectively, the output of main fuel control is connected on the input of main fuel actuator, the output of auxilliary fuel trimmer is connected on the input of auxilliary fuel actuator, the output of main fuel actuator is connected on the arrival end of main fuel adjuster valve, the output of auxilliary fuel actuator is connected on the arrival end of auxilliary fuel control valve, and the port of export of fuels sources is connected on the arrival end of main fuel adjuster valve and the arrival end of auxilliary fuel control valve respectively by pipeline; The arrival end of high-temperature fuel cell hybrid power system connects the port of export of main fuel adjuster valve and the port of export of auxilliary fuel control valve respectively by pipeline.
Described high-temperature fuel cell hybrid power system comprises: fuel preheater, high-temperature fuel cell pile, catalytic combustor, high-temperature heat-exchanging, air preheater, turbine, air compressor, high-speed engine, three-way valve.Annexation is: the cold side outlet of fuel preheater links to each other by the anode inlet of pipeline with the high-temperature fuel cell pile, and the hot side-entrance of fuel preheater links to each other with three-way valve; The import of catalytic combustor is connected with the anode export of high-temperature fuel cell pile and the outlet of turbine respectively, and the outlet of catalytic combustor links to each other with the hot side-entrance of high-temperature heat-exchanging; The hot side outlet of high-temperature heat-exchanging links to each other with the cathode inlet of high-temperature fuel cell pile, and the cold side import of high-temperature heat-exchanging and the outlet of the cold side of air preheater link to each other, and the cold side outlet of high-temperature heat-exchanging links to each other with the import of turbine; The cold side import of air preheater and the outlet of air compressor link to each other, and the hot side of air preheater is entered and linked to each other with three-way valve; Air compressor, turbine, high-speed engine connect by connecting axle, and utilize rolling bearing to be installed on the same connecting axle.
When the present invention works, tuning controller is according to the variation of external load, act on main fuel actuator and auxilliary fuel actuator respectively by main fuel control and auxilliary fuel trimmer, regulate main fuel adjuster valve and auxilliary fuel control valve, give the hybrid power system fuel supplying.The fuel of fuels sources is divided into two-way and supplies with hybrid power system, and main fuel flow feeds fuel cell; Auxilliary fuel flows to into catalytic combustor.Main fuel flow is through entering high-temperature fuel cell behind the fuel preheater, carry out inside reforming after, enter anode and cathode oxidant electrochemical reaction take place in fuel cell, the electronics of generation is exported through external circuit, discharges heat simultaneously, produces the high-grade exhaust.The anode of fuel cell exhaust enters catalytic combustor, after catalytic combustion indoor with residual fuel in the exhaust and the auxilliary abundant oxidation of fuel, gas temperature is raise, through the high-temperature heat-exchanging heat exchange, enters fuel battery negative pole.Fuel battery negative pole is a three-way valve in succession, and exhaust is shunted to fuel battery negative pole: a part of cathode exhaust gas enters the fuel gas of anode of fuel cell by the fuel preheater preheating; Another part gas enters the air of air preheater heating blower outlet.
Air is entered by compressor inlet, and compressed air enters the air preheater preheating by blower outlet, and the gas that enters high-temperature heat-exchanging then and enter fuel battery negative pole carries out heat exchange.High temperature, gases at high pressure through the high-temperature heat-exchanging heating enter the turbine expansion acting, and the exhaust of turbine enters catalytic combustor and carries out recycling.Finally, the common power output of high-temperature fuel cell and gas turbine satisfies the needs of external load.In the present invention, high-temperature fuel cell and gas turbine power generation energy supply ratio are 8: 2 under the rated condition.
The present invention can not only improve generating efficiency, the reduction generating expense of system with fuel cell and traditional Blast Furnace Top Gas Recovery Turbine Unit (TRT)-combustion turbine combined generating, and can also promote the development of fuel cell technology.Its coordinated control system can adopt different control strategies according to different handling characteristicss, regulates the fuel of supplying with hybrid power system, makes the power output of hybrid power system satisfy the needs of external load, and guarantees system safety, operation stably.
The present invention is highly suitable for places such as hospital, market, sub-district, and the fuel availability of hybrid power system can reach more than 85%, can obtain to surpass 60% generating efficiency; simultaneously; also reduced the discharging of carbon dioxide, the pollutant NOx discharge capacity is lower than 1ppm, and the environmental protection performance is good.In addition, in the present invention, fuel cell moves under ambient pressure, and its pressure and gas turbine cycle pressure ratio are irrelevant, thereby system can effectively operation in very big combustion machine circulation pressure ratio scope.This specific character makes it that very big flexibility be arranged on the generating scale.
Description of drawings
Fig. 1 structural representation of the present invention.
Fig. 2 high-temperature fuel cell mixed power system structure of the present invention schematic diagram.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed execution mode and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, the present invention includes: tuning controller 1, main fuel control 2, main fuel actuator 3, auxilliary fuel trimmer 4, auxilliary fuel actuator 5, fuels sources 6, main fuel adjuster valve 7, auxilliary fuel control valve 8, high-temperature fuel cell hybrid power system 9.Annexation is: the output of tuning controller 1 is connected on main fuel control 2 and auxilliary fuel trimmer 3 inputs respectively; The output of main fuel control 2 is connected on the input of main fuel actuator 3; The output of auxilliary fuel trimmer 4 is connected on the input of auxilliary fuel actuator 5; The output of main fuel actuator 3 is connected on the arrival end of main fuel adjuster valve 7; The output of auxilliary fuel actuator 5 is connected on the arrival end of auxilliary fuel control valve 8; The port of export of fuels sources 6 is connected on the arrival end of main fuel adjuster valve 7 and the arrival end of auxilliary fuel control valve 8 respectively by pipeline; The arrival end of high-temperature fuel cell hybrid power system 9 connects the port of export of main fuel adjuster valve 7 and the port of export of auxilliary fuel control valve 8 respectively by pipeline.
As shown in Figure 2, described high-temperature fuel cell hybrid power system 9 comprises: fuel preheater 10, high-temperature fuel cell pile 11, catalytic combustor 12, high-temperature heat-exchanging 13, air preheater 15, turbine 15, air compressor 16, high-speed engine 17, three-way valve 18.Annexation is: the cold side outlet of fuel preheater 10 links to each other by the anode inlet of pipeline with high-temperature fuel cell pile 11, and the hot side-entrance of fuel preheater 10 links to each other with three-way valve 18; The import of catalytic combustor 12 is connected with the anode export of high-temperature fuel cell pile 11 and the outlet of turbine 15 respectively, and the outlet of catalytic combustor 12 links to each other with the hot side-entrance of high-temperature heat-exchanging 13; The hot side outlet of high-temperature heat-exchanging 13 links to each other with the cathode inlet of high-temperature fuel cell pile 11, and outlet links to each other with the cold side of air preheater 15 in the cold side import of high-temperature heat-exchanging 13, and the cold side outlet of high-temperature heat-exchanging 13 links to each other with the import of turbine 15; The cold side import of air preheater 14 links to each other with the outlet of air compressor 16, and the hot side-entrance of air preheater 14 links to each other with three-way valve 18; Air compressor 16, turbine 15, high-speed engine 17 connect by connecting axle, and utilize rolling bearing to be installed on the same connecting axle.
Claims (4)
1. high-temperature fuel cell mixed driving coordination control system, comprise: tuning controller, main fuel control, the main fuel actuator, auxilliary fuel trimmer, auxilliary fuel actuator, fuels sources, the main fuel adjuster valve, auxilliary fuel control valve, the high-temperature fuel cell hybrid power system, it is characterized in that, the output of tuning controller is connected on the input of main fuel control and auxilliary fuel trimmer respectively, the output of main fuel control is connected on the input of main fuel actuator, the output of auxilliary fuel trimmer is connected on the input of auxilliary fuel actuator, the output of main fuel actuator is connected on the arrival end of main fuel adjuster valve, the output of auxilliary fuel actuator is connected on the arrival end of auxilliary fuel control valve, the port of export of fuels sources is connected on the arrival end of main fuel adjuster valve and the arrival end of auxilliary fuel control valve respectively by pipeline, and the arrival end of high-temperature fuel cell hybrid power system connects the port of export of main fuel adjuster valve and the port of export of auxilliary fuel control valve respectively by pipeline.
2. high-temperature fuel cell mixed driving coordination control system according to claim 1, it is characterized in that, described high-temperature fuel cell hybrid power system, comprise: fuel preheater, high-temperature fuel cell pile, catalytic combustor, high-temperature heat-exchanging, air preheater, turbine, air compressor, high-speed engine, three-way valve, annexation is: the cold side outlet of fuel preheater links to each other by the anode inlet of pipeline with the high-temperature fuel cell pile, and the hot side-entrance of fuel preheater links to each other with three-way valve; The import of catalytic combustor is connected with the anode export of high-temperature fuel cell pile and the outlet of turbine respectively, and the outlet of catalytic combustor links to each other with the hot side-entrance of high-temperature heat-exchanging; The hot side outlet of high-temperature heat-exchanging links to each other with the cathode inlet of high-temperature fuel cell pile, and the cold side import of high-temperature heat-exchanging and the outlet of the cold side of air preheater link to each other, and the cold side outlet of high-temperature heat-exchanging links to each other with the import of turbine; The cold side import of air preheater and the outlet of air compressor link to each other, and the hot side-entrance of air preheater links to each other with three-way valve; Air compressor, turbine, high-speed engine connect by connecting axle, and utilize rolling bearing to be installed on the same connecting axle.
3. high-temperature fuel cell mixed driving coordination control system according to claim 1 is characterized in that, described high-temperature fuel cell pile comprises molten carbonate fuel cell.
4. according to claim 1 or 3 described high-temperature fuel cell mixed driving coordination control systems, it is characterized in that under the rated condition, described high-temperature fuel cell and high-speed engine generating energy supply ratio are 8: 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101482149A CN100428553C (en) | 2006-12-28 | 2006-12-28 | Mixed driving coordination control system of the high-temperature fuel battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101482149A CN100428553C (en) | 2006-12-28 | 2006-12-28 | Mixed driving coordination control system of the high-temperature fuel battery |
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| CN1996652A true CN1996652A (en) | 2007-07-11 |
| CN100428553C CN100428553C (en) | 2008-10-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102985665A (en) * | 2010-07-02 | 2013-03-20 | 埃克森美孚上游研究公司 | Low emission triple-cycle power generation systems and methods |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05144455A (en) * | 1991-11-25 | 1993-06-11 | Ishikawajima Harima Heavy Ind Co Ltd | Operating method for fuel cell power generating system |
| US5413879A (en) * | 1994-02-08 | 1995-05-09 | Westinghouse Electric Corporation | Integrated gas turbine solid oxide fuel cell system |
| CN100433433C (en) * | 2003-06-30 | 2008-11-12 | 川崎重工业株式会社 | Fuel cell/constant pressure turbine/hybrid system |
| DE102005012230A1 (en) * | 2004-03-24 | 2005-10-06 | General Electric Co. | Integrated fuel cell gas turbine system has compressor and fuel processor heated by exhaust gas from the starting chamber |
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2006
- 2006-12-28 CN CNB2006101482149A patent/CN100428553C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102985665A (en) * | 2010-07-02 | 2013-03-20 | 埃克森美孚上游研究公司 | Low emission triple-cycle power generation systems and methods |
| CN107575308A (en) * | 2010-07-02 | 2018-01-12 | 埃克森美孚上游研究公司 | The cycle power generation systems of low emission three and method |
| US9903271B2 (en) | 2010-07-02 | 2018-02-27 | Exxonmobil Upstream Research Company | Low emission triple-cycle power generation and CO2 separation systems and methods |
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| CN100428553C (en) | 2008-10-22 |
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