KR20150070587A - Fuelcell evaluating system - Google Patents

Fuelcell evaluating system Download PDF

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KR20150070587A
KR20150070587A KR1020130156980A KR20130156980A KR20150070587A KR 20150070587 A KR20150070587 A KR 20150070587A KR 1020130156980 A KR1020130156980 A KR 1020130156980A KR 20130156980 A KR20130156980 A KR 20130156980A KR 20150070587 A KR20150070587 A KR 20150070587A
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control valve
fuel cell
line
proportional control
discharge
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KR1020130156980A
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Korean (ko)
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KR101583883B1 (en
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손익제
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현대자동차주식회사
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0438—Pressure; Ambient pressure; Flow
    • H01M8/04395—Pressure; Ambient pressure; Flow of cathode reactants at the inlet or inside the fuel cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04097—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with recycling of the reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0438—Pressure; Ambient pressure; Flow
    • H01M8/0441—Pressure; Ambient pressure; Flow of cathode exhausts
    • 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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  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)

Abstract

Disclosed is a fuel cell evaluation system, comprising: a supply line coupled to the front end of a fuel cell, and a discharge line coupled to the rear end; a mass flowmeter and a ratio control valve arranged on the supply line; and a discharge pressure control valve arranged on the discharge line. According to the fuel cell evaluation system comprising the stated configuration, a stoichiometric ratio can be controlled by conditions, and a real fuel system can be simulated due to a fast response speed thereof.

Description

연료전지 평가시스템 {FUELCELL EVALUATING SYSTEM}[0001] FUEL CELL EVALUATION SYSTEM [0002]

본 발명은 조건에 따라 화학양론비의 조절이 가능하고, 응답속도가 빨라 실제 연료전지 시스템의 모사가 가능한 연료전지 평가시스템에 관한 것이다.
The present invention relates to a fuel cell evaluation system capable of controlling the stoichiometric ratio according to conditions and having a high response speed, and capable of simulating an actual fuel cell system.

본 발명은 연료전지 스택 평가 장비의 가스 공급 시스템에 관한 것이다.The present invention relates to a gas supply system of a fuel cell stack evaluation equipment.

현재 사용 중인 연료전지 스택 평가 장비의 경우 MFC(질량 유량 조절계)를 이용하여 가스 유량을 제어한다. 이때, MFC의 경우 제어속도가 수초 이내로 매우 느려 차량용 연료전지 시스템의 운전 모드 모사는 불가하다.For current fuel cell stack evaluation equipment, the MFC (mass flow controller) is used to control the gas flow rate. At this time, the control speed of the MFC is very short, which is within a few seconds, and the operation mode simulation of the fuel cell system of the vehicle is impossible.

기존 연료전지 스택 평가 장비를 이용한 가압 운전의 경우 MFC로 가스를 공급하고 가스 출구측 BCV(배출압력제어밸브), 압력센서를 이용하여 공급 압력만을 제어한다. In the case of pressurized operation using existing fuel cell stack evaluation equipment, gas is supplied to the MFC, and only the supply pressure is controlled by using a gas outlet BCV (discharge pressure control valve) and a pressure sensor.

그러나 연료전지 스택 평가 장비에 MFC를 대체하여 비례제어밸브, 압력 센서 및 MFM(질량 유량 측정계)을 이용하는 경우 제어속도가 수백msec이내로 매우 빨라 차량용 연료전지 시스템의 운전 모드 모사가 가능하다.
However, when the proportional control valve, pressure sensor and MFM (mass flow rate meter) are used instead of MFC in the fuel cell stack evaluation equipment, the control speed is very fast within several hundreds of msec, and the operation mode simulation of the fuel cell system of the vehicle is possible.

상기의 배경기술로서 설명된 사항들은 본 발명의 배경에 대한 이해 증진을 위한 것일 뿐, 이 기술분야에서 통상의 지식을 가진자에게 이미 알려진 종래기술에 해당함을 인정하는 것으로 받아들여져서는 안 될 것이다.
It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

KR 10-2013-0013644 AKR 10-2013-0013644 A

본 발명은 조건에 따라 화학양론비의 조절이 가능하고, 응답속도가 빨라 실제 연료전지 시스템의 모사가 가능한 연료전지 평가시스템을 제공하는데 그 목적이 있다.
It is an object of the present invention to provide a fuel cell evaluation system capable of controlling the stoichiometric ratio according to conditions, and having a high response speed and capable of simulating an actual fuel cell system.

상기의 목적을 달성하기 위한 본 발명에 따른 연료전지 평가시스템은, 연료전지 전단에 결합된 공급라인 및 후단에 결합된 배출라인; 공급라인에 마련된 질량유량측정계와 비례제어밸브; 및 배출라인에 마련된 배출압력제어밸브;를 포함한다.According to an aspect of the present invention, there is provided a fuel cell evaluation system comprising: a supply line coupled to a front end of a fuel cell; A mass flowmeter and a proportional control valve provided in the feed line; And a discharge pressure control valve provided in the discharge line.

질량유량측정계는 비례제어밸브의 상류지점에 마련될 수 있다.The mass flowmeter may be provided upstream of the proportional control valve.

질량유량측정계는 비례제어밸브의 하류지점에 마련될 수 있다.The mass flowmeter may be provided downstream of the proportional control valve.

베출라인에서 분기되어 공급라인으로 연결되는 재순환라인;이 더 포함될 수 있다.And a recirculation line branched from the return line and connected to the supply line.

재순환라인은 배출압력제어밸브의 전단에서 분기될 수 있다.The recirculation line may be branched at the front end of the discharge pressure control valve.

재순환라인은 비례제어밸브의 후단에서 연결될 수 있다.The recirculation line may be connected downstream of the proportional control valve.

공급라인에서 연료전지 전단에 마련된 이젝터;를 더 포함하고, 재순환라인은 이젝터에 연결될 수 있다.
And an ejector provided upstream of the fuel cell in the supply line, wherein the recycle line can be connected to the ejector.

상술한 바와 같은 구조로 이루어진 연료전지 평가시스템에 따르면, 조건에 따라 화학양론비의 조절이 가능하고, 응답속도가 빨라 실제 연료전지 시스템의 모사가 가능하다.
According to the fuel cell evaluation system having the above-described structure, the stoichiometric ratio can be adjusted according to the conditions, and the response speed is fast, so that the actual fuel cell system can be simulated.

도 1 내지 3은 본 발명의 다양한 실시예에 따른 연료전지 평가시스템을 나타낸 도면.Figures 1 to 3 illustrate a fuel cell evaluation system in accordance with various embodiments of the present invention.

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시예에 대하여 살펴본다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

도 1 내지 3은 본 발명의 다양한 실시예에 따른 연료전지 평가시스템을 나타낸 도면이다. 1 to 3 are views showing a fuel cell evaluation system according to various embodiments of the present invention.

본 발명에 따른 연료전지 평가시스템은, 도 1에 도시된 바와 같이 연료전지 전단에 결합된 공급라인(100) 및 후단에 결합된 배출라인(200); 공급라인(100)에 마련된 질량유량측정계(MFM)와 비례제어밸브; 및 배출라인에 마련된 배출압력제어밸브;를 포함한다.The fuel cell evaluation system according to the present invention comprises a supply line 100 coupled to the front end of the fuel cell as shown in FIG. 1 and a discharge line 200 coupled to the rear end; A mass flow rate meter (MFM) provided in the feed line 100 and a proportional control valve; And a discharge pressure control valve provided in the discharge line.

본 발명과 같이 비례제어밸브를 이용한 경우 비례제어밸브, 압력센서를 이용하여 압력을 제어하고 BCV(배출압력제어밸브)를 이용하여 가스 유량 조절이 가능하다. BCV가 close 조건인 경우 스택에서 소모되는 유량만큼만 비례제어밸브를 통해 공급되고 BCV open 각도에 따라 가스가 과급되어 가스화학양론비 조절이 가능하다.When a proportional control valve is used as in the present invention, the pressure can be controlled using a proportional control valve and a pressure sensor, and the gas flow rate can be controlled using a BCV (discharge pressure control valve). If the BCV is in the close condition, only the flow amount consumed in the stack is supplied through the proportional control valve and the gas is supercharged according to the BCV open angle, so that the gas stoichiometry can be adjusted.

또한, 비례제어 밸브를 이용하는 경우 압력 제어 속도가 수백msec 이내로 매우 빨라 차량용 연료전지 시스템의 운전 모드 모사가 가능하다. 비례 제어 밸브의 경우 기존 차량 시스템과 달리 수소/공기 공급측에 동시 적용 가능하다.
In addition, when the proportional control valve is used, the pressure control speed is very fast within several hundreds of msec, so that the operation mode simulation of the fuel cell system of the vehicle is possible. Proportional control valves can be applied to hydrogen / air supply side unlike existing vehicle systems.

동시에, 도 1과 같이 질량유량측정계는 비례제어밸브의 상류지점에 마련될 수 있다. 그리고 도 2와 같이 질량유량측정계는 비례제어밸브의 하류지점에 마련하는 것도 가능하다.
At the same time, as shown in Fig. 1, the mass flowmeter can be provided at the upstream point of the proportional control valve. As shown in FIG. 2, the mass flowmeter may be provided at a point downstream of the proportional control valve.

한편, 본 발명의 경우 배출라인(200)에서 분기되어 공급라인으로 연결되는 재순환라인(300);이 더 포함될 수 있다. 재순환라인(300)은 배출압력제어밸브의 전단에서 분기될 수 있다. 그리고 재순환라인은 비례제어밸브의 후단에서 연결될 수 있다.Meanwhile, in the case of the present invention, a recirculation line 300 branched from the discharge line 200 and connected to the supply line may be further included. The recirculation line 300 may be branched at the front end of the discharge pressure control valve. And the recirculation line may be connected downstream of the proportional control valve.

또한, 공급라인에서 연료전지 전단에 마련된 이젝터;를 더 포함하고, 재순환라인(300)은 이젝터에 연결될 수 있다.Further, the apparatus further includes an ejector provided at a front end of the fuel cell in the supply line, and the recycle line 300 may be connected to the ejector.

가스 공급 시스템의 경우 재순환 시스템 및 일방향 시스템 두 가지로 병렬 구성 및 운전이 가능하다. 이에 따라 본 발명의 적용시 수백만원 이상 고가의 MFC 삭제로 원가 절감이 가능하다.
In the case of the gas supply system, it is possible to configure and operate in parallel with the recirculation system and the unidirectional system. Accordingly, when the present invention is applied, it is possible to reduce the cost by eliminating the expensive MFC of several million won or more.

즉, 비례제어밸브, 압력 센서, MFM(질량유량측정계) 및 BCV(배출압력제어밸브)를 이용하여 가스 공급 및 압력 제어가 수백 msec 이내로 가능하다. 비례제어밸브, 압력센서를 이용하여 압력을 제어하고 BCV 및 MFM을 이용하여 가스 유량 조절이 가능하다.That is, the gas supply and pressure control can be performed within several hundreds of milliseconds by using proportional control valve, pressure sensor, MFM (Mass flowmeter) and BCV (exhaust pressure control valve). The proportional control valve and the pressure sensor are used to control the pressure and the gas flow rate can be adjusted by using BCV and MFM.

또한, BCV가 close 조건인 경우 스택에서 소모되는 유량만큼만 비례제어밸브를 통해 공급되어 가스화학양론비가 1이다. 그리고 BCV open 각도에 따라 가스가 과급되어 가스화학양론비 조절이 가능하다.Also, if the BCV is in a close condition, only the flow rate consumed in the stack is supplied through the proportional control valve and the gas stoichiometric ratio is 1. The gas is supercharged according to the BCV open angle, and the gas stoichiometry ratio can be adjusted.

한편, 비례제어 밸브를 이용하는 경우 압력 제어 속도가 수백msec 이내로 매우 빠르고 제어 편차 범위가 작다. 비례 제어 밸브의 경우 수소/공기 공급측에 동시 적용 가능하다. 가스 공급 시스템의 경우 재순환 시스템 및 일방향 시스템 두 가지 병렬 구성 및 운전이 가능하다.
On the other hand, when a proportional control valve is used, the pressure control speed is very fast, within a few hundred msec, and the control deviation range is small. Proportional control valves can be applied simultaneously to the hydrogen / air supply side. In the case of a gas supply system, two parallel configurations and operation are possible: a recirculation system and a unidirectional system.

본 발명은 특정한 실시예에 관련하여 도시하고 설명하였지만, 이하의 특허청구범위에 의해 제공되는 본 발명의 기술적 사상을 벗어나지 않는 한도 내에서, 본 발명이 다양하게 개량 및 변화될 수 있다는 것은 당 업계에서 통상의 지식을 가진 자에게 있어서 자명할 것이다.
While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

100 : 공급라인 200 : 배출라인100: Supply line 200: discharge line

Claims (7)

연료전지 전단에 결합된 공급라인 및 후단에 결합된 배출라인;
공급라인에 마련된 질량유량측정계와 비례제어밸브; 및
배출라인에 마련된 배출압력제어밸브;를 포함하는 연료전지 평가시스템.A supply line coupled to the front end of the fuel cell and a discharge line coupled to the rear end;
A mass flowmeter and a proportional control valve provided in the feed line; And
And a discharge pressure control valve provided in the discharge line. 청구항 1에 있어서,
질량유량측정계는 비례제어밸브의 상류지점에 마련된 것을 특징으로 하는 연료전지 평가시스템.The method according to claim 1,
Wherein the mass flow meter is provided at a position upstream of the proportional control valve. 청구항 1에 있어서,
질량유량측정계는 비례제어밸브의 하류지점에 마련된 것을 특징으로 하는 연료전지 평가시스템.The method according to claim 1,
Wherein the mass flow rate meter is provided at a point downstream of the proportional control valve. 청구항 1에 있어서,
베출라인에서 분기되어 공급라인으로 연결되는 재순환라인;이 더 포함된 것을 특징으로 하는 연료전지 평가시스템.The method according to claim 1,
And a recirculation line branched from the return line and connected to the supply line. 청구항 4에 있어서,
재순환라인은 배출압력제어밸브의 전단에서 분기된 것을 특징으로 하는 연료전지 평가시스템.The method of claim 4,
And the recirculation line is branched at a front end of the discharge pressure control valve. 청구항 4에 있어서,
재순환라인은 비례제어밸브의 후단에서 연결된 것을 특징으로 하는 연료전지 평가시스템.The method of claim 4,
And the recirculation line is connected downstream of the proportional control valve. 청구항 4에 있어서,
공급라인에서 연료전지 전단에 마련된 이젝터;를 더 포함하고, 재순환라인은 이젝터에 연결된 것을 특징으로 하는 연료전지 평가시스템.The method of claim 4,
Further comprising: an ejector provided at a front end of the fuel cell in a supply line, wherein the recycle line is connected to the ejector.
KR1020130156980A 2013-12-17 2013-12-17 Fuelcell evaluating system KR101583883B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100731148B1 (en) * 2006-06-20 2007-06-22 주식회사 하이젠 A performance test equipments of multi-channel fuel cell
KR20110082173A (en) * 2008-11-14 2011-07-18 로베르트 보쉬 게엠베하 Fuel cell system with energy-efficient reactant recycling
KR20130013644A (en) 2011-07-28 2013-02-06 포스코에너지 주식회사 Fuel cell simulator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100731148B1 (en) * 2006-06-20 2007-06-22 주식회사 하이젠 A performance test equipments of multi-channel fuel cell
KR20110082173A (en) * 2008-11-14 2011-07-18 로베르트 보쉬 게엠베하 Fuel cell system with energy-efficient reactant recycling
KR20130013644A (en) 2011-07-28 2013-02-06 포스코에너지 주식회사 Fuel cell simulator

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