scholarly journals Modeling a PV-FC-Hydrogen Hybrid Power Generation System

2017 ◽  
Vol 7 (2) ◽  
pp. 1455-1459 ◽  
Author(s):  
S. Javadpoor ◽  
D. Nazarpour
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Reducing Power ◽  
Water Electrolysis ◽  
Cell System ◽  
Hydrogen Gas ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Software Modeling ◽  
Alkaline Water Electrolysis

Electrical grid expansion onto remote areas is often not cost-effective and/or technologically feasible. Thus, isolated electrical systems are preferred in such cases. This paper focuses on a hybrid photovoltaic (PV)-hydrogen/fuel cell (FC) system which basic components include a PV, a FC, alkaline water electrolysis and a hydrogen gas tank. To increase the response rate, supercapacitors or small batteries are usually employed in such systems. This study focuses on the dynamics of the system. In the suggested structure, the PV is used as the main source of power. The FC is connected to the load in parallel with the PV by a transducer in order to inject the differential power while reducing power generation in relation to power consumption. An electrolyzer is used to convert the surplus power to hydrogen. This study studies a conventional hybrid photovoltaic-hydrogen/fuel cell system to evaluate different loading behaviors. Software modeling is done for the suggested hybrid system using MATLAB/SIMULINK.

scholarly journals Improved Voltage Drop Compensation Method for Hybrid Fuel Cell Battery System

Electronics ◽  
2018 ◽  
Vol 7 (11) ◽  
pp. 331 ◽  
Author(s):  
Tae-Ho Eom ◽  
Jin-Wook Kang ◽  
Jintae Kim ◽  
Min-Ho Shin ◽  
Jung-Hyo Lee ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Voltage Drop ◽  
Cell System ◽  
Compensation Method ◽  
Pure Hydrogen ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Fuel Cell System ◽  
Output Current ◽  
Battery System

In this paper, a voltage drop compensation method for hybrid hydrogen fuel cell battery system, with a hydrogen recirculation powering a forklift, is studied. During recirculating hydrogen fuel to recycle hydrogen that has not reacted enough at the system, impurities can be mixed with the hydrogen fuel. This leads to low hydrogen concentration and a drop in the output voltage of the fuel cell system. In excessive voltage drop, the fuel cell system can be shutdown. This paper proposes a voltage drop compensation method using an electrical control algorithm to prevent system shutdown by reducing voltage drop. Technically, voltage drop is typically caused by three kinds of factors: (1) The amount of pure hydrogen supply; (2) the temperature of fuel cell stacks; and (3) the current density to catalysts of the fuel cell. The proposed compensation method detects voltage drop caused by those factors, and generates compensation signals for a controller of a DC–DC converter connecting to the output of the fuel cell stack; thus, the voltage drop is reduced by decreasing output current. At the time, insufficient output current to a load is supplied from the batteries. In this paper, voltage drop caused by the abovementioned three factors is analyzed, and the operating principle of the proposed compensation method is specified. To verify this operation and the feasibility of the proposed method, experiments are conducted by applying it to a 10 kW hybrid fuel cell battery system for a forklift.

Development of an Evaporatively Cooled Hydrogen Fuel Cell System and its Vehicle Application

2013 ◽  
Author(s):  
Alan Warburton ◽  
Dave Mossop ◽  
Ben Burslem ◽  
Pratap Rama ◽  
Paul Adcock ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Cell System ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Fuel Cell System

scholarly journals Analysis of Financial Risk and Ventilation Effect in the Hydrogen Fuel Cell System

2012 ◽  
Vol 23 (1) ◽  
pp. 85-114
Author(s):  
이중희 ◽  
이홍주 ◽  
김태옥 ◽  
Lee In Bok ◽  
MyungHwan Hwang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Financial Risk ◽  
Cell System ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Fuel Cell System

Architecture and Engineering of Hydrogen Fuel Cell Power Generation Based on Renewable Energy

2016 ◽  
Vol 708 ◽  
pp. 110-117
Author(s):  
Imam Djunaedi ◽  
Haifa Wahyu ◽  
Sugiyatno
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Solar Cell ◽  
Energy Storage ◽  
Fuel Cell ◽  
Wind Turbine ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Generation System ◽  
Power Generation System

The paper presents an architecture and engineering of hydrogen fuel cell electric power generation system based on renewable energy that already installed in Tenjolaya village, Wanassalam sub-district, Lebak - Banten Province. It also discloses some important information as well as some valuable experiences from the pilot plant operation. The renewable electric power generation system combines wind turbine, photovoltaic, hydrogen electrolysis and fuel cell. The basic design of this system is focused on energy storage in the form of hydrogen gas that can be converted back into electricity by using fuel cell units. The engineering development was done to address the issues on limited energy storage in the battery unit which has several drawbacks i.e. short battery lifetime, limited storage capacity and rigorous and continuous maintenance schedule. To enable remote control and monitoring, a web based monitoring system was developed. From the monitoring system the following information are obtained: the amount of electrical power produced by the wind turbine that was intermittent and depends on time that reached 3000 W; similar pattern is observed from the output power of solar PVs and a maximum point of the solar cell power generation was 640 Watt; the time of electricity production by the wind turbine and the solar cell is complementary to each other in every one day cycle. Two valuable experiences have been gained those are: the location near sea shore has a very corrosive air that damages the wind turbine component, and the use of fuel cell requires high investment cost.

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