scholarly journals Desing of Multiphase Boost Converter for Hybrid Fuel Cell/Battery Power Sources

10.5772/13113 ◽  
2010 ◽  
Author(s):  
Milos Zivanov ◽  
Boris Sasic ◽  
Miroslav Lazic
Keyword(s):  
Fuel Cell ◽  
Boost Converter ◽  
Power Sources ◽  
Battery Power

Three Input DC-DC Boost Converter for Hybrid Power System with Multilevel Inverter

2013 ◽  
Vol 768 ◽  
pp. 398-403
Author(s):  
Jagriti Narayan ◽  
R. Johnson Uthayakumar
Keyword(s):  
Fuel Cell ◽  
Power System ◽  
Alternative Energy ◽  
Input Power ◽  
Boost Converter ◽  
Multilevel Inverter ◽  
Power Sources ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Power Switches

A new three input DC-DC boost converter fed symmetrical multilevel inverter is proposed. The converter interfaces two unidirectional input power ports and a bidirectional port to battery in a unified structure. This converter uses hybrid alternative energy source such as Photo Voltaic (PV) source, Fuel Cell (FC) source, and Battery. Supplying the output load, charging or discharging the battery can be made by the PV and the FC power sources individually or simultaneously. The proposed structure utilizes only four power switches that are independently controlled with four different duty ratios. Proposed inverter uses two cells for five level output. Boost converter provided hybrid sources to multilevel inverter. Here we promote inverter for attain a pure sinusoidal harmonics free ac application.Key Words-Photovoltaic/fuel cell (PV/FC)/battery hybrid power system, three-input dcdc boost converter.

Comparative Study of Adaptive Hamiltonian Control Laws for DC Microgrid Stabilization: An Fuel Cell Boost Converter

2021 ◽  
Author(s):  
Damien Guilbert ◽  
Babak Nahid-Mobarakeh ◽  
Serge Pierfederici ◽  
Nicu Bizon ◽  
Pongsiri Mungporn ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Comparative Study ◽  
Smart Grids ◽  
Boost Converter ◽  
Proton Exchange ◽  
Small Scale ◽  
Control Law ◽  
Energy Storage Devices ◽  
Control Laws ◽  
Power Sources

Future smart grids can be seen as a system of interlinked microgrids, including small-scale local power systems. They consist of main power sources, external loads, and energy storage devices. In these microgrids, the negative incremental impedance behavior of constant power loads (CPLs) is of major concern since it can lead to instability and oscillations. To cope with this issue, this article aims to propose a comparative study of adaptive Hamiltonian control laws, also known as interconnection and damping–assignment–passivity–based controllers (IDA-PBC). These control laws are developed to ensure the stability of the DC output voltage of a boost converter supplied by a proton exchange membrane fuel cell (PEMFC) source. To validate the develop control laws, experiments have been performed on a fit test bench including a real 2.5 kW PEMFC stack (hydrogen is supplied by a reformer engine), a DC-DC step-up circuit, and a real-time controller dSPACE (implementation of the control laws). Moreover, a comparative study has been carried out between the proposed three adaptive Hamiltonian control laws and a classic linear cascaded proportional–integral (PI) control law. The obtained results by simulations through MATLAB/SimulinkTM and experimentally have allowed demonstrating that the third Hamiltonian control law presents the best performances over the other control laws.

Coordinated Converter-Charger for Hybrid Fuel Cell-Battery Power Sources

2013 ◽  
Vol 284-287 ◽  
pp. 2490-2493
Author(s):  
Jenn Jong Shieh ◽  
Chung Hsing Chao
Keyword(s):  
Fuel Cell ◽  
Cell System ◽  
Fuel Cell System ◽  
Power Sources ◽  
Load Demand ◽  
Battery Power ◽  
Layer Effect ◽  
Power Stabilizer ◽  
Water Gas ◽  
Transfer Mechanisms

Both the fuel cell and battery have timely dynamic response to the step-profile load input. The current overshoot followed by a voltage undershoot behavior happen the step-up load, particularly. These phenomena are closely related to mass transfer mechanisms such as the water/gas transport by the redistribution of membrane water content in the fuel cell and the charge double-layer effect in the battery. When the load demand is beyond the rated power of the fuel cell system, the battery immediately powers to the load with a transient discharging current especially in the step-profile load power. This study presents a new control strategy for hybrid fuel cell-battery power sources with transient and overshoot considered. The results show that the proposed hybrid fuel cell-battery power source not only acting as a power stabilizer but also dynamically satisfying the step-profile load demand.

Simulation and Hardware and Implementation of Directly Coupled Four Phase Interleaved Boost Converter for Fuel Cells

2013 ◽  
Vol 768 ◽  
pp. 109-118
Author(s):  
M. Tamilarasi ◽  
R. Seyezhai
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
High Efficiency ◽  
Boost Converter ◽  
Passive Components ◽  
Power Sources ◽  
System A ◽  
Low Emission ◽  
Interleaved Boost Converter ◽  
Sustainable Power

Fuel cell is one of the promising renewable and sustainable power sources because of its high power density and very low emission. In order to design a highly efficient fuel cell power system, a suitable DC-DC converter is required. In this paper, a four-phase directly coupled Interleaved Boost Converter (IBC) for fuel cell is proposed. A four-phase structure with interleaved control is proposed to reduce the input current ripples, the output voltage ripples, and the size of passive components with high efficiency compared with the other topologies. Mathematical analysis of overall current ripple, design of inductance and other components is investigated. Simulation study of the proposed converter interfaced with fuel cells is carried out using MATLAB. A prototype is built using MOSFET to validate the simulation results.

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