Three-phase interleaved high step-up boost converter with voltage multiplier for fuel cell power system

2015 ◽  
Author(s):  
Longlong Zhang ◽  
Dehong Xu ◽  
Haijin Li ◽  
Guoqiao Shen ◽  
Min Chen
Keyword(s):  
Fuel Cell ◽  
Power System ◽  
Boost Converter ◽  
Voltage Multiplier ◽  
Three Phase

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.

scholarly journals Implementation of Three Phase High Voltage Gain Boost Converter for Fuel Cell

2020 ◽  
Vol 06 (09) ◽  
pp. 156-160
Author(s):  
N. Lalitha Rani and S. Ramyaka
Keyword(s):  
Fuel Cell ◽  
High Voltage ◽  
Output Voltage ◽  
Electric Energy ◽  
Boost Converter ◽  
High Voltage Gain ◽  
Three Phase ◽  
In Series ◽  
Converter Topology ◽  
And Inversion

Generally, the power generating from the Fuel cell is an electrochemical reaction between H2 and oxygen and it generates electric energy, and the by-product is water vapour. However, the output from the fuel cell systemsis very low, then it becomes necessary to connect more number of cells in series to improve the output. The proposed method electrically divides the fuel cell stack into different sections, and each stack is powered by a direct boost inverter. This paper proposes a concept of high voltage dc-dc boost converter topology for a three phase systemto a typical output voltage from the fuel cell as a stand-alone supply. The main advantage of the proposed boost inverter method include ability to deliver the operations of both boosting and inversion of the power in only one stage, compactness, and economical. The output voltage from the fuel cell is a voltage controlled method and output from the battery is a current controlled method. Analysis, and Simulation are taken from a 1kW prototype.

scholarly journals Real-Time Implementation of a New MPPT Control Method for a DC-DC Boost Converter Used in a PEM Fuel Cell Power System

Actuators ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 105
Author(s):  
Mohamed Derbeli ◽  
Oscar Barambones ◽  
Mohammed Yousri Silaa ◽  
Cristian Napole
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Power System ◽  
Control Method ◽  
Sliding Mode ◽  
Pem Fuel Cell ◽  
Pem Fuel Cells ◽  
Boost Converter ◽  
High Order ◽  
Maximum Power

Polymer electrolyte membrane (PEM) fuel cells demonstrate potential as a comprehensive and general alternative to fossil fuel. They are also considered to be the energy source of the twenty-first century. However, fuel cell systems have non-linear output characteristics because of their input variations, which causes a significant loss in the overall system output. Thus, aiming to optimize their outputs, fuel cells are usually coupled with a controlled electronic actuator (DC-DC boost converter) that offers highly regulated output voltage. High-order sliding mode (HOSM) control has been effectively used for power electronic converters due to its high tracking accuracy, design simplicity, and robustness. Therefore, this paper proposes a novel maximum power point tracking (MPPT) method based on a combination of reference current estimator (RCE) and high-order prescribed convergence law (HO-PCL) for a PEM fuel cell power system. The proposed MPPT method is implemented practically on a hardware 360W FC-42/HLC evaluation kit. The obtained experimental results demonstrate the success of the proposed method in extracting the maximum power from the fuel cell with high tracking performance.

Efficient and Robust Power Management of Reduced Cost Distributed Power Electronics for Fuel-Cell Power System

2009 ◽  
Vol 7 (1) ◽  
Author(s):  
Sudip K. Mazumder ◽  
Sanjaya Pradhan
Keyword(s):  
Fuel Cell ◽  
Power System ◽  
Power Electronics ◽  
Power Management ◽  
Dynamic Change ◽  
Power Converter ◽  
Boost Converter ◽  
Optimal Number ◽  
Proton Exchange ◽  
Fuel Cell Stack

Batteries in a fuel-cell power system are essential to providing the additional power during the sharp load-transients. This necessitates a power-electronics subsystem (PES), which controls the energy flow between the fuel-cell stack, the battery, and the application load during the transient and in the steady states. In this paper, a distributed PES (comprising a multimodule dc-dc boost converter) is proposed for a fuel-cell and battery based hybrid power system, which provides higher cost effectiveness, efficiency, and footprint savings. This is realized by interfacing both the fuel-cell stack and the battery to the distributed PES using transfer switches, which are so controlled such that during a load transient, power from both the battery power and the fuel-cell stack is fed to the load via the PES while the stack energy input is adjusted for the new load demand. During the steady-state, the control implements a dynamic-power-management strategy such that only an optimal number of power converter modules of the distributed PES are activated yielding improved optimal energy-conversion efficiency and performance. Furthermore, using a composite Lyapunov-method-based methodology, the effect of dynamic change in the number of active power converter modules with varying load conditions on the stability of the PES is also outlined. Finally, the PES concept is experimentally validated by interfacing a multimodule bidirectional dc-dc boost converter with Nexa® proton exchange membrane (PEM) fuel-cell stacks from Ballard Power Systems.

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