Efficient soft-switched boost converter for fuel cell applications

Saha, Shib Sankar

doi:10.1016/j.ijhydene.2010.10.071

Cited by 37 publications

(11 citation statements)

References 6 publications

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“…To minimize the inductor current ripple and the output voltage ripple to the desired values, the inductor and capacitor must be resized according to Equations (14) and (15). Normally, the major problem exists due to the size, weight and cost of high power inductor and capacitor.…”

Section: Interleaved Boost Convertermentioning

confidence: 99%

“…The control of a multiphase interleaved boost DC-DC converter for classic voltage sources, i.e., batteries, usually consists of an inner current control loop and outer voltage control loop [14]. This kind of control has shown good performance in regulating the output voltage [15,16]. However, the control of the interleaved boost converter associated with PEMFC should follow different strategies due the non-linear characteristics of the PEMFC [17,18].…”

Section: Introductionmentioning

confidence: 99%

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A Neural Network-Based Four Phases Interleaved Boost Converter for Fuel Cell System Applications

et al. 2018

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This paper presents a simple strategy for controlling an interleaved boost converter that is used to reduce the current fluctuations in proton exchange membrane fuel cells, with high impact on the fuel cell lifetime. To keep the output voltage at the desired reference value under the strong fluctuations of the fuel flow rate, fuel supply pressure, and temperature, a neural network controller is developed and implemented using Matlab-Simulink (R2012b, MathWorks limited, London, UK). The advantage of this controller resides in its simplicity, where limited number of tests are carried out using Matlab-Simulink to construct it. To investigate the robustness of the proposed converter and the neural network controller, strong variations of the fuel flow rate, fuel supply pressure, temperature and air supply pressure are applied to both the fuel cell and the neural network controller of the converter. The simulation results show the effectiveness and the robustness of the both the proposed controller and converter to control the load voltage and minimize the current and voltage ripples. As a result of that, fuel cell current oscillations are considerably reduced on the one hand, while on the other hand, the load voltage is stabilized during transient variations of the fuel cell inputs.

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Section: Interleaved Boost Convertermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Neural Network-Based Four Phases Interleaved Boost Converter for Fuel Cell System Applications

et al. 2018

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“…Particularly, DC/DC choppers were commonly used for voltage stability and improvement of controllability in smart grid applications. There are two basic chopper types: buck [15][16] and boost [17][18] for DC/DC conversion. Switched mode power supply technique is commonly used to control the output voltage of DC/DC choppers.…”

Section: B Dc/dc Convertermentioning

confidence: 99%

Power converters modeling in Matlab/Simulink for microgrid simulations

Karabiber

Keles

Kaygusuz

et al. 2016

2016 4th International Istanbul Smart Grid Congress and Fair (ICSG)

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Smart grid is a developing field for energy researchers. It offers technological improvements to have more controllable, reliable and sustainable power grids. Especially, the decreasing trend of fuels has pressurized to pay researchers' attention to renewable energy sources such as solar systems and wind turbines. The renewable energy sources generate electric power in different characteristics. Therefore, power converters are needed to integrate these sources in a grid to provide power flows among the sources and loads. This study presents Matlab/Simulink models of power converters and dynamic load structure, which are useful for smart grid simulations. These simulations can be used for research and educational purposes. Characteristic parameters of the models are suitable for existing devices. For power converters, Pulse-width Modulation technique is utilized that it is widely used in industry. The designed power converters and dynamic load models are tested in a microgrid application. The simulation results show that the designed power components are useful for smart grid simulation studies.

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“…Winding losses comprise DC losses and AC losses, which in turn depend on inductor current ripple, skin effect and proximity effect. Complete inductor losses evaluation yields (20).…”

Section: Inductor Lossesmentioning

confidence: 99%