A Fuel-Cell Based Boost Converter Model Using Euler-Lagrange Equation
الموضوعات :
Atila Skandarnezhad
1
(
Department of Electrical Engineering, Iran University of Technology(IUST), Tehran, Iran
)
الکلمات المفتاحية: Boost converter, Dynamic Modeling, fuel cell, Euler-Lagrange Equation,
ملخص المقالة :
This paper presents a new modeling technique for fuel cell based switching converters. Often a step-up converter is used in the fuel cell applications due to its relative low voltage. Here a boost converter is used to convert the fuel cell voltage to the desired load level. The aim of this paper is to study through analysis and simulation, the voltage mode control and dynamic modeling of series interconnected topology of a fuel cell based system. Euler-Lagrange (EL) equation is used here as a modeling technique which relies on the energy balance equilibrium because fuel cell based systems can be considered as an energy processing structure. The fuel cell must be protected against the current harmonics or sudden transients so that it provides the regulated voltage for output load. We use a LC filter between fuel cell and converter to prevent the current harmonics from reaching the fuel cell since this may lead to oxygen starvation phenomena around the electrodes surface or other faults. The proposed modelling procedure is applicable for any other converter based on fuel cells. Finally, simulation is done by PSIM and MATLAB softwares to validate the proposed modeling technique. We run both the frequency and time domain analysis to show that the proposed modeling technique coincides exactly with the simulation results.
[1] A. Skandarnezhad, A. Rahmati, A. Abrishamifar, "Analysis and control of a unity power factor electrical-vehicle charger using dc clamped SEPIC converter with electro-magnetic compatibility", Compt. rend. Acad. bulg. Sci., 69(07)(2016): 911-920.
[2] P. Aykov, "Computer modelling of a linear turbine for extracting energy from low-flowing waters", Compt. rend. Acad. bulg. Sci., 67(08)(2014): 1159-1164.
[3] C. Y. Lee, S.J. Lee, Y.M. Lo, Y.M. Liu, "Fuel cells dynamical analysis and modeling", Int. J. Electrochem. Sci., (09) (2014): 272-281.
[4] V. Duindam, A. Macchelli, S. Stramigioli, H. Bruyninckx, "Modeling and Control of Complex Physical Systems", Springer, 1st Ed., 2009.
[5] S. Savov, I. Popchev, "Non-iterative improvement of trace bounds for the Lyapunov equation solution", Compt. rend. Acad. bulg. Sci., 66(05)(2015): 733-738.
[6] N. Obanov, N. Tezak," Soft-switching converter for tram auxiliary power supply", 16th Conf. PEMC-Turkey, pp. 270-275,2014.
[7] B. K. Ose," Power electronics and motion control - technology status and recent trends", IEEE T. Ind. Appl., 29(05)(1993): 902-909.
[8] S. Ildirmaz, H. Bodur," A new ZVT snubber cell for PWM-CCM-PFC boost converters", 17th Conf. EPE’15-ECCE-Europe, pp. 590-600,2015.
[9] V. Udriashov, "A modified maximum likelihood method for estimation of mutual delay and power of noise signals by bistatic radiometer", Compt. rend. Acad. bulg. Sci., 68(05)(2015): 631-640.
