Analysis of kinetic energy recovery system based on inertial flywheel

Reyes, Iván A.; Claudio, A.; Flores, E.; Lopez, Manuel

doi:10.1109/ciep.2018.8573357

Cited by 1 publication

(2 citation statements)

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“…In (12), the output frequency is four times higher than the switching frequency ( f s ) as a result of the ripple cancellation effect [30]. Consequently, the output capacitor reduces its capacitance value considerably.…”

Section: Operation Of the Multiphase Buck Convertermentioning

confidence: 99%

“…A multiphase converter is a good solution for high power, high current, and low ripple of voltage and current output applications [29]. The advantages of multiphase techniques are: reducing the stress on the devices, reducing the filter size, and decreasing the voltage and current ripple at the converter output [30,31]. However, most published papers require current sensors in the control loops of each phase to achieve balanced phase currents and improve the dynamic response of the converter [32][33][34].…”

Section: Introductionmentioning

confidence: 99%

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Study of the Effects of Current Imbalance in a Multiphase Buck Converter for Electric Vehicles

Reyes-Portillo

Claudio-Sánchez

Morales-Saldaña

et al. 2022

WEVJ

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The excessive use of fossil fuels has caused great concern due to modern environmental problems, particularly air pollution. The above situation demands that different areas of research aim at a sustainable movement to reduce CO2 emissions caused by non-renewable organic fuels. A solution to this problem is the use of Electric Vehicles (EV) for mass transportation of people. However, these systems require high-power DC/DC converters capable of handling high current levels and should feature high efficiencies to charge their batteries. For this application, a single-stage converter is not viable for these applications due to the high current stress in a switch, the low power density, and its low efficiency due to higher switching losses. One solution to this problem is Multiphase Converters, which offer high efficiency, high power density, and low current ripple on the battery side. However, these characteristics are affected by the current imbalance in the phases. This paper is focused on the study of the effects of the current imbalance in a Multiphase Buck Converter, used as an intermediate cover between a power supply and the battery of an EV. Analyzing the efficiency and thermal stress parameters in different scenarios of current balance and current imbalance in each phase.

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Section: Operation Of the Multiphase Buck Convertermentioning

confidence: 99%