Results 1 to 10 of about 1,027 (160)
IEEE Access, 2019 The five-level hybrid clamped inverter (5L-HC) is a promising new topology for medium-voltage applications. However, to minimize the capacitors and ensure good performance of the converter, capacitor voltage ripples, as well as voltage balancing control,
Ze Wang +4 more
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Energies, 2018 This paper provides a comprehensive analysis of the capacitors voltage switching ripple for three-phase three-level neutral point clamped (NPC) inverter topologies.
Manel Hammami +3 more
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IEEE Open Journal of Power ElectronicsThis paper evaluates the submodule capacitor current and voltage ripple of a direct three-phase to single-phase ac/ac MMC under unbalanced grid conditions.
Ygor Pereira Marca +3 more
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A hybrid phase-shifted PWM technique for a 13-level inverter with low switch count and suppressed charging spike [PDF]
Scientific ReportsThis paper introduces a novel 13-level switched capacitor inverter. The proposed structure, comprising ten switches, five diodes, one input DC source, and five capacitors, can generate an alternating output voltage with a sixfold increase in the output ...
Hossein Mansourizadeh +3 more
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A two-stage dc–dc converter with high voltage gain and reduced current ripple for efficient PV energy harvesting [PDF]
Scientific ReportsPV systems require a dc–dc converter to operate at the maximum power point (MPP). However, switching based operation of these converters causes ripple current.
Hakan Akca
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Techniques to Reduce Capacitor Voltage Ripples in Multilevel Inverters
IEEE Access, 2023 Reducing ripples on the capacitor voltage has two benefits: improved output waveform quality and accurate converter size. During the generation of a given output voltage level, the factor “Inherent Redundant Paths (IRPs)” has a considerable impact on the characteristics of multilevel inverter design.
Shivam Prakash Gautam +6 more
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IEEE Access, 2021 Nowadays, photovoltaic (PV) systems based on centralized topology with a three-level T-type (3LT2) inverter are used to decrease investment costs and increase conversion efficiency.
Mohammadreza Lak +2 more
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Improved Operation of the Step-Up Converter with Large Voltage Gain and Low Voltage on Capacitors
Applied Sciences, 2023 This work proposes an improvement for a recently proposed converter. The discussed converter is the so-called low-voltage in capacitors (LVC). It offers a larger voltage gain compared to the standard step-up or boost converter while operating with a ...
Julio C. Hernandez-Ochoa +3 more
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Alexandria Engineering Journal, 2022 A symmetrical multilevel dc-dc boost converter with ripple reduction structure for solar PV Systems is analyzed in this paper. The converter is structured by differentially connecting two multilevel boost converters.
Ahmed Allehyani
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Reduction of Half-Arm Current Stresses and Flying-Capacitor Voltage Ripples of Flying-Capacitor MMCs [PDF]
IEEE Access, 2020 In this paper, a new control scheme that can reduce the current stresses on switching devices, flying capacitors, and inductors for flying-capacitor modular multilevel converters (FC-MMCs) is proposed, which is based on redistribution of power difference between upper and lower arms through the flying capacitors.
Duc Dung Le 0001, Dong-Choon Lee
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