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A two-stage dc–dc converter with high voltage gain and reduced current ripple for efficient PV energy harvesting [PDF]

open access: yesScientific Reports
PV 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
doaj   +2 more sources

Evaluation of DC-link voltage ripple in five-phase PWM voltage source inverters [PDF]

open access: yesThe Journal of Engineering, 2019
This paper presents the analysis of the DC-link voltage switching ripple in five-phase PWM voltage source inverters with balanced load. The analysis is particularly important for the design and selection of a DC-link capacitor making it possible to meet ...
M. Vujacic   +4 more
doaj   +4 more sources

Modeling and Mitigation Control of the Submodule-Capacitor Voltage Ripple of a Modular Multilevel Converter under Unbalanced Grid Conditions

open access: yesEnergies, 2021
A modular multilevel converter’s (MMC’s) submodule (SM)-capacitor voltage will increase under unbalanced grid conditions. Depending on the imbalance level, the voltage ripple can be considerably high, and it can exceed the pre-defined safe limits.
Songda Wang   +4 more
doaj   +1 more source

Perancangan Interleaved Boost Converter Dari 8-12 ke 24V Dengan Umpan Balik Tegangan

open access: yesJurnal Teknik Elektro Indonesia, 2023
The use of DC voltage is now increasingly massive with various needs, but the voltage source obtained tends to be unstable to meet the existing electrical load, so it is necessary to adjust the voltage so that it works properly and there is no damage to ...
Adi Nurcahyo   +3 more
doaj   +1 more source

A New Fracture Detection Algorithm of Low Amplitude Acoustic Emission Signal Based on Kalman Filter-Ripple Voltage

open access: yesSensors, 2021
In this study, an acoustic emission (AE) sensor was utilized to predict fractures that occur in a product during the sheet metal forming process. An AE activity was analyzed, presuming that AE occurs when plastic deformation and fracturing of metallic ...
Seong-Min Jeong   +2 more
doaj   +1 more source

Adaptive on Time Controlled Double-Line- Frequency Ripple Suppressor With Fast Dynamic Response and High Efficiency

open access: yesIEEE Access, 2020
Due to the input power and output power do not match in real time, single-stage power factor correction converters have large double-line-frequency ripple at the output voltage.
Xi Chen   +6 more
doaj   +1 more source

Study of Capacitor & Diode Aging effects on Output Ripple in Voltage Regulators and Prognostic Detection of Failure [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2022
Objectives: To design and simulate a buck converter and detector circuit which can prognostically indicate the power supply failure. Failure of Aluminium Electrolytic Capacitor (AEC) is considered as the parameter causing the power supply failure.
Preethi Sharma K, T. Vijayakumar
doaj   +1 more source

Suppression of Ripples of Controllable Rectifiers for Power Supply of Magnetic Systems

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2022
A number of requirements are imposed on installations associated with regulated DC sources, including low voltage and current ripple in the load, as well as a wide range of output current variation. Such installations are traditionally made on controlled
M. S. Lur’e   +2 more
doaj   +1 more source

Active-Clamp Resonant Power Factor Correction Converter With Output Ripple Suppression

open access: yesIEEE Access, 2021
An active-clamp resonant power factor correction converter with output ripple suppression is proposed and analyzed. It combines a buck power factor correction (PFC) unit and a resonant dc-dc unit by sharing one active switch.
Keyu Cao   +4 more
doaj   +1 more source

Optimized Space-Vector Modulation to Reduce Neutral Point Current for Extending Capacitor Lifetime in Three-Level Inverters

open access: yesIEEE Access, 2020
In this paper, an optimized space-vector modulation (SVM) to reduce DC-link ripple current in three-level inverters is presented. Various types of capacitors can be utilized to balance the voltage in the DC-link of voltage source inverters.
Sang-Won An, Seok-Min Kim, Kyo-Beum Lee
doaj   +1 more source

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