Results 21 to 30 of about 7,480 (292)
Impact of PWM strategies on RMS current of the DC-link Voltage Capacitor of a dual-three phase drive [PDF]
, 2014 The major drawback of usual dual three-phase AC machines, when supplied by a Voltage Source Inverter (VSI), is the occurrence of extra harmonic currents which circulate in the stator windings causing additional losses and constraints on the power ...
ROUHANA, Najib +5 more
core +1 more source
IEEE Open Journal of Power Electronics, 2022 This study analyzes a single-phase hybrid multilevel dc-link (MLDCL) inverter, in which a dc-link with two capacitors is integrated into a single dc source.
Almachius Kahwa +2 more
doaj +1 more source
Reliability Evaluation of DC-link Capacitors in Multi-drive Systems [PDF]
, 2019 This paper proposes a time-efficient equivalent model for the ripple current analysis of DC-link capacitors in multi-drive systems and investigates the impact of number of drives and grid voltage unbalance on the capacitor lifetime.
Huang, Shili +9 more
core +1 more source
Energies, 2022 This paper presents a novel concept of the DC-AC system with the input voltage boost ability, seven-level output voltage modulation, and the input AC current reduction at the double frequency of the output voltage.
Robert Stala +2 more
doaj +1 more source
Efficiency and Power Loss Distribution in a High-Frequency, Seven-Level Diode-Clamped Inverter
Energies, 2023 The paper presents efficiency and power loss analysis in a high-frequency, seven-level diode-clamped inverter (7LDCB). The inverter is composed of four-level (4L) diode-clamped branches based on MOSFET transistors and Si Schottky diodes.
Robert Stala +4 more
doaj +1 more source
Packed E-Cell (PEC) Converter Topology Operation and Experimental Validation
IEEE Access, 2019 This paper proposes a novel single-dc-source multilevel inverter called Packed E-Cell (PEC) topology to achieve nine levels with noticeably reduced components count, while dc capacitors are actively balanced.
Mohammad Sharifzadeh, Kamal Al-Haddad
doaj +1 more source
IEEE Access, 2021 Three-port intelligent conversion systems, interfacing photovoltaic (PV) arrays and electric vehicles (EVs), with an electrical grid, are a promising flexible infrastructure for future smart grids.
Zhigang Zhang, Bin Liu, Shaojian Song
doaj +1 more source
Lifetime estimation of DC-link capacitors in adjustable speed drives under grid voltage unbalances [PDF]
, 2018 Electrolytic capacitor with a DC-side inductor is a typical DC-link filtering configuration in grid-connected diode rectified Adjustable Speed Drives.
Wang, Haoran +6 more
core +1 more source
A high-reliability PV system by replacing electrolytic capacitors with film capacitors
Energy Reports, 2023 Electrolytic capacitors are considered a vulnerable link in PV systems. In order to enhance the system reliability and lifespan, this paper investigates a PV system without electrolytic capacitors. First, the system structure is introduced.
Wenping Zhang +4 more
doaj +1 more source
Estimation of Current RMS for DC Link Capacitor of S-PMSM Drive System
Kongzhi Yu Xinxi Jishu, 2023 The six-phase permanent magnet synchronous motor (PMSM) drive system has the characteristics of low voltage, high power, small torque ripple, flexible control, and high fault tolerance compared with traditional three-phase PMSM drive systems. The DC link
ZHANG Zhigang +2 more
doaj +3 more sources