Results 21 to 30 of about 33,571 (305)
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
P-resonant control for the neutral point of three phase inverter [PDF]
, 2014 In this project, a Proportional resonant (PR) current controller is proposed to maintain a balanced neutral point for a three-phase four wire inverter, which can be used in microgrid applications. The neutral-point circuit consists of a conventional
Omar Aashour, Omar Ali
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
Analysis of variation of neutral point potential in neutral-point-clamped voltage source PWM inverters [PDF]
, 2006 The authors present the analysis of the neutral-point potential variation of the neutral-point-clamped voltage source PWM (pulse-width-modulation) inverter (NPC-VSI) for AC motor drives and static VAr compensators (SVC).
Akagi, Hirofumi, Ogasawara, Satoshi
core +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
Active voltage balancing of DC-link electrolytic capacitors
IET Power Electronics, 2008 DC voltage links of three-phase power converters are frequently equipped with a series connection of two electrolytic capacitors because of high voltage level. For such a configuration, usually resistors have to be arranged in parallel to each capacitor in order to balance the partial voltages. These balancing resistors, however, have to be dimensioned
H. Ertl, T. Wiesinger, J.W. Kolar
openaire +1 more source
A New Evaluation Circuit for DC-link Capacitors Used in a Three-Phase Inverter [PDF]
, 2015 DC-link capacitors in power electronic converters are a major constraint on improvement of power density as well as reliability. Evaluation of the dc-link capacitors in terms of power loss, ageing, and failure rate will play an important role in design ...
大村 一郎 +2 more
core +4 more sources
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
Induction Motor Drives Equipped With Diode Rectifier and Small DC-Link Capacitance [PDF]
, 2008 This paper deals with sensorless vector-controlled induction motor drives that are fed by a frequency converter equipped with a diode front-end rectifier. A small DC-link capacitance is used, which makes it possible to replace the electrolytic capacitors
Hinkkanen, Marko, Luomi, Jorma
core +1 more source
Determination of Stray Inductance of Low-Inductive Laminated Planar Multiport Busbars Using Vector Synthesis Method [PDF]
, 2020 Laminated busbars connect capacitors with switching power modules, and they are designed to have low stray inductance to minimize electromagnetic interference. Attempts to accurately measure the stray inductance of these busbars have not been successful.
Hu, Junzhu +6 more
core +2 more sources