IET Power Electronics, 2022 This paper proposes a novel active power decoupling circuit (APDC) based on modified Buck converter to reduce the DC‐link voltage ripple of small capacitor motor drive systems. The APDC is placed between the Boost PFC circuit and the DC‐link, and has two
Chao Zhang +4 more
doaj +1 more source
Energies, 2022 The dc-link voltage ripple plays an important role in dc capacitor design for three-phase voltage source converters (VSCs). However, the analytical models of the dc-link voltage ripple have rarely been reported for VSCs with nonlinear output current ...
Shan Li, Lei Yang, Tao Wang
doaj +1 more source
Health Monitoring of DC link Capacitors
Chemical Engineering Transactions, 2013 Electrolytic and metallized polypropylene film (MPPF) capacitors are among the most popular capacitors used in electronic equipments. The choice of capacitors is of major importance because one of the most frequent causes of the equipment breakdowns results from the failure of capacitors, and will therefore determine the overall lifetime of the system.
Makdessi, Maawad +2 more
openaire +4 more sources
Transient analysis of a unified power flow controller and its application to design of the DC-link capacitor [PDF]
, 2001 This paper presents a transient analysis of a unified power flow controller (UPFC), and design of capacitance of the dc-link capacitor based on that analysis. Active power flowing out of the series device in transient states is theoretically discussed to
Akagi, Hirofumi +2 more
core +1 more source
Enhanced control strategy of full-bridge modular multilevel converter [PDF]
, 2015 This paper describes a control approach that allows the cell capacitor voltages of the full-bridge modular multilevel converter (FB-MMC) to be controlled independent of the input dc link voltage.
Adam, G. P. +2 more
core +1 more source
Full-bridge modular multilevel converter (FB-MMC) with extended control range [PDF]
, 2015 This paper presents an attractive control scheme that decouples cell capacitor voltage regulation of the FB-MMC from the dc link voltage regulation. This is achieved by manipulating both ac and dc components of modulation functions.
Adam, Grain Philip +4 more
core +1 more source
DC-link capacitor second carrier band switching harmonic current reduction in two-level back-to-back converters [PDF]
, 2017 This paper proposes an active switching harmonic current reduction method within the DC-link capacitor of two-level, three-phase, back-to-back converters.
Bozhko, Serhiy +3 more
core +1 more source
A practical approach to switching-loss reduction in a large-capacity static VAr compensator based on voltage-source inverters [PDF]
, 2000 This paper presents a simple method for reduction of switching and snubbing losses in a large-capacity static VAr compensator (SVC) consisting of multiple three-phase voltage-source square-wave inverters.
Akagi, Hirofumi +2 more
core +1 more source
Active DC-link capacitor harmonic current reduction in two-level back-to-back converter [PDF]
, 2015 The paper proposes a method of active switching harmonics current reduction in the DC-link capacitor of a two-level, three-phase, back-to-back converter. Based on the derived analytical solution for switching harmonic currents in the DC-link, it is shown
Asher, Greg +4 more
core +2 more sources
Direct usage of photovoltaic solar panels to supply a freezer motor with variable DC input voltage [PDF]
, 2020 In this paper, a single-phase photovoltaic (PV) inverter fed by a boost converter to supply a freezer motor with variable DC input is investigated. The proposed circuit has two stages.
Farzan Moghaddam, Ali +1 more
core +2 more sources