Results 11 to 20 of about 2,692 (263)

R Dump Converter without DC Link Capacitor for an 8/6 SRM: Experimental Investigation [PDF]

open access: yesThe Scientific World Journal, 2015
The objective of this paper is to investigate the performance of 8/6 switched reluctance motor (SRM) when excited with sinusoidal voltage. The conventional R dump converter provides DC excitation with the help of capacitor.
Pasumalaithevan Kavitha   +1 more
doaj   +2 more sources

Health Monitoring of DC link Capacitors

open access: yesChemical 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

Analysis of the DC-Link Voltage Ripple for the Three-Phase Voltage Source Converter under Nonlinear Output Current

open access: yesEnergies, 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

Reliability study on DC-link capacitor in fault states of VSI in elective vehicle

open access: yesThe Journal of Engineering, 2019
DC-input side of the inverter to balance input and output power, eliminate voltage fluctuation, and reduce the voltage spike in the input side. The reliability study on DC-link capacitor under fault state is critical to the safe operation of the whole ...
Fang Yao   +3 more
doaj   +1 more source

Calculation of RMS Current Load on DC-Link Capacitors for Multiphase Machine Drives under Carrier-Phase Shift Control

open access: yesJournal of Control Science and Engineering, 2023
The reliability and economy of dc-link capacitors are important concerns in multiphase drive systems. Due to the parallel connection of several converters, the dc-link capacitors are subjected to a higher RMS current, and the root mean square (RMS ...
Zhigang Zhang   +5 more
doaj   +1 more source

An improved fuzzy logic based DC-link voltage control strategy for smoothing output power of the PMSG-WECS

open access: yesEnergy Reports, 2022
Direct power smoothing control methods relying on the wind turbine itself have been widely studied to improve wind turbines’ output power quality, and the DC-link voltage control based on the capacitor of the wind power converter is one of them.
Ying Zhu, Zhengzhou Ma, Zhicong Wang
doaj   +1 more source

Advanced Vector Controller for a Four-Switch Three-Phase Rectifier under Unbalanced Grid Voltage

open access: yesInternational Transactions on Electrical Energy Systems, 2022
One of the main challenges of a four-switch three-phase rectifier (FSTPR) is a DC imbalance in capacitor voltages. On the other hand, under unbalanced grid voltage conditions, unbalanced three-phase input current and the DC-link voltage affect the ...
M. Alizadeh Bidgoli, S. Honarbari
doaj   +1 more source

Decoupled DC-Link Capacitor Voltage Control of DC–AC Multilevel Multileg Converters [PDF]

open access: yesIEEE Transactions on Industrial Electronics, 2016
This paper studies the coupling between the capacitor voltage control loops of diode-clamped (or functionally equivalent) multilevel multileg (multiphase) dc-ac converters. From a complete model of the plant revealing the coupling, a simple approach consisting in multiplying the vector of control commands by a constant matrix is proposed to decouple ...
Busquets Monge, Sergio   +3 more
openaire   +3 more sources

Online Monitoring Method for Capacitor Lifetime in Brushless DC Motor Drive Systems with DC-Link Series Switch

open access: yesWorld Electric Vehicle Journal
Brushless DC motors are often used as traction motors in electric vehicles due to their high power density and efficiency. The dc-link electrolytic capacitor is the most vulnerable part of the brushless DC motor drive system, and it determines the ...
Zhongquan Qian   +4 more
doaj   +1 more source

Reduction in DC-Link Capacitor Current by Phase Shifting Method for a Dual Three-Phase Voltage Source Inverters Dual Permanent Magnet Synchronous Motors System

open access: yesWorld Electric Vehicle Journal
This paper presents a carrier waves phase shifting method to reduce the dc-link capacitor current for a dual three-phase permanent magnet synchronous motor drive system.
Deniz Şahin, Bülent Dağ
doaj   +1 more source

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