Results 1 to 10 of about 13,310 (293)
Safe Operating Area of DC-Link Film Capacitors
IEEE Transactions on Power Electronics, 2021 This letter proposes a Safe Operating Area (SOA) concept for film capacitors in DC-link applications. The SOA is presented by capacitor voltage and ripple current, considering the impact of ambient temperature, degradation, and parameter variance. The theoretical derivations and proof-of-concept experimental verifications are given.
Shuai Liu, Zhan Shen, Huai Wang
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Unit Partition Resonance Analysis Strategy for Impedance Network in Modular Power Converters
Frontiers in Energy Research, 2022 In modular power converters, the dc-link capacitor has the highest failure rate due to thermal stress, reducing system performance and reliability. Current harmonics are one of the prominent causes of thermal stress on the dc-link capacitor that may get ...
Mustafa Tahir +3 more
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An Identification Method for DC-Link Capacitor Capacitance of Grid Connected Inverter
Shanghai Jiaotong Daxue xuebao, 2022 DC-link for the capacitor is one of the most vulnerable components of the grid connected converter, whose capacitance identification will help to improve the system reliability by finding and replacing the aging capacitor in time.
ZHU Chenghao, WANG Han, SUN Guoqi, WEI Xiaobin, WANG Fuwen, CAI Xu
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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
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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
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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
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Voltage across DC link capacitor.
, 2022 Voltage across DC link capacitor.
Selvakumar R. B. (12009610) +1 more
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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
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Energy 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
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Journal 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
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