Results 1 to 10 of about 1,684 (260)
Review of the calculation of DC-link capacitor current
Frontiers in Energy Research, 2023 In the voltage source power electronic converter, DC-link capacitors usually work as buffering elements between the DC and AC sides. The high failure rate and large space occupied by the DC-link capacitors directly affect the reliability and power ...
Cheng Guo +4 more
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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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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 ...
M. Makdessi, A. Sari, P. Venet
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Effect of thermal stress on the life of DC link capacitors for smart grid. [PDF]
Sci RepAbstract Thermal stress is an important factor affecting the life of a DC link capacitor (DCLC). However, relevant studies on thermal stress mechanism directly influencing the lifetime of the capacitor are rarely reported. In this paper, the thermal polymerization of DCLC has been analyzed, and the relevant experimental platforms have been ...
Sun XW, Qiao Y, Li YD, Cao CF, Guo XM.
europepmc +4 more sources
Reliability of Capacitors for DC-Link Applications in Power Electronic Converters—An Overview [PDF]
IEEE Transactions on Industry Applications, 2014 DC-link capacitors are an important part in the majority of power electronic converters which contribute to cost, size and failure rate on a considerable scale. From capacitor users' viewpoint, this paper presents a review on the improvement of reliability of dc link in power electronic converters from two aspects: 1) reliability-oriented dc-link ...
Huai Wang, Frede Blaabjerg
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IEEE Access, 2021 Nowadays, photovoltaic (PV) systems based on centralized topology with a three-level T-type (3LT2) inverter are used to decrease investment costs and increase conversion efficiency.
Mohammadreza Lak +2 more
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Energy Reports, 2023 The dual three phase machine drive system with the common dc-link capacitors has been widely used in many industrial applications due to the advantages such as small stallion volume, reduced cost and flexibility.
Wan Feng +4 more
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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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IEEE Open Journal of the Industrial Electronics Society, 2022 This article proposes a multilevel inverter topology with single dc-link and series-connected capacitors as stacked voltage sources for multilevel voltage generation.
Tutan Debnath +4 more
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IEEE Access, 2021 Single-stage utility-scale photovoltaic (PV) systems are usually interfaced with the host grid via a centralized voltage-source converter (VSC). Recently, and due to their reliability, the dc-link film capacitors are favored over electrolytic types in ...
Mohammad Adnan K. Magableh +2 more
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