Results 231 to 240 of about 46,746 (277)
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Condition Monitoring of DC-Link Capacitors in Aerospace Drives
IEEE Transactions on Industry Applications, 2012This paper proposes a novel online condition monitoring system of dc-link metallized polypropylene capacitors in fault-tolerant drives for aerospace applications. The estimation technique makes use of voltage and current sensors which are already in place for protection and control purposes.
Wechsler A +4 more
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IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society, 2021
In order to avoid the failure of electrolytic capacitor due to the influence of ambient temperature, film capacitors are applied in the DC-link of permanent magnet synchronous motor (PMSM) drive systems. In this paper, an online estimation method of DC-link capacitance is proposed for the electrolytic capacitorless motor drive system. The power signals
Bingqi Zhou +5 more
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In order to avoid the failure of electrolytic capacitor due to the influence of ambient temperature, film capacitors are applied in the DC-link of permanent magnet synchronous motor (PMSM) drive systems. In this paper, an online estimation method of DC-link capacitance is proposed for the electrolytic capacitorless motor drive system. The power signals
Bingqi Zhou +5 more
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DC-link capacitor condition monitoring
Poster presentation at VII Sci&Tec Conf Energy-Efficient Converter Drives in Industry 2025, Poland, June 2-4 ...Oliszewski, Stanisław +2 more
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Method for balancing capacitors voltages on split DC-links
2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe), 2016A technique to actively balance the voltages on series-connected capacitors designated to split DC sources whose loads comprise power converters is presented. It performs such balancing dynamically, enabling the voltage equalization even for small capacitors under wide power and voltages ranges. Proposal consists on lightly controlling the power of one
Douglas Pappis +2 more
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Resonance Suppression Between Line Inductor and DC-Link Capacitor
2020The harmonic of the grid current is an important issue in the reduced DC-link capacitance motor drive system. An input inductor has been applied in the grid side to improve the grid current quality.
Gaolin Wang +3 more
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Investigation of performance of UPFC without DC link capacitor
Electric Power Systems Research, 2008This paper presents an analysis of the dynamic operation of unified power flow controller without DC link capacitor. In this scheme of UPFC the shunt converter present in the static synchronous compensator is operated as a current source rectifier, which maintains a fixed DC voltage and DC current on the DC link without capacitor.
B. Geethalakshmi, P. Dananjayan
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Verification of frequency converter with small DC-link capacitor
2005 European Conference on Power Electronics and Applications, 2005Traditionally, large DC-link capacitors have been used in voltage source inverters. By using MPPF-type capacitor the line current harmonic content is improved and the unreliable electrolytic capacitor can be omitted. In this paper, the dynamic behavior of an inverter with small DC-link capacitor has been studied by simulations and laboratory tests.
H. Saren +4 more
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Line harmonics on systems using reduced DC-link capacitors
IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 2013As in all industrial sectors, drives for AC motors are constantly pushed for improvement. Drives using a reduced capacitance for DC-link filtering have gather attention in recent years as a way not only to increase the drives life-time but also to improve the line harmonics while, due to the increased computing capabilities, maintaining a reasonably ...
Delpino, Hernan Miranda, Kumar, Dinesh
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Single phase VSI with reduced-size DC-link capacitor
4th International Conference on Power Engineering, Energy and Electrical Drives, 2013This paper presents a voltage source inverter in a single phase system for photovoltaic applications. The singlephase H-Bridge is augmented by an additional leg from which greater degree of freedom has been achieved in terms of modulation strategy. This new topology demonstrates the feasibility to avoid the double line frequency ripple, which commonly ...
Bingsen Wang, United States, Yantao Song
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DC link capacitor optimization for integrated modular motor drives
2017 IEEE 26th International Symposium on Industrial Electronics (ISIE), 2017In this paper, selection of optimum DC link capacitor for Integrated Modular Motor Drives (IMMD) is presented. First, a review of IMMD technologies is given and current research and future prospects are studied. Inverter topologies and gate drive techniques are evaluated in terms of DC link performance.
Mesut Ugur, Ozan Keysan
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