NDLI: Application of a quasi-static EM solver to optimization of low inductance film capacitors

Content Provider	IEEE Xplore Digital Library
Author	Shanshan Qin Boggs, S.A.
Copyright Year	2009
Description	Author affiliation: Institute of Materials Science, University of Connecticut, 97 North Eagleville Road, Storrs, USA (Shanshan Qin; Boggs, S.A.)
Abstract	A large high voltage film capacitor typically consists of numerous “windings” connected in series and parallel, as necessary to achieve the desired voltage and capacitance rating. The discharge properties of such a capacitor are determined by the equivalent series resistance (ESR) and equivalent series inductance (ESL) of the overall assembly, as determined by the properties of the individual windings combined with the structure into which they are assembled, as well as the frequency dependent impedance of the load. A quasi-static electromagnetic solver has been used to compute the frequency-dependent ESR and ESL of capacitor structures which minimize capacitor inductance. The properties are frequency-dependent as a result of the variation in the relative values of resistive and inductive impedances with frequency, which changes the current distribution in the structure and, therefore, the magnetic field (and resulting inductance) as well as power dissipation (resistance) generated by current flow. The ultimate objective is to optimize film capacitors for ns discharge applications and compute the discharge characteristics into a given load.
Starting Page	790
Ending Page	794
File Size	1073624
Page Count	5
File Format	PDF
ISBN	9781424440641
DOI	10.1109/PPC.2009.5386362
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-28
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Inductance Capacitors Voltage Paramagnetic resonance Assembly Impedance Capacitance Frequency dependence Electromagnetic induction Magnetic properties
Content Type	Text
Resource Type	Article

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