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Repetitive pulse application of self-healing high voltage capacitors

In the last fifteen years, self-healing high voltage capacitors have become standard technology for single-shot and low repetition rate (

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Main Authors:	Ennis, J.B., MacDougall, F.W., Cooper, R.A., Bates, J.
Format:	Conference Proceeding
Language:	English
Subjects:	Applied sciences Capacitors Electrical engineering. Electrical power engineering Electrodes Electromagnetic fields Electromagnetic launching Exact sciences and technology Inertial confinement Magnetic confinement Metallization Power electronics, power supplies Research and development Thermal conductivity Voltage
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creator	Ennis, J.B. MacDougall, F.W. Cooper, R.A. Bates, J.
description	In the last fifteen years, self-healing high voltage capacitors have become standard technology for single-shot and low repetition rate (
doi_str_mv	10.1109/MODSYM.2002.1189558
format	conference_proceeding
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Standard self-healing capacitors, built with vapor-deposited metallized electrodes, have limited ability to carry both peak pulse and continuous RMS (root mean square) currents, generate more heat than discrete foil capacitors, and have lower thermal conductivity for heat dissipation. For these reasons, many pulse power applications have been unable to utilize self-healing technology. For example, moderate to high repetition rate (/spl ges/10 Hz), high voltage capacitors built today are generally not of the self-healing type due to the higher energy losses and poorer thermal conductivity of metallized electrode capacitors. This results in large thermal gradients and overheating. Instead, such capacitors are still manufactured using discrete foil electrodes, which provide excellent electrical and thermal conductivity. The economic and technical benefits of self-healing capacitors continue to drive research and development to expand their operational envelope. Areas of research include "hybrid" electrode systems, integrated cooling, segmented electrodes, and higher temperature dielectrics. This paper will explore the application of self-healing capacitor technologies to repetitive pulse power systems. Present status of the technology will be described and future performance improvements will be projected.</description><identifier>ISSN: 1076-8467</identifier><identifier>ISBN: 9780780375406</identifier><identifier>ISBN: 0780375408</identifier><identifier>DOI: 10.1109/MODSYM.2002.1189558</identifier><language>eng</language><publisher>Piscataway NJ: IEEE</publisher><subject>Applied sciences ; Capacitors ; Electrical engineering. 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Standard self-healing capacitors, built with vapor-deposited metallized electrodes, have limited ability to carry both peak pulse and continuous RMS (root mean square) currents, generate more heat than discrete foil capacitors, and have lower thermal conductivity for heat dissipation. For these reasons, many pulse power applications have been unable to utilize self-healing technology. For example, moderate to high repetition rate (/spl ges/10 Hz), high voltage capacitors built today are generally not of the self-healing type due to the higher energy losses and poorer thermal conductivity of metallized electrode capacitors. This results in large thermal gradients and overheating. Instead, such capacitors are still manufactured using discrete foil electrodes, which provide excellent electrical and thermal conductivity. The economic and technical benefits of self-healing capacitors continue to drive research and development to expand their operational envelope. Areas of research include "hybrid" electrode systems, integrated cooling, segmented electrodes, and higher temperature dielectrics. This paper will explore the application of self-healing capacitor technologies to repetitive pulse power systems. Present status of the technology will be described and future performance improvements will be projected.</description><subject>Applied sciences</subject><subject>Capacitors</subject><subject>Electrical engineering. Electrical power engineering</subject><subject>Electrodes</subject><subject>Electromagnetic fields</subject><subject>Electromagnetic launching</subject><subject>Exact sciences and technology</subject><subject>Inertial confinement</subject><subject>Magnetic confinement</subject><subject>Metallization</subject><subject>Power electronics, power supplies</subject><subject>Research and development</subject><subject>Thermal conductivity</subject><subject>Voltage</subject><issn>1076-8467</issn><isbn>9780780375406</isbn><isbn>0780375408</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2002</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><recordid>eNpFUMtqwzAQFLSFhtRfkIsuPTrVW_KxJH1BQqCPQ09hLa8SFTcWlhvo39clhS4LA7Mzw7CEzDibc86qm_Vm-fK-ngvGxEi4Smt3RorKOjautFoxc04mnFlTOmXsJSly_mDjaGaZFhOyfMaEQxziEWn6ajNSSKmNHobYHWgXaMY2lHuENh52dB93e3rs2gF2SD0k8HHo-nxFLgKM3uIPp-Tt_u518ViuNg9Pi9tVGcduQ9nU3jdBWdCCNei4ERhqZRi3MghfIXghpbJCSSWFAOWtklbUFkFhcMHJKbk-5SbIHtrQw8HHvE19_IT-e8u1MZXVv7rZSRcR8f98-o_8ATmRWbU</recordid><startdate>2002</startdate><enddate>2002</enddate><creator>Ennis, J.B.</creator><creator>MacDougall, F.W.</creator><creator>Cooper, R.A.</creator><creator>Bates, J.</creator><general>IEEE</general><scope>6IE</scope><scope>6IH</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIO</scope><scope>IQODW</scope></search><sort><creationdate>2002</creationdate><title>Repetitive pulse application of self-healing high voltage capacitors</title><author>Ennis, J.B. ; MacDougall, F.W. ; Cooper, R.A. ; Bates, J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i118t-dbccdf47a520de8162efb460173f2c9eac233472434322a4c74372b7ea4ef8f83</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Applied sciences</topic><topic>Capacitors</topic><topic>Electrical engineering. Electrical power engineering</topic><topic>Electrodes</topic><topic>Electromagnetic fields</topic><topic>Electromagnetic launching</topic><topic>Exact sciences and technology</topic><topic>Inertial confinement</topic><topic>Magnetic confinement</topic><topic>Metallization</topic><topic>Power electronics, power supplies</topic><topic>Research and development</topic><topic>Thermal conductivity</topic><topic>Voltage</topic><toplevel>online_resources</toplevel><creatorcontrib>Ennis, J.B.</creatorcontrib><creatorcontrib>MacDougall, F.W.</creatorcontrib><creatorcontrib>Cooper, R.A.</creatorcontrib><creatorcontrib>Bates, J.</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan (POP) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE/IET Electronic Library</collection><collection>IEEE Proceedings Order Plans (POP) 1998-present</collection><collection>Pascal-Francis</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Ennis, J.B.</au><au>MacDougall, F.W.</au><au>Cooper, R.A.</au><au>Bates, J.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Repetitive pulse application of self-healing high voltage capacitors</atitle><btitle>Conference Record of the Twenty-Fifth International Power Modulator Symposium, 2002 and 2002 High-Voltage Workshop</btitle><stitle>MODSYM</stitle><date>2002</date><risdate>2002</risdate><spage>634</spage><epage>638</epage><pages>634-638</pages><issn>1076-8467</issn><isbn>9780780375406</isbn><isbn>0780375408</isbn><abstract>In the last fifteen years, self-healing high voltage capacitors have become standard technology for single-shot and low repetition rate (<1 shot/minute) applications in R&D environments, such as inertial confinement fusion, electromagnetic launchers, electrochemical guns, high field magnet facilities, etc. Such capacitors offer higher energy density and/or longer life and higher reliability in many applications. Standard self-healing capacitors, built with vapor-deposited metallized electrodes, have limited ability to carry both peak pulse and continuous RMS (root mean square) currents, generate more heat than discrete foil capacitors, and have lower thermal conductivity for heat dissipation. For these reasons, many pulse power applications have been unable to utilize self-healing technology. For example, moderate to high repetition rate (/spl ges/10 Hz), high voltage capacitors built today are generally not of the self-healing type due to the higher energy losses and poorer thermal conductivity of metallized electrode capacitors. This results in large thermal gradients and overheating. Instead, such capacitors are still manufactured using discrete foil electrodes, which provide excellent electrical and thermal conductivity. The economic and technical benefits of self-healing capacitors continue to drive research and development to expand their operational envelope. Areas of research include "hybrid" electrode systems, integrated cooling, segmented electrodes, and higher temperature dielectrics. This paper will explore the application of self-healing capacitor technologies to repetitive pulse power systems. Present status of the technology will be described and future performance improvements will be projected.</abstract><cop>Piscataway NJ</cop><pub>IEEE</pub><doi>10.1109/MODSYM.2002.1189558</doi><tpages>5</tpages></addata></record>
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source	IEEE Electronic Library (IEL) Conference Proceedings
subjects	Applied sciences Capacitors Electrical engineering. Electrical power engineering Electrodes Electromagnetic fields Electromagnetic launching Exact sciences and technology Inertial confinement Magnetic confinement Metallization Power electronics, power supplies Research and development Thermal conductivity Voltage
title	Repetitive pulse application of self-healing high voltage capacitors
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