POWER CONVERSION DEVICE AND POWER CONVERSION METHOD

POWER CONVERSION DEVICE AND POWER CONVERSION METHOD

To provide a power conversion device including a plurality of switching elements connected in parallel for suppressing temperature imbalance due to variations in delay time and temperature imbalance due to variations in ON voltage, and a power conversion method.SOLUTION: An inverter system includes:...

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Hauptverfasser: ANDO MASATO, HIRUTA KIYOHARU, SEKI MAKI, TAKAYAMA NAOKI, ENDO SHUN, SHIMADA TAKAE
Format: Patent
Sprache:eng ; jpn
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APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
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creator ANDO MASATO
HIRUTA KIYOHARU
SEKI MAKI
TAKAYAMA NAOKI
ENDO SHUN
SHIMADA TAKAE
description To provide a power conversion device including a plurality of switching elements connected in parallel for suppressing temperature imbalance due to variations in delay time and temperature imbalance due to variations in ON voltage, and a power conversion method.SOLUTION: An inverter system includes: a temperature sensor for detecting temperature of a plurality of switching elements 110 to 117; a carrier frequency adjustment unit 127 for adjusting carrier frequency of the plurality of switching elements; delay time adjustment units 106 to 109 for adjusting turn-on time or turn-off time of the plurality of switching elements; and gate voltage adjustment units 131 to 134 for adjusting ON voltage of the plurality of switching elements. The temperature sensor detects a change amount of temperature difference in the plurality of switching elements before and after carrier frequency adjustment by the carrier frequency adjustment unit. The delay time adjustment unit adjusts the turn-on time or the turn-off time of the plurality of switching elements based on the detected change amount of temperature difference.SELECTED DRAWING: Figure 2 【課題】遅延時間ばらつきによる温度アンバランス及びオン電圧ばらつきによる温度アンバランスを抑制する、並列接続された複数のスイッチング素子を備える電力変換装置及び電力変換方法を提供する。【解決手段】インバータシステムにおいて、複数のスイッチング素子１１０～１１７の温度を検出する温度センサと、複数のスイッチング素子のキャリア周波数を調整するキャリア周波数調整部１２７と、複数のスイッチング素子のターンオン時間又はターンオフ時間を調整する遅延時間調整部１０６～１０９と、複数のスイッチング素子のオン電圧を調整するゲート電圧調整部１３１～１３４と、を備える。温度センサは、キャリア周波数調整部によるキャリア周波数調整前後での複数のスイッチング素子の温度差の変化量を検出する。遅延時間調整部は、検出した温度差の変化量に基づいて、複数のスイッチング素子のターンオン時間またはターンオフ時間を調整する。【選択図】図２
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The temperature sensor detects a change amount of temperature difference in the plurality of switching elements before and after carrier frequency adjustment by the carrier frequency adjustment unit. The delay time adjustment unit adjusts the turn-on time or the turn-off time of the plurality of switching elements based on the detected change amount of temperature difference.SELECTED DRAWING: Figure 2 【課題】遅延時間ばらつきによる温度アンバランス及びオン電圧ばらつきによる温度アンバランスを抑制する、並列接続された複数のスイッチング素子を備える電力変換装置及び電力変換方法を提供する。【解決手段】インバータシステムにおいて、複数のスイッチング素子１１０～１１７の温度を検出する温度センサと、複数のスイッチング素子のキャリア周波数を調整するキャリア周波数調整部１２７と、複数のスイッチング素子のターンオン時間又はターンオフ時間を調整する遅延時間調整部１０６～１０９と、複数のスイッチング素子のオン電圧を調整するゲート電圧調整部１３１～１３４と、を備える。温度センサは、キャリア周波数調整部によるキャリア周波数調整前後での複数のスイッチング素子の温度差の変化量を検出する。遅延時間調整部は、検出した温度差の変化量に基づいて、複数のスイッチング素子のターンオン時間またはターンオフ時間を調整する。【選択図】図２</description><language>eng ; jpn</language><subject>APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS ; CONTROL OR REGULATION THEREOF ; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; GENERATION</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20230411&amp;DB=EPODOC&amp;CC=JP&amp;NR=2023050677A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20230411&amp;DB=EPODOC&amp;CC=JP&amp;NR=2023050677A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ANDO MASATO</creatorcontrib><creatorcontrib>HIRUTA KIYOHARU</creatorcontrib><creatorcontrib>SEKI MAKI</creatorcontrib><creatorcontrib>TAKAYAMA NAOKI</creatorcontrib><creatorcontrib>ENDO SHUN</creatorcontrib><creatorcontrib>SHIMADA TAKAE</creatorcontrib><title>POWER CONVERSION DEVICE AND POWER CONVERSION METHOD</title><description>To provide a power conversion device including a plurality of switching elements connected in parallel for suppressing temperature imbalance due to variations in delay time and temperature imbalance due to variations in ON voltage, and a power conversion method.SOLUTION: An inverter system includes: a temperature sensor for detecting temperature of a plurality of switching elements 110 to 117; a carrier frequency adjustment unit 127 for adjusting carrier frequency of the plurality of switching elements; delay time adjustment units 106 to 109 for adjusting turn-on time or turn-off time of the plurality of switching elements; and gate voltage adjustment units 131 to 134 for adjusting ON voltage of the plurality of switching elements. The temperature sensor detects a change amount of temperature difference in the plurality of switching elements before and after carrier frequency adjustment by the carrier frequency adjustment unit. The delay time adjustment unit adjusts the turn-on time or the turn-off time of the plurality of switching elements based on the detected change amount of temperature difference.SELECTED DRAWING: Figure 2 【課題】遅延時間ばらつきによる温度アンバランス及びオン電圧ばらつきによる温度アンバランスを抑制する、並列接続された複数のスイッチング素子を備える電力変換装置及び電力変換方法を提供する。【解決手段】インバータシステムにおいて、複数のスイッチング素子１１０～１１７の温度を検出する温度センサと、複数のスイッチング素子のキャリア周波数を調整するキャリア周波数調整部１２７と、複数のスイッチング素子のターンオン時間又はターンオフ時間を調整する遅延時間調整部１０６～１０９と、複数のスイッチング素子のオン電圧を調整するゲート電圧調整部１３１～１３４と、を備える。温度センサは、キャリア周波数調整部によるキャリア周波数調整前後での複数のスイッチング素子の温度差の変化量を検出する。遅延時間調整部は、検出した温度差の変化量に基づいて、複数のスイッチング素子のターンオン時間またはターンオフ時間を調整する。【選択図】図２</description><subject>APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS</subject><subject>CONTROL OR REGULATION THEREOF</subject><subject>CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRICITY</subject><subject>GENERATION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDAO8A93DVJw9vcLcw0K9vT3U3BxDfN0dlVw9HNRwJDzdQ3x8HfhYWBNS8wpTuWF0twMSm6uIc4euqkF-fGpxQWJyal5qSXxXgFGBkbGBqYGZubmjsZEKQIAAhAnuA</recordid><startdate>20230411</startdate><enddate>20230411</enddate><creator>ANDO MASATO</creator><creator>HIRUTA KIYOHARU</creator><creator>SEKI MAKI</creator><creator>TAKAYAMA NAOKI</creator><creator>ENDO SHUN</creator><creator>SHIMADA TAKAE</creator><scope>EVB</scope></search><sort><creationdate>20230411</creationdate><title>POWER CONVERSION DEVICE AND POWER CONVERSION METHOD</title><author>ANDO MASATO ; HIRUTA KIYOHARU ; SEKI MAKI ; TAKAYAMA NAOKI ; ENDO SHUN ; SHIMADA TAKAE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2023050677A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2023</creationdate><topic>APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS</topic><topic>CONTROL OR REGULATION THEREOF</topic><topic>CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>ELECTRICITY</topic><topic>GENERATION</topic><toplevel>online_resources</toplevel><creatorcontrib>ANDO MASATO</creatorcontrib><creatorcontrib>HIRUTA KIYOHARU</creatorcontrib><creatorcontrib>SEKI MAKI</creatorcontrib><creatorcontrib>TAKAYAMA NAOKI</creatorcontrib><creatorcontrib>ENDO SHUN</creatorcontrib><creatorcontrib>SHIMADA TAKAE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ANDO MASATO</au><au>HIRUTA KIYOHARU</au><au>SEKI MAKI</au><au>TAKAYAMA NAOKI</au><au>ENDO SHUN</au><au>SHIMADA TAKAE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>POWER CONVERSION DEVICE AND POWER CONVERSION METHOD</title><date>2023-04-11</date><risdate>2023</risdate><abstract>To provide a power conversion device including a plurality of switching elements connected in parallel for suppressing temperature imbalance due to variations in delay time and temperature imbalance due to variations in ON voltage, and a power conversion method.SOLUTION: An inverter system includes: a temperature sensor for detecting temperature of a plurality of switching elements 110 to 117; a carrier frequency adjustment unit 127 for adjusting carrier frequency of the plurality of switching elements; delay time adjustment units 106 to 109 for adjusting turn-on time or turn-off time of the plurality of switching elements; and gate voltage adjustment units 131 to 134 for adjusting ON voltage of the plurality of switching elements. The temperature sensor detects a change amount of temperature difference in the plurality of switching elements before and after carrier frequency adjustment by the carrier frequency adjustment unit. The delay time adjustment unit adjusts the turn-on time or the turn-off time of the plurality of switching elements based on the detected change amount of temperature difference.SELECTED DRAWING: Figure 2 【課題】遅延時間ばらつきによる温度アンバランス及びオン電圧ばらつきによる温度アンバランスを抑制する、並列接続された複数のスイッチング素子を備える電力変換装置及び電力変換方法を提供する。【解決手段】インバータシステムにおいて、複数のスイッチング素子１１０～１１７の温度を検出する温度センサと、複数のスイッチング素子のキャリア周波数を調整するキャリア周波数調整部１２７と、複数のスイッチング素子のターンオン時間又はターンオフ時間を調整する遅延時間調整部１０６～１０９と、複数のスイッチング素子のオン電圧を調整するゲート電圧調整部１３１～１３４と、を備える。温度センサは、キャリア周波数調整部によるキャリア周波数調整前後での複数のスイッチング素子の温度差の変化量を検出する。遅延時間調整部は、検出した温度差の変化量に基づいて、複数のスイッチング素子のターンオン時間またはターンオフ時間を調整する。【選択図】図２</abstract><oa>free_for_read</oa></addata></record>
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subjects APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
title POWER CONVERSION DEVICE AND POWER CONVERSION METHOD
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