POWER CONVERSION DEVICE
To provide a power conversion device capable of suppressing a current flowing in a filter even in a case where a converter circuit side phase and an inverter circuit side phase are deviated from each other at two-phase modulation, and of improving the power conversion efficiency without increasing a...
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| creator | KOHATA MASARU YANAGISAWA MINORU |
| description | To provide a power conversion device capable of suppressing a current flowing in a filter even in a case where a converter circuit side phase and an inverter circuit side phase are deviated from each other at two-phase modulation, and of improving the power conversion efficiency without increasing a size of the device.SOLUTION: A power conversion device 1 comprises: a converter circuit C connected with a three-phase AC power supply 91 to convert an AC of the three-phase AC power supply 91 into a DC; a smoothing circuit S connected with DC output terminals 42a and 42b of the converter circuit C, consisting of a capacitor; an inverter circuit I connected with DC terminals 61a and 62b of the smoothing circuit S to convert a DC of the smoothing circuit S into an AC and output the AC to an AC load 92; a converter controller 12 that performs PWM control of the converter circuit C by the two-phase modulation system; and an inverter controller 13 that performs PWM control of the inverter circuit I by the two-phase modulation system. The converter controller 12 performs PWM control of the converter circuit C by the two-phase modulation system by using a two-phase modulation signal for two-phase modulation used by the inverter controller 13.SELECTED DRAWING: Figure 1A
【課題】二相変調時にコンバータ回路側とインバータ回路側の位相がずれた場合でも、フィルタに流れる電流を抑制でき、装置を大型化せずに電力変換の効率を向上可能な電力変換装置を提供する。【解決手段】電力変換装置１は、三相交流電源９１に接続され、三相交流電源９１の交流を直流に変換するコンバータ回路Ｃと、コンバータ回路Ｃの直流出力端子４２ａ、４２ｂに接続され、コンデンサからなる平滑回路Ｓと、平滑回路Ｓの直流端子６１ａ、６２ｂに接続され、平滑回路Ｓの直流を交流に変換して交流負荷９２に出力するインバータ回路Ｉと、コンバータ回路Ｃを二相変調方式によりＰＷＭ制御するコンバータ制御部１２と、インバータ回路Ｉを二相変調方式によりＰＷＭ制御するインバータ制御部１３と、を備える。コンバータ制御部１２は、インバータ制御部１３で用いる二相変調用の二相変調用信号を用いてコンバータ回路Ｃの二相変調方式によるＰＷＭ制御を行う。【選択図】図１Ａ |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JP2023016478A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JP2023016478A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JP2023016478A3</originalsourceid><addsrcrecordid>eNrjZBAP8A93DVJw9vcLcw0K9vT3U3BxDfN0duVhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGRsYGhmYm5haOxkQpAgAcVh_3</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>POWER CONVERSION DEVICE</title><source>esp@cenet</source><creator>KOHATA MASARU ; YANAGISAWA MINORU</creator><creatorcontrib>KOHATA MASARU ; YANAGISAWA MINORU</creatorcontrib><description>To provide a power conversion device capable of suppressing a current flowing in a filter even in a case where a converter circuit side phase and an inverter circuit side phase are deviated from each other at two-phase modulation, and of improving the power conversion efficiency without increasing a size of the device.SOLUTION: A power conversion device 1 comprises: a converter circuit C connected with a three-phase AC power supply 91 to convert an AC of the three-phase AC power supply 91 into a DC; a smoothing circuit S connected with DC output terminals 42a and 42b of the converter circuit C, consisting of a capacitor; an inverter circuit I connected with DC terminals 61a and 62b of the smoothing circuit S to convert a DC of the smoothing circuit S into an AC and output the AC to an AC load 92; a converter controller 12 that performs PWM control of the converter circuit C by the two-phase modulation system; and an inverter controller 13 that performs PWM control of the inverter circuit I by the two-phase modulation system. The converter controller 12 performs PWM control of the converter circuit C by the two-phase modulation system by using a two-phase modulation signal for two-phase modulation used by the inverter controller 13.SELECTED DRAWING: Figure 1A
【課題】二相変調時にコンバータ回路側とインバータ回路側の位相がずれた場合でも、フィルタに流れる電流を抑制でき、装置を大型化せずに電力変換の効率を向上可能な電力変換装置を提供する。【解決手段】電力変換装置１は、三相交流電源９１に接続され、三相交流電源９１の交流を直流に変換するコンバータ回路Ｃと、コンバータ回路Ｃの直流出力端子４２ａ、４２ｂに接続され、コンデンサからなる平滑回路Ｓと、平滑回路Ｓの直流端子６１ａ、６２ｂに接続され、平滑回路Ｓの直流を交流に変換して交流負荷９２に出力するインバータ回路Ｉと、コンバータ回路Ｃを二相変調方式によりＰＷＭ制御するコンバータ制御部１２と、インバータ回路Ｉを二相変調方式によりＰＷＭ制御するインバータ制御部１３と、を備える。コンバータ制御部１２は、インバータ制御部１３で用いる二相変調用の二相変調用信号を用いてコンバータ回路Ｃの二相変調方式によるＰＷＭ制御を行う。【選択図】図１Ａ</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&date=20230202&DB=EPODOC&CC=JP&NR=2023016478A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230202&DB=EPODOC&CC=JP&NR=2023016478A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KOHATA MASARU</creatorcontrib><creatorcontrib>YANAGISAWA MINORU</creatorcontrib><title>POWER CONVERSION DEVICE</title><description>To provide a power conversion device capable of suppressing a current flowing in a filter even in a case where a converter circuit side phase and an inverter circuit side phase are deviated from each other at two-phase modulation, and of improving the power conversion efficiency without increasing a size of the device.SOLUTION: A power conversion device 1 comprises: a converter circuit C connected with a three-phase AC power supply 91 to convert an AC of the three-phase AC power supply 91 into a DC; a smoothing circuit S connected with DC output terminals 42a and 42b of the converter circuit C, consisting of a capacitor; an inverter circuit I connected with DC terminals 61a and 62b of the smoothing circuit S to convert a DC of the smoothing circuit S into an AC and output the AC to an AC load 92; a converter controller 12 that performs PWM control of the converter circuit C by the two-phase modulation system; and an inverter controller 13 that performs PWM control of the inverter circuit I by the two-phase modulation system. The converter controller 12 performs PWM control of the converter circuit C by the two-phase modulation system by using a two-phase modulation signal for two-phase modulation used by the inverter controller 13.SELECTED DRAWING: Figure 1A
【課題】二相変調時にコンバータ回路側とインバータ回路側の位相がずれた場合でも、フィルタに流れる電流を抑制でき、装置を大型化せずに電力変換の効率を向上可能な電力変換装置を提供する。【解決手段】電力変換装置１は、三相交流電源９１に接続され、三相交流電源９１の交流を直流に変換するコンバータ回路Ｃと、コンバータ回路Ｃの直流出力端子４２ａ、４２ｂに接続され、コンデンサからなる平滑回路Ｓと、平滑回路Ｓの直流端子６１ａ、６２ｂに接続され、平滑回路Ｓの直流を交流に変換して交流負荷９２に出力するインバータ回路Ｉと、コンバータ回路Ｃを二相変調方式によりＰＷＭ制御するコンバータ制御部１２と、インバータ回路Ｉを二相変調方式によりＰＷＭ制御するインバータ制御部１３と、を備える。コンバータ制御部１２は、インバータ制御部１３で用いる二相変調用の二相変調用信号を用いてコンバータ回路Ｃの二相変調方式によるＰＷＭ制御を行う。【選択図】図１Ａ</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>eNrjZBAP8A93DVJw9vcLcw0K9vT3U3BxDfN0duVhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGRsYGhmYm5haOxkQpAgAcVh_3</recordid><startdate>20230202</startdate><enddate>20230202</enddate><creator>KOHATA MASARU</creator><creator>YANAGISAWA MINORU</creator><scope>EVB</scope></search><sort><creationdate>20230202</creationdate><title>POWER CONVERSION DEVICE</title><author>KOHATA MASARU ; YANAGISAWA MINORU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2023016478A3</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>KOHATA MASARU</creatorcontrib><creatorcontrib>YANAGISAWA MINORU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KOHATA MASARU</au><au>YANAGISAWA MINORU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>POWER CONVERSION DEVICE</title><date>2023-02-02</date><risdate>2023</risdate><abstract>To provide a power conversion device capable of suppressing a current flowing in a filter even in a case where a converter circuit side phase and an inverter circuit side phase are deviated from each other at two-phase modulation, and of improving the power conversion efficiency without increasing a size of the device.SOLUTION: A power conversion device 1 comprises: a converter circuit C connected with a three-phase AC power supply 91 to convert an AC of the three-phase AC power supply 91 into a DC; a smoothing circuit S connected with DC output terminals 42a and 42b of the converter circuit C, consisting of a capacitor; an inverter circuit I connected with DC terminals 61a and 62b of the smoothing circuit S to convert a DC of the smoothing circuit S into an AC and output the AC to an AC load 92; a converter controller 12 that performs PWM control of the converter circuit C by the two-phase modulation system; and an inverter controller 13 that performs PWM control of the inverter circuit I by the two-phase modulation system. The converter controller 12 performs PWM control of the converter circuit C by the two-phase modulation system by using a two-phase modulation signal for two-phase modulation used by the inverter controller 13.SELECTED DRAWING: Figure 1A
【課題】二相変調時にコンバータ回路側とインバータ回路側の位相がずれた場合でも、フィルタに流れる電流を抑制でき、装置を大型化せずに電力変換の効率を向上可能な電力変換装置を提供する。【解決手段】電力変換装置１は、三相交流電源９１に接続され、三相交流電源９１の交流を直流に変換するコンバータ回路Ｃと、コンバータ回路Ｃの直流出力端子４２ａ、４２ｂに接続され、コンデンサからなる平滑回路Ｓと、平滑回路Ｓの直流端子６１ａ、６２ｂに接続され、平滑回路Ｓの直流を交流に変換して交流負荷９２に出力するインバータ回路Ｉと、コンバータ回路Ｃを二相変調方式によりＰＷＭ制御するコンバータ制御部１２と、インバータ回路Ｉを二相変調方式によりＰＷＭ制御するインバータ制御部１３と、を備える。コンバータ制御部１２は、インバータ制御部１３で用いる二相変調用の二相変調用信号を用いてコンバータ回路Ｃの二相変調方式によるＰＷＭ制御を行う。【選択図】図１Ａ</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 |
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