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JP2011223734A5 - - Google Patents

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JP2011223734A5
JP2011223734A5 JP2010090016A JP2010090016A JP2011223734A5 JP 2011223734 A5 JP2011223734 A5 JP 2011223734A5 JP 2010090016 A JP2010090016 A JP 2010090016A JP 2010090016 A JP2010090016 A JP 2010090016A JP 2011223734 A5 JP2011223734 A5 JP 2011223734A5
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power conversion
conversion system
voltage command
cascade
pwm
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JP2010090016A
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JP2011223734A (en
JP5624792B2 (en
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単位セルをカスケードに接続した構成を有する電力変換システムにおいて、該電力変換システムは、該単位セルが、電圧指令値に含まれる基本波成分と同じ基本波成分を有するＰＷＭパルスを出力するように、フィードフォアードで該電圧指令値を修正する修正手段を有することを特徴としたカスケードマルチレベル電力変換システム。 In the power conversion system having a configuration in which unit cells are connected in cascade, the power conversion system outputs a PWM pulse having the same fundamental wave component as the fundamental wave component included in the voltage command value . A cascade multi-level power conversion system comprising correction means for correcting the voltage command value by feedforward. 請求項１の電力変換システムにおいて、該修正手段が、該電圧指令の変調率と、該電圧指令値との位相差を元に位相修正値を出力する機能を有することを特徴とした電力変換システム。   2. The power conversion system according to claim 1, wherein the correcting means has a function of outputting a phase correction value based on a phase difference between the modulation rate of the voltage command and the voltage command value. . 単位セルをカスケードに接続した構成を有する電力変換システムにおいて、該電力変換システムは、単位セルが、電圧指令値に含まれる基本波成分と同じ基本波成分を有するＰＷＭパルスを出力するように、フィードフォアードで補正値テーブルを参照して、該電圧指令値を修正することを特徴としたカスケードマルチレベル電力変換システム。 In the power conversion system having a configuration in which unit cells are connected in cascade, the power conversion system feeds the unit cell so that it outputs a PWM pulse having the same fundamental wave component as the fundamental wave component included in the voltage command value. A cascade multilevel power conversion system, wherein the voltage command value is corrected by referring to a correction value table in a forward manner. 単位セルをカスケードに接続した構成を有する電力変換システムにおいて、該電力変換システムは、該単位セルはＰＷＭ制御によってＰＷＭパルスを出力する電力変換システムであって、次の制御周期内の各単位セルの所望の電圧指令の平均値を計算し、次の制御周期で該平均値をＰＷＭ制御用の電圧指令値としてＰＷＭ制御を実施する機能を有することを特徴としたカスケードマルチレベル電力変換システム。   In a power conversion system having a configuration in which unit cells are connected in cascade, the power conversion system is a power conversion system in which the unit cells output PWM pulses by PWM control, and each unit cell in the next control cycle A cascade multilevel power conversion system having a function of calculating an average value of a desired voltage command and performing PWM control using the average value as a voltage command value for PWM control in the next control cycle. 単位セルをカスケードに接続した構成を有する電力変換システムにおいて、該電力変換システムは、同相の各単位セルのＰＷＭ用の搬送波の位相を等間隔でずらしており、且つ、各ＰＷＭ用の電圧指令値が異なっていて、且つ、各ＰＷＭパルスの基本波成分が大略同じであることを特徴としたカスケードマルチレベル電力変換システム。   In the power conversion system having a configuration in which unit cells are connected in cascade, the power conversion system is configured to shift the phase of the PWM carrier wave of each unit cell in the same phase at equal intervals, and the voltage command value for each PWM And the fundamental wave component of each PWM pulse is substantially the same, a cascade multilevel power conversion system.
JP2010090016A 2010-04-09 2010-04-09 Power converter Active JP5624792B2 (en)

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JP2010090016A JP5624792B2 (en) 2010-04-09 2010-04-09 Power converter

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JP2011223734A JP2011223734A (en) 2011-11-04
JP2011223734A5 true JP2011223734A5 (en) 2013-05-16
JP5624792B2 JP5624792B2 (en) 2014-11-12

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Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5752580B2 (en) * 2011-12-12 2015-07-22 株式会社東芝 Power converter
JP5938108B2 (en) * 2012-01-11 2016-06-22 ボンバルディール・トランスポーテイション・ゲゼルシヤフト・ミット・ベシュレンクテル・ハフツング Generation of switching sequence of cascaded multi-level converter
CN102664418B (en) * 2012-04-19 2014-07-02 威凡智能电气高科技有限公司 PLC (programmable logic controller)-based on-line monitoring method in STATCOM (static synchronous compensator)
KR101791290B1 (en) * 2013-07-02 2017-11-20 엘에스산전 주식회사 Multi-level medium voltage inverter
CN104065062B (en) * 2014-06-23 2016-08-24 许继电气股份有限公司 The properly functioning modulation control method of STATCOM
JP2016067124A (en) * 2014-09-25 2016-04-28 株式会社日立製作所 Power compensation apparatus and power compensation method
JP6614704B2 (en) * 2016-12-06 2019-12-04 東芝三菱電機産業システム株式会社 Power converter
JP6704864B2 (en) * 2017-01-16 2020-06-03 株式会社日立製作所 Power converter
JP6892812B2 (en) * 2017-10-12 2021-06-23 株式会社日立製作所 Power converter
US11437816B2 (en) 2018-11-27 2022-09-06 Hitachi Energy Switzerland Ag STATCOM arrangement without phase reactors
WO2020111513A1 (en) * 2018-11-29 2020-06-04 중앙제어 주식회사 Device for converting three-phase power regardless of direction of upward rotation
JP7375553B2 (en) * 2020-01-06 2023-11-08 富士電機株式会社 power converter
JP7305594B2 (en) * 2020-04-06 2023-07-10 東芝キヤリア株式会社 power converter
KR102549613B1 (en) * 2021-01-28 2023-06-29 부경대학교 산학협력단 Devices and Method for Controlling the DC-link Voltage Balancing for Modular Converters

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0928083A (en) * 1995-07-11 1997-01-28 Hitachi Ltd Pulse width modulation controller
JP2000287453A (en) * 1999-03-31 2000-10-13 Mitsubishi Electric Corp Multiplex power converter
DE112006003912B4 (en) * 2006-06-16 2014-05-22 Mitsubishi Electric Corp. Control device for energy converters

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