JP6178433B2 - 電力変換装置 - Google Patents
電力変換装置 Download PDFInfo
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- JP6178433B2 JP6178433B2 JP2015555855A JP2015555855A JP6178433B2 JP 6178433 B2 JP6178433 B2 JP 6178433B2 JP 2015555855 A JP2015555855 A JP 2015555855A JP 2015555855 A JP2015555855 A JP 2015555855A JP 6178433 B2 JP6178433 B2 JP 6178433B2
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
- H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
- H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/797—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/483—Converters with outputs that each can have more than two voltages levels
- H02M7/4833—Capacitor voltage balancing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/483—Converters with outputs that each can have more than two voltages levels
- H02M7/487—Neutral point clamped inverters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/483—Converters with outputs that each can have more than two voltages levels
- H02M7/49—Combination of the output voltage waveforms of a plurality of converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/539—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
- H02M7/5395—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
- H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
- H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/81—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal arranged for operation in parallel
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0025—Arrangements for modifying reference values, feedback values or error values in the control loop of a converter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/0077—Plural converter units whose outputs are connected in series
Description
図1は、本発明の実施の形態に係る電力変換装置の主回路構成を示す概略ブロック図である。本発明の実施の形態に係る電力変換装置は、直流電源回路である平滑回路から供給される直流電力を三相交流電力に変換する。電力変換装置は、変圧器2を介して交流系統1に直列に多重接続された複数の3レベル変換器と、複数の3レベル変換器の動作を制御する制御装置10とを備える。たとえば電力変換装置は、5台の3レベル変換器31〜35により構成される。以下の説明では、1台の3レベル変換器を1段と数えて、5台の3レベル変換器31〜35が多重に接続されて5段変換器を構成するものとする。また、5台の3レベル変換器31〜35を区別して称するときには、3レベル変換器31を「1段目」とし、3レベル変換器32を「2段目」とし、3レベル変換器33を「3段目」とし、3レベル変換器34を「4段目」とし、3レベル変換器35を「5段目」と称するものとする。
図2は、図1に示した3レベル変換器の構成を詳細に説明する回路図である。3レベル変換器31〜35の各々は、図2に示す単相3レベル回路を三台用いて構成された三相インバータである。図2では、3レベル変換器31を構成する三台の単相3レベル回路のうち、U相−X相に関する構成について代表的に示すが、V相−Y相、W相−Z相についても同様の構成となっている。
図4は、図1に示す制御装置10の機能ブロック図である。
図5を参照して、電圧指令演算部18は、電流制御部40と、加算器42,44,46と、コンデンサ電圧バランス制御回路180とを含む。電流制御部40は、減算器16により算出された電流差(三相電流指令とCTにより検出された電流との差)がゼロとなるように交流系統1に印加すべき電圧として、三相電圧指令Vu1 *,Vv1 *,Vw1 *を生成する。電流制御部40は、たとえば電流差を比例制御または比例積分制御にしたがって増幅することにより三相電圧指令Vu1 *,Vv1 *,Vw1 *を生成する。
図11を参照して、キャリア位相補正部26は、減算器260と、PI演算部262とを含む。減算器260は、電圧センサ8が検出したコンデンサC11の直流電圧ED1から電圧センサ9が検出したコンデンサC12の直流電圧ED2を減算して電圧差ED(=ED1−ED2)を出力する。
Claims (2)
- 交流電源に直列に多重接続された複数の3レベル変換器と、
前記複数の3レベル変換器の動作を制御する制御装置とを備え、
前記複数の3レベル変換器の各々は、前記交流電源と、直流正母線、直流負母線および直流中性点母線との間に設けられ、直流電圧を3つの電圧値の間で変化する交流電圧に変換可能に構成され、
前記直流正母線および前記直流負母線の間には、第1および第2のコンデンサが直列に接続され、かつ、前記第1および第2のコンデンサの接続点は前記直流中性点母線に接続され、
前記制御装置は、
前記複数の3レベル変換器の出力電圧指令を演算する演算部と、
キャリア信号を生成するキャリア信号生成部と、
前記直流中性点母線の電位変動に基づいて前記キャリア信号の位相を補正する補正部と、
前記補正部により位相が補正された前記キャリア信号を基準位相として所定量ずつ位相を遅らせることにより複数のキャリア信号を生成するとともに、前記出力電圧指令と前記複数のキャリア信号の各々とを比較することにより、前記複数の3レベル変換器の各々の制御指令を生成するパルス幅変調制御部とを含む、電力変換装置。 - 前記補正部は、前記第1のコンデンサの両端の電圧と前記第2のコンデンサの両端の電圧との電圧差に基づいて、前記キャリア信号の位相の補正量を演算する、請求項1に記載の電力変換装置。
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PCT/JP2014/050020 WO2015102049A1 (ja) | 2014-01-06 | 2014-01-06 | 電力変換装置 |
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US (1) | US9755551B2 (ja) |
EP (1) | EP3093976B1 (ja) |
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JP6426462B2 (ja) * | 2014-12-24 | 2018-11-21 | 株式会社東芝 | 電力変換装置およびその制御方法 |
US10123443B2 (en) * | 2014-12-25 | 2018-11-06 | Fuji Electric Co., Ltd. | Semiconductor device |
KR101869279B1 (ko) * | 2015-10-05 | 2018-06-21 | 금호전기주식회사 | Led 램프 |
TWI630784B (zh) * | 2016-11-30 | 2018-07-21 | 國立清華大學 | 中性點箝位換流器 |
WO2019180763A1 (ja) * | 2018-03-19 | 2019-09-26 | 三菱電機株式会社 | 電力変換装置および回転機駆動システム |
JP7249238B2 (ja) * | 2019-08-09 | 2023-03-30 | 東芝三菱電機産業システム株式会社 | 直列多重電力変換装置 |
WO2021044597A1 (ja) * | 2019-09-05 | 2021-03-11 | 東芝三菱電機産業システム株式会社 | 電力変換装置 |
CN114977861A (zh) * | 2022-07-29 | 2022-08-30 | 深圳市首航新能源股份有限公司 | 一种母线电压补偿方法、电子设备及其系统 |
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JP2500140B2 (ja) | 1993-02-01 | 1996-05-29 | 株式会社東芝 | 中性点クランプ式コンバ―タの制御装置 |
JP2888104B2 (ja) * | 1993-09-01 | 1999-05-10 | 株式会社日立製作所 | 電力変換装置 |
JP3186369B2 (ja) | 1993-09-09 | 2001-07-11 | 富士電機株式会社 | 3レベルインバータの制御回路 |
JP3248321B2 (ja) | 1993-11-10 | 2002-01-21 | 富士電機株式会社 | 3レベルインバータの制御回路 |
JPH07245969A (ja) * | 1994-03-02 | 1995-09-19 | Toshiba Corp | 電力変換装置 |
JPH09149658A (ja) * | 1995-11-24 | 1997-06-06 | Hitachi Ltd | 直列多重型インバータ装置 |
DE19729479A1 (de) | 1997-07-10 | 1999-01-14 | Abb Daimler Benz Transp | Pulsweitenmodulationsverfahren für in Serie geschaltete Umrichter |
JP4698305B2 (ja) * | 2005-07-05 | 2011-06-08 | 株式会社日立メディコ | 電源装置及びこれを用いた磁気共鳴イメージング装置 |
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EP2348627A1 (de) * | 2010-01-25 | 2011-07-27 | ABB Research Ltd. | Wandlerschaltung sowie Verfahren zum Betreiben einer mehrstufigen Wandlerschaltung |
WO2011110472A1 (de) | 2010-03-10 | 2011-09-15 | Abb Schweiz Ag | Verfahren zum betrieb einer umrichterschaltung sowie vorrichtung zur durchführung des verfahrens |
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JP5734672B2 (ja) * | 2011-01-12 | 2015-06-17 | 株式会社東芝 | 半導体電力変換装置 |
JP2013223279A (ja) * | 2012-04-13 | 2013-10-28 | Toshiba Corp | 電力変換装置 |
ES2682693T3 (es) * | 2012-11-21 | 2018-09-21 | Otis Elevator Company | Convertidor multinivel |
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JP6237400B2 (ja) * | 2014-03-27 | 2017-11-29 | 株式会社安川電機 | 発電装置、制御装置、制御方法、発電システム、電力変換装置及びシステム |
CN105099241B (zh) * | 2014-04-18 | 2019-03-19 | 通用电气公司 | 控制器、电能变换系统和方法 |
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JPWO2015102049A1 (ja) | 2017-03-23 |
US9755551B2 (en) | 2017-09-05 |
CN105900328A (zh) | 2016-08-24 |
EP3093976A4 (en) | 2017-06-21 |
EP3093976B1 (en) | 2019-04-17 |
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CN105900328B (zh) | 2018-11-06 |
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