JP5891940B2 - 3レベルユニットインバータ - Google Patents
3レベルユニットインバータ Download PDFInfo
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- JP5891940B2 JP5891940B2 JP2012113512A JP2012113512A JP5891940B2 JP 5891940 B2 JP5891940 B2 JP 5891940B2 JP 2012113512 A JP2012113512 A JP 2012113512A JP 2012113512 A JP2012113512 A JP 2012113512A JP 5891940 B2 JP5891940 B2 JP 5891940B2
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- 230000002457 bidirectional effect Effects 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 20
- 230000007935 neutral effect Effects 0.000 claims description 17
- 230000003111 delayed effect Effects 0.000 claims description 15
- 230000000630 rising effect Effects 0.000 claims description 10
- 230000001934 delay Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
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Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
- H02M7/493—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 the static converters being 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
- 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
- H02M7/497—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 sinusoidal output voltages being obtained by combination of several voltages being out of phase
-
- 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
- H02M7/505—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 thyratron or thyristor type requiring extinguishing means
- H02M7/515—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M7/525—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency
- H02M7/527—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency by pulse width modulation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Description
また、各相のIGBTの直列接続点と交流出力との間には交流フィルタと並列接続用リアクトルが接続される。交流フィルタはU相用がLu1とCu、V相用がLv1とCv、W相用がLw1とCwで、コンデンサはスター接続されている。並列接続用リアクトルは、V相用がLu2、V相用がLv2、W相用がLw2である。
また、出力電流偏差である差動増幅器G2の出力の極性を反転器IN1で反転した値をIGBTQ2及びQ3のオンパルスの立上がりを遅延させるオン遅延回路DL2とDL3に入力し、この出力電流の偏差値に比例してIGBTQ2及びQ3用のオンパルスの立上がりを遅延する。
実施例2の動作では、自ユニットの出力電流の絶対値が全ユニットの出力電流の平均値より小さい場合にもPWMパルスの幅を調整しているが、このパルス調整は出力電流の増減に影響していない。従って、結果的に実施例1と同様の出力電流の補正効果が得られる。即ち、各ユニット出力電流の絶対値が全ユニットの出力電流の平均値より大きい場合のみ、電流を減少するように調整する補正効果が得られる。
Q3、Q4、Qu3、Qu4、Qv3、Qv4、Qw3、Qw4・・・IGBT
Du1,Du2、Dv1、Dv2、Dw1、Dw2、Dx・・・ダイオード
L1,L2、Lu1、Lu2、Lv1、Lv2、Lw1、Lw2・・・リアクトル
C1〜C3、Cu、Cv、Cw、Cx・・・コンデンサ LD・・・負荷
UN1〜UN3・・・ユニット LC、LC0・・・ローカル制御回路
MC,MC0・・・主制御装置 DL1〜DL4・・・オン遅延回路
GDU1〜GDU4・・・ゲート駆動回路 RI、Rx
CP1〜CP3・・・コンパレータ G1、G2・・・増幅器
ML1、ML2・・・掛算器 LM1、LM2・・・リミッタ
AND・・・論理積ゲート IN1・・・反転器
Claims (2)
- 正極と負極と中性極を備えた直流電源から交流電圧を作り出すインバータ装置であって、前記直流電源の正極と負極との間に接続されるそれぞれダイオードを逆並列に接続したIGBTを直列接続した上下アームと、前記直流電源の中性極と前記上下アームの直列接続点との間に接続されるIGBTを逆並列接続した双方向スイッチと、からなる3レベル変換回路を適用したインバータユニットを複数台備え、前記各インバータユニットの交流出力端子同士を並列接続し、共通の制御装置から前記各ユニット内のIGBTにパルス信号を与えるユニットインバータ装置において、
前記各ユニット内部に、各々のユニットの交流出力電流を検出する電流検出器と、各ユニットの出力電流と全ユニットの出力電流の平均値との差分を検出する出力電流偏差検出回路と、出力電流の極性に応じて電流偏差の絶対値を求める電流偏差絶対値回路と、パルス信号の立上がりを遅延するオン信号遅延回路とを有し、
自ユニットの電流の絶対値が全ユニットの出力電流の平均値より大きくかつ出力電流の極性が正の時には、上アームのIGBT用パルス信号と前記双方向スイッチを構成するIGBTのうち下アームのIGBTと互いに排他的動作をするIGBT用のパルス信号立上がりを電流偏差の絶対値に応じて遅延させ、自ユニットの電流の絶対値が平均より大きくかつ出力電流の極性が負のときには、下アームのIGBT用パルス信号と前記双方向スイッチを構成するIGBTのうち上アームのIGBTと互いに排他的動作をするIGBT用のパルス信号の立上がりを電流偏差の絶対値に応じて遅延させることを特徴とする3レベルユニットインバータ装置。 - 正極と負極と中性極を備えた直流電源から交流電圧を作り出すインバータ装置であって、前記直流電源の正極と負極との間に接続されるそれぞれダイオードを逆並列に接続したIGBTを直列接続した上下アームと、前記直流電源の中性極と前記上下アームの直列接続点との間に接続されるIGBTを逆並列接続した双方向スイッチと、からなる3レベル変換回路を適用したインバータユニットを複数台備え、前記各インバータユニットの交流出力端子同士を並列接続し、共通の制御装置から前記各ユニット内のIGBTにパルス信号を与えるユニットインバータ装置において、
前記各ユニット内部に、各々のユニットの交流出力電流を検出する電流検出器と、各ユニットの出力電流と全ユニットの出力電流の平均値との差分を検出する出力電流偏差検出回路と、パルス信号の立上がりを遅延するオン信号遅延回路とを有し、
自ユニットの電流が全ユニットの出力電流の平均値より大きい時には、上アームのIGBT用パルス信号と前記双方向スイッチを構成するIGBTのうち下アームのIGBTと互いに排他的動作をするIGBT用のパルス信号立上がりを電流偏差の絶対値に応じて遅延させ、自ユニットの電流が出力電流の平均値より小さい時には、下アームのIGBT用パルス信号と前記双方向スイッチを構成するIGBTのうち上アームのIGBTと互いに排他的動作をするIGBT用のパルス信号の立上がりを電流偏差の絶対値に応じて遅延させることを特徴とする3レベルユニットインバータ装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012113512A JP5891940B2 (ja) | 2012-05-17 | 2012-05-17 | 3レベルユニットインバータ |
CN201310122128.0A CN103427691B (zh) | 2012-05-17 | 2013-04-09 | 三电平单元逆变器系统 |
KR1020130039113A KR101973676B1 (ko) | 2012-05-17 | 2013-04-10 | 3 레벨 유닛 인버터 |
US13/861,527 US9143052B2 (en) | 2012-05-17 | 2013-04-12 | Three-level unit inverter system |
Applications Claiming Priority (1)
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JP2012113512A JP5891940B2 (ja) | 2012-05-17 | 2012-05-17 | 3レベルユニットインバータ |
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JP2013240252A JP2013240252A (ja) | 2013-11-28 |
JP5891940B2 true JP5891940B2 (ja) | 2016-03-23 |
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JP2012113512A Active JP5891940B2 (ja) | 2012-05-17 | 2012-05-17 | 3レベルユニットインバータ |
Country Status (4)
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US (1) | US9143052B2 (ja) |
JP (1) | JP5891940B2 (ja) |
KR (1) | KR101973676B1 (ja) |
CN (1) | CN103427691B (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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US8842454B2 (en) * | 2010-11-29 | 2014-09-23 | Solarbridge Technologies, Inc. | Inverter array with localized inverter control |
DE102015105192A1 (de) * | 2015-04-04 | 2016-10-06 | Sma Solar Technology Ag | Treiberschaltung, Schaltungsanordnung umfassend eine Treiberschaltung und Wechselrichter umfassend eine Schaltungsanordnung |
KR101695546B1 (ko) * | 2015-06-01 | 2017-01-12 | 엘에스산전 주식회사 | 인버터 병렬 운전 시스템 |
JP6784089B2 (ja) * | 2016-08-02 | 2020-11-11 | 株式会社明電舎 | マルチレベル電力変換装置のユニット制御装置 |
JP6897051B2 (ja) * | 2016-10-07 | 2021-06-30 | 富士電機株式会社 | 電力変換システム |
US10199978B2 (en) | 2016-12-16 | 2019-02-05 | Fuji Electric Co., Ltd. | Multiphase driver device and three-phase driver device |
JP6965976B2 (ja) * | 2017-02-10 | 2021-11-10 | 株式会社明電舎 | 横流電流抑制制御装置 |
JP6834557B2 (ja) * | 2017-02-10 | 2021-02-24 | 株式会社明電舎 | 横流電流抑制制御装置 |
US10284094B2 (en) * | 2017-03-10 | 2019-05-07 | Kabushiki Kaisha Toshiba | Current balance adjustment circuit and power conversion system |
JP6676830B1 (ja) * | 2018-11-21 | 2020-04-08 | 東芝三菱電機産業システム株式会社 | 電力変換装置 |
EP3826166A1 (en) * | 2019-11-25 | 2021-05-26 | Carrier Corporation | Power module and converter with asymmetrical semiconductor rating arrangement |
JP7387558B2 (ja) * | 2020-08-25 | 2023-11-28 | ニチコン株式会社 | スイッチング電源装置 |
WO2023249057A1 (ja) * | 2022-06-24 | 2023-12-28 | パナソニックIpマネジメント株式会社 | 溶接用電源装置及びその制御方法 |
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DE3161614D1 (en) * | 1980-03-28 | 1984-01-19 | Siemens Ag | Inverter device |
JPS5812556Y2 (ja) * | 1981-11-16 | 1983-03-10 | 東洋電機製造株式会社 | インバ−タ並列運転システムの不平衡電流検出装置 |
JPH0433583A (ja) | 1990-05-28 | 1992-02-04 | Mitsubishi Electric Corp | 誘導電動機の制御装置 |
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2012
- 2012-05-17 JP JP2012113512A patent/JP5891940B2/ja active Active
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2013
- 2013-04-09 CN CN201310122128.0A patent/CN103427691B/zh active Active
- 2013-04-10 KR KR1020130039113A patent/KR101973676B1/ko active IP Right Grant
- 2013-04-12 US US13/861,527 patent/US9143052B2/en active Active
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Publication number | Publication date |
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US20130308357A1 (en) | 2013-11-21 |
CN103427691A (zh) | 2013-12-04 |
CN103427691B (zh) | 2017-05-10 |
KR101973676B1 (ko) | 2019-04-29 |
JP2013240252A (ja) | 2013-11-28 |
US9143052B2 (en) | 2015-09-22 |
KR20130129081A (ko) | 2013-11-27 |
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