JP2014108000A - 電力変換装置 - Google Patents
電力変換装置 Download PDFInfo
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- JP2014108000A JP2014108000A JP2012260951A JP2012260951A JP2014108000A JP 2014108000 A JP2014108000 A JP 2014108000A JP 2012260951 A JP2012260951 A JP 2012260951A JP 2012260951 A JP2012260951 A JP 2012260951A JP 2014108000 A JP2014108000 A JP 2014108000A
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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
- H02M1/32—Means for protecting converters other than automatic disconnection
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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
- H02M1/36—Means for starting or stopping 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
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without 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
- H02M7/46—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without 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
-
- 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
- H02M7/4835—Converters with outputs that each can have more than two voltages levels comprising two or more cells, each including a switchable capacitor, the capacitors having a nominal charge voltage which corresponds to a given fraction of the input voltage, and the capacitors being selectively connected in series to determine the instantaneous output voltage
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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
- H02M1/0064—Magnetic structures combining different functions, e.g. storage, filtering or transformation
-
- 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
- H02M1/007—Plural converter units in cascade
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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
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
- H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
- H02M5/10—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Rectifiers (AREA)
Abstract
【解決手段】自己消弧能力を持つスイッチング素子Q1を直列に2個接続したレグ1と、コンデンサC1とを並列に接続してなるチョッパブリッジ単位変換器2を変換器ユニットとして、2個の変換器ユニットを直列に接続した相アーム3を構成する。正側相アーム3の一端は直流電源C2,C3の正側端子に接続され、他端は単相4巻線トランスTRの二次巻線正側に接続される。負側相アーム3の一端は直流電源負側端子に接続され、他端はトランスTRの三次巻線正側に接続される。トランスTRの二次巻線負側と三次巻線負側は互いに接続され、U相、V相、W相間でも交流中点Nacとして互いに接続される。トランスTRの4次巻線は、U相、V相、W相において、互いに直列接続され、デルタ結線の構成を有している。
【選択図】図1
Description
(VuRefは、出力したい交流電圧指令値)
この時、出力電圧Vuは以下のように出力される。
Vu=Vdc−VuP=Vdc−(Vdc−VuRef)=VuRef
負側変換器ユニット電圧VuN=Vdc−VuRef
(VuRefは、出力したい交流電圧指令)
この時、出力電圧Vuは以下のように出力される。
Vu=−Vdc+VuN
=−Vdc+(Vdc―VuRef)=−VuRef
交流負荷電流Iuは正側変換器ユニットと負側変換器ユニットとにそれぞれ流れる。
この時、正側変換器ユニットのコンデンサは、以下の式で表される電力PowerPによって充放電がなされる。
VuRefとIuが同位相すなわち力率1で動作している場合について計算すると、交流1周期でのPowerPの平均値はマイナスとなる。すなわち、上記動作モードのみで出力電圧制御を行うと、正側変換器ユニットのコンデンサ電圧平均値は一定に保つことができず、運転継続ができない。
VCrefは、変換器ユニットコンデンサ電圧指令値で、あらかじめ設定された値。
VCu_AVEは、U相正負全変換器ユニットのコンデンサ電圧平均値。
G(s)は制御ゲインでsはラプラス演算子。これは比例積分制御が適する。
Claims (4)
- 直流と交流とを互いに電力変換する電力変換装置であって、
自己消弧能力を持つスイッチング素子が直列に2個接続されたレグと、該レグと並列に接続されたコンデンサからなる構成要素を変換器ユニットとし、1以上の前記変換器ユニットが直列に接続された構成要素を相アームとしたとき、3相の各相に正側相アームと単相4巻線トランスと負側相アームとを含み、
前記正側相アームの1端は、前記4巻線トランスの二次巻線正側に接続され、他端は直流正側端子に接続され、
前記負側相アームの1端は、前記4巻線トランスの三次巻線正側に接続され、他端は直流負側端子に接続され、
前記4巻線トランスの二次巻線と三次巻線の負側は互いに接続されると共に3相間でも互いに接続され、
前記4巻線トランスの一次巻線負側は互いに接続され、
前記4巻線トランスの四次巻線はデルタ結線に接続され、
前記4巻線トランスの一次巻線正側と、高電圧交流系統の間に接続された第1の交流遮断器と、
前記4巻線トランスの四次巻線と低電圧交流電源の間に直列に接続された第2の交流遮断器と突入電流抑制用抵抗と、
を具備することを特徴とする電力変換装置。 - 前記電力変換装置の起動時、前記第1の交流遮断器を開放した状態で、前記第2の交流遮断器を投入することにより、前記突入電流抑制用抵抗で電流制限しながら、前記低電圧の交流電源から各変換器ユニットを構成するコンデンサに電荷を充電したのちに、前記交流遮断器を投入することを特徴とする請求項1記載の電力変換装置。
- 前記突入電流抑制用抵抗は前記四次巻線に接続され、前記第2の交流遮断器は前記低電圧交流電源に接続され、前記突入電流抑制用抵抗と前記第2の交流遮断器の間に3相短絡用スイッチが設けられることを特徴とする請求項1記載の電力変換装置。
- 直流と交流とを互いに電力変換する電力変換装置であって、
自己消弧能力を持つスイッチング素子が直列に2個接続されたレグと、該レグと並列に接続されたコンデンサからなる構成要素を変換器ユニットとしたとき、
前記変換器ユニットを複数個直列に接続して構成されるアームを3相並列に接続し、正側端を直流正側端子、負側端を直流負側端子、中間端子を交流端子とした電力変換器と、
スター結線で構成される一次巻線及び二次巻線と、デルタ結線で構成される三次巻線とを有し、前記二次巻線が前記電力変換器の交流端子に接続されたトランスと、
前記一次巻線と高電圧の交流電力系統の間に接続された第1の交流遮断器と、
前記三次巻線と低電圧の交流電源の間に直列接続された第2の交流遮断器及び突入電流抑制用抵抗と、
を具備することを特徴とする電力変換装置。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
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JP2012260951A JP6099951B2 (ja) | 2012-11-29 | 2012-11-29 | 電力変換装置 |
PCT/JP2013/079976 WO2014084010A1 (ja) | 2012-11-29 | 2013-11-06 | 電力変換装置 |
CN201380051187.1A CN104685771B (zh) | 2012-11-29 | 2013-11-06 | 电力变换装置 |
BR112015012350A BR112015012350A2 (pt) | 2012-11-29 | 2013-11-06 | aparelho de conversão de potência elétrica |
EP13858780.3A EP2928062B1 (en) | 2012-11-29 | 2013-11-06 | Power conversion device |
KR1020157006151A KR20150045462A (ko) | 2012-11-29 | 2013-11-06 | 전력 변환 장치 |
US14/702,417 US9722507B2 (en) | 2012-11-29 | 2015-05-01 | Electric power conversion apparatus |
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JP2012260951A JP6099951B2 (ja) | 2012-11-29 | 2012-11-29 | 電力変換装置 |
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JP6099951B2 JP6099951B2 (ja) | 2017-03-22 |
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US (1) | US9722507B2 (ja) |
EP (1) | EP2928062B1 (ja) |
JP (1) | JP6099951B2 (ja) |
KR (1) | KR20150045462A (ja) |
CN (1) | CN104685771B (ja) |
BR (1) | BR112015012350A2 (ja) |
WO (1) | WO2014084010A1 (ja) |
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JP2014230438A (ja) * | 2013-05-24 | 2014-12-08 | 株式会社東芝 | 電力変換装置 |
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JP2016208743A (ja) * | 2015-04-24 | 2016-12-08 | 株式会社東芝 | 電力変換装置 |
WO2017135147A1 (ja) * | 2016-02-04 | 2017-08-10 | 株式会社 東芝 | 電力変換装置 |
JP2017139895A (ja) * | 2016-02-04 | 2017-08-10 | 株式会社東芝 | 電力変換装置 |
WO2018124523A3 (ko) * | 2016-12-26 | 2018-08-23 | 주식회사 효성 | Mmc 컨버터의 서브모듈 제어기용 전원장치 |
JP6559907B1 (ja) * | 2018-04-24 | 2019-08-14 | 株式会社東芝 | 電力変換装置、及び定数取得方法 |
WO2019207640A1 (ja) | 2018-04-24 | 2019-10-31 | 株式会社東芝 | 電力変換装置、及び定数取得方法 |
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WO2020165954A1 (ja) * | 2019-02-12 | 2020-08-20 | 三菱電機株式会社 | 電力変換装置、および電力変換システム |
Also Published As
Publication number | Publication date |
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EP2928062A1 (en) | 2015-10-07 |
US20150236611A1 (en) | 2015-08-20 |
US9722507B2 (en) | 2017-08-01 |
EP2928062A4 (en) | 2017-03-15 |
EP2928062B1 (en) | 2018-07-25 |
CN104685771A (zh) | 2015-06-03 |
KR20150045462A (ko) | 2015-04-28 |
WO2014084010A1 (ja) | 2014-06-05 |
BR112015012350A2 (pt) | 2017-07-11 |
CN104685771B (zh) | 2017-07-18 |
JP6099951B2 (ja) | 2017-03-22 |
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