JP6470832B2 - 電力変換装置及びその初期充電方法 - Google Patents
電力変換装置及びその初期充電方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 14
- 239000003990 capacitor Substances 0.000 claims description 68
- 238000006243 chemical reaction Methods 0.000 claims description 43
- 238000009499 grossing Methods 0.000 claims description 21
- 230000001360 synchronised effect Effects 0.000 claims description 16
- 238000004804 winding Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 10
- 238000004088 simulation Methods 0.000 description 7
- 230000001052 transient effect Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
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
- 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
- H02M5/40—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 with intermediate conversion into dc
- H02M5/42—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 with intermediate conversion into dc by static converters
- H02M5/44—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 with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—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 with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—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 with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M5/4585—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 with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only having a rectifier with controlled elements
-
- 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
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static 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
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from dc 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
- 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
- H02M5/40—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 with intermediate conversion into dc
- H02M5/42—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 with intermediate conversion into dc by static converters
- H02M5/44—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 with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—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 with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—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 with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- 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
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/125—Avoiding or suppressing excessive transient voltages or currents
-
- 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
- H02M1/0048—Circuits or arrangements for reducing losses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Rectifiers (AREA)
- Ac-Ac Conversion (AREA)
Description
R=44.9[mΩ]
L=1.29[mH]
C=3200[μF]
f=50[Hz]
θ=0[deg]
図4(1)は、上記シミュレーション条件時の数式(4)に示すコンデンサ電圧Vcの電圧波形であり、上述したように定常電圧Vc1と過渡電圧Vc2が加算された電圧波形となる。
条件:コンデンサ電圧Vcの最初の半波ピーク電圧値>入力電圧の2次側換算電圧V2のピーク電圧値
この場合のコンデンサCの初期充電時の直流電圧Vdcは、ダイオードブリッジを構成する整流ダイオードにより、初期充電時の直流電圧Vdc=Vcとなる最初の半波ピーク電圧値となり、そのまま保持されるため、入力電圧の2次側換算電圧V2よりも大きな電圧になる。
条件:コンデンサ電圧Vcの最初の半波ピーク電圧値=入力電圧V2の2次側換算電圧V2のピーク電圧値が一致する位相のとき
この場合のコンデンサCの初期充電時の直流電圧Vdcは、ダイオードブリッジを構成する整流ダイオードにより、初期充電時の直流電圧Vdc=Vcとなる最初の半波ピーク電圧値となり、そのまま保持されるが、入力電圧の2次側換算電圧V2を超えない。
その後(t2以降)は、入力電圧の2次側換算電圧V2が、コンデンサCの直流電圧Vdc以下となるため流れない。
条件:コンデンサ電圧Vcの最初の半波ピーク電圧値<入力電圧の2次側換算電圧V2のピーク電圧値
この場合のコンデンサCの初期充電時の直流電圧Vdcは、一旦、コンデンサ電圧Vcの最初の半波ピーク電圧値(タイミングt3)まで充電されるが、入力電圧の2次側換算電圧V2の値がコンデンサCの初期充電時の直流電圧Vdc以上になった時(タイミングt3〜t4)に再び充電される。この充電は、図7において、Vdc及びVcが初期電圧を持った場合に相当するため、結局直流電圧Vdcは、入力電圧の2次側換算電圧V2以上に充電される。
R=44.9[mΩ]
L=1.29[mH]
C=3200[μF]
f=50[Hz]
θ=0〜180[deg]
本実施例の場合、上記数式(6)を用いて計算した各投入位相におけるコンデンサ電圧Vcの最初の半波ピーク電圧値と、入力電圧の2次側換算電圧V2のピーク電圧値が交差する点(タイミングt5)が最適投入位相角θ1となる。図示した例の場合は最適投入位相角θ1(=103[deg])となる。具体的には下記の通りである。
コンデンサ電圧Vcの最初の半波(θ=0〜180[deg])でのピーク電圧値をプロットしたグラフとの交点(タイミングt5)の位相角θ1が最適投入位相角となる。本実施例の場合、上述したように最適投入位相角θ1は103[deg]となる。
2 計器用変圧器
3 同期開閉制御装置
10 入力変圧器
20 インバータ装置
21 コンバータ部
22 インバータ部
30 制御部
100 電力変換装置
Claims (4)
- 高圧電源をインバータ装置が要求する電源に変換する入力変圧器と、
前記高圧電源と前記入力変圧器の間に配置され、前記高圧電源から供給される高圧電力を前記入力変圧器に供給する電路を投入する遮断器と、
前記入力変圧器によって変換された交流電力を直流電力に変換するコンバータ部と、
前記コンバータ部によって変換された前記直流電力を平滑する平滑コンデンサと、
前記高圧電源の位相を検出し、所定の位相に到達したタイミングで、前記遮断器を投入する同期開閉制御装置と、
を備え、
前記同期開閉制御装置は、
前記所定の位相が前記平滑コンデンサの最初の半波ピーク電圧値と前記入力変圧器の入力電圧の2次側換算電圧のピーク電圧値が一致する位相のときに、前記遮断器を投入制御することを特徴とする電力変換装置。 - 高圧電源がU相、V相、W相からなる3相交流電源であって、
前記高圧電源をインバータ装置が要求する電源に変換する入力変圧器と、
前記高圧電源と前記入力変圧器の間に配置され、当該高圧電源から供給される高圧電力を前記入力変圧器に供給する電路を投入する遮断器と、
前記入力変圧器によって変換された交流電力を直流電力に変換するコンバータ部と、
前記コンバータ部によって変換された前記直流電力を平滑する平滑コンデンサと、
前記高圧電源の位相を検出し、所定の位相に到達したタイミングで、前記遮断器を投入制御する同期開閉制御装置と、
を、前記U相、V相、W相ごとに備え、
前記U相、V相、W相ごとに備えられた前記同期開閉制御装置は、
前記U相、V相、W相ごとに検出された前記高圧電源の前記所定の位相が、前記平滑コンデンサの最初の半波ピーク電圧値と前記入力変圧器の入力電圧の2次側換算電圧のピーク電圧値が一致する位相のときに、当該相に備えられた前記遮断器を投入制御することを特徴とする電力変換装置。 - 高圧電源をインバータ装置が要求する電源に変換する入力変圧器と、前記高圧電源と前記入力変圧器の間に配置され、当該高圧電源から供給される高圧電力を前記入力変圧器に供給する電路を投入または遮断する遮断器と、前記入力変圧器によって変換された交流電力を直流電力に変換するコンバータ部と、前記コンバータ部によって変換された前記直流電力を平滑する平滑コンデンサと、前記高圧電源の位相を検出し、所定の位相に到達したタイミングで、前記遮断器を投入又は遮断制御する同期開閉制御装置と、を備えた電力変換装置であって、
前記入力変圧器の入力電圧の2次側換算電圧のピーク電圧値と、前記入力変圧器の1次側及び2次側の2次側換算巻線抵抗R並びに1次側及び2次側の合計漏れインダクタンスと、前記平滑コンデンサの容量と、前記高圧電源の角周波数を用い、所定の演算式に基づいて、投入位相角をパラメータとして、0〜180[deg]の間、所定の間隔で前記投入位相角を変化させたときの前記平滑コンデンサの電圧を算出し、
前記入力電圧の2次側換算電圧のピーク電圧値と、前記平滑コンデンサの電圧が一致する投入位相角θ1を算出し、
前記同期開閉制御装置は、前記投入位相角θ1のタイミングで前記遮断器を投入することを特徴とする電力変換装置の初期充電方法。 - 前記入力変圧器の入力電圧の2次側換算電圧のピーク電圧値をV2m、前記入力変圧器の1次側及び2次側の2次側換算巻線抵抗をR、並びに1次側及び2次側の合計漏れインダクタンスをL、前記平滑コンデンサの容量をC、前記高圧電源の角周波数をω、前記平滑コンデンサの電圧をVc、前記パラメータとする前記投入位相角をθ、時間をtとするとき、
前記所定の演算式は、下式(8)で与えられることを特徴とする請求項3記載の電力変換装置の初期充電方法。
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US (1) | US10122253B2 (ja) |
EP (1) | EP3261243B1 (ja) |
JP (1) | JP6470832B2 (ja) |
CN (1) | CN107343388B (ja) |
WO (1) | WO2016132471A1 (ja) |
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JP6824479B1 (ja) * | 2020-02-25 | 2021-02-03 | 三菱電機株式会社 | 電力変換装置 |
CN113799663B (zh) * | 2021-11-19 | 2022-03-04 | 西南交通大学 | 一种动车供电传动系统、交直交牵引变流器及其控制方法 |
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JPH1198610A (ja) * | 1997-09-22 | 1999-04-09 | Toshiba Corp | 交流電気車制御装置 |
JP3496532B2 (ja) * | 1998-08-18 | 2004-02-16 | 日立工機株式会社 | 遠心機用モータの制御装置 |
JP2006074965A (ja) * | 2004-09-06 | 2006-03-16 | Honda Motor Co Ltd | 電源装置 |
JP2006350900A (ja) | 2005-06-20 | 2006-12-28 | Toshiba Mitsubishi-Electric Industrial System Corp | 電力変換装置 |
RU2558944C2 (ru) * | 2009-07-28 | 2015-08-10 | ТиЭйчИкс ЛТД. | Источник питания |
CN102035424A (zh) * | 2010-12-20 | 2011-04-27 | 青岛四方车辆研究所有限公司 | 动车组电源转换单相逆变器 |
JP5753035B2 (ja) * | 2011-09-07 | 2015-07-22 | 東芝三菱電機産業システム株式会社 | インバータ装置及び当該装置用入力変圧器の突入電流低減方法 |
JP5156149B1 (ja) * | 2012-01-18 | 2013-03-06 | 三菱電機株式会社 | 電力変換装置 |
WO2014186933A1 (en) * | 2013-05-20 | 2014-11-27 | Ge Energy Power Conversion Technology Ltd. | Input filter pre-charge fed by a medium-voltage grid supply |
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CN107343388A (zh) | 2017-11-10 |
US10122253B2 (en) | 2018-11-06 |
JPWO2016132471A1 (ja) | 2017-07-20 |
CN107343388B (zh) | 2019-11-15 |
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