JP2013021795A5 - - Google Patents
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- JP2013021795A5 JP2013021795A5 JP2011152448A JP2011152448A JP2013021795A5 JP 2013021795 A5 JP2013021795 A5 JP 2013021795A5 JP 2011152448 A JP2011152448 A JP 2011152448A JP 2011152448 A JP2011152448 A JP 2011152448A JP 2013021795 A5 JP2013021795 A5 JP 2013021795A5
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- arm side
- switching elements
- upper arm
- voltage
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第１の発明は、上段アーム側と下段アーム側の各スイッチング素子が互いに直列接続されてなる複数のレグが互いに並列接続され、上記各レグの各中点に多相交流電源が接続されてＡＣ／ＤＣコンバータ回路が構成される電力変換装置であって、上記各スイッチング素子に対してオン／オフ駆動用の正負両極の電圧を印加するアーム駆動回路が上記上段アーム側と下段アーム側とに個別に設けられるとともに、直流電源からの電力により上記正負両極の電圧をそれぞれ充電する正電圧印加用と負電圧印加用の各キャパシタが上記上段アーム側と下段アーム側とに個別に設けられ、上記各レグにそれぞれ配置される両極性ブートストラップ回路と、上記各キャパシタの充電のために上記各アーム駆動回路を制御する制御回路とを備え、上記制御回路は、上記上段アーム側と下段アーム側の各アーム駆動回路に対して、上記多相交流電源の各相の電圧の中で最も高い電圧が入力されているレグの上段アーム側のスイッチング素子、および最も低い電圧が入力されているレグの下段アーム側のスイッチング素子のみをオンする制御信号を、上記各相の電圧変化に応じて繰り返し出力するものである。 In the first invention, a plurality of legs in which switching elements on the upper arm side and the lower arm side are connected in series to each other are connected in parallel to each other, and a multi-phase AC power source is connected to each midpoint of each leg. A DC / DC converter circuit is a power conversion device in which arm drive circuits that apply positive and negative voltage for on / off drive to each switching element are separately provided on the upper arm side and the lower arm side. And each capacitor for positive voltage application and negative voltage application for charging the positive and negative bipolar voltages with electric power from a DC power supply is provided separately for the upper arm side and the lower arm side, respectively. A bipolar bootstrap circuit disposed in each leg, and a control circuit for controlling each arm drive circuit for charging each capacitor, The path is a switching element on the upper arm side of the leg to which the highest voltage among the voltages of each phase of the multiphase AC power supply is input to the arm drive circuits on the upper arm side and the lower arm side, A control signal for turning on only the switching element on the lower arm side of the leg to which the lowest voltage is input is repeatedly output according to the voltage change of each phase.
第２の発明は、上段アーム側と下段アーム側の各スイッチング素子が互いに直列接続されてなる複数のレグが互いに並列接続され、直流電源の高圧側と低圧側とが上記各レグの入力側の両端に接続される電力変換装置であって、上記各スイッチング素子に対してオン／オフ駆動用の正負両極の電圧を印加するアーム駆動回路が上記上段アーム側と下段アーム側とに個別に設けられるとともに、上記直流電源からの電力により上記正負両極の電圧をそれぞれ充電する正電圧印加用と負電圧印加用の各キャパシタが上記上段アーム側と下段アーム側とに個別に設けられ、上記各レグにそれぞれ配置される両極性ブートストラップ回路と、上記各キャパシタの充電のために上記各アーム駆動回路を制御する制御回路とを備え、上記制御回路は、上記上段アーム側と下段アーム側の各アーム駆動回路に対して、上記上段アーム側のスイッチング素子の全てをオンし、かつ上記下段アーム側のスイッチング素子の全てをオフする期間と、上記上段アーム側のスイッチング素子の全てをオフし、かつ上記下段アーム側のスイッチング素子の全てをオンする期間と、を交互に設ける制御信号を出力するものである。 According to a second aspect of the present invention, a plurality of legs in which the switching elements on the upper arm side and the lower arm side are connected in series to each other are connected in parallel, and the high voltage side and the low voltage side of the DC power supply are connected to the input side of each leg. A power conversion device connected to both ends, and arm drive circuits for applying positive / negative bipolar voltages for on / off drive to each of the switching elements are individually provided on the upper arm side and the lower arm side. with a positive voltage the capacitor for applying a negative voltage is applied to charge each of the voltages of the positive and negative electrodes by the electric power from the DC power source is provided separately and the upper arm and the lower arm side, to each leg A bipolar bootstrap circuit disposed respectively, and a control circuit for controlling each arm drive circuit for charging each capacitor, the control circuit comprising: For each arm drive circuit on the upper arm side and lower arm side, a period in which all of the switching elements on the upper arm side are turned on and all of the switching elements on the lower arm side are turned off; A control signal for alternately providing a period in which all of the switching elements are turned off and all the switching elements on the lower arm side are turned on is output.
Claims (8)
上記各スイッチング素子に対してオン／オフ駆動用の正負両極の電圧を印加するアーム駆動回路が上記上段アーム側と下段アーム側とに個別に設けられるとともに、直流電源からの電力により上記正負両極の電圧をそれぞれ充電する正電圧印加用と負電圧印加用の各キャパシタが上記上段アーム側と下段アーム側とに個別に設けられ、上記各レグにそれぞれ配置される両極性ブートストラップ回路と、
上記各キャパシタの充電のために上記各アーム駆動回路を制御する制御回路とを備え、
上記制御回路は、上記上段アーム側と下段アーム側の各アーム駆動回路に対して、上記多相交流電源の各相の電圧の中で最も高い電圧が入力されているレグの上段アーム側のスイッチング素子、および最も低い電圧が入力されているレグの下段アーム側のスイッチング素子のみをオンする制御信号を、上記各相の電圧変化に応じて繰り返し出力するものである電力変換装置。 A plurality of legs in which the switching elements on the upper arm side and the lower arm side are connected in series to each other are connected in parallel to each other, and a polyphase AC power source is connected to each midpoint of each leg to constitute an AC / DC converter circuit A power conversion device,
Arm driving circuits for applying positive / negative bipolar voltages for on / off driving to the switching elements are individually provided on the upper arm side and the lower arm side, and the positive / negative bipolar electrodes are supplied by power from a DC power source . Bipolar bootstrap circuits, each of which is provided with a positive voltage application capacitor and a negative voltage application capacitor for charging a voltage individually on the upper arm side and the lower arm side, and are respectively disposed on the legs.
A control circuit for controlling each arm drive circuit for charging each capacitor,
The control circuit performs switching on the upper arm side of the leg to which the highest voltage among the voltages of each phase of the multiphase AC power source is input to the arm drive circuits on the upper arm side and the lower arm side. A power converter that repeatedly outputs a control signal for turning on only the switching element on the lower arm side of the leg to which the element and the lowest voltage are input according to the voltage change of each phase.
上記各スイッチング素子に対してオン／オフ駆動用の正負両極の電圧を印加するアーム駆動回路が上記上段アーム側と下段アーム側とに個別に設けられるとともに、上記直流電源からの電力により上記正負両極の電圧をそれぞれ充電する正電圧印加用と負電圧印加用の各キャパシタが上記上段アーム側と下段アーム側とに個別に設けられ、上記各レグにそれぞれ配置される両極性ブートストラップ回路と、
上記各キャパシタの充電のために上記各アーム駆動回路を制御する制御回路とを備え、
上記制御回路は、上記上段アーム側と下段アーム側の各アーム駆動回路に対して、上記上段アーム側のスイッチング素子の全てをオンし、かつ上記下段アーム側のスイッチング素子の全てをオフする期間と、上記上段アーム側のスイッチング素子の全てをオフし、かつ上記下段アーム側のスイッチング素子の全てをオンする期間と、を交互に設ける制御信号を出力するものである電力変換装置。 A plurality of legs in which the switching elements on the upper arm side and the lower arm side are connected in series to each other, and the high-voltage side and the low-voltage side of the DC power supply are connected to both ends of the input side of each leg. A conversion device,
With on / off arm drive circuit for applying a voltage of positive and negative electrodes for driving are provided individually and the upper arm and the lower arm side with respect to the respective switching elements, the positive and negative electrodes by the electric power from the DC power source A positive bootstrap circuit for charging a positive voltage and a negative voltage application for charging each of the above-mentioned voltages are separately provided on the upper arm side and the lower arm side, respectively, and a bipolar bootstrap circuit disposed on each leg,
A control circuit for controlling each arm drive circuit for charging each capacitor,
The control circuit is configured to turn on all the switching elements on the upper arm side and turn off all the switching elements on the lower arm side with respect to the arm drive circuits on the upper arm side and the lower arm side. A power converter that outputs a control signal that alternately turns off all the switching elements on the upper arm side and turns on all the switching elements on the lower arm side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011152448A JP5734120B2 (en) | 2011-07-11 | 2011-07-11 | Power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011152448A JP5734120B2 (en) | 2011-07-11 | 2011-07-11 | Power converter |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2013021795A JP2013021795A (en) | 2013-01-31 |
| JP2013021795A5 true JP2013021795A5 (en) | 2013-11-21 |
| JP5734120B2 JP5734120B2 (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011152448A Active JP5734120B2 (en) | 2011-07-11 | 2011-07-11 | Power converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5734120B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024004868A1 (en) * | 2022-06-27 | 2024-01-04 | 株式会社Ihi | Semiconductor switch drive circuit and power converter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3577934B2 (en) * | 1998-03-04 | 2004-10-20 | 松下電器産業株式会社 | Electric washing machine |
| US6765425B2 (en) * | 2002-03-01 | 2004-07-20 | International Rectifier Corporation | Mosgate device driver for synchronous rectification of a 3 phase sinusoidal source |
| JP5318692B2 (en) * | 2009-08-04 | 2013-10-16 | 住友重機械工業株式会社 | Power converter |
| CN102498668A (en) * | 2009-09-15 | 2012-06-13 | 三菱电机株式会社 | Gate drive circuit |
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2011
- 2011-07-11 JP JP2011152448A patent/JP5734120B2/en active Active
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