JP2019054665A5 - - Google Patents
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- JP2019054665A5 JP2019054665A5 JP2017178185A JP2017178185A JP2019054665A5 JP 2019054665 A5 JP2019054665 A5 JP 2019054665A5 JP 2017178185 A JP2017178185 A JP 2017178185A JP 2017178185 A JP2017178185 A JP 2017178185A JP 2019054665 A5 JP2019054665 A5 JP 2019054665A5
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- power
- power unit
- capacitor
- converter
- switching
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- 239000003990 capacitor Substances 0.000 claims description 13
- 238000009499 grossing Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 claims description 4
Description
本発明に係る電力変換装置は、直流電源に接続する一対の直流端子と、負荷に接続する交流端子と、複数のワイドバンドギャップ半導体素子から構成され直流電力を交流電力に変換する逆変換回路とワイドバンドギャップ半導体素子のスイッチング時に電荷を供給するために当該逆変換回路の入力側に接続されるスイッチング用コンデンサとを有するインバータパワーユニットと、一対の直流端子とインバータパワーユニットの入力側との間に設ける平滑化用コンデンサとを備え、スイッチング用コンデンサの容量は、平滑化用コンデンサの容量の１／２以下であり、平滑化用コンデンサとインバータパワーユニットとは、所定値以上のインダクタンスを有する配線を介して接続されることを特徴とする。 The power converter according to the present invention is a pair of DC terminals connected to a DC power supply, an AC terminal connected to a load, and an inverse conversion circuit configured of a plurality of wide band gap semiconductor elements and converts DC power to AC power An inverter power unit having a switching capacitor connected to the input side of the inverse conversion circuit for supplying electric charge at the time of switching of the wide band gap semiconductor element; and an inverter power unit provided between the pair of DC terminals and the input side of the inverter power unit. and a capacitor for smoothing the capacitance of the switching capacitor is less than half of the capacitance of the capacitor for smoothing, the capacitor and the inverter power unit for smoothing, via a wiring having a predetermined value or more inductance characterized in that it is connected.
Claims (4)
負荷に接続する交流端子と、
複数のワイドバンドギャップ半導体素子から構成され直流電力を交流電力に変換する逆変換回路と前記ワイドバンドギャップ半導体素子のスイッチング時に電荷を供給するために当該逆変換回路の入力側に接続されるスイッチング用コンデンサとを有するインバータパワーユニットと、
前記一対の直流端子と前記インバータパワーユニットの入力側との間に設ける平滑化用コンデンサと
を備え、
前記スイッチング用コンデンサの容量は、前記平滑化用コンデンサの容量の１／２以下であり、
前記平滑化用コンデンサと前記インバータパワーユニットとは、所定値以上のインダクタンスを有する配線を介して接続される
ことを特徴とする電力変換装置。 A pair of DC terminals connected to a DC power supply,
An AC terminal connected to the load,
An inverting circuit composed of a plurality of wide bandgap semiconductor elements for converting DC power into AC power, and a switching circuit connected to an input side of the inverting circuit for supplying electric charges at the time of switching of the wideband gap semiconductor element; An inverter power unit having a capacitor;
A smoothing capacitor provided between the pair of DC terminals and the input side of the inverter power unit,
The capacitance of the switching capacitor is not more than half of the capacitance of the smoothing capacitor,
Wherein A the inverter power unit and condenser for smoothing, a power conversion apparatus characterized by being connected through a wiring having a predetermined value or more inductance.
ことを特徴とする請求項１に記載の電力変換装置。 The said predetermined value of the said inductance is set to a value twice or more of the inductance on the electric current path between the said switching capacitor and the said reverse conversion circuit, The claim 1 characterized by the above-mentioned. Power converter.
架線から交流電力を集電するパンタグラフと前記一対の直流端子との間に、当該交流電力を直流電力に変換するコンバータパワーユニットを備える
ことを特徴とする請求項１または２に記載の電力変換装置。 The power converter is a railcar power converter,
The converter according to claim 1 or 2, further comprising a converter power unit that converts the AC power into DC power between the pantograph that collects AC power from the overhead wire and the pair of DC terminals . Power converter.
前記補助電源用パワーユニットは、前記インバータパワーユニットと前記平滑化用コンデンサとの間に並列に接続され、
前記平滑化用コンデンサと前記補助電源用パワーユニットとは、所定値以上のインダクタンスを有する配線を介して接続される
ことを特徴とする請求項３に記載の電力変換装置。 A power unit for an auxiliary power supply having a second inversion circuit and a second switching capacitor connected in parallel to an input side of the second inversion circuit;
The auxiliary power unit is connected in parallel between the inverter power unit and the smoothing capacitor,
The power conversion device according to claim 3 , wherein the smoothing capacitor and the power unit for an auxiliary power supply are connected via a wiring having an inductance equal to or greater than a predetermined value .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017178185A JP6823573B2 (en) | 2017-09-15 | 2017-09-15 | Power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017178185A JP6823573B2 (en) | 2017-09-15 | 2017-09-15 | Power converter |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2019054665A JP2019054665A (en) | 2019-04-04 |
| JP2019054665A5 true JP2019054665A5 (en) | 2020-01-16 |
| JP6823573B2 JP6823573B2 (en) | 2021-02-03 |
Family
ID=66013972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017178185A Active JP6823573B2 (en) | 2017-09-15 | 2017-09-15 | Power converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6823573B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7133524B2 (en) | 2019-09-13 | 2022-09-08 | 株式会社 日立パワーデバイス | Power converters, railway vehicle electrical systems |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112020003399T5 (en) | 2019-07-12 | 2022-04-07 | Rohm Co., Ltd. | SEMICONDUCTOR COMPONENT |
| WO2024004208A1 (en) * | 2022-07-01 | 2024-01-04 | 三菱電機株式会社 | Electric power conversion device |
-
2017
- 2017-09-15 JP JP2017178185A patent/JP6823573B2/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7133524B2 (en) | 2019-09-13 | 2022-09-08 | 株式会社 日立パワーデバイス | Power converters, railway vehicle electrical systems |
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