JP6972445B1 - 電力変換装置 - Google Patents
電力変換装置 Download PDFInfo
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- JP6972445B1 JP6972445B1 JP2021542378A JP2021542378A JP6972445B1 JP 6972445 B1 JP6972445 B1 JP 6972445B1 JP 2021542378 A JP2021542378 A JP 2021542378A JP 2021542378 A JP2021542378 A JP 2021542378A JP 6972445 B1 JP6972445 B1 JP 6972445B1
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- 238000006243 chemical reaction Methods 0.000 claims description 47
- 230000017525 heat dissipation Effects 0.000 claims description 30
- 238000004458 analytical method Methods 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 11
- 239000003507 refrigerant Substances 0.000 claims description 11
- 238000013459 approach Methods 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 description 78
- 238000010586 diagram Methods 0.000 description 18
- 238000001816 cooling Methods 0.000 description 15
- 230000020169 heat generation Effects 0.000 description 11
- 239000003990 capacitor Substances 0.000 description 7
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- 238000013461 design Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
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Classifications
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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
- H02M7/42—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
- H02M7/53—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 triode or transistor type requiring continuous application of a control signal
- H02M7/537—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 triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse 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
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/327—Means for protecting converters other than automatic disconnection against abnormal temperatures
-
- 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
- H02M1/0054—Transistor switching losses
-
- 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
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- 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
- 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
-
- 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
-
- 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
Abstract
Description
図1〜図4は実施の形態1にかかる電力変換装置の構成および動作について説明するためのものであり、図1は電力変換装置の構成を説明するための電源と負荷を含めた回路構成図、図2は電力変換装置の制御装置の構成を説明するための機能ブロック図、図3は電力変換装置の制御装置における2つの動作モードの動作比率の設定動作を説明するためのフローチャート、図4は電力変換装置の出力波形と、サブインバータを構成する4つのスイッチング素子(半導体素子)それぞれのゲート波形を示す波形図である。
上記実施の形態1においては、モジュールの放熱特性から温度の偏りを分析し、動作比率を設定する例について説明した。本実施の形態2では、モジュールの温度の測定値に基づいて動作比率を設定する例について説明する。
Claims (6)
- それぞれ異なるモジュールに実装された2つのアームで構成したフルブリッジインバータ、
前記2つのアームのうちの第一アームに出力の極性を決めるための第一周波数でスイッチング動作をさせ、第二アームに前記第一周波数よりも高周波の第二周波数でPWM変調のためのスイッチング動作をさせる第一モードと、前記第二アームに前記第一周波数でスイッチング動作をさせ、前記第一アームに前記第二周波数でスイッチング動作をさせる第二モードとの間で、設定された動作比率に基づき動作モードを切り替えながら前記フルブリッジインバータを駆動制御する主制御部、
前記モジュールごとの冷却器における配置位置に関するデータと、前記配置位置と放熱特性との相関データとに基づいて、モジュール間での温度上昇の偏りを分析する偏り分析部、および
前記分析された温度上昇の偏りに基づいて前記動作比率を設定する動作比率設定部、
を備えたことを特徴とする電力変換装置。 - 交流電力としての出力周波数に合わせて単パルス出力するメインインバータと、前記メインインバータに直列接続された前記フルブリッジインバータとで階調制御インバータを構成したことを特徴とする請求項1に記載の電力変換装置。
- 前記動作比率設定部は、前記第一アームが実装された第一モジュールの方が、前記第二アームが実装された第二モジュールよりも温度が高くなるとの分析結果を受けると、前記動作比率における第一モードの割合を減少させ、逆の分析結果を受けると、前記第一モードの割合を増加させ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。
- それぞれ異なるモジュールに実装された2つのアームで構成したフルブリッジインバータ、
前記2つのアームのうちの第一アームに出力の極性を決めるための第一周波数でスイッチング動作をさせ、第二アームに前記第一周波数よりも高周波の第二周波数でPWM変調のためのスイッチング動作をさせる第一モードと、前記第二アームに前記第一周波数でスイッチング動作をさせ、前記第一アームに前記第二周波数でスイッチング動作をさせる第二モードとの間で、設定された動作比率に基づき動作モードを切り替えながら前記フルブリッジインバータを駆動制御する主制御部、
前記モジュールごとの温度を測定する温度センサ、および
前記第一アームが実装された第一モジュールの温度の検出値と前記第二アームが実装された第二モジュールの温度の検出値との差が目標温度差に近づくように、前記動作比率を設定する動作比率設定部
を備えたことを特徴とする電力変換装置。 - 前記モジュールごとの冷却器における配置位置に関するデータと、前記配置位置と放熱特性との相関データとに基づいて、モジュール間での温度上昇の偏りを分析する偏り分析部を備え、
前記動作比率設定部は、前記分析された温度上昇の偏りに基づいて、前記動作比率の初期値を設定することを特徴とする請求項4に記載の電力変換装置。 - 前記それぞれ異なるモジュールが、冷媒の流通経路における上流側と下流側に分かれて直列に配置されていることを特徴とする請求項1から5のいずれか1項に記載の電力変換装置。
Applications Claiming Priority (1)
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PCT/JP2021/006973 WO2022180709A1 (ja) | 2021-02-25 | 2021-02-25 | 電力変換装置 |
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JP6972445B1 true JP6972445B1 (ja) | 2021-11-24 |
JPWO2022180709A1 JPWO2022180709A1 (ja) | 2022-09-01 |
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JP2021542378A Active JP6972445B1 (ja) | 2021-02-25 | 2021-02-25 | 電力変換装置 |
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US (1) | US20240063730A1 (ja) |
EP (1) | EP4300802A4 (ja) |
JP (1) | JP6972445B1 (ja) |
WO (1) | WO2022180709A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN116345943A (zh) * | 2023-03-09 | 2023-06-27 | 深圳市正浩创新科技股份有限公司 | Ac/dc变换电路的控制方法、装置及可读存储介质 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005229714A (ja) * | 2004-02-12 | 2005-08-25 | Denso Corp | 2相変調方式 |
JP2013021891A (ja) * | 2011-07-14 | 2013-01-31 | Mitsubishi Electric Corp | 電力変換装置 |
JP2014014203A (ja) * | 2012-07-03 | 2014-01-23 | Mitsubishi Electric Corp | 電力変換装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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EP2357721B1 (en) * | 2008-11-18 | 2016-03-30 | Mitsubishi Electric Corporation | Power conversion device |
JP6279898B2 (ja) * | 2013-12-26 | 2018-02-14 | 株式会社東芝 | スイッチング制御装置 |
-
2021
- 2021-02-25 US US18/270,488 patent/US20240063730A1/en active Pending
- 2021-02-25 EP EP21927811.6A patent/EP4300802A4/en active Pending
- 2021-02-25 JP JP2021542378A patent/JP6972445B1/ja active Active
- 2021-02-25 WO PCT/JP2021/006973 patent/WO2022180709A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005229714A (ja) * | 2004-02-12 | 2005-08-25 | Denso Corp | 2相変調方式 |
JP2013021891A (ja) * | 2011-07-14 | 2013-01-31 | Mitsubishi Electric Corp | 電力変換装置 |
JP2014014203A (ja) * | 2012-07-03 | 2014-01-23 | Mitsubishi Electric Corp | 電力変換装置 |
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JPWO2022180709A1 (ja) | 2022-09-01 |
WO2022180709A1 (ja) | 2022-09-01 |
EP4300802A4 (en) | 2024-04-10 |
EP4300802A1 (en) | 2024-01-03 |
US20240063730A1 (en) | 2024-02-22 |
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