JP2013153583A - 電圧変換装置の制御装置 - Google Patents
電圧変換装置の制御装置 Download PDFInfo
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Abstract
【解決手段】電圧変換装置の制御装置(30)は、第1及び第2スイッチング素子(Q1,Q2)を択一的にオンとすることで片アーム駆動を実現可能な電圧変換装置(12)を制御する。電圧変換装置の制御装置は、第1及び第2スイッチング素子の各々のオンオフを切替えるスイッチング制御信号(PWI1,PWI2)を夫々生成するスイッチング制御信号生成手段と、第1アーム及び第2アームによる片アーム駆動を相互に切替える際に、スイッチング制御信号の立ち上がりタイミングで、第1又は第2スイッチング素子を流れる駆動電流の電流値(IL)を検出する電流検出手段と、検出された電流値を用いて駆動電流の平均値を推定する電流推定手段と、推定された平均値に基づいて駆動電流を制御する電流制御手段とを備える。
【選択図】図6
Description
以上のように、上述した特許文献1から3に記載されている片アーム駆動を行う場合には、ゼロ電流付近の電流値を正確に検出することが困難であるため、アームの切替え時に適切な制御が実行できないおそれがあるという技術的問題点を有している。
Claims (4)
- 互いに直列に接続される第1スイッチング素子及び第2スイッチング素子を択一的にオンとすることで、前記第1スイッチング素子を含んでなる第1アーム及び前記第2スイッチング素子を含んでなる第2アームのいずれか一方のみによる片アーム駆動を実現可能な電圧変換装置の制御装置であって、
前記第1スイッチング素子及び前記第2スイッチング素子の各々のオンオフを切替えるスイッチング制御信号を夫々生成するスイッチング制御信号生成手段と、
前記第1アームによる片アーム駆動及び前記第2アームによる片アーム駆動を相互に切替える際に、前記スイッチング制御信号の立ち上がりタイミングで、前記第1スイッチング素子又は前記第2スイッチング素子を流れる駆動電流の電流値を検出する電流検出手段と、
前記検出された電流値を用いて前記駆動電流の平均値を推定する電流推定手段と、
前記推定された平均値に基づいて前記駆動電流を制御する電流制御手段と
を備えることを特徴とする電圧変換装置の制御装置。 - 前記電流推定手段は、前記検出された電流値が連続して所定の範囲内となった場合に、前記駆動電流の平均値がゼロに近いゼロ付近値であると推定し、
前記電流制御手段は、前記駆動電流の平均値が前記ゼロ付近値であると推定された場合に、前記ゼロ付近値に対応するゼロ付近制御を行うように前記スイッチング制御信号生成手段を制御する
ことを特徴とする請求項1に記載の電圧変換装置の制御装置。 - 前記検出された電流値が連続して所定の範囲内となった場合の電流値をゼロと推定するゼロ電流推定手段と、
前記ゼロと推定された電流値及び前記駆動電流の平均値の推移に基づいて、前記駆動電流の平均値がゼロとなるタイミングを推定するゼロタイミング推定手段と
を備え、
前記電流制御手段は、前記駆動電流の平均値が前記ゼロタイミングでゼロとなるように前記スイッチング制御信号生成手段を制御する
ことを特徴とする請求項2に記載の電圧変換装置の制御装置。 - 前記電流制御手段は、前記ゼロタイミングで前記第1アームによる片アーム駆動及び前記第2アームによる片アーム駆動が相互に切替わるように前記スイッチング制御信号生成手段を制御することを特徴とする請求項3に記載の電圧変換装置の制御装置。
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US14/370,613 US9502977B2 (en) | 2012-01-25 | 2013-01-24 | Control apparatus for voltage converting apparatus |
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JP2016116389A (ja) * | 2014-12-17 | 2016-06-23 | トヨタ自動車株式会社 | 昇圧制御装置 |
JP2016149902A (ja) * | 2015-02-13 | 2016-08-18 | トヨタ自動車株式会社 | 昇圧制御装置 |
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KR102096810B1 (ko) * | 2017-10-18 | 2020-04-06 | 히타치 존슨 컨트롤즈 쿠쵸 가부시키가이샤 | 전력 변환 장치 및 냉동 공조 기기 |
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