JP2010252446A - 非接触給電設備、非接触受電装置および非接触給電システム - Google Patents
非接触給電設備、非接触受電装置および非接触給電システム Download PDFInfo
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Abstract
【解決手段】給電設備1の一次自己共振コイル30と受電装置2の二次自己共振コイル60とが電磁場を介して共鳴することにより給電設備1から受電装置2へ非接触で給電が行なわれる。制御装置40は、高周波電源装置10を制御することによって一次自己共振コイル30から二次自己共振コイル60への給電を制御する。ここで、制御装置40は、一次自己共振コイル30と二次自己共振コイル60と間の距離に応じて変化するS11パラメータに基づいて一次自己共振コイル30と二次自己共振コイル60と間の距離を推定し、その推定された距離に基づいて給電制御を実行する。
【選択図】図1
Description
ここで、Z1は、送電用共鳴器の入力部から受電用共鳴器側を見たインピーダンスを示し、Z0は、入力部から電源装置側を見たインピーダンスを示す。また、Z1は、送電用共鳴器に入力される電圧V1と送電用共鳴器に入力される電流I1を用いて、次式によって表される。
好ましくは、制御装置は、S11パラメータに基づいて送電用共鳴器と受電用共鳴器との間の距離を推定し、その推定された距離に基づいて給電制御を実行する。
ここで、Z0は、一次コイル20の電力入力部から高周波電源装置10側を見たインピーダンスを示す。そして、走査周波数fnのS11パラメータが算出されると、制御装置40は、カウント値nがmよりも小さいか否かを判定する(ステップS150)。カウント値nがmよりも小さいと判定されると(ステップS150においてYES)、制御装置40は、カウント値nに(n+1)を設定し(ステップS160)、ステップS120へ処理を移行する。一方、ステップS150においてカウント値nがm以上であると判定されると(ステップS150においてNO)、制御装置40は、ステップS170へ処理を移行し、一連の処理が終了する。
Claims (15)
- 受電装置の受電用共鳴器と電磁場を介して共鳴することにより前記受電装置へ非接触で送電する送電用共鳴器と、
前記送電用共鳴器に接続され、所定の高周波電圧を発生する電源装置と、
前記電源装置を制御することによって前記送電用共鳴器から前記受電用共鳴器への給電を制御する制御装置とを備え、
前記制御装置は、前記送電用共鳴器と前記受電用共鳴器との間の距離に応じて変化するインピーダンスの周波数特性に基づいて給電制御を実行する、非接触給電設備。 - 前記制御装置は、前記インピーダンスの周波数特性に基づいて前記送電用共鳴器と前記受電用共鳴器との間の距離を推定し、その推定された距離に基づいて給電制御を実行する、請求項1に記載の非接触給電設備。
- 前記制御装置は、前記インピーダンスの周波数特性に基づいて推定された距離が所定値以下のとき、前記受電装置への給電を実行する、請求項2に記載の非接触給電設備。
- 前記制御装置は、前記送電用共鳴器と前記受電用共鳴器との間の距離に応じて変化する前記インピーダンスの周波数特性の振幅特性に基づいて、前記送電用共鳴器と前記受電用共鳴器との間の距離を推定する、請求項2または請求項3に記載の非接触給電設備。
- 前記制御装置は、前記送電用共鳴器と前記受電用共鳴器との間の距離に応じて変化する前記インピーダンスの周波数特性の位相特性に基づいて、前記送電用共鳴器と前記受電用共鳴器との間の距離を推定する、請求項2または請求項3に記載の非接触給電設備。
- 前記制御装置は、前記インピーダンスの周波数特性に基づいて前記受電装置の受電要否および前記受電装置への給電可否を判定し、前記受電装置へ給電可能と判定されたとき、前記インピーダンスの周波数特性の特異点に基づいて決定される共振周波数を有する電圧を発生するように前記電源装置を制御する、請求項1から請求項5のいずれかに記載の非接触給電設備。
- 前記送電用共鳴器に入力される電流を検出する電流測定手段と、
前記送電用共鳴器に入力される電圧を検出する電圧測定手段とをさらに備え、
前記制御装置は、所定の周波数帯における複数の周波数で所定の小電力が前記受電装置へ出力されるように前記電源装置を制御し、前記電圧測定手段によって検出される電圧および前記電流測定手段によって検出される電流に基づいて前記インピーダンスの周波数特性を算出する、請求項1から請求項6のいずれかに記載の非接触給電設備。 - 前記送電用共鳴器は、
前記電源装置に接続される一次コイルと、
前記一次コイルから電磁誘導により給電され、前記電磁場を発生する一次自己共振コイルとを含む、請求項1から請求項7のいずれかに記載の非接触給電設備。 - 給電設備の送電用共鳴器と電磁場を介して共鳴することにより前記給電設備から非接触で受電する受電用共鳴器と、
前記給電設備からの受電要否を前記給電設備においてインピーダンスの周波数特性に基づいて判定可能なように、前記給電設備からの受電要否に応じてインピーダンスを変更するインピーダンス変更装置とを備える非接触受電装置。 - 前記インピーダンス変更装置は、前記給電設備からの受電を終了するとき、前記給電設備において前記インピーダンスの周波数特性に基づいて受電終了を検知可能なように入力インピーダンスを変更する、請求項9に記載の非接触受電装置。
- 所定の高周波電力を出力可能な給電設備と、
前記給電設備から非接触で受電可能な受電装置とを備え、
前記給電設備は、
所定の高周波電圧を発生する電源装置と、
前記電源装置に接続され、前記電源装置から電力を受けて電磁場を発生する送電用共鳴器と、
前記電源装置を制御することによって前記送電用共鳴器から前記受電用共鳴器への給電を制御する制御装置とを含み、
前記受電装置は、前記電磁場を介して前記送電用共鳴器と共鳴することにより前記送電用共鳴器から非接触で受電する受電用共鳴器を含み、
前記制御装置は、前記送電用共鳴器と前記受電用共鳴器との間の距離に応じて変化するインピーダンスの周波数特性に基づいて給電制御を実行する、非接触給電システム。 - 前記制御装置は、前記インピーダンスの周波数特性に基づいて前記送電用共鳴器と前記受電用共鳴器との間の距離を推定し、その推定された距離に基づいて給電制御を実行する、請求項11に記載の非接触給電システム。
- 前記制御装置は、前記インピーダンスの周波数特性に基づいて推定された距離が所定値以下のとき、前記受電装置への給電を実行する、請求項12に記載の非接触給電システム。
- 前記受電装置は、前記給電設備からの受電を終了するとき、当該受電装置のインピーダンスを変更可能に構成されたインピーダンス変更装置をさらに含み、
前記制御装置は、前記受電装置において前記インピーダンス変更装置によりインピーダンスが変更されたときの予め求められたインピーダンスの周波数特性を用いて、受電終了に伴なう前記受電装置のインピーダンスの変更を前記インピーダンスの周波数特性に基づいて検知し、その検知結果に基づいて前記受電装置への給電を停止する、請求項11または請求項13のいずれかに記載の非接触給電システム。 - 前記送電用共鳴器は、
前記電源装置に接続される一次コイルと、
前記一次コイルから電磁誘導により給電され、前記電磁場を発生する一次自己共振コイルとを含み、
前記受電用共鳴器は、
前記電磁場を介して前記一次自己共振コイルと共鳴することにより前記一次自己共振コイルから受電する二次自己共振コイルと、
前記二次自己共振コイルによって受電された電力を電磁誘導により取出す二次コイルとを含む、請求項11から請求項14のいずれかに記載の非接触給電システム。
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JP2009096993A JP4865001B2 (ja) | 2009-04-13 | 2009-04-13 | 非接触給電設備、非接触受電装置および非接触給電システム |
CN200980158682.6A CN102396131B (zh) | 2009-04-13 | 2009-06-03 | 非接触供电设备、非接触受电装置以及非接触供电系统 |
KR1020117026538A KR101317293B1 (ko) | 2009-04-13 | 2009-06-03 | 비접촉 급전 설비, 비접촉 수전 장치 및 비접촉 급전 시스템 |
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US13/146,768 US8310108B2 (en) | 2009-04-13 | 2009-06-03 | Non-contact electric power supplying equipment, non-contact electric power receiving device, and non-contact electric power supplying system |
BRPI0924655A BRPI0924655B1 (pt) | 2009-04-13 | 2009-06-03 | equipamento de suprimento de energia elétrica sem contato e sistema de suprimento de energia elétrica sem contato |
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RU2011146047/07A RU2486651C1 (ru) | 2009-04-13 | 2009-06-03 | Бесконтактное оборудование снабжения электроэнергией, бесконтактное устройство приема электроэнергии и бесконтактная система снабжения электроэнергией |
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BRPI0924655A8 (pt) | 2018-04-03 |
EP2421121A1 (en) | 2012-02-22 |
JP4865001B2 (ja) | 2012-02-01 |
RU2486651C1 (ru) | 2013-06-27 |
KR20110137392A (ko) | 2011-12-22 |
BRPI0924655A2 (pt) | 2016-01-26 |
CN102396131A (zh) | 2012-03-28 |
KR20130096321A (ko) | 2013-08-29 |
BRPI0924655B1 (pt) | 2019-10-22 |
EP2421121A4 (en) | 2013-06-05 |
EP2421121B1 (en) | 2016-04-20 |
RU2011146047A (ru) | 2013-05-20 |
WO2010119577A1 (ja) | 2010-10-21 |
CN102396131B (zh) | 2014-11-26 |
US20120098348A1 (en) | 2012-04-26 |
KR101317293B1 (ko) | 2013-10-14 |
US8310108B2 (en) | 2012-11-13 |
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