JP2013090483A - 電力伝送装置、送電装置、受電装置及び電力伝送方法 - Google Patents
電力伝送装置、送電装置、受電装置及び電力伝送方法 Download PDFInfo
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- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
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Abstract
【解決手段】電力伝送装置は、電力を送電し、送電量を検知する送電量検出部と、受電装置と通信する送電装置通信部と、送電量Pt及び受電装置から受信した受電量Prから電力伝送効率E1を算出し、送電量Ptと電力伝送効率E1の関係が運用可能領域にないと判定した場合、送電を停止する送電装置制御部と、を備える送電装置と、送電装置から電力を受電し、受電量Prを検知する受電量検出部と、送電装置と通信する受電装置通信部と、受電量Prを受電装置通信部を介して送電装置に送信する受電装置制御部と、を備える受電装置と、を備える。
【選択図】図1
Description
(電力伝送装置の構成)
図1は、本実施形態の電力伝送装置の構成を示すブロック図である。図1に示すように、電力伝送装置は、電力を送電する送電装置10と、送電された電力を受電する受電装置20と、を備える。送電装置10と受電装置20とは、例えば、電磁誘導方式又は磁界共鳴方式により電力を伝送する。電力の伝送方式はこれらに限られるものではない。以下、電磁誘導方式又は磁界共鳴方式により電力を伝送する場合について説明する。
送電装置制御部17は、送電量検出部15によって検知した送電量及び受電量検出部27によって検知され、送電装置通信部18を介して受信した受電量から電力伝送効率E1を算出し、この電力伝送効率及び送電量に基づいて送電した電力のうち受電されない電力が閾値を超えた場合に、電力増幅部12を制御して送電を停止する。
送電装置制御部17は連続して電力伝送効率E1を算出してもよい。また、送電装置制御部17は、一定時間ごとに、或いは送電開始などのイベントごとに電力伝送効率E1を算出してもよい。
この式を変形すると次の(3)式が得られる。
図3における運用可能領域は(3)式を満たす領域である。図3の斜線によって示した、この(3)式を満たさない領域31である運用不可能領域に電力伝送効率E1と送電量Ptがなった場合、送電装置制御部17は電力増幅部12を制御して送電を停止する。
以上のべたように、本実施形態の電力伝送装置は、電力を送電し、送電量Ptを検知する送電量検出部15と、受電装置20と通信する送電装置通信部18と、送電量Pt及び受電装置20から受信した受電量Prから電力伝送効率E1を算出し、送電量Ptと電力伝送効率E1の関係が運用可能領域にないと判定した場合、送電を停止する送電装置制御部17と、を備える送電装置10と、送電装置10から電力を受電し、受電量Prを検知する受電量検出部27と、送電装置10と通信する受電装置通信部28と、受電量Prを受電装置通信部28を介して送電装置10に送信する受電装置制御部26と、を備える受電装置20と、を備える。
(電力伝送装置の構成)
図7は、本実施形態の電力伝送装置の受電装置20の構成を示すブロック図である。電力伝送装置は、電力を送電する送電装置10と、送電された電力を受電する受電装置20と、を備える。送電装置10の構成は第1の実施形態の送電装置10の構成と同様である。
送電装置制御部17は、送電量検出部15によって検知した送電量及び、受電量検出部27及び受電装置制御部26によって疑似負荷72の負荷を変化させることにより検知され、送電装置通信部18を介して受信した受電量から電力伝送効率E1を算出し、この電力伝送効率及び送電量に基づいて送電した電力のうち受電されない電力が閾値を超えた場合に、電力増幅部12を制御して送電を停止する。
以上のべたように、本実施形態の電力伝送装置は、電力を送電し、送電量Ptを検知する送電量検出部15と、受電装置20と通信する送電装置通信部18と、送電量Pt及び受電装置20から受信した受電量Prから電力伝送効率E1を算出し、送電量Ptと電力伝送効率E1の関係が運用可能領域にないと判定した場合、送電を停止する送電装置制御部17と、を備える送電装置10と、送電装置10から電力を受電し、電圧を変換するDC/DC部23と、DC/DC部23によって電圧が変換された電力を入力する負荷24と、負荷の抵抗値が変化する疑似負荷72と、DC/DC部23の出力先を負荷24または疑似負荷72に切り替えるスイッチ71と、DC/DC部23の出力電力から受電量Prを検知する受電量検出部27と、送電装置通信部18と通信を行う受電装置通信部28と、受電量検出部27が検知した受電量を、受電装置通信部28を介して送電装置通信部18に送信し、受電量検出部27が検出したDC/DC部23の出力電圧値に基づいてスイッチ71を切り替え、疑似負荷72の負荷の抵抗値を変化させる受電装置制御部26と、を備える。
(電力伝送装置の構成)
図10は、本実施形態の電力伝送装置の送電装置10と受電装置20の構成を示すブロック図である。電力伝送装置は、電力を送電する送電装置10と、送電された電力を受電する受電装置20と、を備える。送電装置10の構成は第1の実施形態の送電装置10の構成と同様である。
送電装置制御部17は、送電量検出部15によって検知した送電量及び受電量検出部27によって検知され、送電装置通信部18を介して受信した受電量から電力伝送効率E1を算出し、この電力伝送効率及び送電量に基づいて送電した電力のうち受電されない電力が閾値を超えた場合に、電力増幅部12を制御して送電量Ptを低下させ、消費電力変更部24Aを制御して負荷24の消費電力を低下させる。
以上述べたように、本実施形態の電力伝送装置は、電力を送電し、送電量Ptを検知する送電量検出部15と、受電装置20と通信する送電装置通信部18と、送電量Pt及び受電装置20から受信した受電量Prから電力伝送効率E1を算出し、送電量Ptと電力伝送効率E1の関係が運用可能領域にないと判定した場合、送電を停止する送電装置制御部17と、を備える送電装置10と、送電装置10から電力を受電し、電圧を変換するDC/DC部23と、DC/DC部23によって電圧が変換された電力を入力する負荷24と、負荷の消費電力を変更する消費電力変更部24Aと、DC/DC部23の出力電力から受電量Prを検知する受電量検出部27と、送電装置通信部18と通信を行う受電装置通信部28と、受電量検出部27が検知した受電量を、受電装置通信部28を介して送電装置通信部18に送信し、受電装置通信部28が受信した制御信号に基づいて負荷の消費電力を変化させる受電装置制御部26と、を備える。
(電力伝送装置の構成)
本実施形態の電力伝送装置の構成は、第1の実施形態乃至第3の実施形態の電力伝送装置の構成を採用することができる。
本実施形態の電力伝送装置の動作は、第1の実施形態乃至第3の実施形態の電力伝送装置の動作を採用することができる。
以上述べたように、本実施形態の電力伝送装置は、送電装置10が、受電装置20の載置位置を示す載置位置表示装置1201と、送電装置10の載置位置を正すことを促す旨を表示する載置位置修正表示装置1202と、情報を表示する表示装置1203と、警告を知らせる警告灯1204と、音声を発するスピーカ1205と、を備える。
15:送電量検出部
17:送電装置制御部
18:送電装置通信部
20:受電装置
26:受電装置制御部
27:受電量検出部
28:受電装置通信部
Claims (28)
- 電力を送電する送電部と、
前記送電部によって送電される送電量を検知する送電量検出部と、
通信を行う送電装置通信部と、
を具備する送電装置と、
電力を受け取る受電部と、
前記受電部が受電した電力を入力する負荷と、
前記受電部の出力電力から前記受電量を検知する受電量検出部と、
前記送電装置通信部と通信を行う受電装置通信部と、
前記受電量を、前記受電装置通信部を介して前記送電装置に送信する受電装置制御部と、
を具備する受電装置と、
を備え、
前記送電装置は、
前記送電量及び前記受電量から算出した電力伝送効率に基づいて前記送電部の送電を制御する送電装置制御部を
さらに具備する電力伝送装置。 - 前記送電装置制御部は、
前記送電量と前記電力伝送効率との関係が閾値を超える送電ロスを生じさせると判定した場合、送電を停止する請求項1記載の電力伝送装置。 - 前記送電装置制御部は、
前記送電量と前記電力伝送効率との関係が閾値を超える送電ロスを生じさせないと判定した場合、送電を開始する請求項1記載の電力伝送装置。 - 前記受電装置は、
負荷の抵抗値が変化する疑似負荷と、
前記受電部からの出力を前記負荷または前記疑似負荷に切り替えるスイッチと、
をさらに備え、
前記送電装置制御部は、
前記送電量と前記電力伝送効率との関係が閾値を超える送電ロスを生じさせると判定した場合、送電を停止するとともに、受電装置制御部に前記疑似負荷の抵抗値を変化させて前記受電量を前記送電装置に送信させる請求項1記載の電力伝送装置。 - 前記受電装置は、
負荷の抵抗値が変化する疑似負荷と、
前記受電部からの出力を前記負荷または前記疑似負荷に切り替えるスイッチと、
をさらに備え、
前記送電装置制御部は、
前記送電量と前記電力伝送効率との関係が閾値を超える送電ロスを生じさせないと判定した場合、送電を開始する請求項1記載の電力伝送装置。 - 前記受電装置は、
負荷の消費電力を変化させる消費電力変更部をさらに備え、
前記送電装置制御部は、
前記送電量と前記電力伝送効率との関係が閾値を超える送電ロスを生じさせると判定した場合、前記消費電力変更部に前記負荷の消費電力を変化させて前記受電量を送信させる請求項1記載の電力伝送装置。 - 前記受電装置は、
負荷の消費電力を変化させる消費電力変更部をさらに備え、
前記送電装置制御部は、
前記送電量と前記電力伝送効率との関係が閾値を超える送電ロスを生じさせると判定した場合、送電量を低下させ、前記消費電力変更部に前記負荷の消費電力を変化させて前記受電量を送信させる請求項1記載の電力伝送装置。 - 前記受電装置は、
負荷の消費電力を変化させる消費電力変更部をさらに備え、
前記送電装置制御部は、
前記送電量と前記電力伝送効率との関係が閾値を超える送電ロスを生じさせないと判定した場合、送電を開始する請求項1記載の電力伝送装置。 - 前記送電装置は、
前記受電装置を載置する面に載置位置修正表示装置をさらに備え、
前記送電装置制御部は、
前記送電量と前記電力伝送効率との関係が閾値を超える送電ロスを生じさせると判定した場合、前記載置位置修正表示装置を点灯させる請求項1記載の電力伝送装置。 - 前記送電装置は、
表示装置をさらに備え、
前記送電装置制御部は、
前記表示装置に前記送電量を表示する請求項1記載の電力伝送装置。 - 前記送電装置は、
表示装置をさらに備え、
前記送電装置制御部は、
前記表示装置に前記電力伝送効率を表示する請求項1記載の電力伝送装置。 - 前記送電装置は、
表示装置をさらに備え、
前記送電装置制御部は、
前記表示装置に前記電力伝送効率のレベルをスケールによって表示する請求項1記載の電力伝送装置。 - 前記受電装置は、
表示装置をさらに備え、
前記送電装置制御部は、
前記表示装置に前記送電量を表示する請求項1記載の電力伝送装置。 - 前記受電装置は、
表示装置をさらに備え、
前記送電装置制御部は、
前記表示装置に前記電力伝送効率を表示する請求項1記載の電力伝送装置。 - 前記受電装置は、
表示装置をさらに備え、
前記送電装置制御部は、
前記表示装置に前記電力伝送効率のレベルをスケールによって表示する請求項1記載の電力伝送装置。 - 前記送電装置は、
音声を発するスピーカをさらに備え、
前記送電装置制御部は、
前記送電量と前記電力伝送効率との関係が閾値を超える送電ロスを生じさせると判定した場合、前記スピーカから警報を発声させる請求項1記載の電力伝送装置。 - 電力を電力供給対象である受電装置に送電する送電部と、
前記送電部によって送電される送電量を検知する送電量検出部と、
前記受電装置と通信を行う送電装置通信部と、
前記送電量及び前記送電装置通信部から入力した前記受電装置が検知した受電量から算出した電力伝送効率に基づいて前記送電部の送電を制御する送電装置制御部と、
を備える送電装置。 - 前記送電装置制御部は、
前記送電量と前記電力伝送効率との関係が閾値を超える送電ロスを生じさせると判定した場合、送電を停止する請求項17記載の電力伝送装置の送電装置。 - 前記受電装置は、
負荷の抵抗値が変化する疑似負荷と、
前記受電部からの出力を前記負荷または前記疑似負荷に切り替えるスイッチと、
をさらに備え、
前記送電装置制御部は、
前記送電量と前記電力伝送効率との関係が閾値を超える送電ロスを生じさせると判定した場合、送電を停止するとともに、前記受電装置に前記疑似負荷の抵抗値を変化させて前記受電量を送信させる請求項17記載の電力伝送装置の送電装置。 - 前記受電装置は、
負荷の消費電力を変化させる消費電力変更部をさらに備え、
前記送電装置制御部は、
前記送電量と前記電力伝送効率との関係が閾値を超える送電ロスを生じさせると判定した場合、前記消費電力変更部に前記負荷の消費電力を変化させて前記受電量を送信させる請求項17記載の電力伝送装置の送電装置。 - 電力供給装置である送電装置から電力を受け取る受電部と、
前記受電部が受電した電力を入力する負荷と、
前記受電部の出力電力から受電量を検知する受電量検出部と、
前記送電装置と通信を行う受電装置通信部と、
前記送電装置が送電した送電量と前記受電量に基づいて電力伝送効率を算出して送電の制御に用いる前記受電量を送信する受電装置制御部と、
を備える受電装置。 - 前記送電装置制御部は、
前記送電量と前記電力伝送効率との関係が閾値を超える送電ロスを生じさせると判定した場合、送電を停止する請求項21記載の電力伝送装置の受電装置。 - 前記受電装置は、
負荷の抵抗値が変化する疑似負荷と、
前記受電部からの出力を前記負荷または前記疑似負荷に切り替えるスイッチと、
をさらに備え、
前記送電装置制御部は、
前記送電量と前記電力伝送効率との関係が閾値を超える送電ロスを生じさせると判定した場合、送電を停止するとともに、前記受電装置制御部に前記疑似負荷の抵抗値を変化させて前記受電量を送信させる請求項21記載の電力伝送装置の受電装置。 - 前記受電装置は、
負荷の消費電力を変化させる消費電力変更部をさらに備え、
前記送電装置制御部は、
前記送電量と前記電力伝送効率との関係が閾値を超える送電ロスを生じさせると判定した場合、前記消費電力変更部に前記負荷の消費電力を変化させて前記受電量を送信させる請求項21記載の電力伝送装置の受電装置。 - 送電装置は、
送電部によって送電される送電量を検知し、
送電装置制御部によって前記送電量及び受電装置の受電量から算出した電力伝送効率に基づいて前記送電部の送電を制御し、
受電装置は、
受電部と電力を受け取って負荷に供給し、
受電量検出部によって前記受電部の出力電力から受電量を検知し、
前記受電量を前記送電装置に送信する
電力伝送方法。 - 前記送電装置は、
前記送電量と前記電力伝送効率との関係が閾値を超える送電ロスを生じさせると判定した場合、送電を停止する請求項25記載の電力伝送方法。 - 前記受電装置は、
負荷の抵抗値が変化する疑似負荷と、
前記受電部からの出力を前記負荷または前記疑似負荷に切り替えるスイッチと、
をさらに備え、
前記送電装置は、
前記送電量と前記電力伝送効率との関係が閾値を超える送電ロスを生じさせると判定した場合、送電を停止するとともに、前記受電装置の受電装置制御部に前記疑似負荷の抵抗値を変化させて前記受電量を送信させる請求項25記載の電力伝送方法。 - 前記受電装置は、
負荷の消費電力を変化させる消費電力変更部をさらに備え、
前記送電装置は、
前記送電量と前記電力伝送効率との関係が閾値を超える送電ロスを生じさせると判定した場合、前記消費電力変更部に前記負荷の消費電力を変化させ、前記受電装置の受電装置制御部に前記受電量を送信させる請求項25記載の電力伝送方法。
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JP2018133922A (ja) * | 2017-02-15 | 2018-08-23 | キヤノン株式会社 | 充電制御装置およびその制御方法、並びにプログラム |
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