JP5694469B2 - 磁気機械システムを使用する無線電力転送 - Google Patents
磁気機械システムを使用する無線電力転送 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
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Description
・フェライト中の残留導電率による渦電流損失。ヒステリシスループを一周するエネルギーが速度に依存しないとき、ヒステリシス損失は周波数に比例して増大する。渦電流損失は、ヒステリシスループを広げる影響を有する。
・外部交流磁場HACの強さ
理論は、この上限はHAC’とともに線形に増大することを示す。この上限は磁気機械システムのための重要な設計パラメータである。それはまた、次式の比が一定のままであるかぎり、磁気機械システムを設計するいくらかの自由度が存在することを示す。
・材料特性
・周波数
・外部交流磁場強度
最大有能電力のための方程式は、磁気機械振動子の制限角度変位およびQ値の制約の下で決定される。
磁気機械システムの体積[m3]。
ρem:基本磁石の長さ対半径比
νem:基本磁石の比体積[m3/kg]
Hem:基本磁石の内部磁場強度[A/m]
α:充てん係数(システム体積に対する総磁気体積の比)
QUL:一つまたは複数の機械共振子の無負荷時のQ値。
f0:共振周波数[Hz]
HAC:外部印加交流磁場[A/m]
Pav_mech:有能機械電力。(負荷への最大電力)
二次側システムパラメータと物理量は次のものを含む。
前記アレイの周囲に形成された、また前記振動子に電磁的に連結されて前記振動子との電磁結合によって引き起こされる電流を生成する誘導コイルと、
出力電力の生成するための電流を受信する制御回路とを備えており、
各前記振動子が10m未満のサイズを有しているシステム。
静磁場の源を備え、前記静磁場は前記磁気素子を特定の回転位置に強要するエリア内に配置され、前記静磁場は、前記磁気素子が印加磁場の影響下で運動することを可能とする程に十分に弱く、
電気生成部を備え、それは、前記静磁場に対する前記磁気素子の前記運動に基づいて電気出力を生成するシステム。
前記振動子との電磁結合によって引き起こされる、電流を単一コイル構造に生成することを有し、さらに、
出力電力を生成するための電流を出力することを有している方法。
Claims (26)
- 無線場を介して電力を受信し、負荷に電力を供給するように構成された装置であって、前記装置は、
径方向対称形状で配置された磁気機械振動子のアレイであって、前記アレイは、外部交流磁場の力に応じて振動するように、また、振動誘導磁場を生成するように、構成される、磁気機械振動子のアレイと、
前記アレイの周囲に形成され、前記アレイに電磁的に結合されて前記振動誘導磁場から電力を抽出するコイルと、
を備え、前記コイルは、前記負荷に前記抽出された電力の少なくとも一部を供給するように構成される、装置。 - 前記径方向対称形状は、ディスク状である、請求項1に記載の装置。
- 前記磁気機械振動子のアレイは三次元アレイである、請求項1に記載の装置。
- 前記磁気機械振動子のアレイの各磁気機械振動子は、回転楕円体の軸に伴って列をなして配向される、請求項3に記載の装置。
- 前記アレイにおける前記磁気機械振動子の各々は、サスペンションに取り付けられ、電磁場によって誘導されたトルクに応じて前記サスペンションの力に対して、また逆らって、運動するように構成される、請求項1に記載の装置。
- 前記サスペンションは、機械ばねを備える、請求項5に記載の装置。
- 前記サスペンションとして静磁場を利用することをさらに備える、請求項5に記載の装置。
- 複数の磁気機械振動子の各々は、回転可能に搭載されている、請求項5に記載の装置。
- 負荷に電力を無線で供給する方法であって、前記方法は、
径方向対称形状で配置され、交流磁場にさらされた磁気機械振動子のアレイを介して、振動誘導磁場を生成することと、
前記アレイの周囲に巻かれ、前記アレイに電磁的に結合されたコイルを介して前記振動誘導磁場から電力を抽出することと、
前記抽出された電力の少なくとも一部を前記負荷へ供給することと、
を備える方法。 - 前記径方向対称形状は、ディスク状である、請求項9に記載の方法。
- 前記磁気機械振動子のアレイは三次元アレイである、請求項9に記載の方法。
- 前記磁気機械振動子のアレイの各磁気機械振動子は、回転楕円体の軸に伴って列をなして配向される、請求項11に記載の方法。
- 前記アレイにおける前記磁気機械振動子の各々は、サスペンションに取り付けられ、電磁場によって誘導されたトルクに応じて前記サスペンションの力に対して、また逆らって、運動するように構成される、請求項9に記載の方法。
- 前記サスペンションは、機械ばねを含む、請求項13に記載の方法。
- 前記サスペンションとして静磁場を利用することをさらに備える、請求項13に記載の方法。
- 複数の磁気機械振動子の各々は、回転可能に搭載されている、請求項13に記載の方法。
- 無線場を介して電力を受信し、負荷に電力を供給するように構成された装置であって、前記装置は、
径方向対称形状で配置された振動誘導磁場を生成する手段であって、前記生成する手段は、外部交流磁場の力に応じて振動するように、また、振動誘導磁場を生成するように、構成され、前記生成する手段は、磁気機械振動子のアレイからなる、生成する手段と、
前記振動誘導磁場から電力を抽出する手段と、
前記抽出された電力の少なくとも一部を前記負荷へ供給する手段と、
を備える装置。 - 前記電力を抽出する手段は、前記アレイの周囲に巻かれ、前記生成する手段に電磁的に結合されたコイルを備える、請求項17に記載の装置。
- 前記供給する手段は、前記負荷へ抽出された電力を供給するように構成されたコイルを備える、請求項17に記載の装置。
- 前記径方向対称形状は、ディスク状である、請求項17に記載の装置。
- 前記磁気機械振動子のアレイは三次元アレイである、請求項17に記載の装置。
- 前記磁気機械振動子のアレイの各磁気機械振動子は、回転楕円体の軸に伴って列をなして配向される、請求項17に記載の装置。
- 前記アレイにおける前記磁気機械振動子の各々は、サスペンションに取り付けられ、電磁場によって誘導されたトルクに応じて前記サスペンションの力に対して、また逆らって、運動するように構成される、請求項17に記載の装置。
- 前記サスペンションは、機械ばねを備える、請求項23に記載の装置。
- 前記サスペンションとして静磁場を利用することをさらに備える、請求項23に記載の装置。
- 複数の磁気機械振動子の各々は、回転可能に搭載されている、請求項17に記載の装置。
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US97938107P | 2007-10-11 | 2007-10-11 | |
US60/979,381 | 2007-10-11 |
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JP2013183454A Expired - Fee Related JP5694469B2 (ja) | 2007-10-11 | 2013-09-04 | 磁気機械システムを使用する無線電力転送 |
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US (1) | US8373514B2 (ja) |
EP (1) | EP2208279A4 (ja) |
JP (2) | JP5362733B2 (ja) |
KR (4) | KR101312215B1 (ja) |
CN (2) | CN101842963B (ja) |
WO (1) | WO2009049281A2 (ja) |
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KR101414404B1 (ko) | 2014-07-01 |
JP2011501636A (ja) | 2011-01-06 |
KR20130001333A (ko) | 2013-01-03 |
KR20100063823A (ko) | 2010-06-11 |
US20090167449A1 (en) | 2009-07-02 |
CN103904787B (zh) | 2017-06-06 |
KR101507265B1 (ko) | 2015-03-30 |
CN101842963B (zh) | 2014-05-28 |
EP2208279A4 (en) | 2016-11-30 |
EP2208279A2 (en) | 2010-07-21 |
WO2009049281A2 (en) | 2009-04-16 |
KR20140102778A (ko) | 2014-08-22 |
KR101606664B1 (ko) | 2016-03-25 |
JP5362733B2 (ja) | 2013-12-11 |
CN101842963A (zh) | 2010-09-22 |
KR101312215B1 (ko) | 2013-09-27 |
US8373514B2 (en) | 2013-02-12 |
JP2014018066A (ja) | 2014-01-30 |
WO2009049281A3 (en) | 2009-07-23 |
CN103904787A (zh) | 2014-07-02 |
KR20140010170A (ko) | 2014-01-23 |
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