JP2015532084A - 誘導電力伝送システム - Google Patents
誘導電力伝送システム Download PDFInfo
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 31
- 239000003990 capacitor Substances 0.000 claims abstract description 79
- 230000008859 change Effects 0.000 claims abstract description 12
- 238000012546 transfer Methods 0.000 claims description 23
- 230000006698 induction Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910002601 GaN Inorganic materials 0.000 claims description 2
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 2
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- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
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- 229910000859 α-Fe Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- H02J7/025—
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- 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
- 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
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/217—Class D power amplifiers; Switching amplifiers
- H03F3/2176—Class E amplifiers
-
- 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
- H02M7/4815—Resonant converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Amplifiers (AREA)
- Near-Field Transmission Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Description
結合係数を最大化するには、ループ半径は最大化されるべきである。
ループ寸法に関する所与の制約に関しては、最適な周波数が存在し、概ね、表皮効果抵抗に比べて放射抵抗が有意になり始める点である。
ワイヤ半径及びコイル巻数は、可能な限り大きくすべきである(電界ひいては放射を制限するため、コイルは電気的に小さく維持すべき点に留意)。
ループのサイズが等しくない場合、最大動作周波数は主に、2つのコイルのうちの大きい方によって決まり、これが最低自己共振周波数にも影響する。
ここで、ωdは駆動された動作の角周波数、Lはコイルの自己インダクタンス、Rrad(ωd)は放射抵抗[30]、Nはコイルの巻数、ηoは自由空間のインピーダンス、rはコイルの半径、βo(ωd)=2π/λd、λdは駆動クロック周波数における自由空間波長、aは銅管の半径、σoは銅の低周波伝導率、μoは自由空間の透磁率である。RSkin(ωd)は、表皮効果抵抗の近似値であるが、近接効果も考慮に入れたButterworthの数値モデル[31]を用いたシミュレーションで算出したものである。
ここで、Tambは周囲温度、TssRXは受信機コイルのヒートシンク定常状態温度、RthRX(T)はRX負荷の集中熱抵抗である。温度測定結果は、すべての温度が定常状態に達するまで既知のDC電力をRX負荷に適用することによって校正した。そして、IPTシステムの試験時と同じ熱的な実験条件下での測定を行った。
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Claims (22)
- 送信機コイルと、
前記送信機コイルから離間された受信機コイルと、
前記送信機コイルを備える送信機回路と、
前記受信機コイルを備える受信機回路と
を備える誘導電力伝送システムであって、
前記送信機回路が、
電源の端子間における直列の第1のインダクタ及びトランジスタであって、前記トランジスタが第1の周波数でスイッチングするように構成された、第1のインダクタ及びトランジスタと、
前記第1のインダクタと電源端子との間における前記トランジスタと並列の第1の送信機キャパシタと、
前記第1の送信機キャパシタと並列の1次側タンク回路であって、前記送信機コイルと、前記送信機コイルと並列又は直列に配置された第2の送信機キャパシタとを備える、1次側タンク回路と、
前記第1の送信機キャパシタと前記1次側タンク回路との間における前記第1のインダクタと直列の第3の送信機キャパシタと
を備えるクラスE増幅器の形態である、誘導電力伝送システム。 - 前記第2の送信機キャパシタのキャパシタンスが、前記1次側タンク回路の共振周波数が前記第1の周波数よりも高くなるように選択される、請求項1に記載の誘導電力伝送システム。
- 前記第2の送信機キャパシタのキャパシタンスが、前記1次側タンク回路の共振周波数が前記第1の周波数よりも低くなるように選択される、請求項1に記載の誘導電力伝送システム。
- 前記1次側タンク回路の共振周波数に対する前記第1の周波数の比が、0.5〜1.5の範囲である、請求項2又は3に記載の誘導電力伝送システム。
- 前記1次側タンク回路の共振周波数に対する前記第1の周波数の比が、0.7〜0.9の範囲である、請求項2に記載の誘導電力伝送システム。
- 前記1次側タンク回路の所望の実効インピーダンスを実現するために、前記受信機回路が共振周波数を有し、前記送信機回路が前記第1の周波数を変更するように構成された、請求項1〜5のいずれか一項に記載の誘導電力伝送システム。
- 前記送信機コイル及び/又は前記受信機コイルが空心型である、請求項1〜6のいずれか一項に記載の誘導電力伝送システム。
- 前記送信機コイル及び/又は前記受信機コイルが、少なくとも5cm、好ましくは少なくとも10cmの直径を有する、請求項1〜7のいずれか一項に記載の誘導電力伝送システム。
- 前記送信機コイルと前記受信機コイルの間の使用時の間隔が、少なくとも15cmである、請求項1〜8のいずれか一項に記載の誘導電力伝送システム。
- 前記トランジスタが金属酸化物半導体電界効果トランジスタである、請求項1〜9のいずれか一項に記載の誘導電力伝送システム。
- 前記第1の周波数が、少なくとも80kHz、好ましくは少なくとも1MHzである、請求項1〜10のいずれか一項に記載の誘導電力伝送システム。
- 前記送信機コイルと前記受信機コイルとの間で伝送される電力が、少なくとも1ワット、好ましくは少なくとも10ワットである、請求項1〜11のいずれか一項に記載の誘導電力伝送システム。
- 前記受信機回路がクラスE整流器を備える、請求項1〜12のいずれか一項に記載の誘導電力伝送システム。
- 前記受信機回路が、使用時に負荷と並列に配置される第1の受信機キャパシタと、前記第1の受信機キャパシタと並列の2次側タンク回路とを備え、前記2次側タンク回路が、前記受信機コイルと、前記受信機コイルと並列に配置された第2の受信機キャパシタとを備え、前記2次側タンク回路と前記第1の受信機キャパシタの間に第1のダイオードが設けられた、請求項13に記載の誘導電力伝送システム。
- 前記第2の受信機キャパシタのキャパシタンスが、前記2次側タンク回路の共振周波数が前記第1の周波数と異なるように選択されることにより、前記2次側タンク回路が半共振状態で動作するとともにいくらかの反応性インピーダンスを維持する、請求項14に記載の誘導電力伝送システム。
- 前記第1の周波数の前記2次側タンク回路の共振周波数に対する比が、0.2〜3の範囲である、請求項15に記載の誘導電力伝送システム。
- 前記受信機回路の前記唯一のインダクタが前記受信機コイルである、請求項13〜16のいずれか一項に記載の誘導電力伝送システム。
- 前記受信機回路が、前記第1のダイオードと並列の少なくとも1つの第2のダイオードを備える、請求項14〜17のいずれか一項に記載の誘導電力伝送システム。
- 前記(1つ又は複数の)ダイオードと並列の前記唯一のキャパシタンスが、前記(1つ又は複数の)ダイオードの接合キャパシタンスによって与えられる、請求項13〜18のいずれか一項に記載の誘導電力伝送システム。
- 前記(1つ又は複数の)ダイオードが、炭化ケイ素ダイオード若しくは窒化ガリウムダイオードであるか、又は他の広バンドギャップ材料で形成される、請求項13〜19のいずれか一項に記載の誘導電力伝送システム。
- 請求項14〜20のいずれか一項に記載の誘導電力伝送システムの前記受信機回路。
- 請求項1〜21のいずれか一項に記載の誘導電力伝送システムの前記送信機回路。
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GB1309691.2A GB2505278B (en) | 2012-08-24 | 2013-05-30 | Inductive power transfer system |
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PCT/GB2013/051456 WO2014029961A1 (en) | 2012-08-24 | 2013-05-31 | Inductive power transfer system |
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EP (1) | EP2888801B1 (ja) |
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GB (2) | GB201215152D0 (ja) |
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JP2017118675A (ja) * | 2015-12-24 | 2017-06-29 | 日置電機株式会社 | 測定装置 |
KR102108919B1 (ko) * | 2018-12-10 | 2020-05-12 | 경희대학교 산학협력단 | 무선전력의 전송 효율을 개선하는 장치 및 그 방법 |
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WO2014029961A1 (en) | 2014-02-27 |
GB201309691D0 (en) | 2013-07-17 |
MX338521B (es) | 2016-04-19 |
KR101931275B1 (ko) | 2018-12-20 |
GB201215152D0 (en) | 2012-10-10 |
JP6390020B2 (ja) | 2018-09-19 |
CA2817288A1 (en) | 2014-02-24 |
SG11201501219RA (en) | 2015-03-30 |
GB2505278A (en) | 2014-02-26 |
EP2888801B1 (en) | 2020-06-17 |
CN105247761A (zh) | 2016-01-13 |
EP2888801A1 (en) | 2015-07-01 |
IN2015DN02341A (ja) | 2015-08-28 |
MX2013006253A (es) | 2014-09-03 |
GB2505278B (en) | 2016-12-21 |
KR20150048188A (ko) | 2015-05-06 |
US9899877B2 (en) | 2018-02-20 |
US20150207334A1 (en) | 2015-07-23 |
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