WO2008002164A1 - Procédé et système pour le transfert sans fil de puissance électrique - Google Patents

Procédé et système pour le transfert sans fil de puissance électrique Download PDF

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Publication number
WO2008002164A1
WO2008002164A1 PCT/PL2007/000043 PL2007000043W WO2008002164A1 WO 2008002164 A1 WO2008002164 A1 WO 2008002164A1 PL 2007000043 W PL2007000043 W PL 2007000043W WO 2008002164 A1 WO2008002164 A1 WO 2008002164A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmitter
matrix
induction
columns
power
Prior art date
Application number
PCT/PL2007/000043
Other languages
English (en)
Inventor
Piotr Musial
Original Assignee
Piotr Musial
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Piotr Musial filed Critical Piotr Musial
Publication of WO2008002164A1 publication Critical patent/WO2008002164A1/fr

Links

Classifications

    • 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
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • H02J50/402—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
    • 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
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • 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

Definitions

  • the gist of the invention is a method of wireless transfer of electrical power and a system realising such transfer.
  • the prime application of the solution is to supply power to laptops in conference or lecturing halls, etc. without any of the limitations affecting the time and volume of the energy consumed, which are experienced when power supply is provided from power cells.
  • the solution can also be used to supply power to various kinds of other portable equipment which require to be fed power, and to charge cells and/or batteries.
  • the method of wireless transfer of electrical power consisting in inducing the inductive elements in the transmitter with an electrical signal so as to produce a magnetic field which, in the inductive element of the receiver, coupled with it, generates electrical energy
  • a matrix is formed made up of identical induction cells mutually connected in rows and columns, the location of the inductive elements of the receivers, placed on the transmitter is detected, and the induction cells of the transmitter underneath are stimulated by applying electrical excitation to the appropriate columns and rows in the matrix.
  • the excitation of the selected induction cells is effected by switching the respective columns and rows in the matrix to one of the four states: "disconnected”, “common”, “stimulus +”, and "stimulus -".
  • the respective induction cells in the transmitter are stimulated one after another at intervals.
  • positions of the receivers on the transmitter are detected using the same induction cell matrix by initial simultaneous stimulation of all or selected induction cells with a low power impulse.
  • the system for wireless transfer of electrical power composed of a transmitter and inductively coupled receiver, where the transmitter contains many induction cells, a source of power, and control elements is, as claimed in the invention, characterised by the fact that the induction cells in the transmitter are mutually interconnected creating a matrix whose rows and columns are connected via switch keys to the source of power and a control-and-driving block.
  • the control-and-driving block is also connected to the induction cell selection block.
  • the rows and columns of the matrix are connected to the common source of power and a common control-and-driving block.
  • the rows of the induction cell matrix are connected to one voltage pole through the switch keys controlled from the control-and-driving block via a demultiplexer of the rows.
  • the columns of the induction cell matrix are connected to the other voltage pole through the switch keys controlled from the control-and-driving block via the column demultiplexer and a programmable generator.
  • an induction cell of the transmitter is composed of coils in parallel connection and a condenser forming the resonating circuit, and the there connected semi- conductive blocking element.
  • the blocking element in the induction cell which contains a resonating circuit takes the form of a diode.
  • a signal measuring block is interposed between the matrix columns and the control-and-driving block.
  • Power transistors serve as the keys switching the columns and rows in the matrix.
  • control-and-driving block is realised in the form of a programmed microprocessor control.
  • the solution ensures that the effectiveness of electrical power transfer is made independent of the receiver's position on the surface of the transmitter. It also enables minimising the dimensions of the energy receiver while retaining maximum achievable efficiency, as its size is similar to that of a single cell in the transmitter.
  • the number of the components and connections in the transmitter is reduced, since all the inductive elements can make use of a common power source and control system.
  • Fig. 1 presents, in a schematic way, the general concept of the solution
  • Fig. 2 presents the structure of the inductive element matrix and their switching
  • Fig. 3 presents the block diagram of the transmitter system.
  • the method of wireless transfer of the electric power makes use of the phenomenon of electromagnetic induction, and its general idea consists in transferring electrical energy from transmitter N to receiver O via a magnetic stream SM.
  • the transmitter N which is the source of power, is built so that its whole surface available for use is covered with induction cells CI, which, in the simplest version, can be single inductive coils.
  • the induction cell can also be made of more complex circuits, e.g. of the resonance type.
  • the cells are arranged in columns A, B, C, D, and rows 1, 2, 3, 4, and connected together so that they create a regular matrix. Each column and row of the matrix can be switched into one of the four states: "disconnected", “common”, “stimulus +", and "stimulus -" with controlled switches P.
  • induction is caused of the induction cell CI lying at their crossing.
  • additional switches DP one can realise any desirable combination of the connections between the columns and rows in the matrix and the source of power, hence stimulate any selected induction cells CI at the same time or consecutively.
  • the receiver O also equipped with an induction element EI, is placed on the surface of the transmitter N, its position is detected through initial simultaneous stimulation of all induction cells CI in the matrix of the transmitter N with a low power impulse. This is done by switching all columns and rows into the "common” position and at the same time connecting the common rail to the "stimulus +" for columns and "stimulus -" for rows using the additional switches DP.
  • the initial stimulation produces minor energy, which is sufficient to start the receiver O and initiate communication with the transmitter N.
  • the position of the receiver can also be detected in any other way, e.g. using a separate circuit. Having detected the position of the receiver O and selected the induction cell CI in the transmitter N, coupled with an inductive element EI of the receiver O, i.e. the one lying underneath, the rows and columns in the matrix are switched so that the electrical stimulation is tied to the row and column at the crossing of which the appropriate induction cell CI is located. If more than one receiver is detected, the relevant induction cells are stimulated one after another at time intervals.
  • the maximum number of the receivers is limited by the minimum power that needs to be supplied to them. If, for example, on the matrix shown on Fig.2 and composed of 16 induction cells CI arranged in four rows 1, 2, 3, and 4, and four columns A, B 5 C, and D, two receivers are detected placed over the induction cells located at the 2B and 4C crossings, first the induction cell 2B, then the induction cell 4C, is stimulated for some time, whereupon the cycles is repeated. In the event that the selected induction cells CI to be stimulated are located in the same column or row, they can be stimulated simultaneously, e.g.
  • induction cells 2 A and 2C by parallel switching of row 2 to the state of "stimulus +" and columns A and C to the state “common” while simultaneous switching the additional DP switch to the "stimulus — " state.
  • the control of all switches, i.e. stimulation of the appropriate induction cells, is performed automatically via a programmed microprocessor circuit.
  • the system for wireless transfer of electrical power is composed of the transmitter N and the inductively coupled receiver O.
  • the system of transmitter N is composed of a set of identical induction cells CI, the corresponding number of switch keys P, two demultiplexers DR, DK, a programmable generator G, an induction cell selection block W, a signal measuring block S, a control-and- driving block K, and a power feeder Z.
  • a single induction cell CI is made up of a coil L and a condenser C, connected parallel and forming a resonating circuit together with the semiconductor blocking element D in the form of a diode connected to it.
  • AU induction cells CI are connected with one another in rows and columns so that they form a matrix.
  • Each row of the induction cells CI in the matrix is connected via a switch key P to the high voltage pole of the power fed and to the row demultiplexer DR controlled from the control-and-driving block K.
  • Each column of the matrix is connected via the switch key P with the ground and the column demultiplexer DK controlled from the control- and-driving block K and the programmable generator G.
  • a signal measuring block S is interposed in the back coupling loop.
  • the block is composed of an analogue multiplexer MA, high-pass filter F, rectifier PR, and an analogue-digital transducer AC.
  • MOSFET power transistors are used as the switch keys P. These are controlled from the programmed microprocessor control unit which constitutes the control-and- driving block K 5 via the transistor bridge control circuits, e.g. L6386, which adjust the logical signals to the levels acceptable by the microprocessor.
  • the transistor bridge control circuits e.g. L6386
  • CMOS4014 are used and an AD9832 circuit is used as the programmable generator.
  • the resonance frequency of the induction cell CI is 100 kHz
  • the inducing signal is 200 V
  • the power processed by the receiver is 10OW.
  • the receiver O Once the receiver O is placed on the surface of the transmitter N, its position is detected in any way by the induction cell selection block W, and identified is the column and row at the crossing of which lies the induction cell CI of the matrix under the inductive element EI of the receiver, which should be induced.
  • the selected induction cell CI is stimulated by opening of the switch key P of the identified row, and the cyclicaj opening and closing, i.e. shorting to the ground, of the switch key P relevant for the identified column.
  • the signal of the appropriate frequency equal to the resonance frequency of the induction cell is digitally generated in the programmable generator G controlled by the microprocessor control K. The frequency can be adjusted to the changing load and altered to compensate for any lack of precision in the mounting.
  • the exact value of the resonance frequency for each induction cell CI is determined through measurement in the process of producing and storing in the memory of the microprocessor control K.
  • the microprocessor control K activates the appropriate keys of the row and column through transmitting the relevant addresses to the demultiplexer of the row DR and the demultiplexer of the column DK.
  • the diode D blocks the flow of the current from the stimulated induction cell to the other induction cells preventing their undesirable self-excitation.
  • the quality of the stimulation is controlled in the signal measuring block S by gauging the signal amplitude on the transistor drain which serves as the switch key P of the selected column.
  • the signal generated by the stimulated element of the matrix is filtered, rectified, and measured with an analogue-digital transducer, where it is read by the microprocessor control K and used in the algorithm controlling the induction cell.

Abstract

L'invention concerne un procédé de transfert sans fil de puissance électrique, consistant à induire un signal électrique dans les éléments inductifs de l'émetteur afin de produire un champ magnétique, qui génère une énergie électrique dans l'élément inductif du récepteur couplé avec celui-ci. Dans l'émetteur (N), une matrice est formée, faite à partir de cellules d'induction identiques (CI) connectées mutuellement en lignes et colonnes, où la position des éléments inductifs (EI) des récepteurs (O) placés sur l'émetteur (N) est détectée, et où les cellules d'induction (CI) de l'émetteur reposant en dessous sont stimulées par excitation électrique des colonnes et lignes appropriées dans la matrice. L'invention concerne un système pour un transfert sans fil de puissance électrique comprenant un émetteur et un récepteur couplé de manière inductive à celui-ci, où l'émetteur est fait à partir de beaucoup de cellules d'induction, d'une source de puissance, et d'éléments de commande. Les cellules d'induction (CI) dans l'émetteur (N) sont interconnectées, formant une matrice dont les lignes et les colonnes sont connectées par l'intermédiaire de clés de commutation (P) à la source de puissance et au bloc de contrôle et de commande (K), qui est connecté au bloc de sélection des cellules d'induction (W).
PCT/PL2007/000043 2006-06-28 2007-06-25 Procédé et système pour le transfert sans fil de puissance électrique WO2008002164A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL3805606 2006-06-28
PLP38056 2006-06-28

Publications (1)

Publication Number Publication Date
WO2008002164A1 true WO2008002164A1 (fr) 2008-01-03

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PCT/PL2007/000043 WO2008002164A1 (fr) 2006-06-28 2007-06-25 Procédé et système pour le transfert sans fil de puissance électrique

Country Status (1)

Country Link
WO (1) WO2008002164A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2211438A1 (fr) * 2009-01-27 2010-07-28 Panasonic Electric Works Co., Ltd. Système de transmission d'alimentation sans contact
US20170077737A1 (en) * 2015-09-15 2017-03-16 Amicord Corp. Core Contactless LLC Charger and Controlling Method Thereof
US9953763B2 (en) 2012-03-28 2018-04-24 Fujitsu Limited Wireless power transmission system and wireless power transmission method
CN108199436A (zh) * 2018-01-15 2018-06-22 杭州电子科技大学 无线充电系统
EP4088367A4 (fr) * 2020-01-06 2024-03-20 Aira Inc Bobines oscillantes dans des chargeurs sans fil à bobines multiples

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6008622A (en) * 1997-09-29 1999-12-28 Nec Moli Energy Corp. Non-contact battery charging equipment using a soft magnetic plate
US20030094855A1 (en) * 2000-04-18 2003-05-22 Georg Lohr Array for the contact-less transmission of electrical signals or energy
US20030210106A1 (en) * 2002-05-13 2003-11-13 Splashpower Limited, A Company Incorporated In The Uk Contact-less power transfer
GB2398176A (en) * 2002-05-13 2004-08-11 Zap Wireless Technologies Ltd Electrical power transfer using inductive coupling
US6803744B1 (en) * 1999-11-01 2004-10-12 Anthony Sabo Alignment independent and self aligning inductive power transfer system
US20050189910A1 (en) * 2002-06-10 2005-09-01 Hui Shu-Yuen R. Planar inductive battery charger
US20060202665A1 (en) * 2005-03-10 2006-09-14 Microsoft Corporation Inductive powering surface for powering portable devices

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6008622A (en) * 1997-09-29 1999-12-28 Nec Moli Energy Corp. Non-contact battery charging equipment using a soft magnetic plate
US6803744B1 (en) * 1999-11-01 2004-10-12 Anthony Sabo Alignment independent and self aligning inductive power transfer system
US20030094855A1 (en) * 2000-04-18 2003-05-22 Georg Lohr Array for the contact-less transmission of electrical signals or energy
US20030210106A1 (en) * 2002-05-13 2003-11-13 Splashpower Limited, A Company Incorporated In The Uk Contact-less power transfer
GB2398176A (en) * 2002-05-13 2004-08-11 Zap Wireless Technologies Ltd Electrical power transfer using inductive coupling
US20050189910A1 (en) * 2002-06-10 2005-09-01 Hui Shu-Yuen R. Planar inductive battery charger
US20060202665A1 (en) * 2005-03-10 2006-09-14 Microsoft Corporation Inductive powering surface for powering portable devices

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HATANAKA K ET AL: "COIL SHAPE IN A DESK-TYPE CONTACTLESS POWER STATION SYSTEM", 24 January 2001, NIHON OYO JIKI GAKKAISHI - JOURNAL OF THE MAGNETIC SOCIETY OF JAPAN, TOKYO, JP, PAGE(S) 1015-1018, ISSN: 0285-0192, XP001179722 *
HATANAKA K ET AL: "EXCITED COMPOSITION OF PRIMARY SIDE IN A POSITION-FREE CONTACTLESS POWER STATION SYSTEM", NIHON OYO JIKI GAKKAISHI - JOURNAL OF THE MAGNETIC SOCIETY OF JAPAN, TOKYO, JP, vol. 26, no. 4, 17 January 2002 (2002-01-17), pages 580 - 584, XP009026806, ISSN: 0285-0192 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2211438A1 (fr) * 2009-01-27 2010-07-28 Panasonic Electric Works Co., Ltd. Système de transmission d'alimentation sans contact
US8258653B2 (en) 2009-01-27 2012-09-04 Panasonic Corporation Contactless power transmission system
US9953763B2 (en) 2012-03-28 2018-04-24 Fujitsu Limited Wireless power transmission system and wireless power transmission method
US20170077737A1 (en) * 2015-09-15 2017-03-16 Amicord Corp. Core Contactless LLC Charger and Controlling Method Thereof
US10050464B2 (en) * 2015-09-15 2018-08-14 Amicord Corp. Core contactless LLC charger and controlling method thereof
CN108199436A (zh) * 2018-01-15 2018-06-22 杭州电子科技大学 无线充电系统
EP4088367A4 (fr) * 2020-01-06 2024-03-20 Aira Inc Bobines oscillantes dans des chargeurs sans fil à bobines multiples

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