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Wireless Power Transfer – multiple sources control management. 100/ AGS501. 2012-10-22 H . Sakakihara. Background. Multimedia products with wireless power transfer, specially electromagnetic induction technology, are spreading in the market. Electromagnetic induction

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wireless power transfer multiple sources control management
Wireless Power Transfer – multiple sources control management

100/AGS501

2012-10-22

H. Sakakihara

slide2

Background

  • Multimedia products with wireless power transfer, specially electromagnetic induction technology, are spreading in the market.
  • Electromagnetic induction
    • Remove difficulty of connecting power line cable
    • Request that a power source and a receiver should be put at a short distance in the appropriate position
  • Magnetic resonance
    • Give a spatial effect on power transfer
    • Deliver power from multiple power sources to multiple receivers at a distance in a spatial space.
slide3

Spatial Wireless Power Transfer System

Power source

Power source

Power source

Power source

Concept image-2

Concept image-1

  • Multiple power sources configure a power transfer area.
  • When a receiving device enters the power transfer area, its device will be charged automatically.
slide4

Technical issues

  • Methods of formation of groups on power transfer areas including multiple power sources
    • Which power source is responsible for power transfer to each receiving device?
  • Controlling power transfer conditions among multiple power sources to achieve efficient power transfer to multiple receivers
    • How can power sources set up the output conditioning on position and posture of receiving devices?

Group-1

Group-N

......

Power source

......

Receiving device

slide5

New work item proposal

  • Title : Wireless Power Transfer – multiple sources control management
  • Scope:
    • This International Standard specifies methods of formation of multiple groups on a spatial wireless power transfer system. A group on spatial wireless power transfer system, which is responsible for power transfer to receiving devices, has multiple power sources.
    • This International Standard also specifies within a group methods of setting, sharing and controlling power transfer conditions among multiple power sources in order to achieve efficient power transfer to multiple receiving devices.
  • NP submission: October, 2012
slide6

System structure

z

SWPTS-S

Slave

Master

SWPTS: Spatial Wireless Power Transfer System

SWPTS-S: SWPTS-Source

Slave

Master

Slave

y

SWPTS-2

Communication area

: Device

SWPTS-1

Power transfer area

Device-1

x

  • (1) Multiple sources configure power transfer area of each SWPTS
  • (2) To deliver power to devices within intersection of power transfer areas,
  • synchronizing of magnetic field
  • arrangement on synchronizing of magnetic field based on position and posture of devices
  • (3) Setting a SWPTS-S as Master (autonomous or user’s assignment)
  • Master’s optimizing power magnetic field (calculation of matching conditionsand magnetic field strength on SWPTS-Ss)
  • Optimization on magnetic field to efficiently deliver power to all devices within SWPTS
slide7

Table of Contents

  • Scope
  • Normative References
  • Terms, definitions and abbreviations
  • Basic Overview
  • Requirements on SWPTS
  • Control and management method on SWPTS
    • 6.1 Formation of SWPTS-Ss Group
    • 6.2 Preparation of Wireless power transfer for multiple SWPTS-Ds
    • 6.3 Wireless power transfer mode
    • 6.4 Reconfiguration of SWPTS
slide8

Schedule on proposed NP

△10/22

TC100 AGS in Berlin

▲2012/10/13

NP submission

△ 2013/1

Closing voting on NP

△2013/10

CDV

△ 2014/08

IS

slide9

Thank you for your attention.

sakakihara.hiro@jp.fujitsu.com