Contactless power feeding facility
AssigneeDaifuku Co., Ltd.
InventorMakoto Nunoya
Life of this patent
Estimating the term…
Abstract
A contactless power feeding facility includes a coupling unit electromagnetically coupling a target feeder line and an adjacent feeder line. A target power supply apparatus includes: a phase detector detecting the induced current phase which is the phase of an induced current flowing through the target feeder line by the electromagnetic induction via the coupling unit while an alternating current is supplied to the adjacent feeder line by an adjacent power supply apparatus; an alternating-current generator generating the alternating current to be supplied to the target feeder line; and a phase controller controlling the alternating-current generator such that the phase of the alternating current to be supplied to the target feeder approaches the induced current phase detected by the phase detector.
Claims5
A contactless power feeding facility, comprising:
- a plurality of feeder lines arranged along a moving route of a movable body comprising a power receiver;
- and
- power supply apparatuses connected to the plurality of respective feeder lines to supply an alternating current to the connected feeder lines,
- wherein the contactless power feeding facility is configured to supply power to the power receiver in a contactless manner,
- with one of the plurality of feeder lines as a target feeder line,
- with a power supply apparatus connected to the target feeder line as a target power supply apparatus,
- with a feeder line adjacent to the target feeder line along the moving route as an adjacent feeder line, and
- with a power supply apparatus connected to the adjacent feeder line as an adjacent power supply apparatus,
- the contactless power feeding facility further comprising:
- a coupling unit configured to electromagnetically couple the target feeder line and the adjacent feeder line, and
- wherein:
- the target power supply apparatus comprises:
- a phase detector configured to detect an induced current phase, which is a phase of an induced current flowing through the target feeder line by electromagnetic induction via the coupling unit while an alternating current is supplied to the adjacent feeder line by the adjacent power supply apparatus;
- an alternating-current generator configured to generate an alternating current to be supplied to the target feeder line;
- and
- a phase controller configured to control the alternating-current generator such that a phase of the alternating current to be supplied to the target feeder line approaches the induced current phase detected by the phase detector.
Dependencies are inferred from the claim text.