POWER SUPPLY EQUIPMENT FOR AC ELECTRIC VEHICLE - MEIDENSHA ELECTRIC MFG CO LTD

Title:

POWER SUPPLY EQUIPMENT FOR AC ELECTRIC VEHICLE

Document Type and Number:

WIPO Patent Application WO/2015/198756

Kind Code:

A1

Abstract:

The present invention sets the tap position of a first tap switching transformer (2) as a large output position and sets the tap position of a second tap switching transformer (3) as a small output position until all pantographs of an electric vehicle pass through an inlet-side air section (D1). After all of the pantographs of the electric vehicle pass through the inlet-side air section (D1) and until the front pantograph of the electric vehicle passes through an outlet-side air section (D2), the tap position of the second tap switching transformer (3) is gradually switched in an output increasing direction while the tap position of the first tap switching transformer (2) is switched in an output decreasing direction, the tap position of the first tap switching transformer (2) is set as the small output position, and the tap position of the second tap switching transformer (3) is set as the large output position. Thus, power supply phase-switching is performed without causing a momentary power failure in a central section of power supply equipment of an AC electric vehicle.

Inventors:

WATANABE HIDEO (JP)
OGAWA YOSHIHARU (JP)

Application Number:

PCT/JP2015/064416

Publication Date:

December 30, 2015

Filing Date:

May 20, 2015

Export Citation:

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Assignee:

MEIDENSHA ELECTRIC MFG CO LTD (JP)

International Classes:

B60M3/00; B60M3/04

Foreign References:

JPH08230523A	1996-09-10
JP2007001560A	2007-01-11
JP2003291694A	2003-10-15
JP2010221888A	2010-10-07

Other References: