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Method of operating an inductive power transfer system and an inductive power transfer system

  • US 10,300,803 B2
  • Filed: 10/08/2015
  • Issued: 05/28/2019
  • Est. Priority Date: 10/09/2014
  • Status: Active Grant
First Claim
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1. A method of operating an inductive power transfer system for transferring power, wherein the inductive power transfer system comprises a primary winding structure for generating an alternating electromagnetic field and a secondary winding structure for receiving the alternating electromagnetic field and generating an alternating current output voltage, wherein the alternating current output voltage is rectified and supplied to at least one energy storage element, wherein the rectified output voltage is adjusted by varying a gap size of a gap between the primary winding structure and the secondary winding structure,wherein the gap size is adjusted to prepare an energy transfer process or to initiate an energy transfer process or to control an energy transfer process depending on charging characteristics of the at least one energy storage element,wherein the gap size is adjusted such that a first rectified output voltage is provided, wherein the gap size is held constant as long as the first rectified output voltage is providable by adjusting an input voltage of a wayside power converter, wherein the input voltage of the wayside power converter is adjustable between given voltage limits.

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