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Subsection power supply shifting device for movable non-contact power supply system

A technology of segmented power supply and switching device, which is applied in the direction of output power conversion device, circuit device, electromagnetic wave system, etc., can solve problems such as effective switching problem, and achieve the effect of low loss

Active Publication Date: 2014-05-07
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of effective switching of each segment in the segmental power supply of the existing mobile contactless power supply system, and propose a segmental power supply switching device for the mobile contactless power supply system

Method used

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  • Subsection power supply shifting device for movable non-contact power supply system
  • Subsection power supply shifting device for movable non-contact power supply system

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] figure 1 Shown is a schematic diagram of a segmented power supply switching device for a mobile contactless power supply system, and its basic composition is as follows.

[0027] The two output terminals of the inverter 1 are respectively connected to the input terminals of K switches 2-1, 2-2, . . . , 2-K, where K is a positive integer. The K switches are respectively connected to the K primary winding coils via resonant capacitors. For the series connection mode of the resonant capacitor and the primary winding coil, the switching switch 2-1 is taken as an example for illustration, and the series connection mode of other resonant capacitors and the primary winding coil is the same. One output terminal of the switch 2-1 is correspondingly connected to an input terminal of the primary winding coil 4-1 through the resonant capacitor 3-1...

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Abstract

The invention discloses a subsection power supply shifting device for a movable non-contact power supply system. The system comprises a ground inverter, selector switches, a resonance capacitor, primary winding coils, a position detection device, a secondary winding coil and a vehicle-mounted converter. The subsection power supply shifting device is characterized in that one inverter can supply power to the K primary winding coils through the K selector switches, wherein K is a positive integer, high-frequency power components are adopted in the selector switches, the selector switches are arranged on the outlet of the inverter, and the withstand voltage requirement for the selector switches is low. Before the selector switches are turned on or off, at first, the output current of the inverter should be zero, and therefore connection and disconnection of the zero current of the selector switches are achieved, and soft switching is achieved.

Description

technical field [0001] The invention relates to a subsection power supply device of a contactless power supply system. Background technique [0002] Contactless power supply, also known as non-contact power transmission, refers to the transmission of power from one side (power supply side) to the other side (load side) based on the principle of electromagnetic induction without direct electrical contact. Mobile contactless power supply refers to a special contactless power supply method that can transmit electric energy even if there is relative movement between the two sides, that is, the power supply side and the load side. [0003] Compared with the traditional power supply, the advantages of the mobile contactless power supply system are: (1) There is no direct contact between the power supply system and the load, there is no exposed live conductor, and there is no risk of electric shock; (2) No friction, no contact sparks ; (3) No carbon dust caused by friction, easy m...

Claims

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Application Information

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IPC IPC(8): H02M1/36H02J17/00H02J50/12
Inventor 史黎明蔡华张瑞华赵雅洁李耀华
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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