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Contactless inductive power transmission control device and method thereof

A technology of non-contact induction and power transmission, which is applied in the direction of circuit devices, electrical components, electromagnetic wave systems, etc., and can solve problems such as unstable power transmission

Active Publication Date: 2015-05-13
HUNAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this application is to provide a comprehensive control device and method for simultaneously controlling the primary side resonant current and secondary side output voltage in the non-contact inductive power transmission system, so as to solve the problem of unstable power transmission caused by dynamic load changes

Method used

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  • Contactless inductive power transmission control device and method thereof
  • Contactless inductive power transmission control device and method thereof

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Embodiment Construction

[0050] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0051] like figure 1 Shown is the control schematic diagram of the SP (primary side, secondary side controller) type ICPT system. A non-contact inductive power transmission control device includes primary side capacitors in series and secondary side capacitors in parallel, and is coupled by a high frequency magnetic field to complete transfer of energy. The primary part is powered by a DC voltage source U dc (1) Composed of high-frequency inverter link and primary side resonant network. Among them, the high-frequency inverter link is composed of four fully-controlled switching tubes and their an...

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Abstract

A contactless inductive power transmission control device comprises a primary side portion and an auxiliary side portion and is characterized in that the primary side portion adopts capacitor series connection, the auxiliary side portion adopts capacitor parallel connection, two closed loop circuits are arranged on two sides of the primary side and the auxiliary side, an independent controller is designed in a closed loop, and meanwhile the primary side resonant current and the auxiliary side output voltage are controlled. The device and the method have the advantage that the primary side resonant current and the auxiliary side output voltage of an ICTP system can be controlled simultaneously and dynamically, and stable transmission of power under load disturbance of the system is ensured. The primary side control circuit and the auxiliary side control circuit are designed independently, and no signal communication is required to be conducted between the primary side and the auxiliary side.

Description

technical field [0001] The invention relates to the field of non-contact inductive power transmission, specifically a non-contact inductive power transmission control device for an ICPT system, and also relates to a non-contact inductive power transmission control method. Background technique [0002] Non-contact inductive power transfer (Inductively coupled power transfer, ICPT) is a new type of power transfer technology based on the principle of electromagnetic induction. This technology gets rid of the traditional electrical contact method, and overcomes the disadvantages of the traditional electrical contact power supply method in harsh environments such as high temperature, high humidity, and high corrosion. [0003] The non-contact inductive power transmission technology has strict requirements on the relative position of the transmission equipment, especially in the application of electric vehicle charging, if the relative position changes when the electric vehicle is...

Claims

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Application Information

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IPC IPC(8): H02J17/00H02J5/00H02J50/12
CPCH02J5/005
Inventor 袁小芳向永忠
Owner HUNAN UNIV
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