Induction electric power transmission control device and method

A technology of inductive power transmission and control devices, which is applied in the direction of circuit devices, electrical components, electromagnetic wave systems, etc., can solve problems such as system detuning, unstable power transmission, etc., and achieve stable current, stable energy transmission, and stable energy transmission.

Active Publication Date: 2015-06-17
HUNAN UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of this application is to provide an LCL type inductive power transmission control device and its method to solve the problems of system detuning and unstable power transmission caused by dynamic load changes

Method used

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  • Induction electric power transmission control device and method
  • Induction electric power transmission control device and method
  • Induction electric power transmission control device and method

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Embodiment Construction

[0037] 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.

[0038] Such as figure 1 As shown, it is the schematic diagram of the LCL type IPT system. The system includes primary and secondary parts. The primary and secondary parts are separated by an air gap. The primary and secondary parts are coupled by a high-frequency magnetic field to complete energy transmission.

[0039] The primary part is powered by a DC voltage source U dc (1), a high-frequency inverter circuit (15) and a primary resonant circuit (16).

[0040] The high-frequency inverter circuit (15) is composed of four fully-controlled switching tubes and anti-parallel diode one (2), anti-para...

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Abstract

The invention provides an LCL type induction electric power transmission control device. The LCL type induction electric power transmission control device comprises a primary grade part and a secondary grade part, and is characterized in that the primary grade part is provided with two closed loops, namely a frequency converting control loop and a phase-shifting control loop; the frequency converting control loop adopts a frequency tracking method to control the frequency of a high-frequency inverter circuit door control signal; and the phase-shifting control loop adopts a phase-shifting control policy of an intelligent subdivision control algorithm to control a phase-shifting angle of the high-frequency inverter circuit door control signal. The LCL type induction electric power transmission control device is only used for controlling at the primary grade, and a conventional information feedback channel does not need to be used between the primary grade and the secondary grade.

Description

technical field [0001] The invention relates to the field of inductive power transmission, in particular to an inductive power transmission control device for an LCL type IPT system, and also relates to an LCL type inductive power transmission control method. Background technique [0002] Inductive power transfer (IPT) is a non-contact power transfer technology based on the principle of electromagnetic induction. It has the advantages of safety and reliability. Application prospects. [0003] The LCL type IPT system consists of a DC power supply, a high-frequency inverter circuit, a primary resonance circuit, a secondary resonance circuit, an uncontrollable rectifier bridge, a filter link, and a load. By using resonance compensation technology to control the operating frequency of the system to the primary resonance frequency, it can improve System transmission performance, but also can reduce costs. However, the dynamic change of the load during the energy transmission pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J17/00H02M3/28H02J50/12
CPCH02M3/28
Inventor 袁小芳向永忠王辉
Owner HUNAN UNIV
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