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Inductively coupled wireless energy transfer system and its active disturbance rejection control method

A technology of wireless energy transmission and active disturbance rejection control, applied in the direction of electrical components, circuit devices, etc., can solve problems such as danger, load mutation, overshoot and damage to oscillating equipment, so as to make up for performance differences, suppress coil current changes, and realize The effect of current

Inactive Publication Date: 2018-08-10
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Claims
  • Application Information

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Problems solved by technology

In the application of implanted equipment, because the movement of people will cause the change of the relative distance between the transmitting and receiving coils to cause a sudden change in load, if there is no controller with stable dynamic performance to adjust the transmitting device in real time, the resulting overshoot and Problems such as vibration may damage the equipment or even cause danger

Method used

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  • Inductively coupled wireless energy transfer system and its active disturbance rejection control method
  • Inductively coupled wireless energy transfer system and its active disturbance rejection control method
  • Inductively coupled wireless energy transfer system and its active disturbance rejection control method

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Embodiment

[0041] An inductively coupled wireless energy transmission system, characterized in that it includes a rectification unit 2, a transmitter inverter unit 3, a transmitter inverter unit 4, a current detection unit 9, an active disturbance rejection control unit 11, and a receiver resonance unit 15 ;

[0042] The active disturbance rejection control unit 11 is composed of an extended state observer 12, a disturbance compensation unit 13, and a feedback control unit 14. The resonant current i at the transmitting end of the system is track 8 is converted into a corresponding detection voltage signal V by the current detection unit 9 track 10 is input to the ADR control unit 11, and the ADR control unit 11 controls the inverter unit 3 at the transmitting end by using an ADR control algorithm;

[0043] The AC power supply 1 is connected to the rectification unit 2, the rectification unit 2 outputs a stable DC voltage and is connected to the inverter unit 3 at the transmitting end,...

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Abstract

The invention discloses an inductive coupling type wireless energy transmission system and an active disturbance rejection control method thereof. The device comprises a rectification unit, an emission end inversion unit, an emission end resonant unit, a current detection unit, an active disturbance rejection control unit and a receiving end resonant unit, wherein a small signal model is built for the inductive coupling type wireless energy transmission device by means of a generalized state space averaging method and is used for describing an interior transient change process of the device, the active disturbance rejection control unit of the inductive coupling type wireless energy transmission system is designed according to an active disturbance rejection control principle on the basis of the small signal model, the active disturbance rejection control unit is used for effectively suppressing coil current change caused by disturbance due to reflection voltage, high-speed and stable control on emission end current of the device is further achieved, performance difference caused by device parameter change is effectively made up, the whole device system is enabled to be endowed with favorable dynamic process and high robustness, and communication between a receiving end and an emission end is not needed.

Description

technical field [0001] The invention relates to an inductively coupled wireless energy transmission system and an active disturbance rejection control method thereof, belonging to the technical field of wireless energy transmission. Background technique [0002] In order to perform reactive power compensation and enhance energy transmission efficiency, inductively coupled wireless energy transmission systems generally use the coupling between resonant networks composed of multiple energy storage elements for energy transmission, and the system will They exhibit different dynamical behaviors, so the inductively coupled wireless energy transfer system inevitably becomes a typical high-order nonlinear system, and its mathematical model can only be obtained through a certain degree of approximation. At the same time, the transmission characteristics of the inductively coupled wireless energy transmission system are closely related to various factors such as the load condition an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/12
Inventor 冬雷鞠兴龙王亚楠
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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