Inductive coupling type wireless energy transmission system and active disturbance rejection control method thereof

A wireless energy transmission and active disturbance rejection control technology, applied in electrical components, circuit devices, etc., can solve problems such as overshoot and oscillating equipment damage, load sudden change, and danger, and achieve the effect of suppressing changes in current and coil current.

Inactive Publication Date: 2016-06-29
BEIJING INSTITUTE OF TECHNOLOGYGY
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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

Method used

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  • Inductive coupling type wireless energy transmission system and active disturbance rejection control method thereof
  • Inductive coupling type wireless energy transmission system and active disturbance rejection control method thereof
  • Inductive coupling type wireless energy transmission system and active disturbance rejection control method thereof

Examples

Experimental program
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Embodiment

[0046] An inductively coupled wireless energy transmission device, characterized in that it includes a rectification unit, a transmitter inverter unit, a transmitter resonance unit, a current detection unit, an active disturbance rejection control unit, and a receiver resonance unit;

[0047] The active disturbance rejection control unit consists of an extended state observer, a disturbance compensation unit, and a feedback control unit. The resonant current at the transmitting end of the device After the current detection unit is converted into the corresponding detection voltage signal The input is sent to the ADRC control unit, and the ADRC control unit uses the ADRC control algorithm to control the inverter unit at the transmitting end;

[0048] The AC power supply is connected to the rectifier unit, the rectifier unit outputs a stable DC voltage and is connected to the inverter unit at the transmitting end, the inverter unit at the transmitting end is connected to the r...

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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 device 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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IPC IPC(8): H02J50/12
Inventor 冬雷鞠兴龙王亚楠
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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