一种弧形结构的水下无线充电系统输出功率自适应控制方法

By using an arc-shaped magnetic coupler and a hybrid SA and LM identification algorithm, the accuracy and speed issues of load and mutual inductance identification in underwater wireless charging systems are solved, enabling adaptive control of output power and enhancing the system's fault tolerance and anti-offset capability.

CN115864684BActive Publication Date: 2026-07-17NANJING INST OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING INST OF TECH
Filing Date
2022-11-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing underwater wireless charging systems in AUVs suffer from several problems, including the inability to achieve dual-parameter identification of load and mutual inductance, slow identification speed, high cost, low identification accuracy, and inability to achieve stable output power control.

Method used

By employing an arc-shaped magnetic coupler and combining the simulated annealing (SA) method with the Levenberg-Marquardt (LM) hybrid identification algorithm, the DC-DC converter's duty cycle is adjusted in real time by identifying the effective value of the inverter current, thereby achieving adaptive control of the output power.

Benefits of technology

It improves the fault tolerance and offset resistance of the underwater wireless charging system, and achieves fast and accurate mutual inductance and load identification, ensuring stable control of output power.

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Abstract

本发明公开了一种弧形结构的水下无线充电系统输出功率自适应控制方法,构建弧形结构磁耦合器;建立电路等效模型,计算逆变电流有效值;对无线充电系统的逆变电流进行采样,根据逆变电流采样值和逆变电流有效值的计算值,确定SA与L‑M混合识别算法的适应度函数;识别水下无线充电系统参数,分析水下无线充电系统输出功率与互感、负载以及DC‑DC变换器占空比之间的关系式,通过实时调节DC‑DC变换器的占空比,实现对需求输出功率的稳定控制。本发明能够实现输出功率的自适应控制,能够有效输出所需的负载功率。
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