Tuning control of inductive power transfer system based on coil positioning and capacitor array

被引：0
作者：
Chen J. [1 ]
Chen Q. [1 ]
Zhang B. [1 ]
机构：
[1] College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2023年 / 43卷 / 02期
基金：
中国国家自然科学基金;
关键词：
capacitor array; coil positioning; inductive power transfer; output voltage fluctuation; S／SP compensation network;
D O I：
10.16081/j.epae.202207029
中图分类号：
学科分类号：
摘要：
In practical applications，complex working condition of coil misalignment existed in inductive power transfer system will affect the transmission power and efficiency. Based on coil positioning and capacitor array，a tuning control strategy for series／series-parallel（S／SP） compensation network is proposed，which can improve the system characteristics under coil misalignment and detuning conditions by actively utilizing the position information of the primary and secondary coils. In order to quantify the output voltage fluctuation of the system，a calculation model of the voltage gain curve of S／SP compensation network under all operating conditions is established. Furthermore，in order to ensure the constant voltage output characteristics of the system under the coil misalignment condition，the optimal design of the switching levels of the capacitor array and the adjustment step size of capacitor value is given within the determined coupling coefficient range and output voltage fluctuation range，and compared with the traditional S／SP compensation method. Finally，the effectiveness of the proposed tuning control method is verified by using an 800 W output prototype. The experimental results show that the proposed tuning control strategy can remarkably improve the output power and efficiency，meanwhile the output voltage fluctuation can be decreased significantly. © 2023 Electric Power Automation Equipment Press. All rights reserved.
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收藏
页码：184 / 190
页数：6
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