基于P&O的恒流变脉冲充电方案研究
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重庆理工大学电气与电子工程学院 重庆 400054

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TK02

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重庆市科学技术局项目(cstc2019jcyj-msxmX0233,cstc2017shmsA40019)、重庆市教育委员会项目(KJQN201901125)、重庆市教委科学技术研究项目(KJQN201901103)、巴南区科学技术局项目(2019TJ07)资助


Research on constant rheological pulse charging scheme based on P&O
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School of Electrical and Electronic Engineering, Chongqing University of Technology, Chongqing 400054, China

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    摘要:

    针对无人机电池充电极化反应导致的耐用性问题,同时为了提高激光无线传能系统对无人机电池的充电速率,提出了一种P&O的恒流变脉冲充电方案。该方案首先使用P&O实现了对GaAs薄膜光电池最大功率点的跟踪,能够快速精准的追踪到最大功率点的电流电压,确保无人机在进行能量传输时的供能稳定性;之后结合P&O以及无人机锂电池的输出特性建立了基于P&O的恒流变脉冲充电方案,实现了对无人机锂电池极化反应的改善,从而提升无人机锂电池的耐用性和整体的充电速率。仿真结果表明,基于P&O的恒流变脉冲充电方案不仅可以提高无人机锂电池的耐用性,而且较常规的恒流、恒流恒压充电方法能够减少289 s的充电时间,充电效率提升9.45%。

    Abstract:

    Aiming at the durability problem caused by the polarization reaction of UAV battery charging, and in order to improve the charging rate of UAV battery by the laser wireless energy transmission system, a P&O constant current pulse charging scheme was proposed. This scheme first uses P&O to track the maximum power point of GaAs thin film photocells, which can quickly and accurately track the current and voltage at the maximum power point, ensuring the energy supply stability of the drone during energy transmission; Subsequently, a constant rheological pulse charging scheme based on P&O was established by combining the output characteristics of P&O and unmanned aerial vehicle lithium batteries, which improved the polarization reaction of unmanned aerial vehicle lithium batteries, thereby enhancing their durability and overall charging rate. The simulation results show that the constant flow pulse charging scheme based on P&O can not only improve the durability of drone lithium batteries, but also reduce the charging time by 289 seconds compared to conventional constant current and constant voltage charging methods, and improve the charging efficiency by 9.45%.

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高会翔,曹阳,彭小峰.基于P&O的恒流变脉冲充电方案研究[J].电子测量技术,2023,46(21):30-36

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  • 在线发布日期: 2024-03-04
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