基于Thevenin模型的无人机电池续航能力的估算方法  

Estimation method of UAU battery endurance based on Thevenin model

作　　者：莫兴丹 周彬[2] 刘晓燕[2] 刘伟 

机构地区：[1]重庆理工大学<电气与电子工程学院>,重庆400054 [2]重庆电子工程职业学院<智能制造与汽车学院>,重庆400054

出　　处：《科技视界》2020年第6期199-202,共4页Science & Technology Vision

基　　金：国家自然科学基金(61601069);重庆市基础研究与前沿探索项目(cstc2017jcyjAX0254);重庆市教委科学技术研究项目(KJ1600935)。

摘　　要：针对无人机电池的动态特性,提出了一种基于电池等效电路的Thevenin模型,根据混合脉冲功率特性测试(HPPC),在不同荷电状态下,对无人机电池内部的欧姆电阻、极化电阻、极化电容参数进行识别。通过对无人机电池进行放电测试,使用matlab建立无人机电池荷电状态(SOC)的拟合模型,无人机电池的剩余续航时间的预测模型。结果表明,基于Thevenin等效电路建立的评估模型,能使无人机续航能力的预测误差在10%范围内。According to the dynamic characteristics of UAV battery,a Thevenin model based on the battery equivalent circuit was proposed.According to the mixed pulse power characteristic test(HPPC),the parameters of ohmic resistance,polarization resistance and polarization capacitance inside the UAV battery were identified under different state of charge.By conducting discharge test on UAV battery,matlab was used to establish the fitting model of SOC of UAV battery and the prediction model of the remaining battery life of UAV.The results show that the evaluation model based on the Thevenin equivalent circuit can accurately predict the endurance of UAV battery.

关 键 词：无人机电池 Thevenin模型 荷电状态 续航能力 

分 类 号：TM912[电气工程—电力电子与电力传动]