无人机变距电推进系统动力学模型的建立
Establishment of Dynamic Model of UAV Variable Pitch Electric Propulsion System
张勋 1唐庆如 1安斯奇 2遆政宪1
作者信息
- 1. 中国民用航空飞行学院航空工程学院,四川广汉 618307
- 2. 中国民用航空飞行学院航空电子电气学院,四川广汉 618307
- 折叠
摘要
针对应用于中小型无人机上的变距电推进系统动力学建模问题,首先,基于叶素理论和等效电路模型推导变距电驱动系统的非线性模型结构,该模型由一阶惯性环节与非线性混合项组成;其次,搭建试验平台,介绍了测控系统的软硬件设计方案,并给出了系统辨识所需参数的采集方法;最后,给出了动力学模型参数辨识的方法,根据辨识结果建立系统的仿真模型,通过对比仿真结果与实际数据,验证了本文模型的准确性.
Abstract
Aiming at the dynamics modeling pro blem of variable pitch electric propulsion system applied to small and medium-sized UAVs,firstly,based on the leaf element theory and the equivalent circuit model,the nonlinear model structure of the variable pitch electric drive system is derived,which is composed of a first-order inertial link and a nonlinear hybrid term.Secondly,a test platform was built,the software and hardware design scheme of the measurement and control system was introduced,and the acquisition method of the parameters required for system identification was given.Finally,the method of parameter identification of the dynamic model is given,and the simulation model of the system is established according to the identification results,and the accuracy of the model established in this paper is verified by comparing the simulation results with the actual data.
关键词
无人机/变距桨/动力建模/系统辨识Key words
UAV/variable pitch propeller/power modeling/system identification引用本文复制引用
出版年
2024
NETL
NSTL
万方数据