优化系绳无人机的电缆选型，提升续航与飞行效率。
Cable Optimization and Drag Estimation for Tether-Powered Multirotor UAVs
- 结合物理模型与系统辨识，统筹考虑悬停与前飞状态
- 通过电缆质量、电阻与气动阻力权衡，提升整体能效
- 适合关注长时滞空无人机设计的工程师与研究人员
多旋翼无人机的飞行时间通常受限于高功耗。有线供电系统可有效延长飞行时间，同时保留多旋翼无人机悬停与机动性优势。本文针对有线多旋翼无人机的电缆选型问题，综合考虑悬停与前飞工况。现有研究常忽略电缆质量、功率损耗与系统约束之间的权衡。我们提出一种新方法，兼顾推力需求与不同飞行条件下的功率效率。该方法融合物理驱动建模与系统辨识，整合悬停与前飞动力学，纳入电机效率、系绳电阻及气动阻力等关键因素。本工作提供直观实用的设计优化框架，确保高效电力传输与飞行性能，从而实现更安全、高效的有线无人机系统。
原文摘要 · Abstract (English)
The flight time of multirotor unmanned aerial vehicles (UAVs) is typically constrained by their high power consumption. Tethered power systems present a viable solution to extend flight times while maintaining the advantages of multirotor UAVs, such as hover capability and agility. This paper addresses the critical aspect of cable selection for tether-powered multirotor UAVs, considering both hover and forward flight. Existing research often overlooks the trade-offs between cable mass, power losses, and system constraints. We propose a novel methodology to optimize cable selection, accounting for thrust requirements and power efficiency across various flight conditions. The approach combines physics-informed modeling with system identification to combine hover and forward flight dynamics, incorporating factors such as motor efficiency, tether resistance, and aerodynamic drag. This work provides an intuitive and practical framework for optimizing tethered UAV designs, ensuring efficient power transmission and flight performance. Thus allowing for better, safer, and more efficient tethered drones.
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