

FOLLOWUS
School of Electronic and Control Engineering, Chang'an University, Xi'an 710064, China
School of Automation, Northwestern Polytechnical University, Xi'an 710129, China
[ "Mao-de YAN, E-mail:mdyan@chd.edu.cn" ]
Xu ZHU, E-mail:zhuxu_1987@sina.com
[ "Xun-xun ZHANG, E-mail:zhangxunxun0427@163.com" ]
[ "Yao-hong QU, E-mail:qyh0809@nwpu.edu.cn" ]
Received:04 January 2016,
Revised:2017-;6-20,
Published:2017-07
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Mao-de YAN, Xu ZHU, Xun-xun ZHANG, et al. Consensus-based three-dimensional multi-UAV formation control strategy with high precision[J]. Frontiers of Information Technology & Electronic Engineering, 2017, 18(7): 968-977.
Mao-de YAN, Xu ZHU, Xun-xun ZHANG, et al. Consensus-based three-dimensional multi-UAV formation control strategy with high precision[J]. Frontiers of Information Technology & Electronic Engineering, 2017, 18(7): 968-977. DOI: 10.1631/FITEE.1600004.
本文提出了一种基于二阶一致性的多无人机编队控制策略,通过邻接通信,引入位置和速度协同变量来产生控制命令。提出了协同导航算法和协同控制算法,它们分别控制位置和姿态,联合二者可保持特定几何队形。整个编队系统包含三部分:六自由度无人机模型、协同导航算法、协同控制算法,编队控制策略是闭环和全状态的。协同导航算法是二阶一致性算法,给出期望的加速度、俯仰角速率和偏航角速率。协同控制算法综合考虑纵向和横侧向机动,通过推导状态方程来设计协同控制律。分析了编队的闭环稳定性,给出了稳定的充分必要条件。利用同步技术,抑制了位置数据中的测量误差,提高了控制精度。仿真中,三维编队飞行验证了所提编队控制策略的可行性和有效性。
We propose a formation control strategy for multiple unmanned aerial vehicles (multi-UAV) based on second-order consensus
by introducing position and velocity coordination variables through neighbor-to-neighbor interaction to generate steering commands. A cooperative guidance algorithm and a cooperative control algorithm are proposed together to maintain a specified geometric configuration
managing the position and attitude respectively. With the whole system composed of the six-degree-of-freedom UAV model
the cooperative guidance algorithm
and the cooperative control algorithm
the formation control strategy is a closed-loop one and with full states. The cooperative guidance law is a second-order consensus algorithm
providing the desired acceleration
pitch rate
and heading rate. Longitudinal and lateral motions are jointly considered
and the cooperative control law is designed by deducing state equations. Closed-loop stability of the formation is analyzed
and a necessary and sufficient condition is provided. Measurement errors in position data are suppressed by synchronization technology to improve the control precision. In the simulation
three-dimensional formation flight demonstrates the feasibility and effectiveness of the formation control strategy.
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