自主空中加受油会合阶段控制策略研究

Research on control strategy of autonomous aerial refueling in rendevous phase

无人机自主完成空中加油对提高航程、航时具有重大意义,其中受油机与加油机之间会合阶段的控制策略是保证加受油成功的关键技术。首先,通过分析空中加油过程中有人机与无人机之间的差异性,给出了一种工程上较为可靠的无人机自主空中加受油最优航路设计方法;其次,根据无人机的飞行特点,提出了一种空中加受油会合与编队阶段的控制策略,形成了相应的任务动作,并设计了对应的控制律;最后,通过两架某小型无人机开展了飞行试验,验证了控制策略的可行性,并给出了试验结论。

It is significance for UAV to complete aerial refueling autonomously, so as to improve its range and endurance. The control strategy of the rendezvous stage between the receiving UAV and the refueling UAV is the key technology to ensure the success of aerial refueling. In this paper, a reliable design method of optimal route for autonomous refueling in engineering was proposed based on analyzing the difference between manned refueling and unmanned refueling process. Secondly, according to the flight characteristics of UAV, a control strategy of aerial refueling meeting and formation stage was proposed, and the corresponding mission instructions and control law were designed. Finally, flight test demonstration was finished by two small UAVs, and the test results show that the control strategy is reasonable and feasible.