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Control allocation for a class of morphing aircraft with integer constraints based on Lévy flight
Journal of Systems Engineering and Electronics ( IF 2.1 ) Pub Date : 2020-08-01 , DOI: 10.23919/jsee.2020.000056
Lu Yao , Sun You , Liu Xiaodong , Gao Bo

Aiming at tracking control of a class of innovative control effector (ICE) aircraft with distributed arrays of actuators, this paper proposes a control allocation scheme based on the Levy flight. Different from the conventional aircraft control allocation problem, the particular characteristic of actuators makes the actuator control command totally subject to integer constraints. In order to tackle this problem, first, the control allocation problem is described as an integer programming problem with two desired objectives. Then considering the requirement of real-time, a metaheuristic algorithm based on the Levy flight is introduced to tackling this problem. In order to improve the searching efficiency, several targeted and heuristic strategies including variable step length and inherited population initialization according to feedback and so on are designed. Moreover, to prevent the incertitude of the metaheuristic algorithm and ensure the flight stability, a guaranteed control strategy is designed. Finally, a time-varying simulation model is introduced to verifying the effectiveness of the proposed scheme. The contrastive simulation results indicate that the proposed scheme achieves superior tracking performance with appropriate actuator dynamics and computational time, and the improvements for efficiency are active and the parameter settings are reasonable.

中文翻译:

基于 Lévy 飞行的具有整数约束的一类变形飞机的控制分配

针对一类具有分布式执行器阵列的创新控制效应器(ICE)飞机的跟踪控制,提出了一种基于Levy飞行的控制分配方案。不同于传统的飞机控制分配问题,执行器的特殊特性使得执行器控制命令完全受整数约束。为了解决这个问题,首先,控制分配问题被描述为具有两个期望目标的整数规划问题。然后考虑到实时性的要求,引入了一种基于Levy飞行的元启发式算法来解决这个问题。为了提高搜索效率,设计了多种有针对性的启发式策略,包括可变步长和根据反馈的遗传种群初始化等。此外,为了防止元启发式算法的不确定性,保证飞行的稳定性,设计了保证控制策略。最后,引入时变仿真模型来验证所提出方案的有效性。对比仿真结果表明,所提出的方案在适当的执行器动力学和计算时间下实现了优异的跟踪性能,并且效率的提高是积极的,参数设置是合理的。引入时变仿真模型来验证所提出方案的有效性。对比仿真结果表明,所提出的方案在适当的执行器动力学和计算时间下实现了优异的跟踪性能,并且效率的提高是积极的,参数设置是合理的。引入时变仿真模型来验证所提出方案的有效性。对比仿真结果表明,所提出的方案在适当的执行器动力学和计算时间下实现了优异的跟踪性能,并且效率的提高是积极的,参数设置是合理的。
更新日期:2020-08-01
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