【摘要】 提出了一种基于遗传算法的H∞ 控制系统设计方法 ,把控制系统的多个设计目标转化成不等式约束 ,将H∞ 控制器设计中加权阵的选取表示成一个多目标优化问题 ,通过遗传算法优化加权阵参数 ,进而找到同时满足给定的频域和时域性能指标要求的H∞ 控制器。以UH - 6 0A直升机为对象 ,采用此方法设计出了直升机的鲁棒飞行控制器 ,使得所设计的直升机飞行控制系统不仅具有鲁棒性 ,而且满足所有给定的性能指标要求。更多还原

【Abstract】 This paper presents a new method for designing robust H\-∞ control system, in which the design objectives are converted into the inequality constraints and the selection of weighting functions in H\-∞ controller design is expressed as a multi-objective optimization problem. The H\-∞ controller, which satisfies given frequency-domain and time-domain performance indexes, can be found by using genetic algorithm (GA) to optimize the weighting functions. A robust flight controller for UH-60A helicopter is synthesized using the proposed technique. The resulting flight control system not only has robustness, but also satisfies all given performance requirements.更多还原