摘要
针对高超声速飞行器数学模型的不确定性,提出基于逆奈氏阵列法设计预补偿器和定量反馈理论设计控制器相结合的方法。该方法首先对相互关联的飞行器三通道进行预补偿,使开环前向通道的逆传递函数矩阵成为对角优势阵。然后根据某型号飞行器俯仰通道多个模型参数变化范围,利用定量反馈理论进行鲁棒控制器设计。线性和非线性仿真结果表明,该方法跟踪效果良好,具有较强的工程应用价值。
A novel design approach to design controller based on inverse nyquist array（INA） and quantitative feedback theory （QFT） is proposed in this paper, which is aimed at the uncertain mathematical model of hypersonic vehicles. Firstly, we design a precompensator for vehicle＇s three channels with interaction, so as to the inverse transfer function can become diagonal dominance matrix. Then we design a robust controller by using QFT according to the variable bound of multiple models for one type vehicle. The linear and nonlinear simulation results have proved that the proposed design approach is effective and feasible as well as engineering applicability.
出处
《计算技术与自动化》
2009年第1期46-49,共4页
Computing Technology and Automation
基金
国家自然科学基金项目(60674105)
教育部基础科研培育项目(20081383)
关键词
定量反馈理论
高超声速飞行器
逆奈氏阵列
鲁棒控制
quantitative feedback theory
hypersonic vehicle
inverse nyquist array
robust control
