Gain margins and phase margins for control systems with adjustable parameters
Gain margins and phase margins for control systems with adjustable parameters
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DOI：
10.2514/3.25351
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发表时间：
1990-05
影响因子：
2.6
通讯作者：
K.W.Han;C.-H. Chang
中科院分区：
文献类型：
--
作者：
K.W.Han;C.-H. Chang
本文提出了一种求参数可调控制系统的增益裕度和相位裕度的方法。所考虑的系统首先通过添加分析增益相位裕度测试仪进行修改。然后，建立了特征方程。最后，利用稳定性方程求出恒增益边界和相位边界的边界。该方法的主要优点是可以获得有关可调参数对增益裕度和相位裕度影响的完整信息。最后将该方法应用于再入飞行器的俯仰速率控制系统，并与现有文献的结果进行了比较。
This paper presents a method for finding the gain margins and phase margins of control systems with adjustable parameters. The considered systems are first modified by adding an analytical gain-phase margin tester. Then, the characteristic equations are formulated. Finally, the stability equations are used to find the boundaries of constant gain margins and phase margins. The main advantage of the proposed method is to obtain complete information about the effects of adjustable parameters on gain margins and phase margins. As an example, the method is applied to a pitch-rate control system for a re-entry vehicle, and comparisons with the results in current literature are made.