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对于线性控制系统稳定性的分析,系统设计师可以使用的方法,至少有五种:饶斯—胡尔维茨法;奈魁斯特法;鲍得图法;尼考尔斯曲线法;根轨迹法。 问题在于应当明确,在什么样的场合下须使用什么方法。试问,存在着一种最好的稳定性分析方法吗?在上述方法之间如何互相取长补短?控制系统又应如何进行校正?是否有一种最好的校正方法?本文就要回答这些重要问题。并且概略地给出工程师们希望有的控制系统。 为了明了各种方法的前景以及说明它们之间如何互相补充,原文中列出一张较大的表格。表
For the analysis of the stability of a linear control system, there are at least five methods that the system designer can use: the Rao-Hullwitz method, the Nyquist method, the Bouchard method, the Nicols curve method, the root locus method . The question is what should be made clear on what occasions. Is there one of the best methods of stability analysis? How do these methods complement each other? How can control systems be calibrated? Is there a best method of calibration? This article addresses these important questions. And gives a rough overview of the control systems engineers want. To understand the ways in which the methods are promising and to illustrate how they complement each other, a larger form is presented in the original text. table