Nyquist稳定判据的分析与应用  

Analysis and Application of Nyquist Stability Criterion

作　　者：郑恩让[1] 陈蓓[1] 张玲[1] ZHENG Enrang;CHEN Bei;ZHANG Ling(School of Electrical&Control Engineering,Shaanxi University of Science&Technology,Xi′an710021,China)

机构地区：[1]陕西科技大学电气与控制工程学院,西安710021

出　　处：《电气电子教学学报》2022年第3期137-139,共3页Journal of Electrical and Electronic Education

基　　金：陕西高等教育教学改革研究项(21BZ036);陕西省第二批新工科研究与实践项目(陕教〔2020〕75号)。

摘　　要：根据“自动控制原理”课程中对Nyquist稳定判据的推导证明,对含有纯滞后、位移和纯滞后环节的开环系统,利用Nyquist稳定判据判定其闭环系统的稳定性。通过判据的实例应用,激发学生对知识的理解和理论学习重要性的认识,达到对知识点的理解与掌握。In this paper,the Nyquist stability criterion is deduced and proved in the Automation Cntrol Principle course.For the open-loop system with time-delay or displacement and lag link,the stability of aclosed-loop control system is determined by Nyquist stability criterion.Through the application of exampleson the criterion,we can help students to cultivate the understanding of knowledge,recognize the importance of theoretical learning,and finally achieve the purpose of mastering relevant knowledge points.

关 键 词：Nyquist稳定判据 分析 应用 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论] G642.0[自动化与计算机技术—计算机科学与技术]