Nyqusit稳定判据教学方法探索与实践

Exploration and Practice on Teaching Methods of Nyquist Stability Criterion

针对现行教材使用辐角原理推导Nyqusit稳定判据难以理解的现状,提出一种易于理解和掌握且思路清晰连贯的Nyqusit稳定判据推导过程,通过实例说明该方法的正确性,同时指出了该方法的优点。指出教学实践中应用Nyquist稳定判据需注意的问题,教学实践表明该方法有助于学生理解和掌握Nyquist稳定判据。

In the teaching process of control engineering fundamentals,aiming at the case of being uneasy to understand because of employing argument principle in the process of Nyquist stability criterion derivation,this paper presents a new derivative process which is prone to understand and master,and appears a distinct and consistent train of thought.With a living example,the validity and advantage of the derivative process is pointed out.The precautions in the teaching practice of Nyquist stability criterion are presented.With teaching practice,the new teaching method contributes for students to expertly grasp and apply the Nyquist stability criterion.