Lecturer: Zhang Yanjun

Abstract:

Taking the PD control of a typical second-order system as an example, the report firstly gives the analytical expressions of the phase angle margin and amplitude margin, and analyzes the variation law of the system's phase angle margin in relation to the system parameters. It further analyzes how to adjust the gain of PD control based on adaptive technology in the case of unknown parameters, thus solves the technical challenge of phase margin preset in the case of parameter uncertainty, and achieves the tracking of control target. The results show that correcting the PD control gain with the adaptive control technology may realize the stability margin compensation and ensure the desired performance of the system in the time and frequency domains.

About the lecturer:

Zhang Yanjun, D.E., a researcher and doctoral supervisor of Beijing Institute of Technology. He has been long engaged in the research of adaptive control theory and aircraft application of non-standard nonlinear systems. He has taken charge of general and youth programs of the National Natural Science Foundation of China, the National "Postdoctoral Innovation Talent Support Program", and a number of horizontal projects of the 601 Institute of AVIC Shenyang Aircraft Company Limited. So far, he has published more than 30 papers as the first/corresponding author, and won 5 national authorized invention patents. He has also participated in 2 national key R&D projects, 2 national defense projects, and 6 key and general projects of the National Natural Science Foundation of China.

Invited by:

Yu Yongyuan,associateresearcherof theSchool of Mathematics

Time:

10:00-11:00, October 14 (Friday)

Venue:

Tencent Meeting

Contact: Yu Yongyuan, email: yyyu@sdu.edu.cn

Sponsored by: School of Mathematics, Shandong University