Industrial Engineering and Management Department, LUT School of Engineering Science, Lappeenranta-Lahti University of Technology LUT, Lappeenranta, Finland
Anton Mandrik
Higher School of Cyberphysical Systems and Control, Institute of Computer Science and Technology, Peter the Great St. Petersburg Polytechnic University, Saint Petersburg, Russia
Department of Electrical Engineering, LUT School of Energy Systems, Lappeenranta-Lahti University of Technology LUT, Lappeenranta, Finland
Sergei Chechurin
(Deceased) Higher School of Cyberphysical Systems and Control, Institute of Computer Science and Technology, Peter the Great St. Petersburg Polytechnic University, Saint Petersburg, Russia
This paper presents and compares two practical implementation schemes based on parametric and coordinate control. The parametric feedback control idea employs a parametric resonance phenomenon. An approximate frequency domain stationarization approach yields the setting for a very simple controller scheme. The application and numerical analysis of the results are given for the pendulum control example, which length varies in a parametric control case. The coordinate and parametric control demonstrate similar damping properties. The study also provides an inventive idea for passive parametric control combined with coordinate control that shows better damping.
