Showing papers on "Closed-loop pole published in 2019"
TL;DR: A simple but effective approach has been proposed for the design of 2-DOF Proportional-Integral-Derivative (PID) controller for the control of Maglev system in simulation and real-time for the very first time, to the best of author's knowledge.
25 citations
25 Jun 2019
TL;DR: In the proposed control design, a polynomial based pole placement approach was used to simultaneously damp and track the closed-loop poles to achieve a larger bandwidth control and reduced tracking error than the traditional PAVPF implementation.
Abstract: Positive acceleration, velocity and position feedback (PAVPF) control scheme has been successfully applied to piezoelectrically actuated nanopositioning systems to suppress resonance impelled vibrations. This control design shows a couple of improvements like high bandwidth control. The design framework is based on the principle in which damping is imparted by shifting the closed loop poles arbitrarily further into the left-half plane. In the proposed control design, a polynomial based pole placement approach was used to simultaneously damp and track the closed-loop poles to achieve a larger bandwidth control and reduced tracking error than the traditional PAVPF implementation as shown by experimental results.
3 citations
1 Mar 2019
TL;DR: This approach not only eases out the implementation of digital/analog realization of a Fractional Order PID (FOPID) controller with its integer order but at the same time it also preserves the advantages of fractional order controller.
Abstract: Rotating machines and its applications directly affect the basic economic issues and deals very closely with human life. Its safe operation is hence an absolute necessity. Rotors with speed higher than a specific threshold value become unstable due to rotating damping forces produced by the dissipation in rotor material, couplings or due to friction in tool-tips and splines. Some techniques do exist for stabilizing rotors however they are not well suited for small, micro and mini rotor systems. Orbital response function and 2-stage sub-optimal controller tuning methodology in rotor system actuated by a piezo actuator for providing adequate damping force has been used to keep the rotor stable. The approximated integer order PID gains thus obtained from conformal mapping-based FO method of stage 2 tuning pushes the closed loop poles of the system towards greater damping as compared to stage 1. This approach not only eases out the implementation of digital/analog realization of a Fractional Order PID (FOPID) controller with its integer order but at the same time it also preserves the advantages of fractional order controller. Simulation is done on MATLAB & SIMULINK. The analysis of the performances for both the cases are discussed.
1 citations
1 Jan 2019
TL;DR: Several important applications of feedback systems in designing electronic circuits are presented in this chapter and some are employed in designing some of the control systems to be presented in subsequent chapters in this book.
Abstract: Several important applications of feedback systems in designing electronic circuits are presented in this chapter. Some of these applications are employed in designing some of the control systems to be presented in subsequent chapters in this book. Some other applications, such as those of oscillator circuits, constitute by themselves complete control systems requiring the employment of the control theory concepts introduced in the previous chapters.