A PI/PID controller for time delay systems with desired closed loop time response and guaranteed gain and phase margins

S Srivastava, VS Pandit - Journal of Process control, 2016 - Elsevier
In this article we present a graphical tuning method of PI/PID controller for first order and
second order plus time delay systems using dominant pole placement approach with …

[HTML][HTML] LQR based improved discrete PID controller design via optimum selection of weighting matrices using fractional order integral performance index

S Das, I Pan, K Halder, S Das, A Gupta - Applied Mathematical Modelling, 2013 - Elsevier
The continuous and discrete time Linear Quadratic Regulator (LQR) theory has been used
in this paper for the design of optimal analog and discrete PID controllers respectively. The …

Design and implementation of digital fractional order PID controller using optimal pole-zero approximation method for magnetic levitation system

AS Chopade, SW Khubalkar… - IEEE/CAA Journal of …, 2016 - ieeexplore.ieee.org
The aim of this paper is to employ fractional order proportional integral derivative (FO-PID)
controller and integer order PID controller to control the position of the levitated object in a …

LQR based optimal tuning of PID controller for trajectory tracking of magnetic levitation system

EV Kumar, J Jerome - Procedia Engineering, 2013 - Elsevier
In this paper, we consider the stabilization and trajectory tracking of magnetic levitation
system using PID controller whose controller gains are determined via Linear Quadratic …

An overview of FOPID controller design in v-domain: design methodologies and robust controller performance

S Tufenkci, BB Alagoz, B Senol… - International Journal of …, 2023 - Taylor & Francis
The complex v-plane is an emerging design domain for fractional order control system
design. Recently, several works demonstrated the advantages of tuning FOPID controllers in …

An adaptive frequency-fixed second-order generalized integrator-quadrature signal generator using fractional-order conformal mapping based approach

MA Akhtar, S Saha - IEEE Transactions on Power Electronics, 2019 - ieeexplore.ieee.org
The frequency-fixed second-order generalized integrator-based quadrature signal generator
(FFSOGI-QSG) has been widely used in grid synchronization applications. The major …

Extending the concept of analog Butterworth filter for fractional order systems

A Acharya, S Das, I Pan, S Das - Signal processing, 2014 - Elsevier
This paper proposes the design of fractional order (FO) Butterworth filter in complex w-plane
(w= sq; q being any real number) considering the presence of under-damped, hyper …

An optimal PID controller via LQR for standard second order plus time delay systems

S Srivastava, A Misra, SK Thakur, VS Pandit - ISA transactions, 2016 - Elsevier
An improved tuning methodology of PID controller for standard second order plus time delay
systems (SOPTD) is developed using the approach of Linear Quadratic Regulator (LQR) …

Tuning of LQR-PID controller to control parallel manipulator

C Choubey, J Ohri - Neural Computing and Applications, 2022 - Springer
The paper presents mathematical modeling and optimal path control of a 3-DOF Maryland
manipulator. Three dissimilar and consecutive paths are taken under observation, and …

Multi-objective LQR with optimum weight selection to design FOPID controllers for delayed fractional order processes

S Das, I Pan, S Das - ISA transactions, 2015 - Elsevier
An optimal trade-off design for fractional order (FO)-PID controller is proposed with a Linear
Quadratic Regulator (LQR) based technique using two conflicting time domain objectives. A …