Compensators design utilizing the frequency response methods and generating a summary report in Latex: Interactive Graphical User Interface (original) (raw)

Interactive educational tool for the design of compensators using frequency response analysis

The International Journal of Electrical Engineering & Education, 2018

This article provides a didactic platform that is developed to improve the teaching as well as learning of “design of compensators” in control systems engineering. The educational tool comprises a graphical user interface in MATLAB. The graphical user interface permits an individual to investigate various parameters involved in the design of the required compensator, which includes percentage overshoot, peak time, and velocity error constant and observe the results dynamically as the parameters change. The approach used in this article for the design of compensators is based on the frequency response analysis. One can obtain various plots including unit step response plot, Bode plot, and root locus plot for uncompensated and compensated systems to have a better understanding of the designed compensator.

A Review note on Compensator Design for Control Education and Engineering

2014

The compensators are one of the most important aspects in any undergraduate control engineering courses owing to their widespread industrial applications. The degree of convergence of the output waveform for any compensator depends upon proper selection and tuning of the compensator. In this paper the compensator parameters (α, β, τ) of the lead, lag and lag-lead compensators are tuned to their optimum values using the conventional root locus as well as frequency response approach. The compensator algorithm is studied using MATLAB and usefulness of these compensators for controlling process variables are demonstrated using proper tuning. The comparative studies showing promising results are discussed with suitable examples.

Software for Comparative Studies of Phase Lead Compensator Design

IFAC Proceedings Volumes, 1997

The paper describes a new software package developed for designing phase lead / lag controllers for a given system. The package has been developed in the MAT-LAB environment with a powerful graphical user interface. It incorporates several phase lead / lag controller design methods based on the frequency domain technique some of which require a computational approach for a system of any complexity. Considerable education benefit can be obtained from studying the different design approaches which can be compared using loop frequency and closed loop step response plots. Two examples are given to demonstrate this.

Analytical and graphical design of PID compensators on the

2012

This paper focuses on the design of PID compensator to exactly satisfy the gain margin, the phase margin and the gain or phase crossover frequency specifications. The design problem is numerically solved using the so called PID inversion formulae method. A graphical interpretation of the solution on the Nyquist plane is presented. This could be suitable on education environment to deeply understand the design of PID compensators. Simulations results show the effectiveness of the presented method.

A unified approach for continuous-time compensator design via a graphical user interface (GUI)

2007

Department of Electrical and Computer Engineering, College of Engineering Department of System Engineering,U.S. Naval Academy . Abstract. In the field of control theory, compensators are used when a control design does not meet the intended design specifications. Some examples of these design specifications could be percent overshoot (P.O.), settling time (Ts), steady-state error (ess) for a specified system type, gain margin (G.M.), and phase margin (P.M.). This paper will deal with continuous-time compensators. This paper will discuss a compensator graphical user interface (GUI) implemented using Matlab. This GUI enables the user to design a compensator using two different methods. The first method is through the use of the root locus. The second method is through the use of a Bode plot. The root locus method is used in the time domain while the Bode plot is used in the frequency domain. By making both the root locus and Bode plot available on the GUI, the user can take advantage ...

Analytical and graphical design of lead–lag compensators

International Journal of Control, 2011

In this paper an approach based on inversion formulae is used for the design of lead-lag compensators which satisfy frequency domain specifications on phase margin, gain margin and phase (or gain) crossover frequency. An analytical and graphical procedure for the compensator design on the Nyquist and Nichols planes is presented with some numerical examples.

A Graphical User Interface (GUI) for a Unified Approach for Continuous Time Compensator Design

In the field of control theory, compensators are used when a proportional controller design does not meet the intended design specifications. Some examples of these design specifications could be percent overshoot (P.O.), settling time (T s ), steady-state error (e ss ), gain margin (G.M.), and phase margin (P.M.). This paper will discuss a compensator graphical user interface (GUI) implemented using Matlab. This GUI enables the user to design a continuous-time compensator using two different methods that have been unified into one. The first method uses root locus. The second method uses the Bode plot. The root locus method is used in the time domain while the Bode plot is used in the frequency domain. By making both the root locus and Bode plot available on the GUI, the user can take advantage of the features of each design method in order to meet the desired design specifications.

A SIMPLIFIED METHOD OF DESIGNING A PHASE COMPENSATOR TO IMPROVE THE M

Compensators are used to alter the response of a control system in order to accommodate the set design criteria. This is done introducing additional poles and zeros to the system. Improving the mass improve its performance. The paper aims to describe short steps to design a phase system to achieve the desired level of phase margin for system.

A unified analytical design method of standard compensators", arXiv

2012

The aim of this paper is to present a comprehensive range of design techniques for the synthesis of the standard compensators (Lead and Lag networks as well as PID controllers) that in the last twenty years have proved to be of great educational value in a vast number of undergraduate and postgraduate courses in Control throughout Italy, but that to-date remain mostly confined within this country. These techniques hinge upon a set of simple closed-form formulae for the computation of the parameters of the controller as functions of the typical specifications introduced in Control courses, i.e., the steady-state performance, the stability margins and the crossover frequencies.

Auto-tuning of phase lead/lag compensators

Automatica, 2004

In the tuning of phase lead/lag compensators, knowledge of speciÿc points on the frequency response of the plant are required. Such points are speciÿed by their frequency, gain and phase and are not readily available without an accurate model of the plant. Yet such information is important for any auto-tuning procedure to succeed. In this paper, relays with hysterisis are tuned to determine points on the frequency response of a plant with a user-speciÿed gain, g0 or phase, 0. On-line algorithms are developed to tune the operating point of the relay feedback system so that the resulting oscillations correspond to the frequency response of the plant with either gain, g0 or phase, 0. Tuning involves setting either the amplitude of the relay or its hysterisis width. Improvement over the simple application of the describing function is also shown. The results are applied to the auto-tuning of phase lead and lag compensators. Simulations are presented to illustrate the auto-tuning procedures.