All original diagrams have been created using either xg or matlab. To introduce the matlab software for polynomials, script writing and programming aspect of matlab from control systems view point. These tools allow you to determine the response of systems, measure system performance, and visualize system dynamics. The lab also provides tutorial of polynomials, script writing and programming aspect of matlab from. Experiment to draw the frequency response characteristic of a given lag lead. Simulate a dc position control system using matlab and obtain its step. Power systems laboratory user manual department of.
If real automatic steering systems were to use this control approach, cargo ships bound for new york might find themselves in cuba after several days of openloop steering. Together with simulink and additional toolboxes it facilitates control system design and analysis, which can. The user interface is for the most part selfinstructive, but a brief manual is included in appendix. In this lab you will build a model of a secondorder system and observe the response to a step input. Electrical simulation grietelectrical and electronics. Feedback control systems fall, 2005 1 simulink basics simulink is a graphical tool that allows us to simulate feedback control systems. Introduction to simulink section 1 background information this lab will introduce the use of simulink, an extension to matlab, for use in simulating control systems. Abcd parameters for long transmission network 06 02 a. Obtain the unit step response of the following system using simulink. Matlab is a programming language that is specially designed for the manipulation of matrices.
To prepare the students to use matlab labview in their project works. Apps and functions, such as step response plot and bode plot, let you analyze and visualize system. Control systems lab laboratory manual prepared by p. The lab reader has been composed using the lyx document processing system and typeset with latex2. Introduction to control systems design using matlab.
Every student must prepare and submit an individual report to the lab instructor at the subsequent lab session. To improve on this situation, lets consider closedloop control of the system. Getting started with the control system designer matlab. Most control system simulation software packages such as matlab only have functions for continuoustime and discretetime simulations, e. First, use matlab to find the closed loop transfer function of the system. It is not possible to receive a grade of a if one of these sessions is missed.
Ece 429 control systems lab manual the gmu ece department. Convolution convoluting two signals is very simple using matlab as follows. Matlab software is used for simulation of communication experiments students will carry out design experiments as a part of the experiments list provided in this lab manual. It is a common practice to consider the system initially at rest. To introduces the scilab simulation package tool for polynomials, script writing and programming for the system design and analysis from control systems view point. The rst lab quiz will be early in the semester and will focus on matlab usage only. For example, to get information about the function size, enter the following. A matlabbased control systems laboratory experience for. The control system is implemented in matlab on a pc, using the toolboxes realtime workshop and realtime target.
To give the students the opportunity to practice engineering report writing and teamwork. Analysis and simulation of control systems using matlab matlab can be used to analyze systems described by transfer functions or state space. Simulating control systems with simulink and matlab ee128. Control systems, and control engineering techniques have become a ubiquitous part of modern technical society. The material is partly based on material from the department of automatic control, lund institute of technology, sweden. Pdf introduction to control systems design using matlab. Control systemsmatlab wikibooks, open books for an open world. Matlab simulink and control desk programming ds1104 and control in realtime. The impulse response is the response to the dirac input.
Where t rc time constant of the system, k the gain of op amp. The transient response of a system depends on the initial conditions. Due to the limited number of workstations, missed hardware labs cannot be made up. Now i work in different field and did not use matlab as much. Lab manual of feedback control systems page 15 exercise1. For this example, graphically tune your compensator using the root locus editor and openloop bode editor, and validate the design using the closedloop step response. The plots are generated nicely in matlab and the linux version. In control system lab four numbers of codes ec583, ee593, ei593ee and ee691 are performed. You can specify your system as a transfer function, statespace, zeropolegain, or frequencyresponse model. To train the students to use engineering tool, matlab, to create and extend its functions as necessary. Control systems lab manual grietelectrical and electronics. Matlab provides an online help system accessible by using the help command. Polynomials polynomials in matlab are represented by a vector containing the coefficients in descending order.
Power system analysis lab experiments using matlab manual. Power system analysis lab experiments using matlab manual s. Ac servo motor setup, digital multimeter and connecting leads. Since transfer functions are ratio of polynomials, let us see how matlab handles polynomials. Application of the many classical and modern control system design and analysis tools is based on mathematical model. These are done using the data acquisition and control board dacb, which inputs the measured signals to the computer and outputs control action to the actuator in the control loop. Ac servomotor has best use for low power control applications. Automated classifying and grading system of tomatoes using fuzzy logic manual operation is considered as a big factor in a low production and the smart farm system is one way that can address this problem by improving and increasing the quality and quantity of. Matlab 1 is a highperformance language for technical computing. A lab report for each lab except for lab 1 will be due the following week in lab. The control system itself has been built by someone else and is almost a black box to the student.
The primary objective of this experiment is to learn root locus using matlab. When doing the lab, the software packages matlab with control systems toolbox, and. Ybus may be formed by inspection method only if there is no mutual coupling between the lines. Feedback control systems engineering is a multidisciplinary subject and presents a control engineering. Write matlab code to obtain transfer function of a system from its pole,zero, gain values. Dixon et al a matlab based control systems laboratory experience for undergraduate students 219 these tools enable educators and students to focus on control system design, implementation, and evaluation rather than on timeconsuming, lowlevel programing i. Because of its computational power, matlab is a tool of choice for many control engineers to design and simulate control systems. Pdf lab manual control system matlab aamir sohail nagra. You may repeat above steps for various values of field voltages by controlling pot p2 and. Feedback control systems engineering is a multidisciplinary subject and presents a control engineering methodology based on mathematical fundamentals and. Bus admittance is often used in power system studies. Simulate a dc position control system using matlab and obtain its step response. The final step is the computation of an optimal control law for the linearized system, using the linear. Assume pole locations are 2, 1, zero at 1 and gain is 7.
Ecen 44 automatic control systems matlab lecture 1. Matlab is a higherlevel technical computing language that provides a platform for algorithm development, data analysis, data visualization, etc. Pdf control systems lab manual talha shah academia. An ability to find importance of these softwares for lab experimentation. To train the students to use engineering tool, matlab, to create and extend its functions as. Download analysis and design of control systems using matlab. Students will be given a specific design problem, which after completion they. Introduction to the controlsystems laboratory, matlab, and simulink. Nyquist of linear time invariant system using matlab. Oct 30, 2017 the heater in the arduino temperature control lab is regulated with a pid controller to meet a set point. Consider a 345kv transmission line consists of threeconductorflat towers shown in fig.
The io ports of cp 1104 are accessible from inside the. This tutorial demonstrates how to set up a control loop with the temperature control lab. September 10, 20 ee380 control lab iitk lab manual and inputs the values of the controllers parameters into a convenient interface provided on the control system. Simulating control systems with simulink and matlab. System analysis once a model has been introduced in matlab, we can use a series of functions to analyze the system. Type the program in the matlab editor that is in mfile. Generate the following matlab simulink model and simulate its step response. This transmission system consists of a singleconductor per phase, which is a bluebird acsr conductor with a diameter of 1. There will be at least two paperpencil quizzes related to the lab during the semester. Professor control system the study and design of automatic control systems is a vast field. Matlab manual for control system lab, contain the basics of control system rout locus,bode plot,block diagram reduction etc. Control system toolbox provides algorithms and apps for systematically analyzing, designing, and tuning linear control systems. Attendance is required in all hardware lab sessions see the lab schedule at the beginning of this manual.
Obtain the phase margin and gain margin for a given transfer function by drawing bode plots and verify the same using matlab. The lab report for each experiment should contain the sections as mentioned. To study ac servo motor and plot its torque speed characteristics. Nov 10, 2014 no remark 1 021220 introduction to lab view. No lab report will be given a grade better than f until you turn in an approved. To select the integration technique and parameters to be used during simulations, doubleclick on the left terminal of the simulation loop.
I used to be an expertise in matlab and matlab simulink. To design a proportional controller for first order system with dead time using process reaction curve requirements. The rest of the file is the executable matlab code defining the function. Dukkipati, is designed as a supplement to an introductory course in feedback control systems for undergraduate or graduate engineering students of all disciplines. The second lab quiz will be later in the semester and will cover concepts from the labs and lecture and matlab programming.
Introduction matlab has many tools to help you analyze and design systems. It integrates computation, visualization, and programming. On the control system tab, you can select a compensator tuning method, and create response plots for analyzing your controller performance. Develop a plc program for an automatic control system of a. Feedback control systems fall, 2006 1 simulink basics simulink is a graphical tool that allows us to simulate feedback control systems. An ability to express programming and simulation for engineering programs. Now we are ready to simulate the openloop response of the system. To provide a foundation for use of these softwares in real time applications course outcomes 1. Wi s dom control system analysis using matlab by mr. If it is required to convolute any two signals, you can use the conv instruction directly but you should care for the limits of the independent variable of the result as. The analysis and design of control systems using matlab book by rao v. Analysis and design of control systems using matlab by rao.
Using matlab for control systems cise 302 lab manual page 4 cise 302 linear control systems lab experiment 1. Its important parameters are speed torque characteristics. By using matlab and simulink the transfer function can performed to represent s it response as shown in figure 25. Matlab only recognizes the first 31 characters in a variable name.
Using matlab help system, click on help matlab help or type helpdesk to can open the help les. In most of the power system studies it is required to form y bus matrix of the system by considering certain power system parameters depending upon the type of analysis. A quick overview of the syllabus and expectations for lab reports. Control systems and simulation lab lab manual subject code. The performance of the resulted digital control system is compared with the continuoustime control system performance. The model developed to this point is a model of the openloop system. This page is going to discuss using matlab for control systems design and analysis. You can also store, compare, and export different control system designs. Formation of y bus using singular transformation method with and.
Give the required inputs in the command window of matlab in matrix format. By default, control system designer displays these responses when it opens. Obtain the unit impulse response of the following system using simulink. This lab provides an introduction to matlab in the first part. In these code the following experiments has been conducted. Simulink is a software program with which one can do modelbased design such as designing a control system for a dc motor speed control. Power system simulation lab 10eel78 20172018 contents program no.
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