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. Introduction matlab has many tools to help you analyze and design systems. Matlab provides an online help system accessible by using the help command. Because of its computational power, matlab is a tool of choice for many control engineers to design and simulate control systems. Consider a 345kv transmission line consists of threeconductorflat towers shown in fig. You can specify your system as a transfer function, statespace, zeropolegain, or frequencyresponse model. The io ports of cp 1104 are accessible from inside the. Ybus may be formed by inspection method only if there is no mutual coupling between the lines. It integrates computation, visualization, and programming. There will be at least two paperpencil quizzes related to the lab during the semester. Simulate a dc position control system using matlab and obtain its step. Using matlab for control systems cise 302 lab manual page 4 cise 302 linear control systems lab experiment 1. Bus admittance is often used in power system studies.
Control systems, and control engineering techniques have become a ubiquitous part of modern technical society. The impulse response is the response to the dirac input. Consider the digital control system shown in figure1. Professor control system the study and design of automatic control systems is a vast field. Write matlab code to obtain transfer function of a system from its pole,zero, gain values. To study ac servo motor and plot its torque speed characteristics. Control systemsmatlab wikibooks, open books for an open world. 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. This page is going to discuss using matlab for control systems design and analysis. Simulink is a software program with which one can do modelbased design such as designing a control system for a dc motor speed control.
Most control system simulation software packages such as matlab only have functions for continuoustime and discretetime simulations, e. Dukkipati, is designed as a supplement to an introductory course in feedback control systems for undergraduate or graduate engineering students of all disciplines. Matlab was written originally to provide easy access to matrix software developed by the linpack linear system package and eispack eigen system package projects. The model developed to this point is a model of the openloop system. Together with simulink and additional toolboxes it facilitates control system design and analysis, which can. Matlab 1 is a highperformance language for technical computing.
I used to be an expertise in matlab and matlab simulink. The control system is implemented in matlab on a pc, using the toolboxes realtime workshop and realtime target. By default, control system designer displays these responses when it opens. Students will be given a specific design problem, which after completion they. To introduce the matlab software for polynomials, script writing and programming aspect of matlab from control systems view point. Since transfer functions are ratio of polynomials, let us see how matlab handles polynomials. Assume pole locations are 2, 1, zero at 1 and gain is 7. Feedback control systems fall, 2005 1 simulink basics simulink is a graphical tool that allows us to simulate feedback control systems. Obtain the poles and zeros of the transfer function given below. 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 plots are generated nicely in matlab and the linux version. Analysis and design of control systems using matlab by rao. Analysis and simulation of control systems using matlab matlab can be used to analyze systems described by transfer functions or state space. All original diagrams have been created using either xg or matlab.
In this lab you will build a model of a secondorder system and observe the response to a step input. Develop a plc program for an automatic control system of a. This way, the student becomes acquainted with the various control ex. A matlabbased control systems laboratory experience for. A lab report for each lab except for lab 1 will be due the following week in lab. An ability to express programming and simulation for engineering programs.
The lab also provides tutorial of polynomials, script writing and programming aspect of matlab from. To select the integration technique and parameters to be used during simulations, doubleclick on the left terminal of the simulation loop. Power system simulation lab 10eel78 20172018 contents program no. Matlab simulink and control desk programming ds1104 and control in realtime. To train the students to use engineering tool, matlab, to create and extend its functions as. The rest of the file is the executable matlab code defining the function.
Nov 10, 2014 no remark 1 021220 introduction to lab view. Now i work in different field and did not use matlab as much. Response of the first order system with unit impulse response. In control system lab four numbers of codes ec583, ee593, ei593ee and ee691 are performed. To train the students to use engineering tool, matlab, to create and extend its functions as necessary. Obtain the unit step response of the following system using simulink. 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. 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. Formation of y bus using singular transformation method with and. Using matlab for control systems cise 302 lab manual page 7 variables variable names. Ecen 44 automatic control systems matlab lecture 1. By using matlab and simulink the transfer function can performed to represent s it response as shown in figure 25. Convolution convoluting two signals is very simple using matlab as follows.
Type the program in the matlab editor that is in mfile. On the control system tab, you can select a compensator tuning method, and create response plots for analyzing your controller performance. 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. 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 is a programming language that is specially designed for the manipulation of matrices. It is a common practice to consider the system initially at rest. Feedback control systems engineering is a multidisciplinary subject and presents a control engineering. Power systems laboratory user manual department of. Application of the many classical and modern control system design and analysis tools is based on mathematical model. 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.
Simulating control systems with simulink and matlab. Matlab only recognizes the first 31 characters in a variable name. Nov 16, 2016 i did not use matlab for quite a while. This lab provides an introduction to matlab in the first part. No lab report will be given a grade better than f until you turn in an approved. The lab reader has been composed using the lyx document processing system and typeset with latex2. Similar to the continuous time case, transient response of a digital control system can also be characterized by the following.
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. Control systems and simulation lab lab manual subject code. Its important parameters are speed torque characteristics. Nyquist of linear time invariant system using matlab. Where t rc time constant of the system, k the gain of op amp.
Download analysis and design of control systems using matlab. Control system toolbox provides algorithms and apps for systematically analyzing, designing, and tuning linear control systems. Lab manual of feedback control systems page 15 exercise1. Generate the following matlab simulink model and simulate its step response. Ece 429 control systems lab manual the gmu ece department. Give the required inputs in the command window of matlab in matrix format. The analysis and design of control systems using matlab book by rao v. Simulate a dc position control system using matlab and obtain its step response.
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. Matlab can be used with systems given in the form of transfer. Simulating control systems with simulink and matlab ee128. The transient response of a system depends on the initial conditions. First, use matlab to find the closed loop transfer function of the system. Feedback control systems engineering is a multidisciplinary subject and presents a control engineering methodology based on mathematical fundamentals and. System analysis once a model has been introduced in matlab, we can use a series of functions to analyze the system. Using matlab help system, click on help matlab help or type helpdesk to can open the help les. Experiment to draw the frequency response characteristic of a given lag lead. Ac servo motor setup, digital multimeter and connecting leads. A quick overview of the syllabus and expectations for lab reports. The second lab quiz will be later in the semester and will cover concepts from the labs and lecture and matlab programming. To improve on this situation, lets consider closedloop control of the system. The user interface is for the most part selfinstructive, but a brief manual is included in appendix.
Every student must prepare and submit an individual report to the lab instructor at the subsequent lab session. Wi s dom control system analysis using matlab by mr. These tools allow you to determine the response of systems, measure system performance, and visualize system dynamics. Matlab manual for control system lab, contain the basics of control system rout locus,bode plot,block diagram reduction etc. To introduces the scilab simulation package tool for polynomials, script writing and programming for the system design and analysis from control systems view point. Pdf control systems lab manual talha shah academia. Feedback control systems fall, 2006 1 simulink basics simulink is a graphical tool that allows us to simulate feedback control systems. The primary objective of this experiment is to learn root locus using matlab. Electrical simulation grietelectrical and electronics. Due to the limited number of workstations, missed hardware labs cannot be made up. Obtain the phase margin and gain margin for a given transfer function by drawing bode plots and verify the same using matlab. You can also store, compare, and export different control system designs. Power system analysis lab experiments using matlab manual s.
To give the students the opportunity to practice engineering report writing and teamwork. The lab report for each experiment should contain the sections as mentioned. This tutorial demonstrates how to set up a control loop with the temperature control lab. Introduction to the controlsystems laboratory, matlab, and simulink. The material is partly based on material from the department of automatic control, lund institute of technology, sweden. The rst lab quiz will be early in the semester and will focus on matlab usage only. Apps and functions, such as step response plot and bode plot, let you analyze and visualize system. An ability to find importance of these softwares for lab experimentation. To design a proportional controller for first order system with dead time using process reaction curve requirements. Getting started with the control system designer matlab. Oct 30, 2017 the heater in the arduino temperature control lab is regulated with a pid controller to meet a set point. The performance of the resulted digital control system is compared with the continuoustime control system performance.
To prepare the students to use matlab labview in their project works. Control systems lab laboratory manual prepared by p. Matlab is a higherlevel technical computing language that provides a platform for algorithm development, data analysis, data visualization, etc. This transmission system consists of a singleconductor per phase, which is a bluebird acsr conductor with a diameter of 1. The final step is the computation of an optimal control law for the linearized system, using the linear.
Power system analysis lab experiments using matlab manual. When doing the lab, the software packages matlab with control systems toolbox, and. This lab is to write a general matlab program function to simulate the step response of a sampleddata digital. Control systems lab manual grietelectrical and electronics. Introduction to control systems design using matlab. Pdf introduction to control systems design using matlab.
In these code the following experiments has been conducted. Obtain the unit impulse response of the following system using simulink. Abcd parameters for long transmission network 06 02 a. The control system itself has been built by someone else and is almost a black box to the student. Attendance is required in all hardware lab sessions see the lab schedule at the beginning of this manual. Ac servomotor has best use for low power control applications. Pdf lab manual control system matlab aamir sohail nagra. Polynomials polynomials in matlab are represented by a vector containing the coefficients in descending order. Now we are ready to simulate the openloop response of the system. You may repeat above steps for various values of field voltages by controlling pot p2 and. For example, to get information about the function size, enter the following.
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