Dc motor speed control in matlab the engineering projects. A thesis submitted to the graduate college in partial fulfillment of the requirements for the degree of master of science in engineering electrical electrical and computer engineering western michigan university june 2015. Scope shows motor speed, armature current and load torque and. Simulink model of a full state observer for a dc motor. For this example, we will assume that the input of the system is. A dc motor model with input voltage, speed and current output graph. It is important to note that the dc battery pack is necessary to control the dc motor and the stepper motor. International journal of electrical engineering and technology ijeet, issn 0976 6545print, issn 0976 6553online vo.
Dc motor control 1 creation of a dc permanent magnet motor simulink block in library. The pmdc consists of rotor or armature and a stator, which is a permanent magnet. The source code and files included in this project are listed in the project files section, please make sure whether the listed source code meet your. Speed control of a dc motor using pwm video matlab. Modeling and simulation of the dc motor using matlab and. In model there were no controller used for speed control or position control. It also adds a few of the blocks commonly used in simscape.
Using the luenberger full state observer technique, we derive and implement the latter in matlabsimulink for position control of the motor, and verify its operation. Design a speed controller for a dc motor using pulsewidth modulation pwm. Dc motor speed control methods using matlab simulink. Performance analysis of brushless dc bldc motor without. Based on your location, we recommend that you select. For controller design two methods are used, namely frequency shaping method and pwm control. Abstract this paper presents an interactive module for understanding the effect of pi proportional integral controllers in the regulation of dc motor systems. Pdf design and implementation speed control system of dc motor. The microb end of the cable needs to be connected to the programming ort on the due, and the usb end to the pc on which you have matlab installed. It models a sensorless brushless dc motor drive with a braking chopper for a 3hp motor. The speed control of dc motor for different applications is very important. This model shows how to use the controlled pwm voltage and hbridge blocks to control a motor.
Dc motor speed control methods using matlab simulink and. In the tutorial dc motor speed control in labview, i will explain you a complete step by step procedure to control the clockwise and counter clockwise direction of the dc motor as well as accelerating and deacelerating it with the help of the buttons on the gui created in ni labview using serial communication between arduino and ni labview. Ive configured the system clock at 80mhz, and the peripheral clock at 10mhz, am using timer 1 for pulsing the pwm with a given duty cycle, and timer 2 for measuring the motor run time. To see how to tune the pid controller, please see the video demo andor read the blog post. The speed control strategies of dc motor plays an important role in the drive performance. The dc motor whose speed is to be controlled using the pid controller in the fig. This paper describes the speed control of a dc shunt motor using conventional controllers pid, imc and fuzzy logic controller based on matlab simulation program.
Dc motor with speed and current closed loops, driven by etpu. Matlab closed loop control of chopper fed dc motor rkarthikkumar academy. Speed control of dc motor is attracted considerable research and several methods are evolved. Dc motor, where as it is controlled the same as ac motors.
The igbt block does not simulate the gate current controlling the bjt or igbt. The inverter gates signals are produced by decoding the hall effect signals of the motor. A simple dc motor use electricity and magnetic field for producing torque which rotate the motor. Speed control of dc motor using matlab linkedin slideshare. Ill click in the diagram and type in dc voltage source, and then select the component from a list.
A speed regulator is used to control the dc bus voltage. All controllers are widely used in many different areas like process control, manufacturing, automation, aerospace, etc. Modelling and simulation of armaturecontrolled direct. Modeling and simulation of the dc motor using matlab and labview. In this block dialog are the parameters that define the behavior of the motor. Future scope matlab simulation for speed control of dc motor has been done which can be implemented in hardware to observe actual feasibility of the approach applied in this thesis. This example shows a cascade speed control structure for a dc motor. We will now employ these models within simulink to simulate the system response and design different approaches to control. Introduction dc motors are classified into two categories.
Apr 24, 2017 in the tutorial dc motor speed control in labview, i will explain you a complete step by step procedure to control the clockwise and counter clockwise direction of the dc motor as well as accelerating and deacelerating it with the help of the buttons on the gui created in ni labview using serial communication between arduino and ni labview. The torquespeed curves for the speed control methods are determined using the simulink models presented in the previous section. Choose a web site to get translated content where available and see local events and offers. Nov 19, 2015 by using this technique, the pulse width hence then voltage across armature is changed and speed varies. Ac7 sensorless brushless dc motor drive during speed. Design and simulation of speed control of dc motor by fuzzy. Hi, i want to control the speed of a dc motor using a gui and arduino, i have already made the conection between matlab and arduino for 2 leds, but i dont know how to do for controlling the speed. Pid voltage control for dc motor using matlab simulink. The equivalent circuit parameters of the motor are. The tuning of soft computing is very difficult than conventional controller for speed control of dc motor.
Dc motor is designed to run on a dc electric power which is used electrical energy and produce mechanical energy. Guisimulink based interactive interface for a dc motor with. In armaturecontrolled dc motors, the applied voltage va controls the angular velocity w of the shaft. Both approaches are simulated and compared to each other. Keywordscircuit model, state space, dc motors, armature, rotor, luenberger sate observer, simulink.
The control subsystem includes the outer speedcontrol loop, the inner currentcontrol loop, and the pwm generation. The goal of this assignment was to develop a speed control system for a dc motor. Dc motor speed control in labview the engineering projects. For this purpose, a 5horse power hp dc motor of 240 v rating 1,220 rmin is used in the simulation models. Pid controller is used to control a simple dc motor modeled in simulink. The application meets the following performance specifications. Control tutorials for matlab and simulink motor speed. Discrete pid controller to control the speed of the dc motor is designed using uatlab a pid controller to control the speed of the dc motor is designed using uatlab simulink the fuzzy logic controller is designed to control the speed of the dc motor the required drive circuit to implement the control action of the fuzzy logic controller. It directly provides rotary motion and, coupled with wheels or drums and cables, can provide translational motion. Brushless dc motor is chosen in this project because of brushless dc. The motor speed and position are estimated from terminal voltages and currents using a backemf observer 1.
For creating and simulating the mathematical model matlab program with simulink extension was used. Dc motor model simulink file exchange matlab central. As shown in the figure, the system mainly consists of four components. Simulation model we will use the classical model for dc motor with constant excitation. Figure 6 matlabsimulink model for dc motor using fuzzy controller. To model our dc motor, the first thing that well need is a dc voltage source. Checking the stability of the openloop transfer fun ction in matlab using the. Simulink translation of the model open a new mdl file and draw the following model. Nov 10, 20 this video shows how to control dc motors by passing serial commands to a microcontroller from matlab. In addition the result obtained shows that at different. The bldc motor drive system is developed using matlabsimulink 7. Result and discussion simulation result of dc motor without using any controller is shown in fig 1. A mathematical model of the process has been developed using real plant data and then conventional controllers and fuzzy logic controller has been designed. Design and analysis of speed control using hybrid pidfuzzy.
This model is based on a faulhaber series 0615 dcmicromotor. Im trying to create an embedded c code to control a dc motor with the pic32mx460f512l microcontroller. The following matlab project contains the source code and matlab examples used for speed control of a dc motor. The control subsystem includes the rst controller with control horizon of 30, and the. The control subsystem includes the outer speed control loop, the inner current control loop, and the pwm generation. Pmdc permanent magnet dc motor outperforms to ac motor because it provide better speed control on high torque loads and use in wide industrial application. There are two ways of speed control for a dc motor, field control in this method, the eld current or current through stator is varied to control the speed of. Firstly, mathematical model of dc motor was created. The figure 6 gives the matlabsimulink model for control of speed of dc motor using fuzzy logic controller. Speed control of a dc motor using controllers science. Concepts of dc motor for there are two types of motor.
Dc motor with pwm speed control matlab simulink projects. The feedforward gain kff should be set to the reciprocal of the dc gain from va to w. The inverter is a mosfet bridge of the specialized power systems library. Matlab closed loop control of chopper fed dc motor youtube. Performance analysis of brushless dc bldc motor without controller using matlabsimulink environment shivangkumar patel student mgiter, navsari, india abstractthe simulinkmatlab model is designed for analyse the performance of brushless dc motor.
Simulink of pwmcontrolled dc motor matlab answers matlab. A threephase motor rated 1 kw, 500 vdc, 3000 rpm is fed by a six step voltage inverter. A common actuator in control systems is the dc motor. Simulink modeling page we generated two different dc motor models in simulink. That fig may be compared with fig 7 for speed control. The ac7 which requires speed and hall sensors is made sensorless. A linear model of the system can be extracted from the simulink model into the matlab workspace. Dc motor with speed and current closed loops, driven by etpu on mcf523x, rev. The dc motor block uses manufacturer datasheet parameters, which specify the motor as delivering 10w mechanical power at 2500 rpm and noload speed as 4000 rpm when run from a 12v dc supply. This example shows two dc motor control techniques for reducing the sensitivity of w to load variations changes in the torque opposed by the motor load.
Using matlab and arduino for motor control video matlab. The motor starts in the positive direction with a duty cycle of 75% mean dc voltage of 180v. Dc motor arduino matlab matlab answers matlab central. The paper deals with design of control for dc motor and analysis with focus on speed control. Pid voltage control for dc motor using matlab simulink and. The use of speed controller is to take an signal sample of speed and to bring the motor to that desired speed. The electric circuit of the armature and the freebody diagram of the rotor are shown in the following figure. The performance analysis of the modeled system shows that usage of feedback enhances the performance of the transient response of the armature controlled dc motor. Dc motor with speed and current closed loops, driven by. Speed control of dc motor file exchange matlab central. Figure 6 matlab simulink model for dc motor using fuzzy controller.
There are two types of dc motor which is brushed and brushless dc motor. In this demonstration you will see how to quickly tune the pid controller for a planned model in simulink. This module uses simulink model to represent the dc motor model. The torque speed curves for the speed control methods are determined using the simulink models presented in the previous section. The microb end of the cable needs to be connected to the programming ort on the due, and the usb. Modeling and simulation of the dc motor using matlab and labview nicolae patrascoiu automatic and industrial information department, university of petrosani, romania. Here, in this tutorial i will explain about how can make a program for dc motor speed control in matlab by creating a gui having different buttons on it to control the direction of rotation of the dc motor as well as the speed of the dc motor by sending different commands through the serial port. By using this technique, the pulse width hence then voltage across armature is changed and speed varies. The bldc motor drive system is developed using matlab simulink 7. You can also visit the web page with resources for designing and tuning pid controllers. This example shows a cascade speedcontrol structure for a dc motor.
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