Project report on speed control of dc motor pdf

Circuit diagram of the temperaturebased fan speed control and monitoring using arduino. The pace of dc motor is straightforwardly relative to the voltage functional across its terminals. This paper describes a matlabsimulink realization of the direct current dc motor speed control method by controlling the voltage applied to the field circuit of a separately excited dc motor in. Dc motor speed control using arduino the engineering. Project report on speed control of dc motor by using pwm technique free download as word doc. Dc motors are rarely utilized in normal applications as a result of all electrical supply firms furnish electrical energy but, for special applications like in steel mills, mines and electric traction, its advantageous to convert ac into dc so as to use dc motors. For controller design two methods are used, namely frequency shaping method and pwm control. And it is widely used in speed control systems which need high control requirements, such as rolling mill, doublehulled tanker, high precision digital tools and etc 4. Building projects using small permanent magnet dc motor for cars, robots, quads requires a speed controllers to make them work flawlessly. Dc motor introduction, principle and working introduction. Abstract an implementation of pid controllers for the speed control of a dc motor is given in this report. The motor is modeled as a rst order system and its response is studied. We first develop the differential equations and the laplace domain transfer. Dc motor speed and direction controller project based on l293d hbridge and 555 timer ic.

Bldc motor has various application used in industries like in drilling, lathes, spinning, electric bikes etc. Pdf the purpose of this project was to control the angular rate of the load shaft position of a dc motor by varying the applied input voltage. Jul 11, 2019 speed control of a dc motor is either done manually by the operator or by means of an automatic control device. Dc motor speed control using arduino the engineering projects. In other words, this system runs the motor at 25%,50% or 75% of the total speed when user set this percentage of. In this tutorial, i have controlled its speed as well by providing different voltage levels at the enable pin of the dc motor control driver l298. Pdf a project report on acdc drive and speed control. A bluetooth modem is used to receive direction commands and pwm commands. Project report speed control of induction motor eceprojects.

It directly provides rotary motion and, coupled with wheels or drums and cables, can provide translational motion. Closed loop control for a brushless dc motor to run at the exactly entered speed is a system that controls the bldc brushless dc motor speed according to the user defined speed. For this example, we will assume that the input of. Therefore, if voltage through motor terminal is different, then pace can too be different. Dc motor speed controller detailed circuit diagram available. By varying the pulse width duty cycle, we are able to create variable speed motor. Speed and direction control of dc motor using arduino. Dc motor speed control system the speed control of a motor is frequently required in industrial applications, robotics, home appliances, etc. In fact, fine speed control is one of the reasons for the strong. This paper describes a matlabsimulink realization of the direct current dc motor speed control method by controlling the voltage applied to the. It is configured for automobile usage with negative terminal of the power supply connected to.

By varying the armature voltage for below rated speed. Speed control of a dc motor using microcontroller 8051 a project report submitted by s. The circuit comprises a timer ne555 ic1, mediumpower driver transistor bd239 t1, highpower switching transistor bd249 t2 and a few other discrete components. Project report on speed control of dc motor by using pwm. Pdf speed control of dc motor by using pwm technique project. Part 1fully functional dc motor control in this lab you will create a control interface and use the knowledge from lab 3 to create a pwm square wave to drive a dc motor. This project is built using the popular 555 timer ic. Lm35 is a precision integratedcircuit whose output voltage is linearly proportional to celsius centigrade temperature. When you turn in the lab report, please answer the following questions.

For this dc motor is interfaced to the 8051 microcontroller. Automation results into better quality, increased production an reduced costs. This paper contains the description about the design, construction and implementation of the speed control circuit for. Dc motor control project electrical and computer engineering. Speed control of a dc motor is either done manually by the operator or by means of an automatic control device. Using this established relationship between the speed and the supply voltage, this paper investigates the effects of different loads and inputs on the output response of the armature controlled direct current motor. Speed control of dc motor the speed of a dc motor is given by i flux control. This proposed system provides a very precise and effective speed control. The purpose of this experiment is to design and implement a closeloop speed control of a dcmotor drive. This paper will focus on the modeling and position control of a dc motor with permanent magnets.

Share on tumblr simple circuit using timer ic 555 and mosfet irf 540 given for dc motor speed control, some dc motors have unfit rpm rotation per minute for projects to control speed of dc motor this simple circuit can be used. The dc motor speed control project is intended to manage the pace of a dc motor by means of an 8051 sequence microcontroller. The aim of this project is to provide seasoned, tested, trusted and sustainable distributed power solutions via solar technology to offgrid communities in sub. Nov 07, 2018 a dc motor is an inductive load and can produce back emf when we are changing the direction. Pdf study of dc motor and its speed control by pulse width. Apr 10, 2017 in this tutorial, i have controlled its speed as well by providing different voltage levels at the enable pin of the dc motor control driver l298. We shall use the same dcmotor for which the parameters were calculated in the. A common actuator in control systems is the dc motor. The dc motor whose speed is to be controlled using the pid controller in the fig. Modelling and simulation of armaturecontrolled direct. So, lets get started with dc motor speed control using arduino uno. Such a fine speed control is generally not possible with ac motors.

In this report, we have implemented a dc motor speed control system. If you are using microcontroller means you can bias this timer ic through micro controller gpio pin and then you can control speed of motor by varying vr1 resistor. Dc motor control tutorials home the engineering projects. Dc motor speed control is carried out by use of four quadrant chopper drive. To control the speed of the motor, the voltage applied is pulse width modulated. Pdf digital speed control of dc motor for industrial automation. Doc speed control of a dc motor using micro controller 8051. To accomplish this, you will need to write a code that allows the user to control the speed of the motor manually. Firstly, mathematical model of dc motor was created. It is a closedloop control system, where optical encoder built in this project is coupled to the motor shaft to provide the feedback speed signal to controller. In industry dc motor is widely uses for speed control and load characteristics, its easy controllability.

Duty cycle is the main factor while controlling the speed of the dc motor. Doc speed control of a dc motor using micro controller 8051 1. This paper contains the description about the design, construction and implementation of the speed control circuit for induction motor. Brushless motor controller report spring 2010 may 15, 2010 brian clementi mae of 2010 322 bogert ave. Closed loop control for a brushless dc motor using pic. There are several methods for controlling the speed of dc motors. We send in a pulse width modulated signal from port t3 which will drive the motor.

The idea of a speed control system is to maintain the speed of the motor at the desired value under various condition. Here is a simple dc motor speed controller circuit that can be configured to control the sweep rate of automobiles windscreen wiper. Rohit naik 07241a0247 in partial fulfillment for the award of the degree of bachelor of technology in electrical and. Dec 10, 2017 speed control methods of a dc motor can be varied by varying flux, armature resistance or applied voltage. Such a fine speed control is generally not possible with a. The principal advantage of a dc motor is that its speed can be changed over a wide range by a variety of simple methods. The modulation of pulse width is obtained using cd4010b schmitt trigger and rectifier 1n4140. The aim of this project is to control the speed and direction of a dc motor without using a motor driver ic. Simple dc motor electrical project electrical technology. The project pwm fed speed control of induction motor using pc is implemented successfully by using 16f877a pic microcontroller. Then the speed of the motor is tested for varying voltages and the varying speed of motor is noted for every rise in voltages. May 14, 2014 iii abstract the aim of development of this project is towards providing efficient and simple method for control speed of dc motor using pulse width modulation technique. By applying a variable voltage across its armature, any desired speed can be obtained.

Veermata jijabai technological institute 55 speed control of dc motor by using pwm technique. In other words, this system runs the motor at 25%,50% or 75% of the total speed when user set this percentage of speed from digital keypad. One input is the pulse width modulated signal which. May, 20 the project pwm fed speed control of induction motor using pc is implemented successfully by using 16f877a pic microcontroller. The hardware project is designed to control the speed of a bldc motor using closed loop control technique. In fact, fine speed control is one of the reasons for the strong competitive position of d. Dc motor speed and direction controller using l293d. Microcontroller based speed control of a dc motor using. Control motor speed with a computer algorithm microcontroller 12 vdc motor ac tachometer amplifier 9 vdc power supply signal conditioning frequency. I have also printed the executed commands on lcd for this project. Experiment 5 dc motor speed control walter scott, jr. Hence, the goal of this project is to modify a motor controller board to enable control of a brushless motor and create a motor controller to run the motor. Dc motors that use feedback control are called dc servomotors.

In fact, fine speed control is one of the reasons for the strong competitive position of dc motors in modern industrial applications. The electric equivalent circuit of the armature and the freebody diagram of the rotor are shown in the following figure. Todays industries are increasingly demanding process automation in all sectors. This paper we presented detail account of the design, analysis, computing of the proposed pulse width modulation technology. May 24, 2017 for the direction control of dc motor the functionality remains the same as it was in dc motor direction control with arduino in proteus but for the speed control, i have placed an light dependent resistor ldr sensor in the simulation and depending on the value of the ldr sensor the speed dc motor will either increase or decrease. The speed control using pi and pid control modes is explained and an implementation of the controller using opamps is given. The 293d provides bidirectional drive current up to 600ma a voltage from 5v to 12v. In this project we are used pulse width modulation. Circuit diagram of the temperature fan speed control and monitoring is shown in fig. Microcontrollers can provide easy control of dc motor.

In this project dc motors speed is controlled by sending the command through pc. Speed control of dc motor by using pwm technique project. Thus we conclude that the pwm technique is the most efficient for controlling the speed of the dc motor. The field of this motor is permanently connected across the dc supply lines. Microcontroller based speed control system consist of electronic component, microcontroller and the lcd. In this project, implementation of the atmega16 microcontroller for speed control of dc motor fed by a l293d driver circuit has been investigated.

It will be helpful to vary the speed of the dc motor in either clockwise or in anti clockwise direction. In order to eliminate the effect of any back emf, four diodes are connected across the collector and emitter of each transistor. Technical report pdf available may 2019 with 9,782 reads. Speed control of dc motor using pwm technique pdf projects. For creating and simulating the mathematical model matlab program with simulink extension was used. This variable voltage is supplied by a motorgenerator. Dc motor introduction, principle and working my tech info. A project report on acdc drive and speed control of electric motor in partial fulfilment of the requirement of the award for the certificate of diploma in the stream of electrical engineering summer internshiptraining report. In our initial tests we determined that the speed of the car was too fast when the battery was fully charged for our sensors to detect the track while not very responsive while the battery was low. What are the best ways to control the speed of dc motor.

If you have a question that why the motor armature rotates and what is magmatic field and how magnet produces the magmatic field and what is the effect of magmatic field on current carrying conductor on armatureetc,, then leave a comment, we will satisfy you with a short explanation. Another set up consisted of half bridge rectifier consisting of thyristor wherein the speed control for the same dc motor was carried out using the firing angle of the thyristor. We used the fact that the speed of a dc motor is directly proportional to the voltage applied across its windings. Here we are going to see, how to control the speed of the small dc motor using 555 timer. For the direction control of dc motor the functionality remains the same as it was in dc motor direction control with arduino in proteus but for the speed control, i have placed an light dependent resistor ldr sensor in the simulation and depending on the value of the ldr sensor the speed dc motor will either increase or decrease. Arduino is at the heart of the circuit as it controls all functions. In this operation t1is on, t4 is off, t2 is continuously on and t3 is continuously off.

Speed control of dc motor by using pwm technique project report. Battery 6 volts, 5 ampere hours ah 2 magnets thin insulated wire 2 metal conductor. This is different to speed regulation where the speed is trying to be maintained or regulated against the natural change in speed due to a change in the load on the shaft. They are known to have precise angular position and have a quick response. A project report on ac dc drive and speed control of electric motor in partial fulfilment of the requirement of the award for the certificate of diploma in the stream of electrical engineering summer internshiptraining report.

We first develop the differential equations and the. Speed control methods of a dc motor can be varied by varying flux, armature resistance or applied voltage. Pdf a project report on acdc drive and speed control of. M1 is the main motor whose speed control is required. Download speed control of dc motor using pwm technique pdf. This system dc motor controller by android is developed to control the speed of the dc motor in both clockwise and anticlockwise direction. Temperature based fan speed control and monitoring using arduino. Speed control of dc motor dc motor speed control youtube. The variable speed drives, which can control the speed of a. The speed control of the dc motors is very essential. Aug 26, 2018 speed control of dc motor with pc interface is an easy diy project. Speed control of dc motor the speed of a dc motor is given by i. The paper deals with design of control for dc motor and analysis with focus on speed control.

Although a far greater percentage of electric motors in service are ac motors, the dc motor is of considerable industrial importance. Essentially, a dc motor consists of a stator, a rotor and a commutator. Speed control of dc motor with pc interface is an easy diy project. Arduino is directly connected to pc through the usb cable and command is given to arduino on serial monitor of the arduino ide. To accomplish this, you will need to write a code that allows the user to control the speed of. As per the results the speed control of dc motor using pwm is considered as very effective in controlling speed in shorter duration of time. Different speed control methods for different dc shunt and series methods are there. Speed control techniques in sep a rtely ex i td dc mo o. Instead of hardcoding a speed into the logic of the car a speed control was implemented.