Rohit naik 07241a0247 in partial fulfillment for the award of the degree of bachelor of technology in electrical and electronics engineering gokaraju rangaraju. The uln2003 ic and the l293d motor driver are used to drive the stepper motor as the controller cannot provide current required by. What are the best ways to control the speed of dc motor. Doc speed control of a dc motor using micro controller 8051.
Next, there is created measuring stand consisting of bipolar stepper motor. By using pwm we can easily control the average power delivered to a load and by thus we can easily control the speed of the dc motor. The main idea is to implement the most important subsystems for motor control on a single board. This paper is designed to develop a four quadrant speed control system for a dc motor using microcontroller. Speed control ofdc motorusingmicrocontroller oral presentation on prepared by 1. This tutorial is about dc motor speed control with a pic microcontroller using the pwm method.
Mar 04, 2018 also read the related post pwm based dc motor speed control using microcontroller. This project control the axial rotation in xy plane and to control the rotation of the motor in either xz or yz plane similar circuit can be added. This system can be used effectively in the industrial applications to control the speed of the 3 phase induction motor. Closed loop speed control of dc drive using atmega8l. It is a closedloop control system in which a 40 pin 8 bit cmos flashmic microcontroller chip pic16f877a shown in fig. Bose school of engineering supreme knowledge foundation group of institutions mankundu,hooghly 2. Speed control of three phase squirrel cage induction motor using vf method is implemented. Pdf on jun 1, 2012, akhilendra yadav and others published microcontroller based openloop speed control system for dc motor find, read and cite all the research you need on researchgate.
Microcontroller based control of three phase induction motor. For example, it has applications in electric cars, trucks, and aircraft. Programming the pic16f877a microcontroller for speed. This lowcost singlephase power board is dedicated to universal brushed motors. Microcontrollers are the core components of an electronics project. The stator frequency control is one of simplest methods to control the speed of the induction motor. Temperature based fan speed control and monitoring using. Resolverbased motor control reference design with a bldc motor and c2000 mcu 2 system overview the tida01507 is a complete test setup which allows debugging and exploring motor control without a need for expensive equipment. Embedded based vehicle speed control system using wireless technology. The microcontroller receives the percentage of duty cycles from the keypad and delivers the desired output to switch the motor driver so as to control the speed of the bldc motor. It is a closedloop real time control system, where optical encoder built in this project is coupled to the motor shaft to provide the feedback speed signal to controller. Products available are 8, 16 and 32bit mcus and dscs, analog and interface products, 3phase bldc drivers and development tools. The speed control using pi and pid control modes is explained and an implementation of the controller using opamps is given. Pdf microcontroller based dc motor speed control using.
Microchip provides motor control and drive solutions for brushless dc bldc, brushed dc, steppers, ac induction and more. 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. Oct 29, 2018 we can achieve speed control of dc motor using mechanical or electrical techniques but they require large size hardware to implement but a microcontroller based system provides an easy way to control the speed of dc motor. Microcontroller based solar power ac motor speed control system doi. Microcontroller based speed control of a dc motor using. Aug 06, 2014 doc speed control of a dc motor using micro controller 8051 1. Dc motor speed control using pwm with pic microcontroller. Nevonprojects provides the widest list of microcontroller based projects for engineers, students and researchers. This work reports the development of a microcontroller based control system to change the speed of a dc motor. It is a closedloop real time control system, where optical encoder is coupled to the motor shaft to provide the feedback speed signal and angular position of shaft to the microcontroller. Armature voltage is varied by pulse width modulation pwm of input dc voltage. These innovative project topics are built on proposed industry as well as domestic.
Dc motor interfacing with 8051 microcontroller using l293d. Pwm based dc motor speed control using microcontroller circuit principle the heart of this project is the 8051 microcontroller. The output voltage of the sensor is fed to the ad channel of the microcontroller. The first circuit in this project is implemented using an l293d motor driver ic. In this paper, a brushless dc motor with distributed winding and a special form of pmrotor with special stator periphery are described. The disadvantages are high initial cost, and more complicated motor speed controllers wu et al. Circuit of microcontrollerbased dc motor speed controller d c motor speed controllers are very useful for controlling the motion of robotic and industrial automation systems. Since the l293d motor driver has option for four output pins, only a bipolar stepper motor can be driven. When ksp2222a is on, the motor starts to gain speed and off then motor looses speed. Microcontroller based speed control of induction motor using.
Instructions to the microcontroller are fed through cell phone connection to the system. An experimental system for the speed and direction control of brushed dc motor using a microcontroller has been developed successfully. Automatic fan speed control system using microcontroller. Rohit naik 07241a0247 in partial fulfillment for the award of the degree of bachelor of technology in electrical and. Abstractthe goal of developing the system is to control the speed of vehicles and to avoid accidents. This paper is mainly concerned on dc motor speed control system by using microcontroller pic 16f72. Embedded based vehicle speed control system using wireless. Microcontroller based vehicle speed control system information technology essay. Microcontroller based pwm inverter for speed control of a three phase induction motor article pdf available in international journal of engineering and technology 52. This project is mainly concerned on design and implementation of bidirectional dc motor speed and position control system by using microcontroller atmega32 and lab view software.
They consist of the command control program needed to run the project. Among the many methods used in the control of the speed of a dc motor the microcontroller based method was adapted in a closedloop real time control system approach making use of the pic16f877a with a program in flow code developed to implement a feasible control system. Speed control of dc motor using pic microcontroller the. Speed control of a machine is the most vital and important part in any industrial organization. Arockia edwin xavier 1,2electrical and electronic engineering, thiagarajar college of engineering, madurai tamil nadu email.
The paper deals with stepper motor control using microcontroller atmega816pu. The project stepper motor control illustrates the use of microcontroller and switching circuit to control the speed of stepper motor. Development of a microcontroller based dc motor speed control. The components and assembly of this microcontroller circuit are highlighted in this paper, and the constructed circuit tested. Speed control of three phase squirrel cage induction motor. Pulse width modulation pwm technique was used to control the amount of power delivered to the load the dc motor without dissipating any wasted power. The coils are activated, one phase after the other, by the drive. Based on the sensed temperature the speed of the motor is controlled using pwm. The research focus on unifying the global positioning system with embedded wireless system is the new approaches in intelligent vehicle control for critical remote location application using arm. The block diagram of the dc motor control system in this work is shown in fig.
This system describes the design and implementation of the at89c51 microcontroller based closed loop dc motor speed control system that controls the speed of a dc motor through optically coupled half controlled scr bridge rectifier used as a motor driver circuit. Doc speed control of a dc motor using micro controller 8051 1. The speed control of the dc motor is achieved using standard pwm techniques in a sensorless closed loop feedback control fashion. To achieve the speed control dac is used which generates voltages gradually according to.
An atmega family microcontroller is used to give pwm power to an optocoupler which drives the triac giving supply to the induction motor. In our robotics applications we may have to control the speed of the dc motor. The proposed hardware system is implemented by at89s52 microcontroller. Direct current dc motor has become an important drive configuration for many applications across a wide range of powers and speeds, due to its easy control and excellent performance. In conventional system they are designed to control the speed of vehicles in all days. Pwm based dc motor speed control using microcontroller. The hardware circuits that have been designed for the controlled fan speed system in this, research which consists of the lm35, pic microcontroller, bldc motor and lcd as shown in, which also include the fig. Pulse width modulation pwm technique is used where.
Microcontroller based dc motor speed control using pwm technique. Microcontroller based speed control of induction motor using power line communication technology system is done and the developed hardware is tested with variable load. The output of the of trim pot is also given to the second mcrocontroller and it will show the speed according to the calibration, in the lcd display. The controller presented here uses the pulsewidth modulation pwm technique. The developed hardware system is tested in power electronics laboratory. By using pwm we can easily control the average power. In this tutorial we will see how to control the speed of a dc motor using pulse width modulation. Circuit of microcontroller based dc motor speed controller d c motor speed controllers are very useful for control ling the motion of robotic and industrial automation systems. In the paper are mentioned two ways of control, namely fullstep mode and halfstep mode control. Programming the pic16f877a microcontroller for speed control. A pid controller is a closedloop control implementation that is widely used and is most commonly used as a feedback controller.
The micro controller based speed controlling system can be used in various industries such as chemical, textile and cement to operate the motor according to the desired speed. 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. Block diagram ad hnicue microcontroller, induction motor, i miss. Earlier, we have already seen how to control the speed of dc motor using pwm without microcontroller. The actual motor speed is calculated by tracking the time. The speed control of the bldc motor is archived by varying the duty cycles pwm pulses from the microcontroller according to the program. For stepper motor control it has to be used hbridge as well as amplifier in one module. Armature voltage is varied by pulse width modulation pwm of input dc voltage by using the developed microcontrollers program. Embedded system of dc motor closed loop speed control. The proposed system uses a microcontroller of the 8051 family and a rectifiedpower supply. Now, its time to build stepper motor control system.
The main advantage in using a dc motor is that the speedtorque relationship can be varied to almost any useful form. Microcontrollerbased solar power ac motor speed control system. Pdf microcontroller based pwm inverter for speed control. Dc motor speed control using pic microcontroller pwm method.
The pid controller used to control the speed and position of dc motor system is also explained in this chapter. Dc motor speed control using 8051 microcontroller mahesh madivali. The response of the controller to load variations is looked at. Microcontroller based closed loop speed and position control. Chaudhari bharati vidyapeeth abstractthe speed of the induction motor can be controlled by various methods. Microcontrollers can provide easy control of dc motor. Pdf on jun 1, 2012, akhilendra yadav and others published microcontroller based openloop speed control system for dc motor find, read and. Closed loop control for a brushless dc motor using pic. The practical application of l293d ic is l293d acts as an interfacing device dc motor interfacing with 8051 microcontroller by which we can control the speed and direction of the motor. Microcontroller based vehicle speed control system. To control dc motor speed with pic microcontroller, we should know about these two features.
Speed control of a dc motor using microcontroller 8051 a project report submitted by s. In this project, implementation of the atmega16 microcontroller for speed control of dc motor fed by a l293d driver circuit has been investigated. When speed of the vehicle nears the speed limit it displays the warning and if exceeds the limit, the microcontroller records the violated speed and. Pdf microcontroller based bidirectional dc motor control. The hardware circuits that have been designed for the controlled fan speed system in this, research which consists of the lm35, pic microcontroller, bldc motor and lcd as. Microcontrollerbased solar power ac motor speed control. Simple analogue bidirectional dc motor speed control. Which develop a speed control system for a bldc motor by closed loop control technique.
Conclusion with this very basic concept of direction and speed control we can move the motor clockwise and anticlockwise as a result lift can move in forward and backward direction and we can vary the speed of a dc motor. The objective of developing this project is to control the speed of dc motor. Microcontroller based dc motor speed controller kumar fig. One such technique is pulse current system is identified. This project control the axial rotation in xy plane and to control the rotation of the. We apply this technique in conventional dc motor speed control based on our project so as to control the speed of the dc microcontroller is analyzed. We can modulate the power of the ac line to vary the speed of the induction motor through ac driver circuitry. Dc motor speed control system the speed control of a motor is frequently required in industrial applications, robotics, home. Microcontroller based speed control of induction motor.
Microcontroller based 4 quadrant dc motor speed control. Several temperature ranges was set in the code to vary the motor speed based on the level of temperature sensed. Stepper motor interfacing with 8051 microcontroller. Pdf microcontroller based dc motor speed control using pwm. May 19, 2017 i already posted about interfacing dc motor with pic microcontroller. Embedded system of dc motor closed loop speed control based.
Resolverbased motor control reference design with a bldc. Microcontroller based closed loop speed and position. In this tutorial we will see how to control the speed of a dc motor using pulse width modulation pwm. This paper reports a microcontroller based control system to change the speed and direction of rotation of dc motor. A dc brushless motor uses a permanent magnet external rotor, three phase of driving coils, one or more hall effect devices are used to sense the position of rotor, and the associated drive electronics. If the speed goes beyond first limit then alarm is generated to notify the driver and after that if the speed. There are many applications of dc motors, where we need a variable speed of dc motor. This is the basic concept behind the speed and direction control of a dc motor. This reference manual describes the design of a lowcost chopper motor control drive system based on th e mc68hc908qt4 microcontroller, an igbt insulated gate bipolar transistor, and an ultrafast high voltage freewheeling diode. This is a method to control the output voltage with the of constant frequency switching and by adjusting on duration of switching and in other words by changing duty cycle of switching. A bldc motor is composed of the motor, controller and position sensor. Chapter 4 shows and discusses the result of the speed control dc motor system using pid controller. I already posted about interfacing dc motor with pic microcontroller. Stepper motor control using 8051 microcontroller principle the main principle of these circuits is to rotate the stepper motor step wise at a particular step angle.
Microcontrollerbased solar power ac motor speed control system doi. Drm057, open loop universal motor chopper based on the. The best method for speed control of dc motor is the use of pulse width modulation technique. Microcontroller based speed control system consist of electronic component, microcontroller and the lcd. In other words, this system runs the motor at 25%,50% or 75% of the total speed when user set this percentage of. If you have worked with any variant of the 8051 microcontroller, you might remember that 8051 doesnt have a dedicated pwm circuitry to enable pwm mode. Practical applications in which speed and direction of dc motor can be controlled by interfacing with 8051 microcontroller are discussed below. The pwm wave for speed control is generated using atmel at89c52 microcontroller. Speed control of brushless dc motor using microcontroller.
Microcontrollerbased dc motor speed controller kumar fig. Four quadrant speed control of dc motor with the help of. We can achieve speed control of dc motor using mechanical or electrical techniques but they require large size hardware to implement but a microcontroller based system provides an easy way to control the speed of dc motor. Pulse width modulation pwm technique is used which is generated using microcontroller atmega32 the pwm signal generated will drive the motor driver circuit. The second microcontroller is used to control the lcd display. Speed control of dc motor using pic microcontroller. The design requirement of the dc motor system is set to design the controller. Stepper motor control using microcontroller at89c51. Temperature based speed control of fan using microcontroller 10. Dc motor speed control using 8051 microcontroller youtube.
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