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Microcontroller Based Adjustable Speed Closed Loop Dc Motor Drive
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Book Synopsis Microcontroller Based Adjustable Speed Closed-loop Dc Motor Drive by : Yousef S. Ettomi Ali
Download or read book Microcontroller Based Adjustable Speed Closed-loop Dc Motor Drive written by Yousef S. Ettomi Ali and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The speed control of DC motors is crucial especially in applications where precisions and protection are of importance. This work investigates and implements a microcontroller-based adjustable speed drive system for a system shunt motor. The theory of the armature voltage control algorithms in a closed loop system has been successfully implemented. An IGBT switch is used in buck configuration to control armature voltage of the motor. The PWM signal that controls the IGBT is generated from a motorola 68 HC11 microcontroller. The speed of the motor is measured by a shaft encoder and directly fed to the microcontroller along with a speed reference signal. A data acquisition routine reads the measured speed and the reference speed in digital format and generates the error value signal. The error values signal is directly fed into the proportional controller routine to commute the controller output. Finally, the controller output is used to generate a PWM, which completes the loop by controlling the switch. To protect the motor from gih current, a current monitoring routine is implemented to read the motor current through a Hall effect sensor. If the motor current is higher than its rated curent halting the PWM generation routine will stop. Experimental results obtained have supported the idea of the design. The speed of the motor could be controlled over a wide range using the dc chopper and the PWM. Employment of a microcontroller has shown a great improvement in the acceleration, speed reduction, and deceleration and over current protection of a dc motor.
Book Synopsis Adjustable Closed-loop DC Motor Speed Controller by : Nurul Atikah Nasir
Download or read book Adjustable Closed-loop DC Motor Speed Controller written by Nurul Atikah Nasir and published by . This book was released on 2012 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: The speed control of DC motors is very crucial in applications where the importance of precision and protection. Purpose of a motor speed controller is to take a signal representing the required speed and to drive a motor at that speed. Micro controller can provide easy control of DC motor. This project is about speed control system of DC motor by using micro controller and it is a closed-loop control system. Pulse Width Modulation (PWM) technique is used where its signal is generated in microcontroller which is the signal will send to motor driver to vary the voltage supply to control motor speed.
Book Synopsis Microcontroller Based DC Motors by : Lakshminarayana Gadupudi
Download or read book Microcontroller Based DC Motors written by Lakshminarayana Gadupudi and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Motion control is required in large number of industrial and domestic applications. Such systems employed for motion control are called drives. Direct current (dc) drives are extensively used in industry all over the world. This project takes the area speed control of dc motor using low cost and easily available 8-bit microcontroller. The speed of dc motor is linearly increasing speed and most popular. The dynamic response of dc drive is better than other drives, it has only varying the armature voltage of the motor and there is no harmonics and frequency loss. The speed and current feed-back paths are available from digital signal and analog signal respectively. The proportional integral controller logic is used to calculate the error signal and generate the control signal.The combination of proportional integral controller is used for dynamic response of the closed-loop control system. The AT89S52 microcontroller is used to implementation of proportional integral logic in the C language of KEIL IDE complier. In-System Programmer is used for loading the program from personal system to 89S52 microcontroller.
Book Synopsis Speed Control of Sensorless Brushless DC Motor by : MD Sabbir Ahmed
Download or read book Speed Control of Sensorless Brushless DC Motor written by MD Sabbir Ahmed and published by . This book was released on 2018-11-22 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is all about running a brushless DC motor using a sensorless technique. The target of the work was to make a very simple operating method for a brushless motor and formulate a speed control mechanism. Initially the work was started with both considering back-EMF and without considering back-EMF. Because of more complexity in the back-EMF sensing method, and as our intention was to make a simpler and cost effective operation, so finally we assembled our project the without back-EMF sensing. Even though being a simple and inexpensive machine, the performance was quite good. However adding back-EMF sensing in this machine can give it more dependability.TABLE OF CONTENTS: DECLARATIONIAPPROVALIIACKNOWLEDGEMENTIIILIST OF FIGURESVIIABSTRACTIXCHAPTER 1INTRODUCTION101.1.Introduction101.2.Historical Background101.3.Advantage over Traditional Method111.4.Objective of this Work121.4.1.Primary objectives121.4.2.Secondary Objectives121.5.Introduction to this Thesis12CHAPTER 2BRUSHLESS DC MOTOR142.1.Introduction142.2.Comparison of Brushless motor with brushed motors152.3.Structure of a BLDC152.3.1.Stator162.3.2.Rotor172.4.Operating Principle182.4.1.Sensored Commutation192.4.2.Conventional Control Method Using Hall-effect Sensors202.4.3.Sensorless Control222.5.Applications232.6.Summary24CHAPTER 3MOTOR DRIVE SYSTEMS253.1.Introduction253.2.Components of Drive Electronics253.3.Inverter263.3.1.Three-Phase Inverter263.3.1.1.120-Degree Conduction273.3.1.2.180-Degree Conduction293.4.Speed Control Techniques303.4.1.Open Loop Speed Control313.4.2.Closed Loop Speed Control313.4.2.1.Proportional-Integral (PI) Controller323.5.PWM based Methods333.5.1.Conventional 120° PWM technique333.5.2.PWM Duty Cycle Calculation333.6.Summary34CHAPTER 4SIMULATION354.1.Introduction354.2.Simulation354.2.1.Simulating Three-Phase Inverter364.2.2.Simulating Controller Unit384.3.Simulation Results394.3.1.Speed Control404.4.Summary40CHAPTER 5HARDWARE IMPLEMENTATION415.1.Introduction415.2.Equipments and Components425.3.Power Supply Unit435.4.Microcontroller Unit445.5.Motor Drive Unit455.6.Performance of the System465.7.Summary47CHAPTER 6DISCUSSIONS AND CONCLUSIONS486.1.Discussions486.2.Suggestion for future Work496.2.1.Limitations496.2.2.Future Scope496.3.Conclusions50REFERENCES51APPENDIX A53SPEED CONTROL FLOWCHART53APPENDIX B54MICROCONTROLLER CODES54APPENDIX C55ATMEGA32 (MICROCONTROLLER)556.3.1.Pin Descriptions556.3.2.Block Diagram586.3.3.Electrical Characteristics59APPENDIX D60L298 (DUAL FULL-BRIDGE DRIVER)606.3.4.Pin Configurations606.3.5.Maximum Ratings61
Book Synopsis DC Motors, Speed Controls, Servo Systems by : Sam Stuart
Download or read book DC Motors, Speed Controls, Servo Systems written by Sam Stuart and published by Elsevier. This book was released on 2013-10-22 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: DC Motors - Speed Controls - Servo Systems: An Engineering Handbook is a seven-chapter text that covers the basic concept, principles, and applications of DC and speed motors and servo systems. After providing the terminology, symbols, and systems of units, this book goes on dealing with the basic theory, motor comparison, and basic speed control methods of motors. The subsequent chapters describe the phase-locked servo systems and their optimization and applications. These topics are followed by a discussion of the developments made by Electro-Craft in the field of DC Brushless Motors. The final chapter provides revised data sheets on Electro-Craft products and describes the models in the motomatic range of speed controls, servomotor controls, and digital positioning systems. This handbook is of great value to professional engineers and engineering students.
Book Synopsis A DC Motor Controller Using PID Algorithm Implementation on PIC by : Wan Robaah W Ahmad
Download or read book A DC Motor Controller Using PID Algorithm Implementation on PIC written by Wan Robaah W Ahmad and published by . This book was released on 2008 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project is about controlling the speed of DC servo motor by using Proportional-Integral-Derivative (PID) algorithm then implemented on Peripheral Interface Circuit (PIC) microcontroller. The main objective of this project is to control the speed of DC servo motor at the demanded speed or to drive the motor at that speed. The speed of a DC motor usually is directly proportional to the supply voltage. So, if we reduce the supply voltage from 12 Volts to 6 Volts, the motor will run at half the speed. It could be achieved by simply adjusting the voltage sent to the motor, but this is quite inefficient to do. So, A PID controller becomes the best way to overcome this problem. PID attempts to correct the error between a measured process variable and a desired setpoint by calculating and then outputting a corrective action that can adjust the process accordingly. In this project, the PID algorithm that is added to the system becomes a closed loop system. A simulation using MATLAB software is implemented to tune PID algorithm by changing the value of Proportional gain, Kp, Integral gain, Ki and Derivative gain, Kd to get a speed of the motor which is less overshoot and increase settling time. Then, a PIC microcontroller is programmed by adding the value of tuned PID algorithm to control the speed of DC servo motor. At the end of the project, the speed of the DC servo motor should be maintain even the supply voltage is varied.
Book Synopsis Control Systems for Power Electronics by : Mahesh Patil
Download or read book Control Systems for Power Electronics written by Mahesh Patil and published by Springer. This book was released on 2015-04-01 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: The scope of the book covers most of the aspects as a primer on power electronics starting from a simple diode bridge to a DC-DC convertor using PWM control. The thyristor-bridge and the mechanism of designing a closed loop system are discussed in chapter one, two and three. The concepts are applied in the fourth chapter as a case study for buck converter which uses MOSFETs as switching devices and the closed loop system is elaborated in the fifth chapter. Chapter six is focused on the embedded system basics and the implementation of controls in the digital domain. Chapter seven is a case study of application of an embedded control system for a DC motor. With this book, the reader will find it easy to work on the practical control systems with microcontroller implementation. The core intent of this book is to help gain an accelerated learning path to practical control system engineering and transform control theory to an implementable control system through electronics. Illustrations are provided for most of the examples with fundamental mathematics along with simulations of the systems with their respective equations and stability calculations.
Book Synopsis BLDC Motor Drive Simulation and Control by : Dr. Devendra Potnuru
Download or read book BLDC Motor Drive Simulation and Control written by Dr. Devendra Potnuru and published by Sankalp Publication. This book was released on with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: : Electric motors is necessary for all most of all practical systems and becoming integral part in everybody life of modern living. It is hard to imagine that there are more than 700million electric motor drive systems of various sizes are operational throughout the world. In the last few years conditions have been changed in adjustable speed drives due to wide spread use of power semiconductor devices with available ratings up to 6000V and 3000A without even connecting series or paralleling the devices. The present competitive development in the solid state devices, control systems and signal processing all over the world result in significant progress in performance of AC drives and decreasing the overall drive cost. In order to meet different practical applications, various types of motors such as synchronous motors, induction motors, DC motors, switched reluctance motors, from several millwatts to millions of kilowatts. The Permanent Magnet Brushless DC (BLDC) motors have been emerged in wide areas of real world applications due to their higher power density, good dynamic performance and ease of control. Further, the motor has high efficiency over a good speed range. In this book simulation of BLDC motor drive and its control is elaborately discussed and is useful for students and faculty members to understand the simulation and control aspect of BLDC motor drive.
Book Synopsis Development of a Microcontroller-based Speed Control System for DC Motors by : Ramkumar Rajan
Download or read book Development of a Microcontroller-based Speed Control System for DC Motors written by Ramkumar Rajan and published by . This book was released on 1991 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Speed Control of Induction Motor Using Microcontroller by : Sarat Kumar Sahoo
Download or read book Speed Control of Induction Motor Using Microcontroller written by Sarat Kumar Sahoo and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: -- To implement speed control of induction motor. -- To implement closed loop volt per hertz technique based speed control of induction Motor using Matlab Simulink. -- To implement the above proposed model using Microcontroller (8051) -- This type of drive is suitable for applications which do not require high levels of accuracy or precision, such as pumps and fans. -- Low cost because there is no feedback device, the controlling principle offers a low cost and simple solution to controlling economical AC induction motors.
Book Synopsis Control of DC Motor Using Different Control Strategies by : Dr. Hidaia Mahmood Alassouli
Download or read book Control of DC Motor Using Different Control Strategies written by Dr. Hidaia Mahmood Alassouli and published by Dr. Hidaia Mahmood Alassouli. This book was released on 2020-06-30 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ultimate goal of this paper is to control the angular speed, in a model of a DC motor driving an inertial load has the angular speed, as the output and applied voltage, as the input, by varying the applied voltage using different control strategies for comparison purpose. The comparison is made between the proportional controller, integral controller, proportional and integral controller, phase lag compensator, derivative controller, lead integral compensator, lead lag compensator, PID controller and the linear quadratic tracker design based on the optimal control theory. It has been realized that the design based on the linear quadratic tracker will give the best steady state and transient system behavior, mainly because, the other compensator designs are mostly based on trial and error while the linear quadratic tracker design is based on the optimal control theory which can give best dynamic performance for the controlled system.
Book Synopsis Design of Control Systems for DC Drives by : Arne Buxbaum
Download or read book Design of Control Systems for DC Drives written by Arne Buxbaum and published by Berlin : Springer-Verlag. This book was released on 1990 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Classical and Modern Controls with Microcontrollers by : Ying Bai
Download or read book Classical and Modern Controls with Microcontrollers written by Ying Bai and published by Springer. This book was released on 2018-12-13 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the design, implementation and applications of embedded systems and advanced industrial controls with microcontrollers. It combines classical and modern control theories as well as practical control programming codes to help readers learn control techniques easily and effectively. The book covers both linear and nonlinear control techniques to help readers understand modern control strategies. The author provides a detailed description of the practical considerations and applications in linear and nonlinear control systems. They concentrate on the ARM® Cortex®-M4 MCU system built by Texas InstrumentsTM called TM4C123GXL, in which two ARM® Cortex®-M4 MCUs, TM4C123GH6PM, are utilized. In order to help the reader develop and build application control software for a specified microcontroller unit. Readers can quickly develop and build their applications by using sample project codes provided in the book to access specified peripherals. The book enables readers to transfer from one interfacing protocol to another, even if they only have basic and fundamental understanding and basic knowledge of one interfacing function. Classical and Modern Controls with Microcontrollers is a powerful source of information for control and systems engineers looking to expand their programming knowledge of C, and of applications of embedded systems with microcontrollers. The book is a textbook for college students majored in CE, EE and ISE to learn and study classical and modern control technologies. The book can also be adopted as a reference book for professional programmers working in modern control fields or related to intelligent controls and embedded computing and applications. Advances in Industrial Control reports and encourages the transfer of technology in control engineering. The rapid development of control technology has an impact on all areas of the control discipline. The series offers an opportunity for researchers to present an extended exposition of new work in all aspects of industrial control.
Book Synopsis Microprocessor Speed Control of a Closed-loop DC Motor by : Hassaan Aslam
Download or read book Microprocessor Speed Control of a Closed-loop DC Motor written by Hassaan Aslam and published by . This book was released on 1998 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Direct Current Motor Control Led by Microcontroller Created PWM by : Thinesh Kunasegeran
Download or read book Direct Current Motor Control Led by Microcontroller Created PWM written by Thinesh Kunasegeran and published by . This book was released on 2012 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Direct current (DC) motor has already become an important drive configuration for many applications across a wide range of powers and speeds. The ease of control and excellent performance of the DC motors will ensure that it is widely used in many applications. This project is mainly concerned on DC motor speed control system by using microcontroller PIC 16F877A. Pulse Width Modulation (PWM) technique is used where its signal is generated in microcontroller. The program for PWM generation is written in C+ Language using MPLAB IDE software. It is programmed into the microcontroller using PIC Microcontroller Start-up Kit. Then the microcontroller is installed into the motor control circuit. The Microcontroller acts as the motor speed controller in this project. The PWM signal will send to motor driver to vary the voltage supply to motor to acquire desired speed. Besides, it also shows a graph of motor speed versus PWM dutycycle percentage to let the user monitor the performance of the system easily. Based on the result, the readings are quite reliable. Through the project, it can be concluded that microcontroller PIC 16F877A can control motor speed at desired speed efficiently by using Pulse Width Modulation signal.
Book Synopsis Principles of Electric Machines and Power Electronics by : P. C. Sen
Download or read book Principles of Electric Machines and Power Electronics written by P. C. Sen and published by New York ; Toronto : J. Wiley. This book was released on 1997 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition combines the traditional areas of electric machinery with the latest in modern control and power electronics. It includes coverage of multi-machine systems, brushless motors and switched reluctance motors, as well as constant flux and constant current operation of induction motors. It also features additional material on new solid state devices such as Insulated Gate Bipolar Transistors and MOS-Controlled Thrysistors.
Book Synopsis Development of a Microcontroller-based Variable Speed Induction Motor Drive Controller by : N. M. Tsang
Download or read book Development of a Microcontroller-based Variable Speed Induction Motor Drive Controller written by N. M. Tsang and published by . This book was released on 1988 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt:
