Preview

Speed Control of Dc Motor

Good Essays
Open Document
Open Document
2365 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Speed Control of Dc Motor
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) ISSN: 2278-1676 Volume 3, Issue 6 (Nov. - Dec. 2012), PP 41-48 www.iosrjournals.org

Speed Control of Dc Motor Using Fuzzy Logic Technique
1
1, 2, 3

J. N. Rai, 2Mayank Singhal, 3MayankNandwani

Department of Electrical Engineering, Delhi Technological University

Abstract:This project uses FUZZY LOGIC TECHNIQUE in estimating speed and controlling it for DC motor.
The rotor speed of the dc motor can be made to follow an arbitrarily selected trajectory. The purpose is to achieve accurate trajectory control of the speed of DC Motor, especially when the motor and load parameters are unknown. Such a control scheme gives very accurate and precise result in very short time. The fuzzy logic controller employs if-else form programming of the various conditions to control the motor speed.

I.

Introduction

Direct current (DC) motors have been widely used in many industrial applications such as electric vehicles, steel rolling mills, electric cranes, and robotic manipulators due to precise, wide, simple and continuous control characteristics. The development of high performance motor drives is very important in industrial as well as other purpose applications. Generally, a high performance motor drive system must have good dynamic speed command tracking and load regulating response. DC drives, because of their simplicity, ease of application, reliability and favourablecost have long been a backbone of industrial applications. DC drives are less complex with a single power conversion from AC to DC. DC drives are normally less expensive for most horsepower ratings. DC motors have a long tradition of use as adjustable speed machines and a wide range of options have evolved for this purpose. In these applications, the motor should be precisely controlled to give the desired performance. Traditionally rheostatic armature control method was widely used for the speed control of low power dc motors.



References: [1] [2] [3] [4] [5] [6] FUZZY AND SOFT COMPUTING- Jyh-shing, Roger Jang, Chuen-Tsai Sun K. B. Mohanty,“Fuzzy remote controller for converter DC motor drives” , Parintantra, Vol. 9, No. 1, June 2004 Zimmermann, H. (2001). Fuzzy Set Theory And Its Applications. Boston: Kluwer Academic Publishers. ISBN 0-7923-7435-5 Yager, Ronald R, Filev, Dimitar P. (1994). Essentials of Fuzzy Modelling and Control. New York: Wiley. ISBN 0 -471-01761-2 Santos, Eugene S. (1970). “Fuzzy Algorithms”. Information and Control 17 (4) B.C Kuo–Digital Control Systems-2 nd Edition www.iosrjournals.org 48 | Page

You May Also Find These Documents Helpful

  • Good Essays

    Xc60 Unit 8 Project

    • 568 Words
    • 3 Pages

    In the PC the math lab code is written to get the frequency of different voltages that are produced by brainwave sensor. This is given to the ARM processor by the protocol which is responsible by the UART. The ARM will process the signal and the corresponding emotion is displayed on the LCD display and the speed of the DC motor is reduced or increased based on the voltage and by changing the duty cycle of the PWM signal which is derived by the relay driver and the below diagram represents the serial data transmission to the arm through UART and driving the output to different devices which is responsible by the GPIO. The speed of the wheel is reduced based on the generated frequencies and there cross- ponding emotions by differing the PWM signal which is done by writing the embedded C programme in keil software and it is processed by using the ARM…

    • 568 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Nt1330 Unit 5 Lab Report

    • 1050 Words
    • 5 Pages

    Figure 8 shows the variable step input (Speed) and the motor actual output speed after using PID controller…

    • 1050 Words
    • 5 Pages
    Powerful Essays
  • Good Essays

    Electrical - Vfd

    • 1934 Words
    • 8 Pages

    When applied properly, the variable frequency drive (VFD) is the most effective motor controller in the industry today. Modern VFDs are affordable and reliable, have flexibility of control, and offer significant electrical energy savings through greatly reduced electric bills.…

    • 1934 Words
    • 8 Pages
    Good Essays
  • Good Essays

    PID controller

    • 1030 Words
    • 6 Pages

    PID Controller Tuning: A Short Tutorial Jinghua Zhong Mechanical Engineering, Purdue University Spring, 2006 Outline This tutorial is in PDF format with navigational control. You may press SPACE or →, or click the buttons in the lower right corner to move to the next slide. Clicking on the outlined items will take you directly to that section.…

    • 1030 Words
    • 6 Pages
    Good Essays
  • Powerful Essays

    Fuzzy Logic

    • 2457 Words
    • 10 Pages

    Fuzzy logic was developed by Lotfi A. Zadeh in the 1960s in order to provide mathematical rules and functions which permitted natural language queries. Fuzzy logic provides a means of calculating intermediate values between absolute true and absolute false with resulting values ranging between 0.0 and 1.0. With fuzzy logic, it is possible to calculate the degree to which an item is a member. Fuzzy logic has rapidly become one of the most successful of today's technologies for developing sophisticated control systems. The reason for which is very simple. Fuzzy logic addresses such applications perfectly as it resembles human decision making with an ability to generate precise solutions from certain or approximate information. It fills an important gap in engineering design methods left vacant by purely mathematical approaches (e.g. linear control design), and purely logic-based approaches (e.g. expert systems) in system design. While other approaches require accurate equations to model real-world behaviours, fuzzy design can accommodate the ambiguities of real-world human language and logic. It provides both an intuitive method for describing systems in human terms and automates the conversion of those system specifications into effective models.…

    • 2457 Words
    • 10 Pages
    Powerful Essays
  • Satisfactory Essays

    The purpose of this report is to elaborate the achievements in Programmble Logic Controllers as well as their implementation in the current engineering world.…

    • 433 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    Fuzzy Logic

    • 2783 Words
    • 12 Pages

    Yager, Ronald R.; Filev, Dimitar P. (1994). Essentials of fuzzy modeling and control. New York: Wiley. ISBN 0-471-01761-2.…

    • 2783 Words
    • 12 Pages
    Powerful Essays
  • Powerful Essays

    In this paper, structure of electric vehicles is initially reviewed. Then electric vehicles propulsion system which consists of energy storage system, power electronic system and electric motor is reviewed in detail. Besides, performance of electric vehicles and advantages and disadvantages of this technology are also discussed.…

    • 2746 Words
    • 9 Pages
    Powerful Essays
  • Good Essays

    Circuit breaker case study

    • 4770 Words
    • 20 Pages

    In this assignment, we are assign to construct a 2 button type Ac motor control system. The 2 type button means that there are only 2 buttons which is the stop button and the forward button. The successful build the whole system, a few component are very critical in this system.…

    • 4770 Words
    • 20 Pages
    Good Essays
  • Satisfactory Essays

    Adaptive Cruise Control

    • 452 Words
    • 2 Pages

    A SEMINAR REPORT ON “ADAPTIVE CRUISE CONTROL” SUBMITTED BY SUNIL BHANUDAS MATE Exam Seat NO.:T3270853 Roll No.:51 Under the guidance of: Prof.:S.N.PALHE [pic] DEPARTMENT OF MECHANICAL ENGINEERING SIR VISVESVARAYA MEMORIAL ENGINEERING COLLEGE CHINCHOLI, NASHIK 422101 2008-2009 [pic] PRAVARA RURAL EDUCATION SOCIETY’S [pic] Sir Visvesvaraya Memorial Engineering College Affiliated to University Of Pune Department of Mechanical Engineering [pic]…

    • 452 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    Department of Automation, Tsinghua University, Beijing 100084, China; † Faculty of Science and Technology, University of Macau, Macau, China Abstract: An on-line method was developed to improve diagnostic accuracy and speed for analyzing running motors on site. On-line pre-measured data was used as the basis for constructing the membership functions used in a fuzzy neural network (FNN) as well as for network training to reduce the effects of various static factors, such as unbalanced input power and asymmetrical motor alignment, to increase accuracy. The preprocessed data and fuzzy logic were used to find the nonlinear mapping relationships between the data and the conclusions. The FNN was then constructed to carry motor fault diagnostics, which gives fast accurate diagnostics. The on-line fast motor fault diagnostics clearly indicate the fault type, location, and severity in running motors. This approach can also be extended to other applications. Key words: fault detection and isolation; gravity-average method; supervisory learning; fuzzy neural networks…

    • 3715 Words
    • 15 Pages
    Powerful Essays
  • Powerful Essays

    Fuzzy Control Systems

    • 9487 Words
    • 38 Pages

    Fuzzy control is a practical alternative for a variety of challenging control applicationssince it provides a convenient method for constructing nonlinear controllersvia the use of heuristic information. In a sense fuzzy systems can be “trained” and can “learn” how to perform throughout a control task and are considered as intelligent control system.…

    • 9487 Words
    • 38 Pages
    Powerful Essays
  • Good Essays

    Belbic

    • 4815 Words
    • 20 Pages

    In this paper, an intelligent controller is applied to govern the dynamics of electrically heated micro-heat exchanger plant. First, the…

    • 4815 Words
    • 20 Pages
    Good Essays
  • Better Essays

    large scale control process and control systems (Sugeno et al.,1993). Fuzzy logic is the most prominent approach for systems involving nonlinearities and lack of analytical models. The main advantage of this approach is that incorporates in advance qualitative information about the system behavior. Fuzzy logic is indispensable for the analysis of systems whose sharp representation with mathematical models is poor (Pappis et al., 2000). In this study fuzzy logic is used to detect the forest roads on the generated DTM of the study area and the input data we have is the elevation of each location. The forest road borders are not sharp and there is an uncertainty that makes difficult to assign crisp values to DTM cells based on their road membership (elevation differences between road and non-road locations are…

    • 1312 Words
    • 6 Pages
    Better Essays
  • Powerful Essays

    Expert Systems

    • 1372 Words
    • 6 Pages

    and Gas. The development of the controller begins with; 1. Identification of an artificial neural network (ANN) model of the process 2. Designing of an initial fuzzy controller through genetic learning using neural network model. 3. Applicability of evolutionary computing techniques for real-time adaptation of the fuzzy controller II. PROPOSED ADAPTIVE CONTROL ARCHITECTURE In the proposed adaptive control architecture consist of four main components 1. Fixed fuzzy logic controller 2. Variable fuzzy logic controller 3. Evolutionary tuner 4. Online neural network model of the controller process It emphasized that fixed fuzzy logic control is designed for offline and parameters are kept fixed. The variable controllers are allowed to change the parameters which can adopt for different working conditions. The evolutionary tuner executes the adaptive process. At the each step GA will apply to search for better parameter set. Fitness of the parameter will produces through genetic operation. The parameters of the variable fuzzy controller are replaces with those found by genetic search, if they better fit for the current control task than the existing parameters.…

    • 1372 Words
    • 6 Pages
    Powerful Essays