In the system proposed shown in Figure 1.5, the most important parameters to be controlled is the speed of the DC motor. The speed of the DC motor is defined as [5]:
EMBED (1.1)
Where N = Speed V = Supply voltage Ia = Armature current Ra = Armature resistance ( = Magnetic flux
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In reality, the flux and Ra are hard to control. The only parameter that can adjust is the voltage V. As V is increased, the speed of the DC motor also increased. Thus, the speed of the DC motor is directly proportional to the supply voltage, V but inversely proportional to the magnetic flux, (. The Ia is an armature current where it is come from induction. When the magnetic fields
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The shunt field is produced by a coil which having high number of turns. The generation of magnetic field is governed by Biosavart Law [7]. A more detail about this motor operation and internal structures can be seen in chapter 2.
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Besides knowing the controlled parameters of the DC motor, one should know the controller as well. The controller can a programmable controller or none programmable controller. The programmable controller refers to microcontroller, processor or any electric control module that can be programmed. The none programmable controller is a pure electric circuit designed to perform a specific task. Compare the two controllers, programmable controller is more suitable used in the fuzzy logic. This is because the programmable controller has a flexible programming. Programmers can changes the program or configure the program any time they like. Unlike the none programmable controller, there is no way to change the task performed by the controller, unless the circuit is changed or redesign the circuit to meet a new
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Once the temperature is drops and back to normal, the DC motor will start running automatically. Compare with potentiometer or manual control, the DC motor may damage if overheat is happen. Thus, manual control of DC motor has no secure in operation.
1.2 Objectives
The objectives of the project are:
1. To design and implement a Fuzzy logic controller that can control the speed of a DC motor using MATLAB
2. To analyze the performance of DC motor with and without using Fuzzy logic in MATLAB
3. To analyze the simulation results using MATLAB on the changed of parameters of the DC motor.
1.3 Scope of the Research
To implement the Fuzzy logic control the speed of a DC motor, there are few areas have to focus. These areas are:
( Fuzzy logic implementation using MATLAB
( Block diagram design in Simulink
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Fuzzy logic is a main concern in this research. It will spend more time to study this and fully understand before it can be implemented in MATLAB environment. To understand the fuzzy logic basic concept, a resource is needed. The resource can come from internet or from the
With a little stretching, the average physics student should be able to comprehend the principles of magnetic levitation and propulsion through synchronous linear motors. To facilitate the process of understanding this complex material, we suggest that the student go through this web site in order. Make sure you understand the basic physics before moving on to the page which applies these principles to magnetically levitated vehicles.
The exact workings of different brushless DC motors depend on the type of timing device used. This example uses a Reed switch.
A maglev system is nonlinear and its open-loop response is unstable because of the nature of the magnetic forces used. PI controllers are based on a linearized model, so they do not compensate for certain variations. These variations can occur when a magnetic bearing experiences a working load change on the rotor during operation, ...
Key Words; Artificial Intelligence, Multiple Intelligence, Fuzzy Logic, Fuzzy Logic Toolbox, Vocational Guidance, Decision Making
...nduced in a conductor moving at right angles to and cutting across a magnetic flux. On the other hand, magnet is a useful in our daily life such as it can hold some documents and use to move an object. For example, a bicycle dynamo is a small generator fitted by bicycle to provide electricity for the lights bulb, it using the principle of electromagnetism. There are 2 law of electromagnetic induction such as Faraday’s Law and Lenz’s Law. In the other hand, Lenz’s Law state that induced current always flows in such a direction so as to opposite the change causing it. When north pole is approach the solenoid, the front part of solenoid will creates a north pole to produce a force of repulsion to oppose the change of motion. And the direction of current in the solenoid can determined by Right-hand Grip Rule. Lenz’s Law also is a form of law of conservation of energy.
The initial values used for the parameters were: r1= r2=0,1 ; N1=N2= 50 ; K1=K2= 100 ; α12= 0,5 ; α21= 0
This involves relating the current supplied to the motor, motor shaft rotational speed, motor efficiency, and the power factor as a function of the load of the motor, similar to the figure on page 21 of the Lab Manual.
To demonstrate the diesel cycle and to study the working processes of four stroke & two strokes Diesel engine.
Have you ever walked into a room, turned on a light, and wondered, “Who gave us the ability to do this?” Nikola Tesla is the man’s name. He invented Alternating Current, or AC, which is the electrical system that we use to power our world today. In this paper, I will be describing a few of Nikola Tesla’s innovations and how they inspired and impacted our way of life.
The sequential gearbox is a very interesting twist on a manual transmission. It dates back to the early 20th century; used mostly on motorcycles and other off road equipment during the World Wars (Italia, 1993). Since then this transmission has exploded into not only the racing world but also the passenger car world (Immell, 1994). Sequential gearboxes have numerous advantages over a standard manual transmission. To further understand the concept of a sequential gearbox one must know the basics of how a transmission works, and then can fully understand the advantages of a sequential gearbox.
To simplify the calculation in control system design, it is common to use first order approach and assume the system to be linear. To realize this project, the matematical model of 3-phase BLDC motor system being used is needed.
The development of the manufacturing industry, quality and control, manufacturing capacity increase or the duration and the need to reduce cost has arisen is inevitable. Thus automation and programming concepts were started years ago. Automation is a machine's operative procedures and their sequence start form beginnig to end without human intervention, and its done automatically. Programming of the sequence of operations is prerared and tranfered to the counter. A bench during the operation of the program, and in the process, this will provide for amendments to the alignment and speed, then the counter is called flexibility.
Today the technological world has developed and has continued to innovate to provide an easier lifestyle. This is the main focus of automation. Automation has gained more recognition from people in the business and industrial sectors. The purpose of this report is to discuss and inform the overview knowledge in the automation field. “Automation is the system of manufacture designed to extend the capacity of machines to perform certain tasks formerly done by humans, and to control sequences of operations without human intervention” (Funk & Wagnalls New World Encyclopedia, 2017, p. 1). Humans are capable of such incredible things and have improved throughout time even develop automated technology to do those tasks. Automation and the technology
The equations of motion form the basic building blocks for any system under consideration. These equations should be formulated as accurately as possible to model the desired system. The δinaccuracies in formulating these equations could result in faulty behaviour of the system which could be very difficult to understand. However, modern control systems are designed to accommodate model inaccuracies to a certain degree. It is very important to ensure that our model is modelled within this range. Errors could also enter the system during the calculation stage due to the precision and number of digits used to represent the values.
...placing a soft metal core (commonly an iron alloy) inside a coil of wire through which electric current passes in order to produce a magnetic field. The strength and polarity of the magnetic field changes depending on the magnitude of the current flowing through the wire and the direction of the current flow. While there is sufficient flow of current, the core behaves like a magnet; however, as soon as the current stops, the magnetic properties also disappear. Modern devices that make use of electromagnets are the televisions, telephones, computers and electric motors.