The book explores all types of modern and widely used engines and drives, including conventional dc without brushes, induction motors and servo motors, providing readers with the knowledge to select the appropriate technology for a particular function. The electric motor operation is based on the following points. Other motors that are included are 1phase induction motors. Electric motors and drives fundamentals, types and applications third edition austin hughes senior fellow, school of electronic and electrical engineering, university of leeds amsterdam boston heidelberg london new york oxford paris san diego san francisco singapore sydney tokyo newnes is an imprint of. We all know what electricity is, or at least have a rough. Plugin hybrid electric vehicles can be categorized by the way they manage their gasoline and electricity. Electric motors and drives fundamentals types and applications about the book. Each has its own operating characteristics and advantages. In the late 1800s the actual invention of the alternating current motor was made by nikola tesla, a serb who had migrated to.
Electric motors and drives fundamentals, types and applications, 4th ed. Finally, a comparison between different motors is presented. Mechanical energy what is an electric motor an electric motor is a device converting electrical energy into mechanical energy usually a torque. Backed by 150 years of experience, simotics motors are unrivaled when it comes to reliability, ruggedness, compactness, efficiency, and performance.
In order to fully understand the ac motor, we must first examine the fundamentals of alternating current. Fundamentals, types and applications, fifth edition is intended primarily for nonspecialist users or students of electric motors and drives, but many researchers and specialist industrialists have also acknowledged its value in providing a clear understanding of the fundamentals. It produces the forces necessary for the motor to run. As discussed earlier, in a bldc motor, the torque remains constant for a speed range up to the rated speed. Fundamentals of electric motor design course outline i. The ac induction motor is the most used electrical motor in industrial applications worldwide. Unit 1 basic principles of motor controls when beginning this study of basic motor controls. Ac motors are electric motors that rotate by using power from a commercial ac power supply. Fundamentals of electric motors water energy toolkit. This final thesis will mostly be dedicated to induction motors but also to synchronous permanent magnet and reluctance motors. A plugin hybrid electric vehicle is a vehicle that uses both gasoline stored in a gas tank and electricity stored in a battery.
The concept of electricity is both familiar and mysterious. During continuous operations, the motor can be loaded up to the rated torque. Participants will learn about electromagnetism, rotating fields, induction machines and synchronous electrical machines. Rotor the rotor is made up of several thin steel laminations. It bridges the gap between specialist textbooks too analytical for the average user.
In order to understand even the simplest concepts of electronics, you must first understand what electricity is. Rotates a number of degrees with each electric pulse. There are two types of induction motors, one with wound type rotor, also called slipring motor and another one with squirrelcage rotor. An electric motor converts electrical power to mechanical power. Where e is the electric field, f is the force exerted on a particle introduced into the field and q is the charge of the particle. The basic principles of electromagnetic induction were discovered in the early 1800s by oersted, gauss and faraday, and this combination of scandinavian, german and english thought gave us the fundamentals for the electric motor. Kirk armintor senior account sales engineer rockwell automation the woodlands, texas electrical system mechanical system coupling field e, i t, w. Spring 2004 generic electric motor below figure shows cartoon of induction motor. Fundamentals, types and applications by austin hughes, william drury book free download. Practical electric motor handbook pdf by irving m gottlieb. This course introduces the fundamental principles of electrical motors. When a motor fails to start or stop at the desired time, the technician will be called upon to determine the problem and then resolve it.
Motor protection fundamentals ali kazemi, pe regional technical manager schweitzer engineering laboratories irvine, ca motor protection agenda motor basics protection requirements thermal short circuit special consideration high inertia motor starting vfd application. An introduction to electric motors stmicroelectronics. This module will cover the fundamentals of electricity in a practical way, and will not be complicated by complex theory and mathematical calculations. Feb 20, 20 electric motors and drives is intended for nonspecialist users of electric motors and drives, filling the gap between maths and theorybased academic textbooks and the more prosaic handbooks, which provide useful detail but little opportunity for the development of real insight and understanding. Pdf electric motors and drives fundamentals, types and. The phase relation between the rotor and stator magnetic field i. Magnetism is the force used by motors to create rotation induced magnetism on what principle does it operate. Fundamentals of electric motors and transformers rajib mikail lecturer department of electrical and electronic engineering bangladesh university of engineering and technology dhaka email. Write equations of motion referred to the motor shaft. Learn the basics of electromagnetic induction, motor selection criteria and proper maintenance techniques. Electric current refers to the flow of the electric charge carried by electrons as they jump from atom to atom.
Download electric motors and drives fundamentals types and. An electric motor has a linear t characteristic given by t to dml, referred to the load. An ac motor of this type may be part of a pump or fan or. Fundamentals of electric motors electric motor physical. A motor is one part of a machine system, and there are three areas of concern we must address.
Rotor the rotor is made up of several thin steel laminations with evenly spaced bars, which are made up of aluminum or copper, along the periphery. Solution the mechanical power supplied to the load is 1 min 2 rad 60 n m 1800 rmin 11,310 w 60 s 1 r p. Brushed dc motor fundamentals microchip technology. May 21, 2019 a motor is one part of a machine system, and there are three areas of concern we must address. Electric motor fundamentals free online training program this is a free online training program aiming to enhance your motor knowledge. An electric motor has a linear t characteristic given by t to.
Electric motors are generally divided into dc and ac induction types. This conversion is usually obtained through the generation of a magnetic field by means of a current flowing into one or more coils. Simotics industrial electric motors provide you with the optimum solution for every application. Typical motor technical specification for a complete list of parameters. Rather than motor design, their chief concerns lie with the selection, system installation, operation and performance evaluation of. A parallel hybrid uses both a combustion engine and an electric motor to deliver power to the wheels. Segment 2 electric motors and generators introduction to dc and ac motors and generators. This reading is a very brief introduction to four most basic types of electric motors. The beginnings of the electric motor are shrouded in mystery, but this much seems clear. Fundamentals of electric motor design about the course developed for those involved in the design, application, testing or manufacturing of motors this course will provide a better understanding of electric motor selection, mechanics and performance. At least one of the two magnetic field is generated by a solenoid carrying a current.
At least one of the two magnetic field is generated by a solenoid. Rahman dc motor characteristics july, 2017 inertia of the gear wheels are negligible. An905 ds00905bpage 2 2010 microchip technology inc. The book deals with the fundamentals, theory, and design of conventional cars with internal combustion engines ices, electric vehicles evs, hybrid electric vehicles hevs, and fuel cell vehicles fcvs. The explanations should be as simple as possible, enabling a nonengineer to understand them. A basic rule of thumb is that in an ac motor, as in an ac generator used for industrial power production, the magnet is on the rotor and the current 1. The fundamentals of ac electric induction motor design and application by edward j. Basic principles and equations governing the operation and performance of electric motors.
Magnetism is the basis for all electric motor operation. Understanding the basic principles of how motors are controlled provides the basis for being able to analyze the specific motor control circuit and determine the fault. A subsidiary of regalbeloit corporation with leeson. The goal the goal of this free online program is to provide. Electric motors and drives is intended for non specialist users of electric motors and drives, filling the gap between maths and theory based academic textbooks and the more prosaic handbooks, which provide useful detail but little opportunity for the development of real insight and understanding. The quality factor or q factor of a capacitor, represents the efficiency of a given capacitor in terms of its energy. It comprehensively presents vehicle performance, configuration, control strategy, design. Electric power bill calculation in residential, commercial and industrial arena. After all, the whole purpose of electronics is to get electricity to do useful and interesting things. Tutorial 1 drive fundamentals and dc motor characteristics. An887 ds00887apage 2 2003 microchip technology inc.
Electric motor fundamentals free online training program. Like generators, electric motors consist of a stator and a rotor and the three ingredients. Static electric motor testing looks at the motors insulation system, while online or dynamic electric motor monitoring can identify issues regarding power quality and. This book, therefore, targets the large body of workers engineers and students reasonably versed in engineering concepts who feel the need for practical insights relating to electric motors. The book explores all of the widelyused modern types of motor and drive, including. They are easy to handle and have features that can be con. Senior fellow, school of electronic and electrical engineering. Electric motors and drives is intended for nonspecialist users of electric motors and drives, filling the gap between maths and theorybased academic textbooks and the more prosaic handbooks, which provide useful detail but little opportunity for the development of real insight and understanding. When you turn on a light switch, electric current flows from the switch through the wire to the light, and the room is instantly illuminated. Abb training abb service for motors and generators. The unit for electric field is volts per meter vm1 or newtons per coulomb nc1. If the motors shaft is turning at 1800 rmin, what is the mechanical power supplied to the load in watts.
There are many types of ac motors, but this course focuses on threephase induction motors, the most common type of motor used in industrial applications. Ac motors are used worldwide in many applications to transform electrical energy into mechanical energy. Brushes and commutator unlike other electric motor types i. Basic electrical power fundamentals 46 kva is larger than kw because loads are inductive such as motors, discharge lighting, reactors and more current is required to keep the magnetic field energized than is turned into heat kw. The use of these two forms of power varies from vehicle to vehicle.
584 338 1466 78 1304 637 821 1009 360 1326 1182 291 859 1139 1504 712 845 1051 166 257 991 106 171 49 392 370 959 1287 449 136 1281 1060 1488 1006 192 912