LECTURE 19 WIND POWER SYSTEMS. ECE 371 Sustainable Energy Systems
|
|
- Stella Terry
- 6 years ago
- Views:
Transcription
1 LECTURE 19 WIND POWER SYSTEMS ECE 371 Sustainable Energy Systems 1
2 GENERATORS Blades convert the wind kinetic energy to a shaft power to spin a generator and produce electricity A generator has two parts Stator stationary part Rotor rotating part Small battery-charging WTGs use dc generators WTG = Wind Turbine Generator. Large grid-connected WTGs use ac generators 2
3 GENERATORS Maximum efficiency point for rotors should be matched to the windspeed For optimal operation Maximum wind energy capture Since windspeed varies, rotor speed should be changed for maximum efficiency 3
4 GENERATORS The way to categorize a wind energy system by Rotor rotates at a fixed speed Rotor rotates at a variable speed A fixed-speed WTG is Simple Least-cost approach Inefficient High mechanical stress 4
5 GENERATORS As far as ac generators are concerned, the choice is limited to: Synchronous Generators Produce all the power in power plants Asynchronous Generators Power production is limited to special situations Wind power generation is an example 5
6 SYNCHRONOUS GENERATORS Synchronous generators Rotor should turn at a precise speed that is a function of number of poles and frequency Need dc voltage for the rotor AC to DC rectification necessary Exciter Need slip rings and brushes to get the dc voltage to rotor winding Replacing the brushes and cleaning slip rings adds to the maintenance effort 6
7 ASYNCHRONOUS GENERATORS They are induction generators Most wind turbines use them Induction machines do not turn at a fixed speed The name asynchronous comes from this fact As generators they are not commonly used in conventional power plants As motors they consume 1/3 of the generated power worldwide 7
8 ASYNCHRONOUS GENERATORS Both modes of operation take place in wind turbines Motor during start-up Generator as wind picks-up Induction machines do not require Exciters Brushes Slip rings 8
9 ASYNCHRONOUS Induction machines are Less complicated Less expensive GENERATORS Require less maintenance Smaller in size More forgiving in terms of stresses during wind gust conditions The synchronous speed of the magnetic field inside the machine is N s = 120f/p, but the rotor speed is different 9
10 ASYNCHRONOUS GENERATORS There are two categories of induction machines Wound rotor induction generator (WRIG) Squirrel-Cage induction generators (SCIG) 10
11 SQUIRREL-CAGE INDUCTION GENERATORS 11
12 SQUIRREL-CAGE INDUCTION GENERATORS When the shaft is connected to wind turbine blades and stator is provided with three-phase excitation (from the grid or capacitors) The machine will start operation by motoring up toward its synchronous speed When wind speed exceeds the threshold that spins the shaft above synchronous speed, it becomes a three-phase generator 12
13 SQUIRREL-CAGE INDUCTION GENERATORS The rotor of an induction motor turns at N R which is slower than N S The difference in this speed is called slip speed Slip Speed = N S - N R The slip speed divided by the synchronous speed is called slip, which is dimensionless s = (N S N R )/N S 13
14 SQUIRREL-CAGE INDUCTION GENERATORS For the grid-connected induction machines, the slip is ± 1% (1782 to 1818 rpm) If the gear ratio is 100:1, then the rotor that is connected to blades turn at about 18 rpm This speed can be changed to about 12 rpm by changing the number of poles from 4 to 6 remotely 14
15 DOUBLY-FED INDUCTION GENERATORS One of the more advanced WTGs is based on the concept of doubly-fed induction generator (DFIG) It uses a wound rotor induction generator The stator part of the DFIG is conventional The rotor is designed to allow bidirectional power flow from and to the grid 15
16 DOUBLY-FED INDUCTION GENERATORS 16
17 DOUBLY-FED INDUCTION GENERATORS When the rotor spins at sub-synchronous speeds, the rotor receives power from the grid When the rotor spins at super-synchronous speeds, the rotor provides power to the grid The usual range of speed control is 40% below to 20% above synchronous speed 17
18 DOUBLY-FED INDUCTION GENERATORS DFIG uses a small converter that is rated about 30% of the turbine-generator capacity 18
19 VARIABLE-SPEED SYNCHRONOUS GENERATOR To gain complete control of the speed a fullcapacity converter is needed 19
20 POWER IN WIND The kinetic energy of a mass (m) moving at a velocity (v) is 20
21 POWER IN WIND Since power is energy per unit time Where ρ is air density 21
22 POWER IN WIND Power Density Start Rated 22
23 POWER IN WIND Therefore, the produced power is a function of Air density, ρ = kg/m 3 at 15 o C and 1 atm Swept area of turbine rotor, A= (π/4) D 2 in m 2 Wind velocity, v in m/s Doubling the windspeed increases power by 8 fold Doubling the diameter increases power by a factor of 4 The cost of turbine increases in proportion to rotor diameter Big wind turbines are more economical. 23
24 POWER IN WIND In wind power calculations, we just cannot use the average wind speed The relationship between power and windspeed is nonlinear MathCAD Example 24
25 25
26 26
27 27
28 NREL NREL has a website that wind maps and downloadable wind databases. For wind maps, see 28
29 30 m US Windmap 29
30 30
31 Windspeed Data Windspeed from NREL can be downloaded from Dt&bL=groad&cE=0&lR=0&mC= % 2C &zL=4 31
32 Wind Prospector 32
33 Wind Data for Terre Haute (2012) 33
Module 3: Types of Wind Energy Systems
Module 3: Types of Wind Energy Systems Mohamed A. El-Sharkawi Department of Electrical Engineering University of Washington Seattle, WA 98195 http://smartenergylab.com Email: elsharkawi@ee.washington.edu
More informationRenewable Energy Systems 13
Renewable Energy Systems 13 Buchla, Kissell, Floyd Chapter Outline Generators 13 Buchla, Kissell, Floyd 13-1 MAGNETISM AND ELECTROMAGNETISM 13-2 DC GENERATORS 13-3 AC SYNCHRONOUS GENERATORS 13-4 AC INDUCTION
More informationEE 742 Chap. 7: Wind Power Generation. Y. Baghzouz
EE 742 Chap. 7: Wind Power Generation Y. Baghzouz Wind Energy 101: See Video Link Below http://energy.gov/eere/videos/energy-101- wind-turbines-2014-update Wind Power Inland and Offshore Growth in Wind
More informationBrochure. Wind turbine generators Reliable technology for all turbine applications
Brochure Wind turbine generators Reliable technology for all turbine applications 2 ABB Wind turbine generators We provide motors and generators, services and expertise to save energy and improve customers
More informationEE 742 Chap. 7: Wind Power Generation. Y. Baghzouz Fall 2011
EE 742 Chap. 7: Wind Power Generation Y. Baghzouz Fall 2011 Overview Environmental pressures have led many countries to set ambitious goals of renewable energy generation. Wind energy is the dominant renewable
More informationCHAPTER 4 MODELING OF PERMANENT MAGNET SYNCHRONOUS GENERATOR BASED WIND ENERGY CONVERSION SYSTEM
47 CHAPTER 4 MODELING OF PERMANENT MAGNET SYNCHRONOUS GENERATOR BASED WIND ENERGY CONVERSION SYSTEM 4.1 INTRODUCTION Wind energy has been the subject of much recent research and development. The only negative
More informationDoubly fed electric machine
Doubly fed electric machine Doubly fed electric machines are electric motors or electric generators that have windings on both stationary and rotating parts, where both windings transfer significant power
More information4 Wikipedia picture. Brushed DC-Machine. The 4 Quadrants. DC-motor torque characteristics. Brushless DC-Motor. Synchronous AC machines
Vehicle Propulsion Systems Lecture 5 Hybrid Powertrains Part 2 Component Modeling Lars Eriksson Associate Professor (Docent) Vehicular Systems Linköping University November 5, 21 Energy consumption for
More informationWorkshop on Grid Integration of Variable Renewable Energy: Part 1
Workshop on Grid Integration of Variable Renewable Energy: Part 1 System Impact Studies March 13, 2018 Agenda Introduction Methodology Introduction to Generators 2 Introduction All new generators have
More informationANALYSIS OF WIND AND PV SYSTEMS 4.1 Wind Energy Conversion Systems (WECS)
ANALYSIS OF WIND AND PV SYSTEMS 4.1 Wind Energy Conversion Systems (WECS) A wind energy conversion system (WECS) is composed of blades, an electric generator, a power electronic converter, and a control
More informationLow Speed Wind Turbines. Current Applications and Technology Development
Low Speed Wind Turbines Current Applications and Technology Development Why low wind speed turbines? Easily accessible prime class 6 sites are disappearing. Many class 6 sites are located in remote areas
More informationModeling, Simulation & Control of Induction Generators Used in Wind Energy Conversion
Chapter-3 Principles of Electrical Energy Conversion 3. 1 Introduction Several forms of energy can be converted into electrical energy basically by two methods known as direct or indirect conversion. In
More informationCHAPTER 5 FAULT AND HARMONIC ANALYSIS USING PV ARRAY BASED STATCOM
106 CHAPTER 5 FAULT AND HARMONIC ANALYSIS USING PV ARRAY BASED STATCOM 5.1 INTRODUCTION Inherent characteristics of renewable energy resources cause technical issues not encountered with conventional thermal,
More informationAC MOTOR TYPES. DESCRIBE how torque is produced in a single-phase AC motor. EXPLAIN why an AC synchronous motor does not have starting torque.
Various types of AC motors are used for specific applications. By matching the type of motor to the appropriate application, increased equipment performance can be obtained. EO 1.5 EO 1.6 EO 1.7 EO 1.8
More informationPossibilities of Distributed Generation Simulations Using by MATLAB
Possibilities of Distributed Generation Simulations Using by MATLAB Martin Kanálik, František Lizák ABSTRACT Distributed sources such as wind generators are becoming very imported part of power system
More informationGOLDWIND 2.5MW PERMANENT MAGNET DIRECT-DRIVE (PMDD) WIND TURBINE
Rotor Blade Rotor/Generator Bearing Cast Hub Auxiliary Crane Wind Measurement Equipment Pitch System Heat Exchanger Yaw System Base Frame PMDD Generator GOLDWIND 2.5MW PERMANENT MAGNET DIRECT-DRIVE (PMDD)
More informationPrinciples of Doubly-Fed Induction Generators (DFIG)
Renewable Energy Principles of Doubly-Fed Induction Generators (DFIG) Courseware Sample 86376-F0 A RENEWABLE ENERGY PRINCIPLES OF DOUBLY-FED INDUCTION GENERATORS (DFIG) Courseware Sample by the staff
More informationElectrical Machines II. Week 5-6: Induction Motor Construction, theory of operation, rotating magnetic field and equivalent circuit
Electrical Machines II Week 5-6: Induction Motor Construction, theory of operation, rotating magnetic field and equivalent circuit Asynchronous (Induction) Motor: industrial construction Two types of induction
More informationThe Wound-Rotor Induction Motor Part I
Experiment 1 The Wound-Rotor Induction Motor Part I OBJECTIVE To examine the construction of the three-phase wound-rotor induction motor. To understand exciting current, synchronous speed and slip in a
More informationMatlab Modeling and Simulation of Grid Connected Wind Power Generation Using Doubly Fed Induction Generator
ISSN (e): 2250 3005 Vol, 04 Issue, 7 July 2014 International Journal of Computational Engineering Research (IJCER) Matlab Modeling and Simulation of Grid Connected Wind Power Generation Using Doubly Fed
More informationPretest Module 21 Units 1-3 AC Generators & Three-Phase Motors
Pretest Module 21 Units 1-3 AC Generators & Three-Phase Motors 1. What are the two main parts of a three-phase 2. Which part of a three-phase squirrel-cage induction motor is a hollow core? 3. What are
More informationA Performance of the Grid Connected Permanent Magnet Synchronous Generator
A Performance of the Grid Connected Permanent Magnet Synchronous Generator Nirmal R Parmar 1, Prof. Surya Prakash Singh 1 M.E. Electrical Engineering Atmiya Institute of Technology & Science, Rajkot nirmal_7eee@yahoo.in
More informationFrequency Control of Isolated Network with Wind and Diesel Generators by Using Frequency Regulator
Frequency Control of Isolated Network with Wind and Diesel Generators by Using Frequency Regulator Dr.Meenakshi mataray,ap Department of Electrical Engineering Inderprastha Engineering college (IPEC) Abstract
More informationSTUDY ON MAXIMUM POWER EXTRACTION CONTROL FOR PMSG BASED WIND ENERGY CONVERSION SYSTEM
STUDY ON MAXIMUM POWER EXTRACTION CONTROL FOR PMSG BASED WIND ENERGY CONVERSION SYSTEM Ms. Dipali A. Umak 1, Ms. Trupti S. Thakare 2, Prof. R. K. Kirpane 3 1 Student (BE), Dept. of EE, DES s COET, Maharashtra,
More informationStarting of Induction Motors
1- Star Delta Starter The method achieved low starting current by first connecting the stator winding in star configuration, and then after the motor reaches a certain speed, throw switch changes the winding
More informationDFIG Wind Turbine Modeling
DFIG Wind Turbine Modeling Team Power Team Drew McKinnon Cody Swisher Tiras Newman Andy Miles Professors: Dr. Herbert Hess Dr. Brian Johnson Dr. Feng Li Sponsor: SEL Dr. Normann Fishcher Student Mentors:
More information9. Examples of hydro energy conversion
9. Examples of hydro energy conversion VATech Hydro, Austria Prof. A. Binder 9/1 Variable speed pump storage power plant Prof. A. Binder 9/2 Conventional pump storage power plant with synchronous motor-generators
More informationCHAPTER 6 DESIGN AND DEVELOPMENT OF DOUBLE WINDING INDUCTION GENERATOR
100 CHAPTER 6 DESIGN AND DEVELOPMENT OF DOUBLE WINDING INDUCTION GENERATOR 6.1 INTRODUCTION Conventional energy resources are not sufficient to meet the increasing electrical power demand. The usages of
More informationFachpraktikum Elektrische Maschinen. Theory of Induction Machines
Fachpraktikum Elektrische Maschinen Theory of Induction Machines Prepared by Arda Tüysüz January 2013 Fundamentals Induction machines (also known as asynchronous machines) are by far the most common type
More informationEXPERIMENT 2 THREE PHASE INDUCTION MOTOR, PART 1
University f Jordan School of Engineering Department of Mechatronics Engineering Electrical Machines Lab Eng. Osama Fuad Eng. Nazmi Ashour EXPERIMENT 2 THREE PHASE INDUCTION MOTOR, PART 1 OBJECTIVES To
More informationWind Farm Evaluation and Control
International society of academic and industrial research www.isair.org IJARAS International Journal of Academic Research in Applied Science (2): 2-28, 202 ijaras.isair.org Wind Farm Evaluation and Control
More informationWind Generation and its Grid Conection
Wind Generation and its Grid Conection J.B. Ekanayake PhD, FIET, SMIEEE Department of Electrical and Electronic Eng., University of Peradeniya Content Wind turbine basics Wind generators Why variable speed?
More informationChapter 2 Literature Review
Chapter 2 Literature Review 2.1 Introduction Electrical power is the most widely used source of energy for our homes, workplaces, and industries. Population and industrial growth have led to significant
More informationAPPLICATION OF VARIABLE FREQUENCY TRANSFORMER (VFT) FOR INTEGRATION OF WIND ENERGY SYSTEM
APPLICATION OF VARIABLE FREQUENCY TRANSFORMER (VFT) FOR INTEGRATION OF WIND ENERGY SYSTEM A THESIS Submitted in partial fulfilment of the requirements for the award of the degree of DOCTOR OF PHILOSOPHY
More informationChristof Deckmyn DEVELOPING AND TESTING POWER CONTROL FOR A WIND POWER STATION MODEL
Christof Deckmyn DEVELOPING AND TESTING POWER CONTROL FOR A WIND POWER STATION MODEL Unit Technology and Communication 2011 VAASAN AMMATTIKORKEAKOULU UNIVERSITY OF APPLIED SCIENCES Master in Renewable
More informationPOWER QUALITY ISSUES IN WIND DIESEL HYBRID POWER GENERATION SYSTEMS
POWER QUALITY ISSUES IN WIND DIESEL HYBRID POWER GENERATION SYSTEMS BUNDA Ș. *University of Oradea, Universităţii no.1, Oradea, sbunda@uoradea.ro Abstract The purpose of this paper is to present main power
More informationReview on Grid-Connected Hybrid DFIG Based Wind and PV System
International Journal of Scientific Research in Computer Science, Engineering and Information Technology 2017 IJSRCSEIT Volume 2 Issue 1 ISSN : 2456-3307 Review on Grid-Connected Hybrid DFIG Based Wind
More informationECE1750, Spring Motor Drives and Other
ECE1750, Spring 2018 Motor Drives and Other Applications 1 Three-Phase Induction Motors Reliable Rugged Long lived Low maintenance Efficient (Source: EPRI Adjustable Speed Drives Application Guide) The
More informationEEE3441 Electrical Machines Department of Electrical Engineering. Lecture. Introduction to Electrical Machines
Department of Electrical Engineering Lecture Introduction to Electrical Machines 1 In this Lecture Induction motors and synchronous machines are introduced Production of rotating magnetic field Three-phase
More informationCONTROL AND PERFORMANCE OF A DOUBLY-FED INDUCTION MACHINE FOR WIND TURBINE SYSTEMS
CONTROL AND PERFORMANCE OF A DOUBLY-FED INDUCTION MACHINE FOR WIND TURBINE SYSTEMS Lucian Mihet-Popa "POLITEHNICA" University of Timisoara Blvd. V. Parvan nr.2, RO-300223Timisoara mihetz@yahoo.com Abstract.
More informationSquirrel cage induction generator based wind farm connected with a single power converter to a HVDC grid. Lluís Trilla PhD student
Squirrel cage induction generator based wind farm connected with a single power converter to a HVDC grid Lluís Trilla PhD student Current topology of wind farm Turbines are controlled individually Wind
More informationCHAPTER 5 ACTIVE AND REACTIVE POWER CONTROL OF DOUBLY FED INDUCTION GENERATOR WITH BACK TO BACK CONVERTER USING DIRECT POWER CONTROL
123 CHAPTER 5 ACTIVE AND REACTIVE POWER CONTROL OF DOUBLY FED INDUCTION GENERATOR WITH BACK TO BACK CONVERTER USING DIRECT POWER CONTROL 5.1 INTRODUCTION Wind energy generation has attracted much interest
More informationUnit 34 Single-Phase Motors
Unit 34 Single-Phase Motors Objectives: Unit 34 Single-Phase Motors List the different types of split-phase motors. Discuss the operation of split-phase motors. Reverse the direction of rotation of a splitphase
More informationDesign and Modelling of Induction Generator Wind power Systems by using MATLAB/SIMULINK
Design and Modelling of Induction Generator Wind power Systems by using MATLAB/SIMULINK G. Hima Bindu 1, Dr. P. Nagaraju Mandadi 2 PG Student [EPS], Dept. of EEE, Sree Vidyanikethan Engineering College,
More informationESO 210 Introduction to Electrical Engineering
ESO 210 Introduction to Electrical Engineering Lectures-37 Polyphase (3-phase) Induction Motor 2 Determination of Induction Machine Parameters Three tests are needed to determine the parameters in an induction
More informationA Variable Speed Wind Generation System Based on Doubly Fed Induction Generator
Buletin Teknik Elektro dan Informatika (Bulletin of Electrical Engineering and Informatics) Vol. 2, No. 4, December 2013, pp. 272~277 ISSN: 2089-3191 272 A Variable Speed Wind Generation System Based on
More informationPAC TRAINING PUMP MOTORS
PAC TRAINING PUMP MOTORS 1 Basics Magnet supported from above N S N S Since unlike poles repel each other, the magnet will rotate Stationary Magnet 2 Basics N S Stationary Magnet 3 Basics N N S S Stationary
More informationINDUCTION MOTOR. There is no physical electrical connection to the secondary winding, its current is induced
INDUCTION MOTOR INTRODUCTION An induction motor is an alternating current motor in which the primary winding on one member (usually the stator) is connected to the power source and a secondary winding
More informationAPGENCO/APTRANSCO Assistant Engineer Electrical Previous Question Papers Q.1 The two windings of a transformer is conductively linked. inductively linked. not linked at all. electrically linked. Q.2 A
More informationPretest Module 21 Units 1-4 AC Generators & Three-Phase Motors
Pretest Module 21 Units 1-4 AC Generators & Three-Phase Motors 1. What are the two main parts of a three-phase motor? Stator and Rotor 2. Which part of a three-phase squirrel-cage induction motor is a
More informationConverteam: St. Mouty, A. Mirzaïan FEMTO-ST: A. Berthon, D. Depernet, Ch. Espanet, F. Gustin
Permanent Magnet Design Solutions for Wind Turbine applications Converteam: St. Mouty, A. Mirzaïan FEMTO-ST: A. Berthon, D. Depernet, Ch. Espanet, F. Gustin Outlines 1. Description of high power electrical
More informationThree-Phase Induction Motor With Frequency Inverter
Objectives Experiment 9 Three-Phase Induction Motor With Frequency Inverter To be familiar with the 3-phase induction motor different configuration. To control the speed of the motor using a frequency
More informationLaboratory Tests, Modeling and the Study of a Small Doubly-Fed Induction Generator (DFIG) in Autonomous and Grid-Connected Scenarios
Trivent Publishing The Authors, 2016 Available online at http://trivent-publishing.eu/ Engineering and Industry Series Volume Power Systems, Energy Markets and Renewable Energy Sources in South-Eastern
More informationAnupam *1, Prof. S.U Kulkarni 2 1 ABSTRACT I. INTRODUCTION II. MODELLING OF WIND SPEED
2017 IJSRSET Volume 3 Issue 3 Print ISSN: 2395-1990 Online ISSN : 2394-4099 Themed Section: Engineering and Technology PMSG Based Wind Farm Analysis in ETAP Software Anupam *1, Prof. S.U Kulkarni 2 1 Department
More informationUnit III-Three Phase Induction Motor:
INTRODUCTION Unit III-Three Phase Induction Motor: The three phase induction motor runs on three phase AC supply. It is an ac motor. The power is transferred by means of induction. So it is also called
More informationECE 325 Electric Energy System Components 6 Three Phase Induction Motors. Instructor: Kai Sun Fall 2016
ECE 325 Electric Energy System Components 6 Three Phase Induction Motors Instructor: Kai Sun Fall 2016 1 Content (Materials are from Chapters 13-15) Components and basic principles Selection and application
More informationPermanent-magnet synchronous motors
Permanent-magnet synchronous motors Contents Product description 12/2 Overview of technical data 12/4 Motor selection data Series PE.. for Super Premium Efficiency IE4 1) 12/5 Series P, high-power motors
More informationVIII. Three-phase Induction Machines (Asynchronous Machines) Induction Machines
VIII. Three-phase Induction Machines (Asynchronous Machines) Induction Machines 1 Introduction Three-phase induction motors are the most common and frequently encountered machines in industry simple design,
More informationAsynchronous generators
Asynchronous generators Contents Product description 13/2 Overview of technical data 13/3 Motor selection data Series G4.R on the basis of Premium Efficiency IE3 13/4 Series GE.R on the basis of High Efficiency
More informationElectrical Machines and Energy Systems: Operating Principles (Part 3) SYED A RIZVI
Electrical Machines and Energy Systems: Operating Principles (Part 3) SYED A RIZVI Missing piece: The induced voltage in the stator windings, E S. The rotor s rotating magnetic field induces a voltage
More informationDOWNLOAD OR READ : THE INDUCTION MACHINES DESIGN HANDBOOK SECOND EDITION ELECTRIC POWER ENGINEERING SERIES PDF EBOOK EPUB MOBI
DOWNLOAD OR READ : THE INDUCTION MACHINES DESIGN HANDBOOK SECOND EDITION ELECTRIC POWER ENGINEERING SERIES PDF EBOOK EPUB MOBI Page 1 Page 2 the induction machines design pdf Download The Induction Machines
More informationDate: Name: ID: LABORATORY EXPERIMENT NO. 8 INDUCTION MOTOR/GENERATOR 8-1
Date: Name: ID: LABORATORY EXPERIMENT NO. 8 INDUCTION MOTOR/GENERATOR 8-1 OBJECT 1. To determine the general performance of a squirrel motors 2. To observe the characteristics of induction generators.
More informationDOUBLY-FED INDUCTION MACHINE IN WIND POWER GENERATION. Hector A. Pulgar-Painemal, Peter W. Sauer University of Illinois at Urbana-Champaign
DOUBLY-FED INDUCTION MACHINE IN WIND POWER GENERATION Hector A. Pulgar-Painemal, Peter W. Sauer University of Illinois at Urbana-Champaign Abstract: This paper presents the steady-state model of a variable-speed
More informationElectrical Machines and Energy Systems: Overview SYED A RIZVI
Electrical Machines and Energy Systems: Overview SYED A RIZVI Electrical Machines and Energy Systems Deal with the generation, transmission & distribution, and utilization of electric power. This course
More informationModelling and Design of a 3 kw Permanent Magnet Synchronous Generator suitable for Variable Speed Small Wind Turbines
Modelling and Design of a 3 kw Permanent Magnet Synchronous Generator suitable for Variable Speed Small Wind Turbines Acharya Parash 1,a, Papadakis Antonis 2, Shaikh Muhammad Naveed 3 1 Lecturer, Department
More informationSpecial Issue Published in International Journal of Trend in Research and Development (IJTRD), ISSN: ,
Hybrid Energy System of Offshore Wind and Tidal Energy with Power Quality Improvement Thamizhanban.M.C 1, Sathish Kumar.G.K 2, PG scholar 1, Asst Professor 2, Department of EEE, Arunai College of Engineering,
More informationMotor Basics AGSM 325 Motors vs Engines
Motor Basics AGSM 325 Motors vs Engines Motors convert electrical energy to mechanical energy. Engines convert chemical energy to mechanical energy. 1 Motors Advantages Low Initial Cost - $/Hp Simple &
More informationLab 6: Wind Turbine Generators
Lab 6: Wind Turbine Generators Name: Pre Lab Tip speed ratio: Tip speed ratio (TSR) is defined as: Ω, where Ω=angular velocity of wind, and R=radius of rotor (blade length). If the rotational speed of
More informationROTATING MAGNETIC FIELD
Chapter 5 ROTATING MAGNETIC FIELD 1 A rotating magnetic field is the key to the operation of AC motors. The magnetic field of the stator is made to rotate electrically around and around in a circle. Stator
More informationTechnology Requirements for Cold and Tropical Wind-Diesel Applications. Chris McKay Product Manager Northwind 100 Ottawa 2009
Technology Requirements for Cold and Tropical Wind-Diesel Applications Chris McKay Product Manager Northwind 100 Ottawa 2009 Wind-Diesel Technology Needs Low maintenance High reliability Diesel grid friendly
More informationPublished by: PIONEER RESEARCH & DEVELOPMENT GROUP ( 201
Study And Analysis Of Fixed Speed Induction Generator Based Wind Farm Grid Fault Control Using Static Compensator Abstract 1 Nazia Zameer, 2 Mohd Shahid 1 M.Tech(Power System) Scholar, Department of EEE,
More informationPowering the device simply requires a lateral motion that allows the magnet to slide freely and frequently.
Power generation is the most important function when it comes to electronics. However today we live in a world where people desire a more portable and convenient way to power up their electronic devices.
More informationCOMPARISON BETWEEN ISOLATED AND GRID CONNECTED DFIG WIND TURBINE
COMPARISON BETWEEN ISOLATED AND GRID CONNECTED DFIG WIND TURBINE Richa jain 1, Tripti shahi 2, K.P.Singh 3 Department of Electrical Engineering, M.M.M. University of Technology, Gorakhpur, India 1 Department
More informationModel Predictive Control of Back-to-Back Converter in PMSG Based Wind Energy System
Model Predictive Control of Back-to-Back Converter in PMSG Based Wind Energy System Sugali Shankar Naik 1, R.Kiranmayi 2, M.Rathaiah 3 1P.G Student, Dept. of EEE, JNTUA College of Engineering, 2Professor,
More informationUNIT-1 Drive Characteristics
UNIT-1 Drive Characteristics DEFINITION: Systems employed for motion control are called as DRIVES Drives may employ any of the prime movers such as diesel or petrol engine, gas or steam turbines, steam
More informationA Comparative Study of Constant Speed and Variable Speed Wind Energy Conversion Systems
GRD Journals- Global Research and Development Journal for Engineering Volume 1 Issue 10 September 2016 ISSN: 2455-5703 A Comparative Study of Constant Speed and Variable Speed Wind Energy Conversion Systems
More informationGreen energy conversion
Green energy conversion Prof. Dr.-Ing. habil. Andreas Binder Department of Electrical Energy Conversion Darmstadt University of Technology abinder@ew.tu-darmstadt.de Prof. A. Binder 1.1/1 Contents of lecture
More informationLesson 16: Asynchronous Generators/Induction Generators
Lesson 16: Asynchronous s/induction s ET 332b Ac Motors, s and Power Systems et332bind.ppt 1 Learning Objectives After this presentation you will be able to: Explain how an induction generator erates List
More information9/7/2010. Chapter , The McGraw-Hill Companies, Inc. MOTOR CLASSIFICATION. 2010, The McGraw-Hill Companies, Inc.
Chapter 2 MOTOR CLASSIFICATION 1 In general, motors are classified according to the type of power used (AC or DC) and the motor's principle of operation. AC DC Motor Family Tree 2 DC MOTOR CONNECTIONS
More informationSingle Phase Induction Motor. Dr. Sanjay Jain Department Of EE/EX
Single Phase Induction Motor Dr. Sanjay Jain Department Of EE/EX Application :- The single-phase induction machine is the most frequently used motor for refrigerators, washing machines, clocks, drills,
More informationResonant Field Modulation A New Class of Variable Speed Generator. Raven Technology, LLC 14 Industrial Parkway Brunswick, ME
Resonant Field Modulation A New Class of Variable Speed Generator Raven Technology, LLC 14 Industrial Parkway Brunswick, ME 04011 207-721-1044 August 2007, updated April 2010 1 Raven Technology Resonant
More informationDepartment of Electrical and Computer Engineering
Page 1 of 1 Faculty of Engineering, Architecture and Science Department of Electrical and Computer Engineering Course Number EES 612 Course Title Electrical Machines and Actuators Semester/Year Instructor
More informationPublished in: Proceedings of the International Conference and Exhibition of Renewable Energy 2008 (RE2008)
Aalborg Universitet Generators of Modern Wind s hen, Zhe Published in: Proceedings of the International onference and Exhibition of Renewable Energy 8 (RE8) Publication date: 8 Document Version Publisher's
More informationInternational Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering. (An ISO 3297: 2007 Certified Organization)
Modeling and Control of Quasi Z-Source Inverter for Advanced Power Conditioning Of Renewable Energy Systems C.Dinakaran 1, Abhimanyu Bhimarjun Panthee 2, Prof.K.Eswaramma 3 PG Scholar (PE&ED), Department
More informationStator rheostat, Autotransformer Star to Delta starter and rotor resistance starter.
UNIT-IV 1.What are the types of starters? Stator rheostat, Autotransformer Star to Delta starter and rotor resistance starter. 2. List out the methods of speed control of cage type 3-phase induction motor?
More informationModelling and Simulation of DFIG with Fault Rid Through Protection
Australian Journal of Basic and Applied Sciences, 5(6): 858-862, 2011 ISSN 1991-8178 Modelling and Simulation of DFIG with Fault Rid Through Protection F. Gharedaghi, H. Jamali, M. Deisi, A. Khalili Dashtestan
More informationLecture 20: Stator Control - Stator Voltage and Frequency Control
Lecture 20: Stator Control - Stator Voltage and Frequency Control Speed Control from Stator Side 1. V / f control or frequency control - Whenever three phase supply is given to three phase induction motor
More informationComparative Analysis of Integrating WECS with PMSG and DFIG Models connected to Power Grid Pertaining to Different Faults
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-issn: 2278-1676,p-ISSN: 2320-3331, Volume 12, Issue 3 Ver. II (May June 2017), PP 124-129 www.iosrjournals.org Comparative Analysis
More informationWind is our Element. siemens.com/loher-windgenerators. Answers for industry.
Wind is our Element siemens.com/loher-windgenerators Answers for industry. Outstanding quality for maximum yield In the wind sector, LOHER Wind Generators have been well known for some time now. They stand
More informationPERFORMANCE ANALYSIS OF SQUIRREL CAGE INDUCTION GENERATOR USING STATCOM
Volume II, Issue XI, November 13 IJLTEMAS ISSN 78-54 PERFORMANCE ANALYSIS OF SQUIRREL CAGE INDUCTION GENERATOR USING K.B. Porate, Assistant Professor, Department of Electrical Engineering, Priyadarshini
More informationFault-Tolerant Control of a Blade-pitch Wind Turbine With Inverter-fed Generator
Fault-Tolerant Control of a Blade-pitch Wind Turbine With Inverter-fed Generator V. Lešić 1, M. Vašak 1, N. Perić 1, T. Wolbank 2 and G. Joksimović 3 1 Faculty of Electrical Engineering and Computing,
More informationAvailable online at ScienceDirect. Procedia Technology 21 (2015 ) SMART GRID Technologies, August 6-8, 2015
Available online at www.sciencedirect.com ScienceDirect Procedia Technology 21 (2015 ) 619 624 SMART GRID Technologies, August 6-8, 2015 Battery Charging Using Doubly Fed Induction Generator Connected
More informationControl of a wind turbine equipped with a variable rotor resistance
Control of a wind turbine equipped with a variable rotor resistance HÉCTOR A. LÓPEZ CARBALLIDO Department of Computer Science and Engineering CHALMERS UNIVERSITY OF TECHNOLOGY UNIVERSITY OF GOTHENBURG
More informationIMPROVING VOLTAGE PROFILE OF A GRID, CONNECTED TO WIND FARM USING STATIC VAR COMPENSATOR
IMPROVING VOLTAGE PROFILE OF A GRID, CONNECTED TO WIND FARM USING STATIC VAR COMPENSATOR Murari Lal Azad, Shubhranshu Vikram Singh, Aizad Khursheed EEE Department, Amity University, Greater Noida, INDIA
More informationWind is our Element. siemens.com/loher-windgenerators. Answers for industry.
Wind is our Element siemens.com/loher-windgenerators Answers for industry. Outstanding quality for maximum yield In the wind sector, LOHER Wind Generators have been well known for some time now. They stand
More informationECE 5671/6671 Lab 5 Squirrel-Cage Induction Generator (SCIG)
ECE 5671/6671 Lab 5 Squirrel-Cage Induction Generator (SCIG) 1. Introduction 1.1 Objectives The objective of this lab is to connect a SCIG generator directly to the grid and measure the power produced
More informationFuzzy based STATCOM Controller for Grid connected wind Farms with Fixed Speed Induction Generators
Fuzzy based STATCOM Controller for Grid connected wind Farms with Fixed Speed Induction Generators Abstract: G. Thrisandhya M.Tech Student, (Electrical Power systems), Electrical and Electronics Department,
More information14 Single- Phase A.C. Motors I
Lectures 14-15, Page 1 14 Single- Phase A.C. Motors I There exists a very large market for single-phase, fractional horsepower motors (up to about 1 kw) particularly for domestic use. Like many large volume
More informationJust what is an alternator?
Just what is an alternator? An alternator is the device used to produce the electricity the car needs to run and to keep the battery charged. The battery is the heart of your electrical system. But you
More informationBEHAVIOUR OF VECTOR CONTROLLED DFIG BASED LOW VOLTAGE WECS AT VARIOUS WIND SPEEDS
BEHAVIOUR OF VECTOR CONTROLLED DFIG BASED LOW VOLTAGE WECS AT VARIOUS WIND SPEEDS Manaullah 1, Arvind Kumar Sharma 2 Department of Electrical Engineering, Faculty of Engineering and Technology, Jamia Millia
More information