Modern Design for Variable Speed Motor-Generators:

Size: px
Start display at page:

Download "Modern Design for Variable Speed Motor-Generators:"

Transcription

1 Modern Design for Variable Speed Motor-Generators: Asynchronous and Synchronous Electric Machinery Options for Pumped Storage Power Plants SHF - Enhancing Hydropower plants Grenoble, April 9-11,

2 Shaft Power over Speed P shaft Maximum shaft power depending on rotational speed Limitation by stator / rotor / converter currents, voltages (-> field weakening range), torque, transformer power n min ( n sync ) n max 2

3 Overview Electric Machinery FixSpeed VarSpeed Synchronous Machine with Salient Poles (SYM) as Generators & Motor- Generators Double Fed Induction Machine Stator Fed Synchronous Machine (2 Speed -> Pole Switching Synchronous Machine) 3

4 Rotor of Synchronous Machine Rotor of Double Fed Induction Machine Variable Speed Motor-Generators Overview Electric Machinery Only Visual Comparison - Not to Scale 4

5 Overview Electric Machinery Machine: Rotor Pole Synchronous Machine: Salient Pole - Salient Poles - DC Field Winding - Damper Winding - Stacked Pole Body with Solid Endplates Machine: Rotor Pole Pitch Induction Machine: Pole Pitch - No Salient Poles - 3-phase AC Winding - No Damper Winding - Stacked Rotor Body (Silicon Steel Laminates) 5

6 Synchronous Machine Double Fed Induction Machine Variable Speed Motor-Generators 2D-FEM Calculation Magnetic Induction 6

7 Overview Electric Machinery Converter Fed Synchronous Machine: P mech S stator S stator-side conv P.F. * S grid-side conv P.F. * S transformer High Voltage Grid Block Transformer Additional transformer may be required for retrofit or special applications DC-Excitation Full Power Converter ~ = DC-Link = ~ Pump- Turbine Grid-Side Converter Unit Stator-Side Converter Unit Synchronous M-G 7

8 Overview Electric Machinery Sum of stator and rotor branch: - Active Power and - Reactive Power High Voltage Grid Block Transformer AC-Excitation Transformer ~ AC-Excitation System = Grid-Side Converter Unit - Failure Currents - Harmonics (Voltage Waveform) DC-Link = ~ Rotor-Side Converter Unit DFIM Pump- Turbine 8

9 Example THD Harmonic Distortion THD of the stator voltage at 1.5 Hz rotor fundamental: THD < 0.8% with converter fed rotor for comparison: THD < 0.5% for sinusoidal rotor voltage Rotor (Converter) Voltage Spectrum Stator Voltage Spectrum Rotor fed by converter (clocked voltage source) 9

10 Major influence on components Double Fed Induction Machine: Grid code requirements rotor-side converter Power factor converter & rotor & stator Time for mode changes rotor & converter voltage Black start capability converter Converter Fed Synchronous Machine: Bypass required? motor-generator Moment of inertia (limiting hydraulic overpressure) motor-generator (number of pole pairs) 10

11 Efficiency Synchronous Machine with Full Power Converter DF Induction Machine with AC-Excitation System Operation mode : 428.6rpm; 102MW; Total 110MVA, p.f. 0.90; Stator 101MVA, p.f rpm; 102MW; Total 111MVA, p.f. 0.90; Stator 110MVA, p.f Friction losses 480 kw 580 kw No-load losses 210 kw 200 kw Stator I2R losses 210 kw 250 kw ( 98.8 %) ( 98.3 %) Rotor I2R losses 110 kw 390 kw Additional losses 160 kw 300 kw Excit. system losses 20 kw 380 kw (incl. AC-Excitation) Converter losses 1510 kw ( 98.5 %) - Total losses / efficiency 2700 kw / 97.3 % 2100 kw / 97.9 % 11

12 Ventilation Concept SYM: Axial intake into pole gaps, or radial-radial air-flow DFIM: Radial-radial air-flow Synchronous Machine: Ventilation axial-radial Induction Machine: Ventilation radial-radial 12

13 Ventilation Concept Verification by CFD Analysis: Air-flow distribution Cooling air velocity Verification of ventilation losses Estimation of heat transfer 13

14 Ventilation Concept Closed air circulation Self ventilated sliprings plus shaft mounted radial fan Filter and air-water heat exchangers on top Open ventilation concept Self ventilated sliprings Combined system for heated air and carbon dust extraction Air intake Manifold 14

15 Challenges for the Winding System Clocked voltage with high du/dt C r R _Fe(f) L i(f), L a R (DC) R (f) R _Fe(f) L i(f), L a R (DC) R (f) Additional loading for the corona protection system Capacitive current through the main insulation (-> bearing currents) The standard equivalent circuits do not represent the reaction on high frequency events, such as voltage peaks with high du/dt. 15

16 Overview Electric Machinery SYM with Converter DF-IM (+) Synchronous machine (-) DF-IM as more complex machine (-) Converter cost for full stator power (+) Converter for rotor power only (-) Efficiency drop due to converter losses (+) Higher efficiency (-) Additional converter power required for power factor regulation (+) Separate active and reactive power control (+) By-pass operation possible (-) Practically converter always in operation (+) Very flexible operation, incl. e.g. high speed power shifts and mode changes. (o) Flexible operation, incl. e.g. high speed power shifts (but limited by the speed range) (+) Very quick startup (pump in water) (-) Startup of pump with runner in air (+) Black-start capability (o) Additional provisions for black-start (+) Retrofit opportunity to speed variable units (-) Complete new rotor plus converter 16

17 Contact: Ludger Koedding Tel

18 18

9. Examples of hydro energy conversion

9. 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 information

Synchronous Generators I. Spring 2013

Synchronous Generators I. Spring 2013 Synchronous Generators I Spring 2013 Construction of synchronous machines In a synchronous generator, a DC current is applied to the rotor winding producing a rotor magnetic field. The rotor is then turned

More information

The accompanying materials were prepared by EDP and are not to be distributed or reused in any manner without prior consent.

The accompanying materials were prepared by EDP and are not to be distributed or reused in any manner without prior consent. Terms of use The information's contained in this communication is confidential, may be privileged and is intended for the exclusive use of EDP in this conference. The accompanying materials were prepared

More information

Electrical Machines -II

Electrical Machines -II Objective Type Questions: 1. Basically induction machine was invented by (a) Thomas Alva Edison (b) Fleming (c) Nikola Tesla (d) Michel Faraday Electrical Machines -II 2. What will be the amplitude and

More information

Synchronous Generators I. EE 340 Spring 2011

Synchronous Generators I. EE 340 Spring 2011 Synchronous Generators I EE 340 Spring 2011 Construction of synchronous machines In a synchronous generator, a DC current is applied to the rotor winding producing a rotor magnetic field. The rotor is

More information

DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING

DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING QUESTION BANK 16EET41 SYNCHRONOUS AND INDUCTION MACHINES UNIT I SYNCHRONOUS GENERATOR 1. Why the stator core is laminated? 2. Define voltage regulation

More information

Comparative Analysis of Integrating WECS with PMSG and DFIG Models connected to Power Grid Pertaining to Different Faults

Comparative 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 information

Pumped storage for balancing wind power fluctuations in an isolated grid

Pumped storage for balancing wind power fluctuations in an isolated grid Wind Power to the Grid EPE Wind Energy Chapter 1 st seminar Delft University of Technology, 8-9 March 008 Pumped storage for balancing wind power fluctuations in an isolated grid Jon Are Suul, Professor

More information

CHAPTER 4 MODELING OF PERMANENT MAGNET SYNCHRONOUS GENERATOR BASED WIND ENERGY CONVERSION SYSTEM

CHAPTER 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 information

Converteam: St. Mouty, A. Mirzaïan FEMTO-ST: A. Berthon, D. Depernet, Ch. Espanet, F. Gustin

Converteam: 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 information

Introduction to Variable Speed Drives. Pekik Argo Dahono Electrical Energy Conversion Research Laboratory. Institute of Technology Bandung

Introduction to Variable Speed Drives. Pekik Argo Dahono Electrical Energy Conversion Research Laboratory. Institute of Technology Bandung Introduction to Pekik Argo Dahono Electrical Energy Conversion Research Laboratory Institute of Technology Bandung Why Electric Drives Electric drives are available in any power. They cover a wide range

More information

ECE1750, Spring Motor Drives and Other

ECE1750, 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 information

AXIAL FLUX PERMANENT MAGNET BRUSHLESS MACHINES

AXIAL FLUX PERMANENT MAGNET BRUSHLESS MACHINES AXIAL FLUX PERMANENT MAGNET BRUSHLESS MACHINES Jacek F. Gieras, Rong-Jie Wang and Maarten J. Kamper Kluwer Academic Publishers, Boston-Dordrecht-London, 2004 TABLE OF CONTENETS page Preface v 1. Introduction

More information

Lesson 16: Asynchronous Generators/Induction Generators

Lesson 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 information

Sub:EE6604/DESIGN OF ELECTRICAL MACHINES Unit V SYNCHRONOUS MACHINES. 2. What are the two type of poles used in salient pole machines?

Sub:EE6604/DESIGN OF ELECTRICAL MACHINES Unit V SYNCHRONOUS MACHINES. 2. What are the two type of poles used in salient pole machines? SRI VIDYA COLLEGE OF ENGINEERING & TECHNOLOGY DEPARTMENT OF EEEE QUESTION BANK Sub:EE6604/DESIGN OF ELECTRICAL MACHINES Unit V SYNCHRONOUS MACHINES 1. Name the two types of synchronous machines. 1. Salient

More information

Brochure. Wind turbine generators Reliable technology for all turbine applications

Brochure. 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 information

EE 742 Chap. 7: Wind Power Generation. Y. Baghzouz Fall 2011

EE 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 information

VARIABLE SPEED UNITS FOR PUMPED STORAGE POWER PLANTS

VARIABLE SPEED UNITS FOR PUMPED STORAGE POWER PLANTS Page 1 of 9 VARIABLE SPEED UNITS FOR PUMPED STORAGE POWER PLANTS K. Scherer Abstract: Variable speed units for pumped storage power plants are becoming a state-of-the-art technology for optimized efficiency

More information

Chapter 3.2: Electric Motors

Chapter 3.2: Electric Motors Part I: Objective type questions and answers Chapter 3.2: Electric Motors 1. The synchronous speed of a motor with 6 poles and operating at 50 Hz frequency is. a) 1500 b) 1000 c) 3000 d) 750 2. The efficiency

More information

RTDS Training course of IEPG

RTDS Training course of IEPG RTDS Training course of IEPG DAY 4 : Modelling wind turbine type 3 and type 4 COORDINATOR: DR. IR. J.L. RUEDA TORRES RESPONSIBLE FOR LAB INSTRUCTIONS: DR.IR DA WANG February 28, 2018 Preamble Due to the

More information

EE 742 Chap. 7: Wind Power Generation. Y. Baghzouz

EE 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 information

Induction Motor Control

Induction Motor Control Induction Motor Control A much misunderstood yet vitally important facet of electrical engineering. The Induction Motor A very major consumer of electrical energy in industry today. The major source of

More information

General Purpose Permanent Magnet Motor Drive without Speed and Position Sensor

General Purpose Permanent Magnet Motor Drive without Speed and Position Sensor General Purpose Permanent Magnet Motor Drive without Speed and Position Sensor Jun Kang, PhD Yaskawa Electric America, Inc. 1. Power consumption by electric motors Fig.1 Yaskawa V1000 Drive and a PM motor

More information

Instructor. Payam Zarbakhsh. Department of electrical electronics engineering

Instructor. Payam Zarbakhsh. Department of electrical electronics engineering Instructor Payam Zarbakhsh Department of electrical electronics engineering Electrical Machines Induction Motors_Note(1) Comparing with synchronous motor No dc field current is required to run the machine.

More information

BHARAT ALUMINIUM COMPANY LTD. SPECIFICATIONS FOR SYNCHRONOUS GENERATOR GENERAL Make : Jinan Power Equipment Factory Type : WX2

BHARAT ALUMINIUM COMPANY LTD. SPECIFICATIONS FOR SYNCHRONOUS GENERATOR GENERAL Make : Jinan Power Equipment Factory Type : WX2 BHARAT ALUMINIUM COMPANY LTD. SPECIFICATIONS FOR SYNCHRONOUS GENERATOR 1.00.00 GENERAL 1.01.00 Make : Jinan Power Equipment Factory 1.02.00 Type : WX21Z-073LLT 1.03.00 Reference Standard : GB/T7064-2002

More information

FRADES II Europe s Largest and Most Powerful Doubly-Fed Induction Machine A Step Ahead in Variable Speed Machines

FRADES II Europe s Largest and Most Powerful Doubly-Fed Induction Machine A Step Ahead in Variable Speed Machines FRADES II Europe s Largest and Most Powerful Doubly-Fed Induction Machine A Step Ahead in Variable Speed Machines Thomas Hildinger Ludger Ködding Philipp Eilebrecht Alexander Kunz Holger Henning Voith

More information

DC CIRCUITS ELECTROMAGNETISM

DC CIRCUITS ELECTROMAGNETISM DC CIRCUITS 1. State and Explain Ohm s Law. Write in brief about the limitations of Ohm s Law. 2. State and explain Kirchhoff s laws. 3. Write in brief about disadvantages of series circuit and advantages

More information

Research and Reviews: Journal of Engineering and Technology

Research and Reviews: Journal of Engineering and Technology Research and Reviews: Journal of Engineering and Technology Brushless Excitation System of Turbo Generator Komala Koila* Department of Electrical and Electronics, Khammam Institute of Technology and Sciences,

More information

5. LINEAR MOTORS 5.1 INTRODUCTION

5. LINEAR MOTORS 5.1 INTRODUCTION 5.1 INTRODUCTION 5. LINEAR MOTORS Linear Electric Motors belong to the group of Special electrical machines that convert electrical energy into mechanical energy of translator motion. Linear Electric motors

More information

Electrical Theory. Generator Theory. PJM State & Member Training Dept. PJM /22/2018

Electrical Theory. Generator Theory. PJM State & Member Training Dept. PJM /22/2018 Electrical Theory Generator Theory PJM State & Member Training Dept. PJM 2018 Objectives The student will be able to: Describe the process of electromagnetic induction Identify the major components of

More information

Kontakt. Turnkey solutions for hydropower plants An overview of the ABB portfolio

Kontakt. Turnkey solutions for hydropower plants An overview of the ABB portfolio Kontakt Turnkey solutions for hydropower plants An overview of the ABB portfolio ABB is the world s leading provider of products and integrated solutions for power and automation technologies for hydropower

More information

CHAPTER 5 FAULT AND HARMONIC ANALYSIS USING PV ARRAY BASED STATCOM

CHAPTER 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 information

DEPARTMENT OF EI ELECTRICAL MACHINE ASSIGNMENT 1

DEPARTMENT OF EI ELECTRICAL MACHINE ASSIGNMENT 1 It is the mark of an educated mind to be able to entertain a thought without accepting it. DEPARTMENT OF EI ELECTRICAL MACHINE ASSIGNMENT 1 1. Explain the Basic concepts of rotating machine. 2. With help

More information

Modern Motor Control Applications and Trends Tomas Krecek, Ondrej Picha, Steffen Moehrer. Public Information

Modern Motor Control Applications and Trends Tomas Krecek, Ondrej Picha, Steffen Moehrer. Public Information Modern Motor Control Applications and Trends Tomas Krecek, Ondrej Picha, Steffen Moehrer Content Introduction Electric Machines Basic and Advance Control Techniques Power Inverters and Semiconductor Requirements

More information

ECE 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 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 information

Design of Brushless Permanent-Magnet Machines. J.R. Hendershot Jr. T.J.E. Miller

Design of Brushless Permanent-Magnet Machines. J.R. Hendershot Jr. T.J.E. Miller Design of Brushless Permanent-Magnet Machines J.R. Hendershot Jr. T.J.E. Miller Contents 1 GENERAL INTRODUCTION l 1.1 Definitions and types of brushless motor 1 1.2 Commutation,. 4 1.3 Operation of 3-phase

More information

14 Single- Phase A.C. Motors I

14 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 information

Regulation: R16 Course & Branch: B.Tech EEE

Regulation: R16 Course & Branch: B.Tech EEE SIDDHARTH GROUP OF INSTITUTIONS :: PUTTUR Siddharth Nagar, Narayanavanam Road 517583 QUESTION BANK (Descriptive) Subject with Code : Electrical Machines-II (16EE215) Regulation: R16 Course & Branch: B.Tech

More information

Asynchronous generators

Asynchronous 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 information

Table of Contents. Foreword...xiii. Chapter One Introduction, Objectives of the Guide...1

Table of Contents. Foreword...xiii. Chapter One Introduction, Objectives of the Guide...1 Table of Contents Foreword...xiii Chapter One Introduction, 9 1.1 Objectives of the Guide...1 Chapter Two Pumping System Hydraulic Characteristics, 3 2.1 System Characteristics...3 2.2 Pump Curves...9

More information

Models: PMG A and PMG P

Models: PMG A and PMG P Models: PMG 3.0-250-A and PMG 2.0-250-P 1/6 AXCO AF-PM-2-D generators Models: PMG 3.0-250-A and PMG 2.0-250-P Technical Data Sheet Permanent Magnet Generator for Distributed Wind Power Applications AXCO-Motors

More information

CHAPTER 5 ANALYSIS OF COGGING TORQUE

CHAPTER 5 ANALYSIS OF COGGING TORQUE 95 CHAPTER 5 ANALYSIS OF COGGING TORQUE 5.1 INTRODUCTION In modern era of technology, permanent magnet AC and DC motors are widely used in many industrial applications. For such motors, it has been a challenge

More information

Unit Protection System for Pumped-Storage Power Stations

Unit Protection System for Pumped-Storage Power Stations Unit Protection System for Pumped-Storage Power Stations 1. Introduction In many power systems, pumped-storage power stations are used in addition to run-of-river power stations. These power stations serve

More information

ABB Wind Power Solution

ABB Wind Power Solution Feng Li, Wind ISI, CNABB, November, 2016 ABB Wind Power Solution November 13, 2016 Slide 1 ABB deliveries from A to Z into the wind industry Wind power generation, transmission and integration, control

More information

Aspects of Permanent Magnet Machine Design

Aspects of Permanent Magnet Machine Design Aspects of Permanent Magnet Machine Design Christine Ross February 7, 2011 Grainger Center for Electric Machinery and Electromechanics Outline Permanent Magnet (PM) Machine Fundamentals Motivation and

More information

CHAPTER 6 DESIGN AND DEVELOPMENT OF DOUBLE WINDING INDUCTION GENERATOR

CHAPTER 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 information

ANALYSIS 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) 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 information

APGENCO/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 information

APPLICATION OF VARIABLE FREQUENCY TRANSFORMER (VFT) FOR INTEGRATION OF WIND ENERGY SYSTEM

APPLICATION 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 information

Qingdao Zener Electric Co., Ltd

Qingdao Zener Electric Co., Ltd Traction inverter, Power Supply, Emergency ventilation inverter for Light rail train Qingdao Zener Electric Co., Ltd Part 1 Power Supply for the Overhead Traction Line Introduction Conventional power supply

More information

AC MOTOR TYPES. DESCRIBE how torque is produced in a single-phase AC motor. EXPLAIN why an AC synchronous motor does not have starting torque.

AC 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 information

Connection of Power Generating Modules to DNO Distribution Networks in accordance with EREC G99

Connection of Power Generating Modules to DNO Distribution Networks in accordance with EREC G99 Connection of Power Generating Modules to DNO Distribution Networks in accordance with EREC G99 Version 2, January 2019 www.energynetworks.org 2 Introduction Connection of Power Generating Modules to DNO

More information

Three-Phase Induction Motor With Frequency Inverter

Three-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 information

Joule losses of magnets in permanent magnet synchronous machines - case concentrated winding machine

Joule losses of magnets in permanent magnet synchronous machines - case concentrated winding machine Joule losses of magnets in permanent magnet synchronous machines - case concentrated winding machine Hanne Jussila Lappeenranta University of Technology 1 Joule losses of permanent magnets Eddy current

More information

From 4 to 20 poles ( over contact MM) IP 23. Available up to IP 44 with filters.

From 4 to 20 poles ( over contact MM) IP 23. Available up to IP 44 with filters. MJT Model Power Voltages MJT Up to 5.200 kva Up to 1.000 V Frame 160 ± 900 Pole From 4 to 20 poles ( over contact MM) Cooling IC 01 IP Enclosure Main Applications Sector IP 23. Available up to IP 44 with

More information

Single Phase Generator Winding Diagram Download

Single Phase Generator Winding Diagram Download We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with single phase generator

More information

Workshop on Grid Integration of Variable Renewable Energy: Part 1

Workshop 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 information

AE105 PRINCIPLES OF ELECTRICAL ENGINEERING JUNE 2014

AE105 PRINCIPLES OF ELECTRICAL ENGINEERING JUNE 2014 Q.2 a. Explain in detail eddy current losses in a magnetic material. Explain the factors on which it depends. How it can be reduced? IETE 1 b. A magnetic circuit with a single air gap is shown in given

More information

Chapter 2 PRINCIPLES OF AFPM MACHINES. 2.1 Magnetic circuits Single-sided machines Double-sided machines with internal PM disc rotor

Chapter 2 PRINCIPLES OF AFPM MACHINES. 2.1 Magnetic circuits Single-sided machines Double-sided machines with internal PM disc rotor Chapter 2 PRINCIPLES OF AFPM MACHINES In this chapter the basic principles of the AFPM machine are explained in details. Considerable attention is given to the magnetic circuits, windings, torque production,

More information

Extended requirements on turbogenerators

Extended requirements on turbogenerators , Siemens AG, Mülheim/Ruhr, Germany Extended requirements on turbogenerators due to changed operational regimes siemens.com Table of Content Evaluation of current operation regimes Extended requirements

More information

istockphoto.com WIND ENERGY SOLUTIONS Synchronous and asynchronous generators Azimuth and pitch drives VEM WIND ENERGY 1

istockphoto.com WIND ENERGY SOLUTIONS Synchronous and asynchronous generators Azimuth and pitch drives VEM WIND ENERGY 1 istockphoto.com WIND ENERGY SOLUTIONS Synchronous and asynchronous generators Azimuth and pitch drives VEM WIND ENERGY 1 VEM drive solutions for any application We at VEM are expert partners for drive

More information

34 th Hands-On Relay School

34 th Hands-On Relay School 34 th Hands-On Relay School Generation Track Overview Lecture Generator Design, Connections, and Grounding 1 Generator Main Components Stator Core lamination Winding Rotor Shaft Poles Slip rings Stator

More information

VIII. Three-phase Induction Machines (Asynchronous Machines) Induction Machines

VIII. 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 information

Synchronous motor & drive package Low Voltage motors and drives

Synchronous motor & drive package Low Voltage motors and drives Synchronous motor & drive package Low Voltage motors and drives Two new high-performance motor and drive packages For industrial applications Slide 2 standard motor + special rotor standard drive + new

More information

EEE3441 Electrical Machines Department of Electrical Engineering. Lecture. Introduction to Electrical Machines

EEE3441 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 information

694 Electric Machines

694 Electric Machines 694 Electric Machines 9.1 A 4-pole wound-rotor induction motor is used as a frequency changer. The stator is connected to a 50 Hz, 3-phase supply. The load is connected to the rotor slip rings. What are

More information

Electric Utility Power Systems. Generation of Electricity

Electric Utility Power Systems. Generation of Electricity Electric Utility Power Systems Generation of Electricity 1 Demand of an Electrical System The total power drawn by a customer of a large utility system fluctuates between wide limits, depending on the

More information

ESO 210 Introduction to Electrical Engineering

ESO 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 information

Stanley-Adamson: The First Industrial Size Variable Speed Compact Hydro Project Worldwide

Stanley-Adamson: The First Industrial Size Variable Speed Compact Hydro Project Worldwide IOP Conference Series: Earth and Environmental Science OPEN ACCESS Stanley-Adamson: The First Industrial Size Variable Speed Compact Hydro Project Worldwide To cite this article: P Duflon and M Mailloux

More information

Power Management in a Green Factory. March 20, 2013 Mike Lin Delta Products Corp.

Power Management in a Green Factory. March 20, 2013 Mike Lin Delta Products Corp. Power Management in a Green Factory March 20, 2013 Mike Lin Delta Products Corp. Power Management Challenges in a Green Factory Electricity price and consumption increase result in production cost increase

More information

AC Synchronous Reluctance motors

AC Synchronous Reluctance motors AC Synchronous Reluctance motors AC Synchronous Reluctance Motors Invented many years ago but developed for production in series only recently the Synchronous reluctance motors combine the advantage of

More information

Fachpraktikum Elektrische Maschinen. Experiments with a 400/ 690 V Squirrel Cage Induction Machine

Fachpraktikum Elektrische Maschinen. Experiments with a 400/ 690 V Squirrel Cage Induction Machine Fachpraktikum Elektrische Maschinen Experiments with a 400/ 690 V Squirrel Cage Induction Machine Prepared by Arda Tüysüz January 2013 1. Questions to answer before the experiment - Describe the operation

More information

Excitation system is of Static Silicon Excitation System, including excitation transformer, thyristors, and AVR.

Excitation system is of Static Silicon Excitation System, including excitation transformer, thyristors, and AVR. Turbo - Generator Type: QF Series 1. General The generator is a two pole, cylindrical rotor type synchronous machine, directly coupled with steam turbine. It has a closed-circuit cooling system to cool

More information

Possibilities of Distributed Generation Simulations Using by MATLAB

Possibilities 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 information

ASM. Asynchronous Spindle. SEM Limited Faraday Way Orpington, Kent BR5 3QT United Kingdom

ASM. Asynchronous Spindle. SEM Limited Faraday Way Orpington, Kent BR5 3QT United Kingdom NE ASM Asynchronous Spindle Motors SEM Limited Faraday Way Orpington, Kent BR 3QT United Kingdom Tel: +44 ()1689 8847 Fax: +44 ()1689 884884 Email: sales@sem.co.uk Web: www.sem.co.uk Version 2.1 June 211

More information

Cooling Enhancement of Electric Motors

Cooling Enhancement of Electric Motors Cooling Enhancement of Electric Motors Authors : Yasser G. Dessouky* and Barry W. Williams** Dept. of Computing & Electrical Engineering Heriot-Watt University Riccarton, Edinburgh EH14 4AS, U.K. Fax :

More information

Level 2, Level 3 & Level 4 Interconnection Request Application Form (Greater than 25 kw to 10 MVA or less)

Level 2, Level 3 & Level 4 Interconnection Request Application Form (Greater than 25 kw to 10 MVA or less) Level 2, Level 3 & Level 4 Interconnection Request Application Form (Greater than 25 kw to 10 MVA or less) Interconnection Customer Contact Information Name Alternative Contact Information (if different

More information

Connection of Power Generating Modules to DNO Distribution Networks in accordance with EREC G99

Connection of Power Generating Modules to DNO Distribution Networks in accordance with EREC G99 Connection of Power Generating Modules to DNO Distribution Networks in accordance with EREC G99 Version 1 August 2018 www.energynetworks.org 2 Introduction Connection of Power Generating Modules to DNO

More information

Axial Flux Permanent Magnet Brushless Machines

Axial Flux Permanent Magnet Brushless Machines Jacek F. Gieras Rong-Jie Wang Maarten J. Kamper Axial Flux Permanent Magnet Brushless Machines Second Edition Springer Contents 1 Introduction 1 1.1 Scope 1 1.2 Features 1 1.3 Development of AFPM Machines

More information

Uptime. All the time.

Uptime. All the time. usa.siemens.com/perfectharmony Uptime. All the time. Siemens SINAMICS PERFECT HARMONY GH180 air-cooled drive Answers for industry. 13-SI-0186_brochure_Perfect Harmony Air-Cooled brochure_v7.indd 3 Downtime

More information

SRI VIDYA COLLEGE OF ENGINEERING & TECHNOLOGY QUESTION BANK UNIT III EC6352-ELECTRICAL ENGINEERING AND INSTRUMENTATION UNIT III PART A

SRI VIDYA COLLEGE OF ENGINEERING & TECHNOLOGY QUESTION BANK UNIT III EC6352-ELECTRICAL ENGINEERING AND INSTRUMENTATION UNIT III PART A SRI VIDYA COLLEGE OF ENGINEERING & TECHNOLOGY QUESTION BANK UNIT III EC6352-ELECTRICAL ENGINEERING AND INSTRUMENTATION UNIT III PART A INDUCTION MOTORS 1. What are the 2 types of 3phase induction motor?

More information

TRANSNORM LOW VOLTAGE MOTORS IC 411 TN LV 1 4E5

TRANSNORM LOW VOLTAGE MOTORS IC 411 TN LV 1 4E5 TechnicalDocumentation TN LV 1 4E5 TRANSNORM LOW VOLTAGE MOTORS IC 411 Mission, Vision, Targets Our electric motors and generators are optimized in accordance with our client's technical and economical

More information

EPE97 OPTIMIZED DESIGN OF VARIABLE-SPEED DRIVES BASED ON NUMERICAL SIMULATION

EPE97 OPTIMIZED DESIGN OF VARIABLE-SPEED DRIVES BASED ON NUMERICAL SIMULATION EPE97 OPTIMIZED DESIGN OF VARIABLE-SPEED DRIVES BASED ON NUMERICAL SIMULATION J.-J.Simond*, A.Sapin**, B.Kawkabani*, D.Schafer***, M.Tu Xuan*, B.Willy*** *Swiss Federal Institute of Technology, Electrical

More information

Dev Bhoomi Institute Of Technology LABORATORY Department of Electrical And Electronics Engg. Electro-mechanical Energy Conversion II

Dev Bhoomi Institute Of Technology LABORATORY Department of Electrical And Electronics Engg. Electro-mechanical Energy Conversion II REV. NO. : REV. DATE : PAGE: 1 Electro-mechanical Energy Conversion II 1. To perform no load and blocked rotor tests on a three phase squirrel cage induction motor and determine equivalent circuit. 2.

More information

J.-J.Simond*, A.Sapin**, B.Kawkabani*, D.Schafer***, M.Tu Xuan*, B.Willy***

J.-J.Simond*, A.Sapin**, B.Kawkabani*, D.Schafer***, M.Tu Xuan*, B.Willy*** EPE97 OPTIMIZED DESIGN OF VARIABLE-SPEED DRIVES BASED ON NUMERICAL SIMULATION J.-J.Simond*, A.Sapin**, B.Kawkabani*, D.Schafer***, M.Tu Xuan*, B.Willy*** *Swiss Federal Institute of Technology, Electrical

More information

A Linear Magnetic-geared Free-piston Generator for Range-extended Electric Vehicles

A Linear Magnetic-geared Free-piston Generator for Range-extended Electric Vehicles A Linear Magnetic-geared Free-piston Generator for Range-extended Electric Vehicles Wenlong Li 1 and K. T. Chau 2 1 Department of Electrical and Electronic Engineering, The University of Hong Kong, wlli@eee.hku.hk

More information

EXPERIMENT 2 THREE PHASE INDUCTION MOTOR, PART 1

EXPERIMENT 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 information

Question Bank ( ODD)

Question Bank ( ODD) Programme : B.E Question Bank (2016-2017ODD) Subject Semester / Branch : EE 6703 SPECIAL ELECTRICAL MACHINES : VII-EEE UNIT - 1 PART A 1. List the applications of synchronous reluctance motors. 2. Draw

More information

Fall 1997 EE361: MIDTERM EXAM 2. This exam is open book and closed notes. Be sure to show all work clearly.

Fall 1997 EE361: MIDTERM EXAM 2. This exam is open book and closed notes. Be sure to show all work clearly. NAME: STUDENT NUMBER: Fall 1997 EE361: MIDTERM EXAM 2 This exam is open book and closed notes. Be sure to show all work clearly. 1. 10 points - Mechanical and Electrical Energy Relationships: A dc motor

More information

COLLEGE OF ENGINEERING DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING QUESTION BANK SUBJECT CODE & NAME : EE 1001 SPECIAL ELECTRICAL MACHINES

COLLEGE OF ENGINEERING DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING QUESTION BANK SUBJECT CODE & NAME : EE 1001 SPECIAL ELECTRICAL MACHINES KINGS COLLEGE OF ENGINEERING DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING QUESTION BANK SUBJECT CODE & NAME : EE 1001 SPECIAL ELECTRICAL MACHINES YEAR / SEM : IV / VII UNIT I SYNCHRONOUS RELUCTANCE

More information

Performance Analysis of 3-Ø Self-Excited Induction Generator with Rectifier Load

Performance Analysis of 3-Ø Self-Excited Induction Generator with Rectifier Load Performance Analysis of 3-Ø Self-Excited Induction Generator with Rectifier Load,,, ABSTRACT- In this paper the steady-state analysis of self excited induction generator is presented and a method to calculate

More information

SINAMICS SM150. 4/2 Overview. 4/2 Benefits. 4/2 Design. 4/6 Function. 4/8 Selection and ordering data. 4/8 Options

SINAMICS SM150. 4/2 Overview. 4/2 Benefits. 4/2 Design. 4/6 Function. 4/8 Selection and ordering data. 4/8 Options /2 Overview /2 Benefits /2 Design /6 Function /8 Selection and ordering data /8 Options Technical data /1 General technical data /15 Control properties /15 Ambient conditions /16 Installation conditions

More information

UNIT-I ALTERNATORS PART-A

UNIT-I ALTERNATORS PART-A UNIT-I ALTERNATORS 1. What principle is used in Alternators? 2. What are the requirements of an alternator? 3. Mention the types of alternator rotor. 4. What is hunting in alternators? 5. What are the

More information

Technical Guide No. 7. Dimensioning of a Drive system

Technical Guide No. 7. Dimensioning of a Drive system Technical Guide No. 7 Dimensioning of a Drive system 2 Technical Guide No.7 - Dimensioning of a Drive system Contents 1. Introduction... 5 2. Drive system... 6 3. General description of a dimensioning

More information

UNIT I SYNCHRONOUS GENERATOR PART-A

UNIT I SYNCHRONOUS GENERATOR PART-A 1. What is an alternator? UNIT I SYNCHRONOUS GENERATOR PART-A An alternator or AC generator is a synchronous machine which converts mechanical energy into electrical energy and produces alternating emf.

More information

Energy Efficient Motors

Energy Efficient Motors Energy Efficient Motors Why High Efficiency Motors? Electric motors responsible for 40% of global electricity usage Drive pumps, fans, compressors, and many other mechanical traction equipment International

More information

VARIABLE SPEED DRIVES AND MOTORS

VARIABLE SPEED DRIVES AND MOTORS EDITION 1 A G A M B I C A T E C H N I C A L G U I D E VARIABLE SPEED DRIVES AND MOTORS Measuring Efficiency in Power Drive Systems Executive Summary Modern VSDs are highly efficient devices o typically

More information

Fachpraktikum Elektrische Maschinen. Theory of Induction Machines

Fachpraktikum 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 information

Introduction. 1/2 Overview 1/3 Benefits 1/3 Application. 1/3 Order No. code. 1/4 Protection strategy

Introduction. 1/2 Overview 1/3 Benefits 1/3 Application. 1/3 Order No. code. 1/4 Protection strategy /2 Overview /3 Benefits /3 Application /3 Order No. code /4 Protection strategy /5 General technical data /5 Converter-fed operation /7 Motor protection /7 Bearing monitoring /8 Electrical design /8 Motor

More information

Remy HVH250 Application Manual Remy HVH250 Application Manual

Remy HVH250 Application Manual Remy HVH250 Application Manual Preliminary Draft HVH250 MotorManual20110407.doc Page 1 of 31 TABLE OF CONTENTS 1. INTRODUCTION...3 2. SYSTEM OVERVIEW...3 2.1 Installation Overview...3 2.2 Motor Overview...3 3. HVH MOTOR TYPICAL APPLICATIONS...4

More information