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Converter Applications and their Influence on Large Electrical Machines

Kataloginformation Katalogdatensatz500177925 .

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Feldname	Details
Vorliegende Sprache	eng
Hinweise auf parallele Ausgaben	383308704 Buchausg. u.d.T.: ‡Drubel, Oliver: Converter applications and their influence on large electrical machines
ISBN	978-3-642-36281-1
Name	Drubel, Oliver
T I T E L	Converter Applications and their Influence on Large Electrical Machines
Verlagsort	Berlin ; Heidelberg
Verlag	Springer
Erscheinungsjahr	2013
Erscheinungsjahr	2013
Umfang	Online-Ressource (X, 190 p. 113 illus, digital)
Reihe	Lecture Notes in Electrical Engineering ; 232
Notiz / Fußnoten	Description based upon print version of record
Weiterer Inhalt	Title; Contents; Introduction; Industrial Requirements for Variable Speed Drives andApplications of Brushless Exciters; Research Activities in the Field of Large and Medium SizeConverter Drives; Typical Converter Designs for Electrical Machines; Overview of Converters and Their Application; Naturally Commutating Converters; Forced Commutating Converters; Harmonic Content in the Voltage and CurrentCharacteristics of Different Converter Types; Calculation-Methods for Converter Fed Electrical Machines. Analytical Calculation Methods for Special OperationPoints and Machine Model Integration into CircuitsNon-linear Transient Time-Stepping Numerical FieldCalculation with Integrated Circuit Elements; Additional Losses Due to Higher Voltage Harmonics; Overview of Converter Dependent Loss Components; Eddy Current Distribution within the Stator and RotorWinding; Additional Iron Losses within the Stator and RotorLamination; Eddy Current Losses within Massive Magnetic Material; Loss Measurement within Magnetic Material; Additional Losses for Different Voltage Source ConverterTypes. Converter Caused Torque OscillationsInteraction between Stator Field Components; Calculation of Electromagnetic Torque Oscillations; Torsional Shaft Oscillations and Design Rules; Noise Based on Electromagnetic Sources in Case of Converter Operation; General Overview of Noise Calculation; Determination of the Electromagnetic Force Modes andAmplitudes; Eigen-Modes and Mechanical Calculation Methods; Influence of Pulse Frequency and Converter Operation onNoise Phenomena; Converter Caused Shaft Voltages; Overview of Different Shaft Voltage Types. Circumferential Flux and Capacitive Imposed ShaftVoltagesMeasurements of Current Path and Voltage Transients; Shaft Grounding and Converter Concepts; Insulation Strategies in Converter Driven Machines; Overview of Converter Implied Insulation Stress; Potential Distribution within a Converter SuppliedElectrical Machine; Voltage Peaks due to Wave Reflection; Influence of the Voltage Characteristic on the InsulationLife Time; Influence of the Converter Type on the Insulation System. Converter Applications in Typical Examples of Energy Efficient Pump Systems and in Processes with a Strong Overload CharacteristicEnergy Saving Potential for Boiler Feed Water Pumps inPart Load Operated Coal Power Plants for Different DriveArrangements; Influence of Speed and Overload Capability of Steel MillDrives on the Motor Efficiency; Conclusion; Attachment; Symbols; References; Index
Titelhinweis	Buchausg. u.d.T.: ‡Drubel, Oliver: Converter applications and their influence on large electrical machines
ISBN	ISBN 978-3-642-36282-8
Klassifikation	THRD
	THRM
	TEC046000
	621.317
	TK7881.15
	ZN 8200
	ZN 8340
Kurzbeschreibung	Converter driven applications are applied in more and more processes. Almost any installed wind-farm, ship drives, steel mills, several boiler feed water pumps, extruder and many other applications operate much more efficient and economic in case of variable speed solutions. The boundary conditions for a motor or generator will change, if it is supplied by a converter. An electrical machine, which is operated by a converter, can no longer be regarded as an independent component, but is embedded in a system consisting of converter and machine.This book gives an overview of existing converter designs for large electrical machines. Methods for the appropriate calculation of machine phenomena, which are implied by converters are derived in the power range above 500kVA. It is shown how due to the converter inherent higher voltage harmonics and pulse frequencies special phenomena are caused inside the machine which can be the reason for malfunction. It is demonstrated that additional losses create additional temperature increases or voltage peaks. The book describes how torque ripple can occur, which endanger the mechanical shaft system and last but not least shaft voltages are induced, which are sometimes sufficient in amplitude to damage bearings or to disturb sensors of the protection arrangements.
1. Schlagwortkette	Umformer
1. Schlagwortkette	Elektrische Maschine
SWB-Titel-Idn	378522507
Signatur	Springer E-Book
Bemerkungen	Elektronischer Volltext - Campuslizenz
Elektronische Adresse	$uhttp://dx.doi.org/10.1007/978-3-642-36282-8
Internetseite / Link	Volltext
Siehe auch	Inhaltsverzeichnis
Siehe auch	Inhaltstext
Siehe auch	Volltext
Siehe auch	Cover

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