Electric Drives

Electric Drives provides a practical understanding of the subtleties involved in the operation of modern electric drives. The Third Edition of this bestselling textbook has been fully updated and greatly expanded to incorporate the latest technologies used to save energy and increase productivity, stability, and reliability. Every phrase, equation, number, and reference in the text has been revisited, with the necessary changes made throughout. In addition, new references to key research and development activities have been included to accurately reflect the current state of the art. Nearly 120 new pages covering recent advances, such as those made in the sensorless control of A.C. motor drives, have been added; as have two new chapters on advanced scalar control and multiphase electric machine drives. All solved numerical examples have been retained, and the 10 MATLAB®–Simulink® programs remain online. Thus, Electric Drives, Third Edition offers an up-to-date synthesis of the basic and advanced control of electric drives, with ample material for a two-semester course at the university level.

Energy Conversion in Electric DrivesElectric Drive: DefinitionApplication Range of Electric DrivesEnergy Savings Pay Off RapidlyGlobal Energy Savings through PEC DrivesMotor/Mechanical Load MatchMotion/Time Profile MatchLoad Dynamics and StabilityMultiquadrant OperationPerformance IndexesElectric Drive ApplicationsSummaryProblemsReferences Electric Motors for DrivesElectric Drives: A Typical ConfigurationElectric Motors for DrivesD.C. Brush MotorsConventional A.C. MotorsPEC-Dependent MotorsEnergy Conversion in Electric Motors/GeneratorsSummaryReferences Power Electronic Converters for DrivesPower Electronic SwitchesLine Frequency Diode Rectifier for Constant D.C. Output Voltage VdLine Current Harmonics with Diode RectifiersCurrent Commutation with Id = ct and LS ? 0Three-Phase Diode RectifiersPhase-Controlled Rectifiers (A.C.–D.C. Converters)D.C.–D.C. Converters (Choppers)D.C.–A.C. Converters (Inverters)Direct A.C.–A.C. ConvertersSummaryProblemsReferences D.C. Brush Motors for DrivesBasic TopologiesMotion-Induced Voltage (e.m.f.)Performance Equations: d-q ModelSteady-State Motor CharacteristicsD.C. Brush Motor LossesVarying the SpeedTransient Operation for Constant FluxPM D.C. Brush Motor TransientsTransient Operation for Variable FluxSpeed/Excitation Voltage Transfer FunctionD.C. Brush Series MotorA.C. Brush Series MotorSummaryProblemsReferences Controlled Rectifier D.C. Brush Motor DrivesIntroductionPerformance IndicesSingle-Phase PES-Controlled RectifierSingle-Phase SemiconverterSingle-Phase Full ConverterThree-Phase SemiconverterThree-Phase Full Converter: Motor SideThree-Phase Full Converter: Source-Side AspectsDual Converter: Four-Quadrant OperationA.C. Brush Series (Universal) Motor ControlSummaryProblemsReferences Chopper-Controlled D.C. Brush Motor DrivesIntroductionFirst-Quadrant (Step-Down) ChopperSecond-Quadrant (Step-Up) Chopper for Generator BrakingTwo-Quadrant ChopperFour-Quadrant ChopperInput FilterBasic PM D.C. Motor Closed-Loop Drive/MATLAB®–Simulink® (Available Online)SummaryProblemsReference Closed-Loop Motion Control in Electric DrivesIntroductionCascaded Motion ControlState-Space Motion ControlTorque Perturbation ObserversPath TrackingForce ControlSliding-Mode Motion ControlMotion Control by Fuzzy SystemsMotion Control through NNsNeuro-Fuzzy NetworksSummaryProblemsReferences Induction Motors for DrivesStator and Its Traveling FieldCage and Wound Rotors Are EquivalentSlot Shaping Depends on Application and Power LevelInductance MatrixReducing the Rotor to StatorPhase Coordinate Model Goes to Eighth OrderSpace-Phasor ModelSpace-Phasor Diagram for Electrical TransientsElectrical Transients with Flux Linkages as VariablesComplex Eigenvalues for Electrical TransientsElectrical Transients for Constant Rotor FluxSteady State: It Is D.C. in Synchronous CoordinatesNo-Load Ideal Speed May Go under or over Conventional Value ?1Motoring, Generating, A.C. BrakingD.C. Braking: Zero Braking Torque at Zero SpeedSpeed Control MethodsV1/f1 Torque Speed CurvesOnly for Constant Rotor Flux Torque Speed Curves Are LinearConstant Stator Flux Torque Speed Curves Have Two Breakdown PointsSplit-Phase Induction MotorSplit-Phase Capacitor IM TransientsSummaryProblemsReferences PWM Inverter-Fed Induction Motor DrivesIntroductionVC: General Flux OrientationGeneral Current DecouplingParameter Detuning Effects in Rotor Flux Orientation Current DecouplingDirect versus Indirect Vector Current DecouplingA.C. versus D.C. Current ControllersVoltage DecouplingVoltage and Current Limitations for the Torque and Speed Control RangeImpressing Voltage and Current Waveforms through PWMIndirect Vector A.C. Current Control: A Case Study in MATLAB–Simulink (Available Online)Indirect Vector Synchronous Current Control with Speed Sensor: A Case Study in MATLAB–Simulink (Available Online)Flux Observers for Direct Vector Control with Motion SensorsFlux and Speed Observers in Motion Sensorless DrivesDirect Torque and Flux ControlDTFC Sensorless: A Case Study in MATLAB–Simulink (Available Online)Feedback Linearized ControlPredictive ControlScalar (V1/f1) ControlSelf-CommissioningSummaryProblemsReferences Synchronous Motors for DrivesIntroductionConstruction AspectsPulsating TorquePhase Coordinate ModelSpace-Phasor (d-q) ModelSteady-State OperationTo Vary Speed, Variable Frequency Is MandatoryCogging Torque and Tooth-Wound PMSMsSingle-Phase PMSMSteady-State Performance of Single-Phase PMSMSingle-Phase PMSM FEM Modeling for TransientsSummaryProblemsReferences PM and Reluctance Synchronous Motor DrivesIntroductionPMSM Drives: ClassificationsRectangular Current Control (Brushless D.C. Motor Drives)Vector (Sinusoidal) ControlDTFC of PMSMsSensorless Control of PMSMsRSM DrivesHigh-Frequency (Speed) PMSM DrivesSingle-Phase PMSM ControlSummaryProblemsReferences Switched Reluctance Motor DrivesIntroductionConstruction and Functional AspectsAverage Torque and Energy Conversion RatioPeak kW/kVA RatioCommutation WindingsSRM ModelingFlux–Current–Position Curve FittingSRM DrivesGeneral-Purpose Drive with Position SensorHigh-Grade (Servo) DrivesSensorless SRM DrivesVoltage–Current Model-Based Position Speed ObserverSingle-Phase SRM ControlRecent Reluctance Motor DrivesSummaryProblemsReferences Practical Issues with PWM Converter Motor DrivesIntroductionBasic PWM Converter DriveLine Current HarmonicsLong Motor Power Cables: Voltage Reflection and AttenuationMotor Model for Ultrahigh FrequencyCommon Mode Voltage: Motor Model and ConsequencesCommon Mode (Leakage) Stator Current ReductionCirculating Bearing CurrentsReducing the Bearing CurrentsElectromagnetic InterferenceAudible NoiseLosses in PWM Converter DrivesSummaryProblemsReferences Large-Power DrivesPower and Speed Limits: Moving UpVoltage-Source Converter SM DrivesHigh-Power SCRsVector Control in Voltage Source Converter D.C.-Excited SM DrivesDTFC of D.C.-Excited SM DrivesSensorless Control of a D.C.-Excited SM via "Active Flux:" A Case StudyLarge Motor Drives: Working Less Time per Day Is BetterRectifier CSI-SM Drives: The Basic SchemeRectifier CSI-SM Drive: Steady State with Load CommutationSub- and Hyper-Synchronous IM Cascade DrivesSummaryProblemsReferences Control of Electric GeneratorsIntroductionControl of SGs in Power SystemsControl of WRIGs with Limited Speed RangeAutonomous D.C.-Excited SG Control at Variable SpeedCage-Rotor Induction Generator ControlPM Synchronous Generator Control for Variable SpeedSwitched Reluctance Generator ControlSummaryReferences Scalar V/f and I–f Control of A.C. Motor Drives: An OverviewIntroductionInduction Machines V/f and I–f Open and Closed-Loop ControlV/f Advanced Control of PMSMsOne-Phase PMSM I–f Starting and e.m.f.-Based Sensorless ControlSummaryReferences Multiphase Electric Machine Drives: An OverviewIntroductionMultiphase IM Modeling and Parameter EstimationMultiphase IM Drives Control StrategiesMultiphase PMSM Drives Control under Open-Phase FaultsBLDC Multiphase Reluctance Machines: Topology, Modeling, and Control: A Case StudySummaryReferences

Ion Boldea is professor emeritus of electrical engineering at the University Politehnica Timisoara, Romania. A life fellow of the Institute of Electrical and Electronics Engineers (IEEE), Professor Boldea has worked, published, lectured, and consulted extensively on rotary and linear electric machines, drives, and maglevs for more than 40 years. He has received many accolades, including the IEEE Nikola Tesla Award (2015). Syed A. Nasar (deceased) was James R. Boyd professor emeritus of electrical engineering at the University of Kentucky, Lexington, USA. A life fellow of the Institute of Electrical and Electronics Engineers (IEEE), Professor Nasar received the IEEE Nikola Tesla Award (2000), among other accolades. His research efforts were focused on electric motors.