Ion Boldea

Variable Speed Generators, the second of two volumes in the Electric Generators Handbook, provides extensive coverage of variable speed generators in distributed generation and renewable energy applications around the world. The book delves into the steady state, transients, control, and design of claw-pole-rotor synchronous, induction, permanent-magnet-(PM)-assisted synchronous, and switched reluctance starter alternators for electric hybrid vehicles. It discusses PM synchronous, transverse flux PM, and flux reversal PM generators for low-speed wind and hydro energy conversion. It also explores linear motion alternators for residential and spacecraft applications. Numerous design and control examples illustrate the exposition.Fully revised and updated to reflect the last decade’s worth of progress in the field, this Second Edition adds new sections that:Address the ride-through control of doubly fed induction generators under unbalanced voltage sagsConsider the control of stand-alone doubly fed induction generators under unbalanced nonlinear loadsDetail a stand-alone squirrel cage induction generator (SCIG) with AC output and a low-rating pulse-width modulated (PWM) converterPresent a twin stator winding SCIG with 50 percent rating inverter and diode rectifier, and a dual stator winding induction generator with nested cage rotorExamine interior permanent magnet claw-pole-alternator systems for more vehicle braking energy recuperation, and high power factor Vernier PM generatorsDepict a PM-assisted reluctance synchronous motor/generator for an electric hybrid vehicle, and a double stator switched reluctance generator with segmented rotorDescribe the grid to stand-alone transition motion-sensorless dual-inverter control of permanent magnet synchronous generators with asymmetrical grid voltage sags and harmonics filtering The promise of renewable, sustainable energy rests on our ability to design innovative power systems that are able to harness energy from a variety of sources. Variable Speed Generators, Second Edition supplies state-of-the-art tools necessary to design, validate, and deploy the right power generation technologies to fulfill tomorrow's complex energy needs.

Synchronous Generators, the first of two volumes in the Electric Generators Handbook, offers a thorough introduction to electrical energy and electricity generation, including the basic principles of electric generators. The book devotes a chapter to the most representative prime mover models for transients used in active control of various generators. Then, individual chapters explore large- and medium-power synchronous generator topologies, steady state, modeling, transients, control, design, and testing. Numerous case studies, worked-out examples, sample results, and illustrations highlight the concepts.Fully revised and updated to reflect the last decade’s worth of progress in the field, this Second Edition adds new sections that:Discuss high-power wind generators with fewer or no permanent magnets (PMs)Cover PM-assisted DC-excited salient pole synchronous generatorsPresent multiphase synchronous machine inductances via the winding function methodConsider the control of autonomous synchronous generatorsExamine additional optimization design issuesIllustrate the optimal design of a large wind generator by the Hooke–Jeeves methodDetail the magnetic equivalent circuit population-based optimal design of synchronous generatorsAddress online identification of synchronous generator parametersExplain the small-signal injection online techniqueExplore line switching (on or off) parameter identification for isolated gridsDescribe synthetic back-to-back load testing with inverter supplyThe promise of renewable, sustainable energy rests on our ability to design innovative power systems that are able to harness energy from a variety of sources. Synchronous Generators, Second Edition supplies state-of-the-art tools necessary to design, validate, and deploy the right power generation technologies to fulfill tomorrow's complex energy needs.