The Rediscovery of Synchronous Reluctance and Ferrite Permanent Magnet Motors

<p>This book offers an essential compendium on theanalysis and design of synchronous motors for variable-speed applications.Focusing on synchronous reluctance and ferrite permanent-magnet (PM)synchronous reluctance machines it provides a broad perspective on three-phasemachines for variable speed applications a field currently dominated byasynchronous machines and rare-earth PM synchronous machines. It also describessynchronous reluctance machines and PM machines without rare-earth materialscomparing them to state-of-the-art solutions. The book provides readers withextensive information on and finite element models of PM synchronous machinesincluding all relevant equations and with an emphasis on synchronous-reluctanceand PM-assisted synchronous-reluctance machines. It covers ferrite-assistedmachines modeled as a subcase of PM-assistance fractional slot combinationssolutions and a quantitative normalized comparison of torque capability withbenchmark PM machines. The book discusses a wealth of techniques foridentifying machine parameters with an emphasis on self-commissioningalgorithms and presents methods for automated machine design and optimizationincluding a software tool developed for this purpose. Addressing an importantgap in the field of PM-less and less-PM electrical machines it is intended asa self-contained reference guide for both graduate students and professionalmachine designers and as a useful text for university courses on automatedand/or optimized design of electrical machines and drives.</p>