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Hybrid Excited Synchronous Machines
Our transition towards a cleaner and more sustainable future has seen an increase in the use of electrical energy in the functioning of our society. This implies the need to develop tools and methods which allow us to study electromagnetic devices and ensure their functioning for as long as possible. This requires us to use these tools to understand their behavior, not just as one component, but also in the entire systems in which they can be found, throughout their life cycle. This book provides electrical engineering students and researchers with the resources to analyze how synchronous machines behave over their entire field of operation, particularly focusing on hybrid excited synchronous machines (HESMs). The field of HESMs, although not a fundamental problem in the strict sense of the term, provides answers to a range of fundamental problems: the flux weakening of permanent magnet machines, energy optimization, and lastly the increasing costs of rare-earths permanent magnets.
Fixing France
France—the romanticised, revolutionary land of Liberty, Equality and Fraternity for all—is failing. Reform is urgently needed. This book is a powerful indictment of the status quo, and a highly original perspective on the challenges to which the nation must rise. Nabila Ramdani is not from the establishment elite: she is a marginalised insider, born and raised in a neglected Paris suburb. With unflinching clarity, she probes the fault lines of her struggling country, exposing the Fifth Republic as an archaic system which emerged from Algeria’s cataclysmic War of Independence. Today, a monarchical President Macron shows little interest in democracy, while a far-right party founded by Nazi collaborators threatens to replace him. Segregation, institutionalised rioting, economic injustice, the debasement of women, a monolithic education system, deep-seated racial and religious discrimination, paramilitary policing, terrorism and extremism, and a duplicitous foreign policy all fuel the growing crisis. Yet Ramdani offers real hope: the broken French Republic can, and must, be fixed.
ELECTRIMACS 2022
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Mathematical Models for the Design of Electrical Machines
This book is a comprehensive set of articles reflecting the latest advances and developments in mathematical modeling and the design of electrical machines for different applications. The main models discussed are based on the: i) Maxwell–Fourier method (i.e., the formal resolution of Maxwell’s equations by using the separation of variables method and the Fourier’s series in 2-D or 3-D with a quasi-Cartesian or polar coordinate system); ii) electrical, thermal and magnetic equivalent circuit; iii) hybrid model. In these different papers, the numerical method and the experimental tests have been used as comparisons or validations.
Proceedings
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