Circuitos eléctricos: problemas y ejercicios resueltos Julio Usaola García, María Ángeles Moreno López de Saá

PARA LOS ESTUDIANTES DE INGENIERIA ELECTRICA LO ENCONTRE EN EL
WEBSITE:
http://bookzz.org/book/1250525/681348

Pulsed neutron sources. Valery Shvetsov, Cand., Director of the LNP JINR 2013 Импульсные источники нейтронов. Валерий Швецов, к.ф-м.н., директор ЛНФ О...

JINR and Fermilab - preparation for the experiment "Mu2e" 2014 ОИЯИ и Fermilab – подготовка к эксперименту «Mu2е» 2014

Ph.D. Thesis Rechargeable lithium battery energy storage systems for vehicular applications PhD. Candidate: Tarun Huria UNIVERSITÀ DI PISA Engineering School “Leonardo da Vinci”

Abstract Batteries are used on-board vehicles for broadly two applications – starting-lighting-ignition (SLI) and vehicle traction. This thesis examines the suitability of the rechargeable lithium battery for both these applications, and develops algorithms for runtime prediction of the remaining battery charge. The largest market-share of rechargeable batteries is for the SLI application. Lead-acid batteries rule this market presently, although a handful of lithium SLI batteries have recently appeared on the market. The practicality of different lithium battery chemistries has been evaluated for this application over wide-ranging criteria and it has been found that the batteries based on lithium iron phosphate and lithium titanate oxide chemistries commercially available in the market are the most suitable. Lithium SLI batteries would require a higher initial cost and additional electronic hardware in the form of battery management and thermal management systems, but would last the life-time of the vehicle. In fact, with the decrease in the cost of lithium SLI batteries with higher volumes, over the life-time of the vehicle, the total costs of the existing lead-acid battery and the lithium battery would be about the same.
LINK
http://www.dsea.unipi.it/Members/huriaw/phd-thesis.pdf

Modular Multilevel Converters for HVDC power stations SERBIA, Nicola Institut National Polytechnique de Toulouse (INP Toulouse)

SUMMARY
This work was performed in the frame of collaboration between the Laboratory on Plasma and Energy Conversion (LAPLACE), University of Toulouse, and the Second University of Naples (SUN). This work was supported by Rongxin Power Electronic Company (China) and concerns the use of multilevel converters in High Voltage Direct Current (HVDC) transmission. For more than one hundred years, the generation, the transmission, distribution and uses of electrical energy were principally based on AC systems. HVDC systems were considered some 50 years ago for technical and economic reasons. Nowadays, it is well known that HVDC is more convenient than AC for overhead transmission lines from 800 - 1000 km long. This break-even distance decreases up to 50 km for underground or submarine cables. Over the twenty-first century, HVDC transmissions will be a key point in green electric energy development. Due to the limitation in current capability of semiconductors and electrical cables, high power applications require high voltage converters. Thanks to the development of high voltage semiconductor devices, it is now possible to achieve high power converters for AC/DC conversion in the GW power range. For several years, multilevel voltage source converters allow working at high voltage level and draw a quasi-sinusoidal voltage waveform. Classical multilevel topologies such as NPC and Flying Capacitor VSIs were introduced twenty years ago and are nowadays widely used in Medium Power applications such as traction drives. In the scope of High Voltage AC/DC converters, the Modular Multilevel Converter (MMC), proposed ten years ago by Professor R. Marquardt from the University of Munich (Germany), appeared particularly interesting for HVDC transmissions.
LINK
http://hal.archives-ouvertes.fr/docs/00/94/53/75/PDF/SERBIA_2014.pdf