In the study of rotating machines, Park transform eliminates dependence on the reciprocal angular coupling displacement between stator and rotor. The Graetz bridge three‐phase rectifier is the most widely used solution for generating a DC power supply from the basic symmetrical triple sinusoidal voltages of the industrial mains network. The controlled semiconductor devices such as thyristors can be driven into conduction by injecting a control current into a dedicated terminal known as the gate. This chapter illustrates the operation of forced switching converter and analyzes the different types of forced switching converters currently available and the related control techniques. The purpose is to identify their possible applications in DC traction systems, in particular for harnessing the energy related to regenerative braking by returning it to the AC network. Finally, the chapter explains how the characteristic of multilevel converters is particularly suitable for use in high‐voltage applications.
Basic Notions for the Study of Electric Traction Systems
2018-02-12
82 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Railless electric traction systems
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