Multiconverter power systems and their applications

As the power systems evolve to contain more and more solid-state devices, a new type of power, system emerges. We call this solid-state. silicon rich, silicon intensive, power electronics based, or, as is named in this paper, multiconverter power systems. In these systems, solid-state switching powe r converters are extensively used for generating, distributing, and utilizi ng of electrical energy throughout the system, Different converters, such a s DC/DC choppers, DC/AC inverters, AC/AC cycloconverters, and AC/DC rectifi ers, are used in source, load, and distribution subsystems to provide power at different voltage levels and both DC and AC forms. Most of the loads ar e also in the form of power electronic converters and motor drives. These systems have a broad variety of applications from small multiconverte r power systems, such as automotive power systems, Electric and Hybrid Elec tric Vehicles (EV & HEV), advanced industrial electrical systems, telecommu nications, and terrestrial computer systems with a few converters, to large systems, such as International Space Station (ISS), spacecraft, modem airc raft, submarine, and Afore Electric Ship (MES) power systems with many conv erters. Furthermore, these unconventional power systems have unique charact eristics, dynamics, and stability problems that are just beginning to be ap preciated. In this paper, we take a closer look at multiconverter power sys tems and address the fundamental problems faced in these systems. We also p ropose the multi converter power systems as a new area of specialized resea rch, which will have benefits in many applications.