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Living Reviews is an open access journal series, which publishes regularly updated peer-reviewed review articles in various fields of science. Its concept of "living" articles takes advantage of web-based electronic publishing and allows authors to update their articles with the latest developments and research findings.
A cycloconverter (CCV) or a cycloinverter converts a constant amplitude, constant frequency AC waveform to another AC waveform of a lower frequency by synthesizing the output waveform from segments of the AC supply without an intermediate DC link (Dorf 1993, pp. 2241–2243 and Lander 1993, p. 181). There are two main types of CCVs, circulating ...
In academic publishing, a "living" review is a review article that is updated at intervals to reflect the latest research. Living reviews are typically published online. Unlike in a print journal, readers are notified of newer versions. While each version must be cited separately, a living review acts as version control for the state of research.
A cycloconverter is also a type of frequency changer. Unlike a VFD, which is an indirect frequency changer since it uses an AC-DC stage and then a DC-AC stage, a cycloconverter is a direct frequency changer because it uses no intermediate stages. Another application is in the aerospace and airline industries. Often airplanes use 400 Hz power so ...
A cycloconverter constructs an output, variable-frequency, approximately sinusoid waveform by switching segments of the input waveform to the output; there is no intermediate DC link. With switching elements such as SCRs, the output frequency must be lower than the input.
The tap converter is a variation on the cycloconverter, invented in 1981 by New York City electrical engineer Melvin Sandler and significantly functionally enhanced in 1982 through 1984 by graduate students Mariusz Wrzesniewski, Bruce David Wilner, and Eddie Fung.
Thus, in addition to a review journal, Living Reviews can be used by its readers as a database, an encyclopedia, or a resource letter. Living Reviews in Solar Physics has become a valuable tool for the scientific community and one of the first places a researcher looks for information about current work in solar and heliospheric physics. [1]
The cycloconverter can feed power in both directions and thus the machine can be run both sub- and oversynchronous speeds. Large cycloconverter-controlled, doubly fed machines have been used to run single phase generators feeding 16 + 2 ⁄ 3 Hz railway grid in Europe. [ 10 ]