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Development of a large‐capacity static var generator using self‐cornmutated inverters for improving power transmission system stability
Author(s) -
Hasegawa Taizo,
Betsui Takashi,
Ohnishi Shuichi,
Takeda Masatoshi,
Seto Makoto,
Murakami Shotaro,
Kohan Toyokazu
Publication year - 1993
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.4391130110
Subject(s) - thyristor , transformer , inverter , scalable vector graphics , series and parallel circuits , electronic engineering , electrical engineering , generator (circuit theory) , engineering , computer science , power (physics) , voltage , physics , quantum mechanics , operating system
A Static Var Generator (SVG) based on a self‐commutated inverter using GTO thyristors has been newly developed. The size of the SVG used for improving power system stability will be as large as approximately 100 MVA. The technical subjects to be solved for developing such a large SVG are summarized as follows:compact design; harmonic elimination by means of multiple transformers; and large inverter with series connection of GTO thyristors.This paper describes the solutions to these subjects, especially the application of a large number of multipulse connection and series connection of GTO thyristors, including the analysis of the basic performance of SVG and the multiple transformer. The test results of a 12‐pulse partial model (8 MVA) and a 48‐pulse miniaturized model prove the solutions proposed in this paper to be effective and reasonable.