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Study on method to detect loss of synchronism using bus voltage and line current measured on a line using power system simulator
Author(s) -
Takaoka Masaomi,
Kiuchi Toru,
Sato Masahiro
Publication year - 2006
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.20346
Subject(s) - synchronism , line (geometry) , electrical engineering , blackout , voltage , engineering , electric power transmission , power (physics) , control theory (sociology) , synchronization (alternating current) , generator (circuit theory) , electric power system , fault (geology) , computer science , electronic engineering , topology (electrical circuits) , mathematics , physics , geometry , control (management) , quantum mechanics , artificial intelligence , seismology , geology
Abstract A severe fault may cause loss of synchronism of a small number of generators. And it may take many generators out of service resulting in a wide area blackout. When two groups of generators lose synchronism, the magnitude of voltage on some lines becomes zero. Therefore, an approach whereby lines with zero voltage are opened has been employed in order to prevent loss of synchronism from extension. This paper presents a new method using voltage and current measured on a line during disturbance to detect the line with zero voltage at the instant when loss of synchronism takes place. A method to detect loss of synchronism using voltage and current measured on a line was already proposed. This paper presents results of the tests performed using a power system simulator which is composed of a DC motor, a synchronous generator, artificial transmission line, circuit breaker equipment, and so on. The validity of the proposed methods was verified by finding loss of synchronism correctly. © 2006 Wiley Periodicals, Inc. Electr Eng Jpn, 155(4): 7–19, 2006; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.20346