Premium
Transient analysis of converter‐fed adjustable‐speed generator‐motor for the pumped storage power plant
Author(s) -
Yanagisawa Tadahiro,
Kageyama Takahisa,
Okamura Kazuhiko,
Kusunoki Kiyoshi,
Taguchi Tadashi,
Abe Michiyuki,
Kaneko Hirokazu
Publication year - 1996
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.4391160206
Subject(s) - cycloconverter , rotor (electric) , fault (geology) , engineering , generator (circuit theory) , transient (computer programming) , induction generator , wound rotor motor , control theory (sociology) , electric generator , shunt generator , steam turbine , permanent magnet synchronous generator , power (physics) , automotive engineering , electrical engineering , induction motor , computer science , wind power , voltage , physics , mechanical engineering , control (management) , quantum mechanics , artificial intelligence , seismology , geology , operating system
A converter‐fed adjustable‐speed generator‐motor for a pumped storage power plant has been developed in order to contribute to the automatic frequency control on an electric power system during pumping operations, as well as to improve the efficiency of turbines during generating operations together with stability. This system consists of a reversible pump turbine, a generator motor, cycloconverter and control units. The rotor of the generator motor, which is coupled directly with the turbine runner, normally is operated at a rotating speed which is equal to the difference between the frequency of the electric power system and that of the rotor current. In the state that a fault has occurred in the primary circuit of the generator motor, the adjustable‐speed generator‐motor fault current differs from that of a conventional synchronous generator motor. This paper describes the fault current analysis results for the condition when a sudden short‐circuit is made on the primary side of the generator motor, and collates the results with the field test and EMTP simulation results.