Title :
Development of 300 MW frequency converter
Author :
Ohkami, T. ; Fujimoto, T. ; Ito, H. ; Konno, S. ; Tanaka, T. ; Ito, K. ; Imura, M. ; Ota, S. ; Tobita, M. ; Kawaguchi, A. ; Kawakami, N. ; Takagi, K. ; Shimada, K. ; Aizawa, H. ; Kuroda, H. ; Kobayashi, T. ; Takechi, M. ; Kato, K.
Author_Institution :
Toshiba Mitsubishi-Electr. Ind. Syst. Corp. (TMEIC), Tokyo, Japan
Abstract :
An extremely high-reliability 300 MW frequency converter has been developed. To achieve high reliability, the frequency converter adopts several dual (redundant) methods. The fault-system-lock function and the online recovery function greatly enhance the system reliability, allowing the Shin-Shinano FC to continue to operate almost without any stoppages due to faults. High-volume, non-volatile CPLDs are utilized in the controller, and a simple controller configuration is also achieved, which makes maintenance easy.
Keywords :
fault diagnosis; frequency convertors; power system reliability; programmable logic devices; Shin-Shinano FC; complex programmable logic device; fault-system-lock function; frequency converter; high-reliability dual system; nonvolatile CPLD; online recovery function; power 300 MW; Circuit faults; Control systems; Frequency conversion; Indium tin oxide; Power electronics; Power grids; Power system reliability; Thyristors; Valves; Voltage control; High power (300 MW) frequency converter; breakover voltage (VBO)–free light triggered thyristor; extremely high-reliability dual system; multi-series-connected thyristor devices;
Conference_Titel :
Power Electronics Conference (IPEC), 2010 International
Conference_Location :
Sapporo
Print_ISBN :
978-1-4244-5394-8
DOI :
10.1109/IPEC.2010.5543469
