Electric power conversion systems – Current conversion – Having plural converters for single conversion
Patent
1997-10-17
1999-08-31
Riley, Shawn
Electric power conversion systems
Current conversion
Having plural converters for single conversion
363 71, 363 96, 307 82, H02M 700
Patent
active
059462051
ABSTRACT:
A power conversion system including a plurality of converter transformers. AC side windings of the converter transformers are connected in series for connecting to an AC power system. The power conversion system further includes a plurality of series connected voltage source type self-commutated converters for converting AC power into DC power or DC power into AC power. Each of the voltage source type self-commutated converters is connected to one of DC side windings of the converter transformers, respectively. The power conversion system further includes a plurality of DC voltage sources. Each of DC output sides of the voltage source type self-commutated converters is connected to one of the DC voltage sources, respectively. The power conversion system further includes a control system for controlling the voltage source type self-commutated converters such that each of DC voltages of the voltage source type self-commutated converters follows to one of DC voltage reference values for the voltage source type self-commutated converters, respectively.
REFERENCES:
patent: 5179510 (1993-01-01), Tokiwa et al.
patent: 5473528 (1995-12-01), Hirata et al.
patent: 5666275 (1997-09-01), Inokuchi et al.
Masahiro Takasaki, et al., Transactions of the Institute of Electrical Engineers of Japan, vol. 8, No. 638, pp. 862 and 863, Aug. 1996, "Development of Cascade Multi-Connected Self-Commutated Converters".
Irokawa Shoichi
Kawakami Noriko
Suzuki Hirokazu
Suzuki Ken'ichi
Kabushiki Kaisha Toshiba
Riley Shawn
Tokyo Electric Power Company Incorporated
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