Filter for variable speed, constant frequency electrical system

Details Filter for variable speed, constant frequency electrical system Filter for variable speed, constant frequency electrical system

1988-11-02

1989-08-29

Wong, Peter S.

Electric power conversion systems

Current conversion

Including an a.c.-d.c.-a.c. converter

363 39, 322 10, 322 12, 322 58, 290 36R, 290 38R, H02M 545

Patent

active

048623415

ABSTRACT:
A variable speed, constant frequency electrical generating system has a variable speed, engine driven generator. The system operates in either a generate or an engine start mode. A bidirectional filter connected between the rectifier-converter and the AC bus traps or blocks switching harmonics from the rectifier-converter. Shunt trap circuits are connected either phase-to-phase or phase-to-neutral.

REFERENCES:
patent: 3290578 (1966-12-01), Ainsworth
patent: 3461372 (1969-08-01), Pickup et al.
patent: 3555291 (1971-01-01), Dewey
patent: 3577059 (1971-05-01), Kelley
patent: 3746963 (1973-07-01), VeNard
patent: 3813593 (1974-05-01), Tice et al.
patent: 3908130 (1975-09-01), Lafuze
patent: 4330743 (1982-05-01), Glennon
patent: 4481459 (1984-11-01), Mehl et al.
patent: 4695939 (1987-09-01), Canay
patent: 4739464 (1988-04-01), Nishihiro et al.
SAE Technical Paper Series 871887, Aerospace Technology Conference and Exposition, Long Beach, Calif., Oct. 5-8, 1987.

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