Electric power converter

Details Electric power converter Electric power converter

1988-03-29

1989-08-15

Wong, Peter S.

Electric power conversion systems

Frequency conversion without intermediate conversion to d.c.

By semiconductor converter

363164, 363 39, 323207, 323212, 318729, 318799, 318809, H02M 5257

Patent

active

048581003

ABSTRACT:
An electric power converter, in which a plurality of converters convert a first electric power having a first frequency into a second electric power having a second frequency, and the second electric power is supplied to a load such as an electric motor, and in which a correction controller changes a reference voltage to generate reference voltage signals to be supplied to the converters in order to shift firing phase angles of the converters, thereby preventing a generation of higher harmonics of integer orders of the first electric power.

REFERENCES:
patent: 4303972 (1981-12-01), Stacey et al.
patent: 4529925 (1985-07-01), Tanaka et al.
patent: 4600874 (1986-07-01), Tupper et al.
patent: 4647837 (1987-03-01), Stemmler

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