Static frequency converter which compensates for fluctuations in

Details Static frequency converter which compensates for fluctuations in Static frequency converter which compensates for fluctuations in

1993-12-28

1997-01-07

Tso, Edward H.

Electric power conversion systems

Current conversion

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

H02J 300, H02M 540

Patent

active

055923682

ABSTRACT:
The static frequency converter controlled by a control parameter processing and command generation element includes an active filter at the terminals of a dc/dc converter powering a load, wherein the active filter includes an inductance (L1) in series with a diode (D1) grounded through a condenser (C0) and a switch (K5) controlled by the control parameter processing and command generation element and that the dc/dc converter includes at least one complete bridge, one of the arms of which has two condensers (C1,C2) and the other arm has four switches (K1. . . K4). This converter can be used with all load types that can be controlled by frequency converters, and more particularly to a transformer type inductive load or alternating electric motors, with or without commutators, and particularly to single phase and multiphase asynchronous motors.

REFERENCES:
patent: 4533986 (1985-08-01), Jones
patent: 4719559 (1988-01-01), Sokal et al.
patent: 4788485 (1988-11-01), Kawagishi et al.
patent: 4827151 (1989-05-01), Okado
patent: 4855652 (1989-08-01), Yamashita et al.
patent: 5063490 (1991-11-01), Maehara et al.
patent: 5111376 (1992-05-01), Mehl

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