AC to AC Power converter with a controllable power factor

Details AC to AC Power converter with a controllable power factor AC to AC Power converter with a controllable power factor

1981-08-14

1982-09-28

Shoop, William M.

Electric power conversion systems

Frequency conversion without intermediate conversion to d.c.

By semiconductor converter

323207, H02M 522

Patent

active

043521568

ABSTRACT:
The input power factor of an AC to AC static power converter is continuously adjustable between a maximum leading or lagging phase angle, determined by the load power factor, through rapidly transferring between conventional and complementary unrestricted frequency changer operation with the proportion of each sub generator cycle interval dedicated to each mode of operation being selected to produce the desired input power factor. Since the input power factor affects generator excitation, the input power factor control can be used in a closed loop feedback control system to regulate generator voltage.

REFERENCES:
patent: 3419785 (1968-12-01), Lafuze
patent: 3493838 (1970-02-01), Gyugyi et al.
patent: 3707665 (1972-12-01), Gyugyi
patent: 3707666 (1972-12-01), Gyugyi
patent: 3707667 (1972-12-01), Gyugyi
patent: 3959719 (1976-05-01), Espelage

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